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1. Climate change and range restriction of common salamanders in eastern Canada and the United States

Author:
Brian W. Widmer; Thomas M. Gehring; Benjamin W. Heumann; Kirsten E. Nicholson
Source:
journal of wildlife management 2022 v.86 no.5 pp. e22235
ISSN:
0022-541X
Subject:
Ambystoma; Plethodon cinereus; biodiversity; climate; climate change; databases; ecological value; greenhouse gases; meteorological data; niches; risk; salamanders and newts; wildlife management; Canada
Abstract:
... The sensitivity of amphibian species to shifts in environmental conditions has been exhibited through long‐term population studies and the projection of ecological niche models under expected conditions. Species in biodiversity hotspots have been the focus of ample predictive modeling studies, while, despite their significant ecological value, wide‐ranging and common taxa have received less attent ...
DOI:
10.1002/jwmg.22235

2. Divergent physiological acclimation responses to warming between two co-occurring salamander species and implications for terrestrial survival

Author:
Arianne F. Messerman; Micah Turrell; Manuel Leal
Source:
Journal of thermal biology 2022 v.106 pp. 103228
ISSN:
0306-4565
Subject:
Ambystoma; acclimation; climate change; energy; habitats; juveniles; nests; salamanders and newts; spring; surface area; survival rate; sympatry; temperature
Abstract:
... Small differences in physiological responses are known to influence demographic rates such as survival. We tested for differences in the physiological acclimation responses of two closely-related salamander species that often co-occur, Ambystoma maculatum and A. opacum. Specifically, we measured changes in critical thermal maxima (CTₘₐₓ), standard metabolic rates (SMRs), and respiratory surface ar ...
DOI:
10.1016/j.jtherbio.2022.103228

3. The Effects of Livestock, Proximity to Trees, and Aquatic Characteristics on the Abundance of Ambystoma Altamirani within a Stream

Author:
Wendoline Gómez Franco; Geoffrey R. Smith; Julio A. Lemos-Espinal
Source:
Journal of herpetology 2022 v.56 no.1 pp. 56-59
ISSN:
1937-2418
Subject:
Ambystoma; adults; anthropogenic stressors; aquatic habitat; herpetology; larvae; livestock; salamanders and newts; streams; water temperature; Mexico
Abstract:
... The endangered, endemic salamander, Ambystoma altamirani, is distributed in streams in the Transvolcanic Belt around Mexico City. Like other Mexican ambystomatids, A. altamirani is threatened by several anthropogenic stressors, including land use changes. Here we examine how aspects of the terrestrial habitat, such as the distance to wooded habitats and the presence of livestock, as well as severa ...
DOI:
10.1670/20-118

4. Modelling physiological costs to assess impacts of climate change on amphibians in Yellowstone National Park, U.S.A

Author:
Paul E. Bartelt; Peter E. Thornton; Robert W. Klaver
Source:
Ecological indicators 2022 v.135 pp. 108575
ISSN:
1470-160X
Subject:
Ambystoma; Anaxyrus boreas; Pseudacris; Rana; climate; climate change; ectothermy; forests; habitats; land management; landscapes; national parks; path analysis; rain; shrubs; snowpack; soil water; vegetation cover
Abstract:
... Amphibians are vital elements of ecosystems, serving as predator and prey. Their biphasic nature makes them dependent on aquatic and terrestrial habitats; as wet-skinned ectotherms, they are vulnerable to a range of environmental threats, including climate change. Yellowstone National Park (YNP) is becoming warmer and drier, and some wetlands important to amphibians have diminished. Continued clim ...
DOI:
10.1016/j.ecolind.2022.108575

5. Multiple-Predator Effects and Functional Redundancy of Pond Predators

Author:
Kenzi M. Stemp; Thomas L. Anderson; Jon M. Davenport
Source:
Journal of herpetology 2022 v.56 no.1 pp. 18-26
ISSN:
1937-2418
Subject:
Ambystoma; Anaxyrus americanus; Lithobates sylvaticus; Pseudacris crucifer; Rana; herpetology; indigenous species; phenology; predation; prey species; risk; salamanders and newts; tadpoles
Abstract:
... Functional redundancy occurs when different predator species have similar effects on the diversity, abundance, and composition of a prey community. When multiple predators coexist, their interactions can alter prey survival and ultimately diversity through emergent multiple-predator effects (MPEs). MPEs can be exacerbated by differences in predator behavior; however, little is known about the magn ...
DOI:
10.1670/20-080

6. Pond water is the principal source of algae that form a symbiosis with embryos of the spotted salamander Ambystoma maculatum: an experimental test

Author:
Cory D. Bishop
Source:
Symbiosis 2022 v.87 no.2 pp. 107-120
ISSN:
0334-5114
Subject:
Ambystoma; DNA; Oophila; algae; autoclaving; eggs; females; genes; oviposition; provenance; salamanders and newts; symbionts; symbiosis
Abstract:
... The unicellular green alga Oophila amblystomatis forms a symbiosis with embryos of the spotted salamander Ambystoma maculatum. The discovery of intracellular invasion of some host cells by the symbiont has raised questions about benefits for the symbiont or the host, including the possibility of vertical symbiont transmission. To determine the provenance of algal cells that reproduce inside indivi ...
DOI:
10.1007/s13199-022-00857-w

7. Transformation of the symbiotic alga Oophila amblystomatis: a new tool for animal-algae symbiosis studies

Author:
Baptiste Genot; John A. Burns
Source:
Symbiosis 2022 v.87 no.2 pp. 143-151
ISSN:
0334-5114
Subject:
Ambystoma; DNA; Oophila; algae; antibiotic resistance; fluorescence; gene expression; genetic engineering; genomics; models; reverse genetics; salamanders and newts; symbiosis
Abstract:
... The ability to conduct reverse genetic studies in symbiotic systems is enabled by transgene expression and transformation of at least one partner. The symbiotic relationship between the yellow spotted salamander, Ambystoma maculatum, and the green alga, Oophila amblystomatis, is a unique model of vertebrate-algae symbiosis. Despite over 130 years of scientific study, there are still many open ques ...
DOI:
10.1007/s13199-022-00861-0

8. Climate‐associated decline of body condition in a fossorial salamander

Author:
Patrick D. Moldowan; Glenn J. Tattersall; Njal Rollinson
Source:
Global change biology 2022 v.28 no.5 pp. 1725-1739
ISSN:
1354-1013
Subject:
Ambystoma; autumn; body condition; decline; ectothermy; egg masses; ice; lakes; metabolism; microhabitats; phenology; refuge habitats; reproductive performance; salamanders and newts; summer; temperature; vigor
Abstract:
... Temperate ectotherms have responded to recent environmental change, likely due to the direct and indirect effects of temperature on key life cycle events. Yet, a substantial number of ectotherms are fossorial, spending the vast majority of their lives in subterranean microhabitats that are assumed to be buffered against environmental change. Here, we examine whether seasonal climatic conditions in ...
DOI:
10.1111/gcb.15766

9. Comparing Genetic and Field-Based Estimates of Population Connectivity in Marbled Salamanders, Ambystoma opacum

Author:
Karine E. Posbic-Leydet; Kelsey L. Glennon; Jolene T. Fisher; Don R. Church; Sheri A. Church
Source:
Diversity 2022 v.14 no.7 pp. -
ISSN:
1424-2818
Subject:
Ambystoma; habitats; mark-recapture studies; microsatellite repeats; population viability
Abstract:
... Estimating connectivity is key for maintaining population viability for pond-breeding amphibians, especially in areas where habitat alterations occur. Here, we used genetic data (microsatellites) to estimate connectivity of marbled salamanders, Ambystoma opacum, among three focal ponds and compared it to field data (capture-mark-recapture estimates) of movement among the same ponds. In addition, w ...
DOI:
10.3390/d14070524

10. Demographic effects of phenological variation in natural populations of two pond-breeding salamanders

Author:
Thomas L. Anderson; Julia E. Earl; Daniel J. Hocking; Michael S. Osbourn; Tracy A. G. Rittenhouse; Jarrett R. Johnson
Source:
Oecologia 2021 v.196 no.4 pp. 1073-1083
ISSN:
0029-8549
Subject:
Ambystoma; climate change; juveniles; larvae; life history; phenology; statistical analysis
Abstract:
... Phenology is a key driver of population and community dynamics. Phenological metrics (e.g., first date that an event occurred) often simplify information from the full phenological distribution, which may undermine efforts to determine the importance of life history events. Data regarding full phenological distributions are especially needed as many species are shifting phenology with climatic cha ...
DOI:
10.1007/s00442-021-05000-y

11. Development and validation of four environmental DNA assays for species of conservation concern in the South-Central United States

Author:
Cameron D. Siler; Elyse S. Freitas; Tamaki Yuri; Lara Souza; Jessa L. Watters
Source:
Conservation genetics resources 2021 v.13 no.1 pp. 35-40
ISSN:
1877-7252
Subject:
Ambystoma; Deirochelys reticularia; Rana; conservation genetics; crayfish; cytochrome b; cytochrome-c oxidase; environmental DNA; frogs; genes; mitochondria; nontarget organisms; nucleotide sequences; rapid methods; reptiles; salamanders and newts; Oklahoma
Abstract:
... We describe the development and testing of qPCR assays to detect four species of amphibians and reptiles of conservation concern in the South Central United States through environmental DNA (eDNA) samples. The target species include the Ringed Salamander (Ambystoma annulatum), Three-toed Amphiuma (Amphiuma tridactylum), Crawfish Frog (Rana areolata), and Chicken Turtle (Deirochelys reticularia). A ...
DOI:
10.1007/s12686-020-01167-3

12. Direct effects influence larval salamander size and density more than indirect effects

Author:
Thomas L. Anderson; Brittany H. Ousterhout; Freya E. Rowland; Dana L. Drake; Jacob J. Burkhart; William E. Peterman
Source:
Oecologia 2021 v.195 no.1 pp. 173-186
ISSN:
0029-8549
Subject:
Ambystoma; body size; equations; food webs; habitats; larvae; observational studies; predation; salamanders and newts; Missouri
Abstract:
... Direct and indirect effects both influence population and community dynamics. The relative strengths of these pathways are often compared using experimental approaches, but their evaluation in situ has been less frequent. We examined how individual and aggregate impacts of direct and indirect effects of species densities, proxies for competition and predation pressure, and habitat variables influe ...
DOI:
10.1007/s00442-020-04820-8

13. Habitat, water quality or geomorphological degradation in the streams: Which is most important for conserving an endemic amphibian of Central Mexico?

Author:
Miguel Aurelio Piñon-Flores; Ireri Suazo-Ortuño; Juan Pablo Ramírez-Herrejón; Rodrigo Moncayo-Estrada; Ek del-Val
Source:
Journal for nature conservation 2021 v.64 pp. 126063
ISSN:
1617-1381
Subject:
Ambystoma; body condition; cattle; deforestation; dissolved oxygen; factor analysis; geomorphology; habitat destruction; habitats; models; natural resources conservation; particle size; pollution; regression analysis; riparian areas; riparian vegetation; rivers; salamanders and newts; stream channels; turbidity; water quality; Mexico
Abstract:
... Amphibians are one of the most vulnerable vertebrate groups globally as a consequence of pollution and habitat degradation. To explore the environmental and anthropogenic variables that are currently influencing amphibian distribution in central Mexico, we used the Mexican endemic Mountain salamander (Ambystoma ordinarium) as a model. In particular, we evaluated which physicochemical water quality ...
DOI:
10.1016/j.jnc.2021.126063

14. Identifying factors linked with persistence of reintroduced populations: Lessons learned from 25 years of amphibian translocations

Author:
Blake R. Hossack; Paige E. Howell; Audrey K. Owens; Cassidi Cobos; Caren S. Goldberg; David Hall; Shaula Hedwall; Susan K. MacVean; Magnus MacCaffery; A. Hunter McCall; Cody D. Mosley; Emily B. Oja; James C. Rorabaugh; Brent H. Sigafus; Michael J. Sredl
Source:
Global ecology and conservation 2022 v.35 pp. e02078
ISSN:
2351-9894
Subject:
Ambystoma; Rana; data collection; dry season; eggs; environmental DNA; extinction; frogs; human resources; landscapes; lentic systems; lotic systems; models; probability; streams; summer; surveys; threatened species; Arizona; New Mexico
Abstract:
... Conservation translocations are increasingly used to help recover imperiled species. However, success of establishing populations remains low, especially for amphibians. Identifying factors associated with translocation success can help increase efficiency and efficacy of recovery efforts. Since the 1990s, several captive and semi-captive facilities have produced Chiricahua Leopard Frogs (Rana chi ...
DOI:
10.1016/j.gecco.2022.e02078

15. The Intersection between Locomotor Performance, Prey Consumption Rate, and Morphology Under Perceived Competition and Predation in Ambystoma maculatum Larvae

Author:
Francisco Javier Zamora-Camacho; Ryan Calsbeek
Source:
South american journal of herpetology 2022 v.24 no.1 pp. 58-66
ISSN:
1808-9798
Subject:
Ambystoma; amphibians; body size; herpetology; mesopredators; predation
Abstract:
... Whereas prey tend to reduce conspicuousness, predators remain active to locate their prey. In particular, mesopredators (i.e., predators situated in the middle of two trophic levels) may be subjected to opposing pressures. Locomotor performance influences predator–prey interactions, and together with behavior can be constrained by morphology. In this study, we test how locomotor performance and fo ...
DOI:
10.2994/SAJH-D-20-00062.1

16. Investigating Acute and Subchronic Effects of Neonicotinoids on Northwestern Salamander Larvae

Author:
Blake E. G. Danis; Vicki L. Marlatt
Source:
Archives of environmental contamination and toxicology 2021 v.80 no.4 pp. 691-707
ISSN:
0090-4341
Subject:
Ambystoma; aquatic organisms; body length; body weight; clothianidin; gene expression; imidacloprid; larvae; pollutants; pollution; salamanders and newts; thiamethoxam; toxicology
Abstract:
... This research investigated the adverse effects of neonicotinoids on the Northwestern salamander (Ambystoma gracile; NWS) after acute and subchronic exposures during early aquatic life stages via whole organism (i.e., growth, development) and molecular (i.e., gene expression) level endpoints. In a 96-h exposure, NWS larvae were exposed to four imidacloprid concentrations (250, 750, 2250, 6750 µg/L) ...
DOI:
10.1007/s00244-021-00840-4

17. Juvenile Salamanders Do Not Exhibit Compensatory Growth Post-metamorphosis in an Experimental Setting

Author:
Freya E. Rowland; Jacob J. Burkhart
Source:
Ichthyology & herpetology 2022 v.110 no.2 pp. 292-298
ISSN:
2766-1512
Subject:
Ambystoma; compensatory growth; habitats; herpetology; ichthyology; juveniles; larvae; metamorphosis; salamanders and newts
Abstract:
... Compensatory growth, where an organism can grow faster during recovery from low resource periods, is a mechanism used by a wide variety of taxa to mitigate previous deficiencies. Here we present experimental data to test whether pond-breeding salamander juveniles raised in different quality larval habitats can catch up to larger cohort members after metamorphosis. We reared larval Spotted Salamand ...
DOI:
10.1643/h2021067

18. Microgeographic evolution of metabolic physiology in a salamander metapopulation

Author:
Sean T. Giery; Dana L. Drake; Mark C. Urban
Source:
Ecology 2021 v.102 no.11 pp. e03488
ISSN:
0012-9658
Subject:
Ambystoma; body weight; evolution; metabolism; population density; salamanders and newts; Connecticut
Abstract:
... The Metabolic Theory of Ecology explains ecological variation spanning taxonomic organization, space, and time based on universal physiological relationships. The theory depends on two core parameters: the normalization constant, a mass‐independent measure of metabolic rate expected to be invariant among similar species, and the scaling coefficient, a measure of metabolic change with body mass com ...
DOI:
10.1002/ecy.3488

19. Occupancy models including local and landscape variables are useful to assess the distribution of a salamander species at risk

Author:
Marco Tulio Oropeza‐Sánchez; Ireri Suazo‐Ortuño; Julieta Benítez‐Malvido; Roberto Munguía‐Steyer
Source:
Population ecology 2021 v.63 no.2 pp. 165-176
ISSN:
1438-3896
Subject:
Ambystoma; dissolved oxygen; dry season; electrical conductivity; extinction; habitats; landscapes; occupations; population ecology; risk; salamanders and newts; seasonal variation; streams; temperature; threatened species; wet season
Abstract:
... Numerous amphibian species are at risk of extinction worldwide. Therefore, reliable estimations of the distribution and abundance of these species are necessary for their conservation. Generally, amphibians are difficult to detect in the wild, which compromises the accuracy of long‐term population monitoring and management. Occupancy models are useful tools to assess how environmental variables, a ...
DOI:
10.1002/1438-390X.12078

20. Phenological Differences in Wood Frog and Spotted Salamander Egg-Mass Onset and Peak Accumulation

Author:
James S. Andrews; Erin Talmage
Source:
Northeastern naturalist 2021 v.28 no.4 pp. 456-461
ISSN:
1092-6194
Subject:
Ambystoma; Lithobates sylvaticus; egg masses; phenology; salamanders and newts; wood; Vermont
Abstract:
... We used egg-mass counts to monitor populations of Lithobates sylvaticus (Wood Frog) and Ambystoma maculatum (Spotted Salamander) at 4 ponds located in central Vermont. We monitored numbers of egg-masses for 15 springs over the course of 20 years (2000–2020). Each year, the number of Wood Frog egg-masses at our breeding sites increased rapidly, over a period of close to 2 weeks. Spotted Salamanders ...
DOI:
10.1656/045.028.0404

21. Skin defenses of North American salamanders against a deadly salamander fungus

Author:
K. E. Pereira; S. K. Woodley
Source:
Animal conservation 2021 v.24 no.4 pp. 552-567
ISSN:
1367-9430
Subject:
Ambystoma; Cryptobranchus alleganiensis; Desmognathus; Plethodon; biodiversity; fungi; pathogens; peptides; salamanders and newts; skin diseases
Abstract:
... The recently emerged fungal pathogen, Batrachochytrium salamandrivorans (Bsal) causes the lethal skin disease chytridiomycosis in susceptible salamander species and is predicted to emerge within the Americas with devastating consequences. Host responses to Bsal are variable but the factors underlying these differences are unknown. To investigate the role of skin‐associated immune defenses against ...
DOI:
10.1111/acv.12666

22. The contributions of individual traits to survival among terrestrial juvenile pond‐breeding salamanders

Author:
Arianne F. Messerman; Manuel Leal
Source:
Functional ecology 2022 v.36 no.3 pp. 516-525
ISSN:
0269-8463
Subject:
Ambystoma; body weight; juveniles; mark-recapture studies; metabolism; population dynamics; surface area
Abstract:
... Individual survival is influenced by interactions between local environmental conditions and an organism's morphological, behavioural and physiological traits. Studies examining the effects of individual phenotypes on survival under variable conditions are relatively rare among early transitional life stages, although the vital rates of these life stages can importantly influence population dynami ...
DOI:
10.1111/1365-2435.13973

23. The effects of intraguild interactions (or lack of) on prey diversity in experimental ponds food webs

Author:
K.M. Stemp; T.L. Anderson; J.M. Davenport
Source:
Food webs 2021 v.29 pp. e00207
ISSN:
2352-2496
Subject:
Ambystoma; Anaxyrus americanus; Boyeria vinosa; community structure; experimental design; food webs; invertebrates; predation; prey species; salamanders and newts; species diversity
Abstract:
... The interactions between top- and intermediate-level predators can have significant effects on community structure of food webs. The direct and indirect effects of top predators not only affect prey communities both negatively (e.g. predation) and positively (e.g. thinning effects), but can also impact intermediate-level predators (via intraguild predation [IGP]). These IGP interactions can have e ...
DOI:
10.1016/j.fooweb.2021.e00207

24. Amphibian population responses to mitigation: Relative importance of wetland age and design

Author:
Emily B. Oja; Leah K. Swartz; Erin Muths; Blake R. Hossack
Source:
Ecological indicators 2021 v.131 pp. 108123
ISSN:
1470-160X
Subject:
Ambystoma; Anaxyrus boreas; Pseudacris; Rana; ecosystems; frogs; habitats; road construction; uncertainty; vegetation cover; wetlands; Wyoming
Abstract:
... Wetland creation is a common practice to mitigate for the loss of natural wetlands. However, there is still uncertainty about how effectively created wetlands replace habitat provided by natural wetlands. This uncertainty is due in part because post-construction monitoring of biological communities, and vertebrates especially, is rare and typically short-term (<5 years). We estimated occupancy of ...
DOI:
10.1016/j.ecolind.2021.108123

25. Asymmetric density‐dependent competition and predation between larval salamanders

Author:
Thomas L. Anderson; Jacob J. Burkhart; Jon M. Davenport
Source:
Freshwater biology 2021 v.66 no.7 pp. 1356-1365
ISSN:
0046-5070
Subject:
Ambystoma; body size; freshwater; interspecific competition; larvae; limnology; metamorphosis; predation
Abstract:
... Body size differences among consumers often lead to asymmetric interactions, with larger individuals typically being stronger competitors and/or predators on small individuals. These types of interaction are particularly exemplified in freshwater pond communities, where substantial size variation exists both within and among species of top consumers. We investigated whether density dependence can ...
DOI:
10.1111/fwb.13721

26. Breeding Effort and Hydroperiod Indicate Habitat Quality of Small, Isolated Wetlands for Amphibians Under Climate Extremes

Author:
Leah D. Nagel; Stacy A. McNulty; Matthew D. Schlesinger; James P. Gibbs
Source:
Wetlands 2021 v.41 no.2 pp. 22
ISSN:
0277-5212
Subject:
Ambystoma; Lithobates sylvaticus; climatic factors; drought; eggs; habitats; juveniles; larvae; salamanders and newts; spring; summer; New York
Abstract:
... The distribution and function of small, temporarily ponded wetlands such as vernal pools are driven by climate variation, especially precipitation. These wetland ecosystems provide important habitat for amphibians, whose breeding effort (egg deposition) is often used to characterize pool habitat quality. However, whether breeding effort consistently predicts larval survival, juvenile production, a ...
DOI:
10.1007/s13157-021-01404-x

27. Created wetlands managed for hydroperiod provide habitat for amphibians in Western Kentucky, USA

Author:
Andrea N. Drayer; Jacquelyn C. Guzy; Rachel Caro; Steven J. Price
Source:
Wetlands ecology and management 2020 v.28 no.3 pp. 543-558
ISSN:
0923-4861
Subject:
Ambystoma; Lithobates; administrative management; canopy; crayfish; fauna; frogs; habitats; hydrology; salamanders and newts; species richness; vegetation; water quality; wetlands; Kentucky
Abstract:
... Loss of wetlands worldwide has necessitated the creation of wetlands to counteract declines of fauna associated with these habitats. Ephemeral wetlands have been disproportionally lost and hydrology of ephemeral wetlands is challenging to restore. Created wetlands with water control structures may be a viable option. In Western Kentucky, we surveyed three ephemeral wetland types [managed open cano ...
DOI:
10.1007/s11273-020-09730-3

28. Distribution and Population Structure of Ambystoma altamirani from the Llano de Lobos, State of México, Mexico

Author:
Zeltzin A. Villanueva Camacho; Geoffrey R. Smith; Raymundo Montoya Ayala; Julio A. Lemos-Espinal
Source:
Western North American naturalist 2020 v.80 no.2 pp. 228-235
ISSN:
1527-0904
Subject:
Ambystoma; anthropogenic activities; eggs; population structure; salamanders and newts; sex ratio; solar radiation; urbanization; Mexico
Abstract:
... Ambystoma altamirani is an endangered salamander found in high mountain streams in the vicinity of México City, and its populations might be threatened by urban growth. Here we report our research on a previously unstudied population of A. altamirani at the Llano de Lobos in the Sierra de las Cruces. The study ran from September 2018 to September 2019. The number of observed individuals was relati ...
DOI:
10.3398/064.080.0210

29. Do Existing Constructed Ponds on Pelee Island, Ontario Match the Habitat Requirements of Endangered Ambystoma Larvae?

Author:
Meghan Ward; Thomas J. Hossie
Source:
Wetlands 2020 v.40 no.6 pp. 2097-2108
ISSN:
0277-5212
Subject:
Ambystoma; burrows; canopy; crayfish; habitats; larval development; plant litter; salamanders and newts; vegetation; wetlands; Ontario
Abstract:
... Global loss of wetlands has significantly reduced the habitat available for amphibians. Various organizations now regularly construct wetlands to provide areas for amphibian reproduction and larval development. To support wetland taxa, including federally-endangered salamanders, numerous ponds have been constructed in Southern Ontario. We examine natural and constructed ponds to address three ques ...
DOI:
10.1007/s13157-020-01364-8

30. Effects of Agricultural Pollutants on Stress Hormones and Viral Infection in Larval Salamanders

Author:
Drew R. Davis; Katie J. Ferguson; Matthew S. Schwarz; Jacob L. Kerby
Source:
Wetlands 2020 v.40 no.3 pp. 577-586
ISSN:
0277-5212
Subject:
Ambystoma; Ranavirus; biomarkers; corticosterone; crop production; habitat destruction; immunosuppression; larvae; pollution; rowcrops; South Dakota
Abstract:
... Declines in amphibians are a global problem, influenced by complex local factors. While many factors contribute to these declines, much attention has been focused on the roles of contaminants and pathogens. Throughout eastern South Dakota, row-crop farming has contributed to habitat degradation for many amphibians, often through increases in environmental contaminants. For two years we visited fou ...
DOI:
10.1007/s13157-019-01207-1

31. Estimating critical habitat based on year-round movements of the endangered Jefferson Salamander (Ambystoma jeffersonianum) and their unisexual dependents

Author:
S.G. Van Drunen; J.E. Linton; J.P. Bogart; J. McCarter; H. Fotherby; A. Sandilands; D.R. Norris
Source:
Canadian journal of zoology 2020 v.98 no.2 pp. 117-126
ISSN:
1480-3283
Subject:
Ambystoma; breeding; endangered species; habitat conservation; habitat preferences; habitats; overwintering; ponds; radio telemetry; risk; salamanders and newts; spring; summer; Canada
Abstract:
... Habitat protection is a key component of endangered species conservation, but critical habitat designations are often based on limited data or habitat use during only a portion of a species’ life cycle. Protected habitat around breeding pools for the endangered Jefferson Salamander (Ambystoma jeffersonianum (Green, 1827)) and their unisexual dependents (Ambystoma laterale – (2) jeffersonianum) is ...
DOI:
10.1139/cjz-2019-0228

32. Evaluation of created wetlands as amphibian habitat on a reforested surface mine

Author:
Michaela Lambert; Andrea N. Drayer; Wendy Leuenberger; Steven J. Price; Christopher Barton
Source:
Ecological engineering 2021 v.171 pp. 106386
ISSN:
0925-8574
Subject:
Ambystoma; Notophthalmus viridescens; Rana clamitans; canopy; ecosystems; forests; frogs; habitat destruction; habitats; landscapes; salamanders and newts; site preparation; streams; surface area; vegetation cover; water quality; wetlands; Monongahela National Forest; West Virginia
Abstract:
... Wetlands created within disturbed landscapes may be an important key to restoring lost ecosystem functions. Reclaimed mines provide an opportunity to create wetlands and restore natural features within a disturbed landscape while benefiting amphibians, a taxa affected by habitat loss. A large-scale restoration effort within the Monongahela National Forest, West Virginia, USA has resulted in the cr ...
DOI:
10.1016/j.ecoleng.2021.106386

33. Functional Responses of Larval Marbled Salamanders (Ambystoma opacum) and Adult Lesser Sirens (Siren intermedia) on Anuran Tadpole Prey

Author:
Thomas L. Anderson; Kenzi M. Stemp; Jon M. Davenport
Source:
Copeia 2020 v.108 no.2 pp. 341-346
ISSN:
0045-8511
Subject:
Ambystoma; Anura; adults; body size; mortality; predation; tadpoles
Abstract:
... Predation can have strong effects on the structure of pond-breeding amphibian communities. Many factors can influence the outcome of predator–prey interactions, including differences in densities, identities, and body sizes of both predator and prey. These different mediating factors can impart synergistic impacts on predation rates, though distinguishing such interactions among multiple factors a ...
DOI:
10.1643/CE-19-212

34. Inhibition of Batrachochytrium dendrobatidis Infection by Skin Bacterial Communities in Wild Amphibian Populations

Author:
Bisbrian Nava-González; Ireri Suazo-Ortuño; Perla Bibian López; Yurixhi Maldonado-López; Leonel Lopez-Toledo; Luciana Raggi; Gabriela Parra-Olea; Javier Alvarado-Díaz; Bruno Gómez-Gil
Source:
Microbial ecology 2021 v.82 no.3 pp. 666-676
ISSN:
0095-3628
Subject:
Ambystoma; Batrachochytrium dendrobatidis; Lithobates; Pseudomonas; Stenotrophomonas; altitude; bacterial communities; enzootic diseases; frogs; fungi; hosts; pathogens; salamanders and newts; taxonomy; Mexico
Abstract:
... Skin-associated bacteria are known to inhibit infection by the fungal pathogen Batrachochytrium dendrobatidis (Bd) in amphibians. It has also been postulated that skin-associated bacterial community is related to Bd infection intensity. However, our understanding of host microbial dynamics and their importance in regulating Bd intensity is limited. We analyzed Bd infection and skin-associated bact ...
DOI:
10.1007/s00248-021-01706-x

35. Macrogeographic variation of a pond predator's top‐down effects in a common garden environment

Author:
Kenzi M. Stemp; Thomas L. Anderson; Jon M. Davenport
Source:
Population ecology 2021 v.63 no.1 pp. 5-13
ISSN:
1438-3896
Subject:
Ambystoma; biodiversity; geographical distribution; geographical variation; keystone species; life history; population ecology; predation; prey species; salamanders and newts; spring; Mississippi; North Carolina; Ohio
Abstract:
... Geographic variation in species behavior and life history has been well documented in biology. Species with wide geographic distributions (i.e., across a continent) but small home ranges (i.e., <1 km²) likely experience wide variability in abiotic environments across the entirety of their range, possibly exhibiting strong local adaptation. Understanding variation across a large geographic scale is ...
DOI:
10.1002/1438-390X.12071

36. Metapopulation genetics of endangered reticulated flatwoods salamanders (Ambystoma bishopi) in a dynamic and fragmented landscape

Author:
Alexander Wendt; Carola A. Haas; Thomas Gorman; James H. Roberts
Source:
Conservation genetics 2021 v.22 no.4 pp. 551-567
ISSN:
1566-0621
Subject:
Ambystoma; conservation genetics; ecosystems; endangered species; fire suppression; genetic variation; habitat destruction; habitat fragmentation; habitats; juveniles; land use change; microsatellite repeats; population dynamics; population structure; salamanders and newts; savannas; Southeastern United States
Abstract:
... The reticulated flatwoods salamander (Ambystoma bishopi), an endangered species endemic to the longleaf-pine savanna ecosystem of the southeastern U.S., persists in a small number of remnant habitat patches. Breeding ponds and associated populations are threatened by habitat loss, degradation, and fragmentation stemming from fire suppression and land conversion. Understanding influences on populat ...
DOI:
10.1007/s10592-021-01360-3

37. Mixed support for gene flow as a constraint to local adaptation and contributor to the limited geographic range of an endemic salamander

Author:
Steven J. Micheletti; Andrew Storfer
Source:
Molecular ecology 2020 v.29 no.21 pp. 4091-4101
ISSN:
0962-1083
Subject:
Ambystoma; edge effects; gene flow; geographical distribution; mortality; salamanders and newts
Abstract:
... Understanding mechanisms that underlie species range limits is at the core of evolutionary ecology. Asymmetric gene flow between larger core populations and smaller edge populations can swamp local adaptation at the range edge and inhibit further range expansion. However, empirical tests of this theory are exceedingly rare. We tested the hypothesis that asymmetric gene flow can constrain local ada ...
DOI:
10.1111/mec.15627

38. Modelling the contribution of ephemeral wetlands to landscape connectivity

Author:
Corrie Allen; Rodolphe Gonzales; Lael Parrott
Source:
Ecological modelling 2020 v.419 pp. 108944
ISSN:
0304-3800
Subject:
Ambystoma; amphibians; breeding sites; case studies; climate; climate change; endangered species; habitat connectivity; habitat destruction; highlands; land use; landscapes; models; wetland conservation; wetlands; British Columbia
Abstract:
... Habitat loss and fragmentation continue to drive declines of amphibian populations. Maintaining connectivity between aquatic and terrestrial habitats and across wetlands is critical to amphibian conservation, particularly in regions where climate change may exacerbate habitat loss. Our objective was to study the impact of climate- and human-driven losses in ephemeral wetlands on functional connect ...
DOI:
10.1016/j.ecolmodel.2020.108944

39. Multi-organ transcriptomic landscape of Ambystoma velasci metamorphosis

Author:
Janet Palacios-Martinez; Juan Caballero-Perez; Annie Espinal-Centeno; Gilberto Marquez-Chavoya; Hilda Lomeli; Enrique Salas-Vidal; Denhi Schnabel; Jesus Chimal-Monroy; Alfredo Cruz-Ramirez
Source:
Developmental biology 2020 v.466 no.1-2 pp. 22-35
ISSN:
0012-1606
Subject:
Ambystoma; angiogenesis; apoptosis; cardiomyocytes; extracellular matrix; gene expression regulation; keratin; lungs; metamorphosis; salamanders and newts; surfactant proteins; transcription (genetics); transcriptome
Abstract:
... Metamorphosis is a postembryonic developmental process that involves morphophysiological and behavioral changes, allowing organisms to adapt into a novel environment. In some amphibians, aquatic organisms undergo metamorphosis to adapt in a terrestrial environment. In this process, these organisms experience major changes in their circulatory, respiratory, digestive, excretory and reproductive sys ...
DOI:
10.1016/j.ydbio.2020.08.002

40. Multiscale resistant kernel surfaces derived from inferred gene flow: An application with vernal pool breeding salamanders

Author:
Kristopher J. Winiarski; William E. Peterman; Andrew R. Whiteley; Kevin McGarigal
Source:
Molecular ecology resources 2020 v.20 no.1 pp. 97-113
ISSN:
1755-098X
Subject:
Ambystoma; analytical methods; area; breeding; empirical research; forest habitats; forest land; gene flow; highlands; land cover; landscape genetics; landscapes; models; salamanders and newts; seeds; spatial data; surfaces; topography; traffic; vegetation index; vernal pools
Abstract:
... The importance of assessing spatial data at multiple scales when modelling species–environment relationships has been highlighted by several empirical studies. However, no landscape genetics studies have optimized landscape resistance surfaces by evaluating relevant spatial predictors at multiple spatial scales. Here, we model multiscale/layer landscape resistance surfaces to estimate resistance t ...
DOI:
10.1111/1755-0998.13089

41. Oophila is monophyletic within a three-taxon eukaryotic microbiome in egg masses of the salamander Ambystoma maculatum

Author:
E. Jurga; L. Graham; C.D. Bishop
Source:
Symbiosis 2020 v.81 no.2 pp. 187-199
ISSN:
0334-5114
Subject:
Ambystoma; Oophila; algae; competitive exclusion; egg masses; eggs; eukaryotic cells; habitats; microbiome; monophyly; protists; salamanders and newts; sequence diversity
Abstract:
... Tests of hypotheses of vertical transmission and competitive exclusion for particular resource-exchange mutualisms require assessments of the number and identity of partners. Unicellular green algae form a symbiosis with embryos of the northeastern yellow spotted salamander Ambystoma maculatum. The extent to which the composition of egg mass-associated taxa depends on temporal or spatial factors i ...
DOI:
10.1007/s13199-020-00693-w

42. Relative Toxicity and Sublethal Effects of NaCl and Energy-Related Saline Wastewaters on Prairie Amphibians

Author:
Brian J. Tornabene; Creagh W. Breuner; Blake R. Hossack
Source:
Aquatic toxicology 2020 v.228 pp. 105626
ISSN:
0166-445X
Subject:
Ambystoma; Lithobates pipiens; Pseudacris; acute toxicity; energy; freshwater; frogs; larvae; salamanders and newts; salinity; sodium chloride; toxicology; wastewater
Abstract:
... Increasing salinity in freshwater environments is a growing problem due both to the negative influences of salts on ecosystems and their accumulation and persistence in environments. Two major sources of increased salinity from sodium chloride salts (NaCl) are saline wastewaters co-produced during energy production (herein, wastewaters) and road salts. Effects of road salts have received more atte ...
DOI:
10.1016/j.aquatox.2020.105626

43. Batrachochytrium salamandrivorans elicits acute stress response in spotted salamanders but not infection or mortality

Author:
K. Barnhart; M. C. Bletz; B. LaBumbard; A. Tokash‐Peters; C. R. Gabor; D. C. Woodhams
Source:
Animal conservation 2020 v.23 no.5 pp. 533-546
ISSN:
1367-9430
Subject:
Ambystoma; Batrachochytrium; biodiversity; corticosterone; developmental stages; emerging diseases; environmental factors; immune response; mortality; pathogenicity; pathogens; risk; risk assessment; salamanders and newts; stress response; temperature; thyroid hormones; North America; South America
Abstract:
... The emerging fungal pathogen Batrachochytrium salamandrivorans (Bsal) is a major threat to amphibian species worldwide with potential to infect many species if it invades salamander biodiversity hotspots in the Americas. Bsal can cause the disease chytridiomycosis, and it is important to assess the risk of Bsal‐induced chytridiomycosis to species in North America. We evaluated the susceptibility t ...
DOI:
10.1111/acv.12565

44. Characterization of Dermotheca sp. Infection in a midwestern state-endangered salamander (Ambystoma platineum) and a co-occurring common species (Ambystoma texanum)

Author:
Laura Adamovicz; Daniel B. Woodburn; Stephany Virrueta Herrera; Kelsey Low; Christopher A. Phillips; Andrew R. Kuhns; John A. Crawford; Matthew C. Allender
Source:
Parasitology 2020 v.147 no.3 pp. 360-370
ISSN:
1469-8161
Subject:
Ambystoma; Dermocystida; animal diseases; biopsy; epidemiology; histology; morbidity; mortality; necropsy; nucleotide sequences; parasites; pathogens; phylogeny; ribosomal DNA; ribosomal RNA; salamanders and newts; sporangia; wetlands; Illinois
Abstract:
... Ichthyosporean parasites (order Dermocystida) can cause morbidity and mortality in amphibians, but their ecology and epidemiology remain understudied. We investigated the prevalence, gross and histologic appearance, and molecular phylogeny of a novel dermocystid in the state-endangered silvery salamander (Ambystoma platineum) and the co-occurring, non-threatened small-mouthed salamander (Ambystoma ...
DOI:
10.1017/S0031182019001677

45. Discerning the Environmental Drivers of Annual Migrations in an Endangered Amphibian

Author:
George C. Brooks; Jennifer A. Smith; Thomas A. Gorman; Carola A. Haas
Source:
Copeia 2019 v.107 no.2 pp. 270-276
ISSN:
0045-8511
Subject:
Ambystoma; breeding; breeding sites; climate change; endangered species; environmental factors; models; phenology; prediction; rain; salamanders and newts; temperature; wetlands; Florida
Abstract:
... The prevalence of studies that discern the drivers of animal migrations is increasing exponentially, in line with raised concerns over climate-driven shifts in phenological patterns. Amphibians that breed in ephemeral wetlands are particularly vulnerable owing to the stochastic nature of their breeding habitat and high survival and reproductive costs associated with untimely migrations. Knowledge ...
DOI:
10.1643/CH-18-068

46. Egg mass polymorphism in Ambystoma maculatum is not associated with larval performance or survival, or with cell density of the algal symbiont Oophila amblystomatis

Author:
Mischa D’Errico; Caroline Kennedy; Rebecca E. Hale
Source:
Evolutionary ecology 2020 v.34 no.6 pp. 981-997
ISSN:
0269-7653
Subject:
Ambystoma; Oophila; algae; color; egg masses; eggs; embryogenesis; frequency dependent selection; heterozygosity; larvae; phenotype; salamanders and newts; survival rate; symbionts
Abstract:
... Phenotypic polymorphisms are common in nature, but the mechanism through which natural selection maintains them can be difficult to identify. Heterozygote advantage, negative frequency-dependent selection, and variation in selective environment each can explain polymorphisms in some systems. Although first observed nearly 100 years ago, the egg mass color polymorphism in the spotted salamander (Am ...
DOI:
10.1007/s10682-020-10083-9

47. Estimating Survival for Elusive Juvenile Pond‐Breeding Salamanders

Author:
Arianne F. Messerman; Raymond D. Semlitsch; Manuel Leal
Source:
journal of wildlife management 2020 v.84 no.3 pp. 562-575
ISSN:
0022-541X
Subject:
Ambystoma; Bayesian theory; adults; biodiversity; juveniles; mark-recapture studies; phylogeny; population growth; population viability; probability; salamanders and newts; survival rate
Abstract:
... Juvenile vital rates have important effects on population dynamics for many species, but this demographic is often difficult to locate and track. As such, we frequently lack reliable estimates of juvenile survival, which are necessary for accurately assessing population stability and potential management approaches to conserve biodiversity. We estimated survival rates for elusive juveniles of 3 sp ...
DOI:
10.1002/jwmg.21815

48. Estimating occurrence, prevalence, and detection of amphibian pathogens: insights from occupancy models

Author:
Brittany A. Mosher; Adrianne B. Brand; Amber N. M. Wiewel; David A. W. Miller; Matthew J. Gray; Debra L. Miller; Evan H. Campbell Grant
Source:
Journal of wildlife diseases 2019 v.55 no.3 pp. 563-575
ISSN:
0090-3558
Subject:
Ambystoma; Lithobates sylvaticus; Ranavirus; case studies; conservation areas; landscapes; larvae; liver; microbial detection; models; pathogen occurrence; pathogens; planning; salamanders and newts; sampling; tail; Maryland
Abstract:
... Understanding the distribution of pathogens across landscapes and their prevalence within host populations is a common aim of wildlife managers. Despite the need for unbiased estimates of pathogen occurrence and prevalence for planning effective management interventions, many researchers fail to account for imperfect pathogen detection. Instead raw data are often reported, which may lead to ineffe ...
DOI:
10.7589/2018-02-042

49. Evaluating the assumptions of population projection models used for conservation

Author:
Julia E. Earl
Source:
Biological conservation 2019 v.237 pp. 145-154
ISSN:
0006-3207
Subject:
Ambystoma; Anaxyrus boreas; Lithobates sylvaticus; amphibians; anthropogenic stressors; issues and policy; life history; models; natural resources conservation
Abstract:
... Population projection models, such as matrix and integral projection models, are used increasingly to understand potential effects of anthropogenic stressors and inform conservation actions. However, vital rate and life history information needed to create robust population models is often missing or incomplete, making assumptions about parameters and population processes necessary. Understanding ...
DOI:
10.1016/j.biocon.2019.06.034

50. Factors Influencing the Occupancy and Abundance of Streamside Salamander (Ambystoma barbouri) in Kentucky Streams

Author:
Andrea N. Drayer; Jacquelyn C. Guzy; Steven J. Price
Source:
Journal of herpetology 2020 v.54 no.3 pp. 299-305
ISSN:
1937-2418
Subject:
Ambystoma; agricultural land; forests; geographical distribution; herpetology; hydrochemistry; land cover; salamanders and newts; sodium; streams; urban development; watersheds; Kentucky
Abstract:
... For many amphibian species of conservation concern, our understanding of drivers of distribution and abundance are based on data collected at only a few localities. Thus, landscape-scale efforts are needed to better inform management and species conservation. The Streamside Salamander (Ambystoma barbouri) is a global conservation priority because of its restricted geographic distribution and presu ...
DOI:
10.1670/19-015

51. Forest land-use history affects outcomes of habitat augmentation for amphibian conservation

Author:
Harrison B. Goldspiel; Jonathan B. Cohen; Gregory G. McGee; James P. Gibbs
Source:
Global ecology and conservation 2019 v.19 pp. e00686
ISSN:
2351-9894
Subject:
Ambystoma; Lithobates sylvaticus; adults; agricultural land; breeding; climatic factors; conservation programs; deforestation; drought; habitat destruction; highlands; juveniles; land use; landscapes; larvae; microhabitats; plant litter; population dynamics; rain; salamanders and newts; secondary forests; surveys; understory; vernal pools; New York
Abstract:
... Historical land use (especially agriculture) has seldom been considered in the development of conservation programs for amphibians, a group in global decline. Habitat augmentation (e.g., wetland creation) is a growing conservation strategy to stem population declines in regions affected by habitat loss, but such actions are often implemented indiscriminately of landscape contexts that may mediate ...
DOI:
10.1016/j.gecco.2019.e00686

52. Habitat Characteristics in Created Vernal Pools Impact Spotted Salamander Water-Borne Corticosterone Levels

Author:
Alice R. Millikin; Sarah K. Woodley; Drew R. Davis; James T. Anderson
Source:
Wetlands 2019 v.39 no.4 pp. 803-814
ISSN:
0277-5212
Subject:
Ambystoma; body size; breeding sites; corticosterone; habitats; larvae; models; pH; prediction; regression analysis; salamanders and newts; vernal pools; water temperature
Abstract:
... Spotted salamanders (Ambystoma maculatum) require vernal pools for breeding habitat. Limited protection and preservation of vernal pools makes suitable habitat creation important. Differences in corticosterone levels, a hormone associated with growth, development, and stress in amphibians, could indicate population health and habitat quality. Our objective was to determine if habitat characteristi ...
DOI:
10.1007/s13157-019-01130-5

53. Macroinvertebrate Foraging on Larval Ambystoma maculatum across Ontogeny

Author:
Piper Stretz; Thomas L. Anderson; Jacob J. Burkhart
Source:
Copeia 2019 v.107 no.2 pp. 244-249
ISSN:
0045-8511
Subject:
Aeshnidae; Ambystoma; Belostoma; Dytiscidae; Gomphidae; Gyrinidae; Lestes; Libellulidae; Notonecta; Rana clamitans; Ranatra; Trichoptera; analysis of variance; ecological communities; foraging; hatching; larvae; larval development; macroinvertebrates; mortality; ontogeny; predation; predators; salamanders and newts; viability
Abstract:
... Understanding community interactions, such as predator–prey dynamics, is vital for determining species viability. Outside of larger macroinvertebrate predators, such as crayfish and dragonfly larvae, there is a paucity of information regarding the effectiveness of other macroinvertebrate predators in consuming larval amphibians, especially caudate larvae, during aquatic life-stages within pond com ...
DOI:
10.1643/CH-18-140

54. Natural history observations of ambystoma altamirani and dryophytes plicatus at sierra de las cruces, state of méxico, mexico

Author:
Viridiana Villarreal Hernández; Julio A. Lemos-Espinal; Geoffrey R. Smith; Raymundo Montoya-Ayala
Source:
Southwestern naturalist 2020 v.64 no.2 pp. 135-137
ISSN:
0038-4909
Subject:
Ambystoma; Dryophytes; natural history; predation; reproduction; Mexico
Abstract:
... The streams in the mountains surrounding the Valley of Mexico often contain salamanders and anurans. Knowledge of these species is relatively poor, however. We report observations on predation and reproduction in two species from these streams, Ambystoma altamirani and Dryophytes plicatus. ...
DOI:
10.1894/0038-4909-64-2-135

55. Niche determinants in a salamander complex: Does hybridism or reproductive parasitism explain patterns of distribution?

Author:
Peter B. Mills; Thomas J. Hossie; Dennis L. Murray
Source:
Ecosphere 2020 v.11 no.10 pp. e03265
ISSN:
2150-8925
Subject:
Ambystoma; ecological competition; host preferences; hybrids; model validation; models; nuclear genome; parasites; parasitism; phenotype; salamanders and newts; species richness; North America
Abstract:
... Organisms with multiple biotic attributes may also have conflicting niche determinants, and we assessed whether the realized niche reflects single or multiple biotic attributes. A group of all‐female salamanders found in eastern North America (unisexual salamanders; Ambystoma spp.) embody two potentially competing biotic states: hybridism and obligate reproductive parasitism. In theory, hybrids sh ...
DOI:
10.1002/ecs2.3265

56. The Phenology of the Symbiotic Association between Ambystoma maculatum and Unicellular Algae (Oophila) Using Molecular Techniques

Author:
Griffin M. McDaniels; Katelyn T. McDaniels; Chris A. Murdock; James R. Rayburn; George R. Cline
Source:
Journal of herpetology 2020 v.54 no.4 pp. 485-491
ISSN:
1937-2418
Subject:
Ambystoma; DNA; Oophila; algae; egg masses; eggs; herpetology; phenology; probability; quantitative polymerase chain reaction; salamanders and newts; statistical models; symbiosis; Alabama
Abstract:
... The symbiosis between developing Spotted Salamanders (Ambystoma maculatum) and the unicellular alga known as Oophila amblystomatis appears to be mutualistic, with involved parties trading apparent benefits within the salamander egg capsule, but the spatiotemporal ecology of the interaction has yet to be thoroughly explored. Using newly developed primers for quantitative polymerase chain reaction ( ...
DOI:
10.1670/19-143

57. Physiological benefits and latent effects of an algal-salamander symbiosis

Author:
Daniel P. Small; Cory D. Bishop
Source:
Comparative biochemistry and physiology 2020 v.246 pp. 110715
ISSN:
1095-6433
Subject:
Ambystoma; Oophila; algae; body size; compensatory growth; embryo (animal); hypoxia; larvae; metabolism; mutualism; oxygen; oxygen partial pressure; rearing; salamanders and newts; starvation
Abstract:
... Embryos of the salamander Ambystoma maculatum (Shaw) and the uni-cellular green alga Oophila amblystomatis (Lambert ex Wille) have evolved a resource exchange mutualism. Whereas some of the benefits of the symbiosis to embryos are known, the physiological limitations of the relationship to embryos and carry over or latent effects on larvae are not. To determine the impact of the relationship acros ...
DOI:
10.1016/j.cbpa.2020.110715

58. Post-emergence survival and dispersal of juvenile Jefferson salamander (Ambystoma jeffersonianum) and their unisexual dependents

Author:
Stephen G. Van Drunen; Jessica E. Linton; James P. Bogart; D. Ryan Norris
Source:
Amphibia-reptilia v.42 no.1 pp. 29-41
ISSN:
0173-5373
Subject:
Ambystoma; decline; demography; dynamics; habitat preferences; juveniles; mark-recapture studies; population; population viability; risk; salamanders and newts; summer; sympatry
Abstract:
... Understanding population demography and dispersal of species at risk is integral for evaluating population viability, identifying causes of decline, and assessing the effectiveness of recovery actions. In pond-breeding amphibians, juvenile survival and dispersal are key components linked to population and metapopulation stability but little is known about this life stage. We use mark-recapture met ...
DOI:
10.1163/15685381-bja10028

59. Response to conspecific alarm cues by larval and juvenile spotted salamanders (Ambystoma maculatum)

Author:
Katlyn M. Gardner; Robert L. Hunt; Alicia Mathis
Source:
Ethology, ecology & evolution 2020 v.32 no.3 pp. 201-217
ISSN:
1828-7131
Subject:
Ambystoma; adults; conspecificity; early development; evolution; juveniles; laboratory rearing; metamorphosis; mortality; predation; risk; toads
Abstract:
... For many species, the highest predation rates are on the earliest life stages, favoring the early development of predator detection mechanisms. Aquatic larvae of Spotted salamanders, Ambystoma maculatum, suffer very high mortality rates and juveniles are vulnerable to a new suite of terrestrial predators after metamorphosis. In some species, adult salamanders assess predation risk via chemical cue ...
DOI:
10.1080/03949370.2019.1691058

60. Signals of decline of flagship species Ambystoma altamirani Dugès, 1895 (Caudata, Ambystomatidae) in a Mexican natural protected area

Author:
Jesica Gabriela Guerrero de la Paz; Norman Mercado-Silva; Raúl E. Alcalá; Luis Zambrano
Source:
Herpetozoa 2020 v.33 pp. 177-183
ISSN:
2682-955X
Subject:
Ambystoma; Oncorhynchus mykiss; conservation areas; fish; flagship species; habitats; invasive species; national parks; streams; Mexico
Abstract:
... Mexico is home to 18 species of salamanders in the family Ambystomidae. Endangered Ambystoma altamirani Dugès, 1895 is a flagship species for the Lagos de Zempoala National Park (LZNP) in central Mexico, a protected area subject to numerous anthropogenic threats. Ambystoma altamirani populations in the Park have been little studied. In 2016–2017, we surveyed four streams where populations of the s ...
DOI:
10.3897/herpetozoa.33.e56588

61. Species‐specific responses to wetland mitigation among amphibians in the Greater Yellowstone Ecosystem

Author:
Leah K. Swartz; Winsor H. Lowe; Erin L. Muths; Blake R. Hossack
Source:
Restoration ecology 2020 v.28 no.1 pp. 206-214
ISSN:
1061-2971
Subject:
Ambystoma; Anaxyrus boreas; Pseudacris; Rana; aquatic plants; biodiversity; breeding sites; ecosystems; frogs; habitat destruction; habitats; larvae; metamorphosis; models; mortality; road construction; surface area; toads; vegetation; wetlands; wildlife; United States
Abstract:
... Habitat loss and degradation are leading causes of biodiversity declines, therefore assessing the capacity of created mitigation wetlands to replace habitat for wildlife has become a management priority. We used single season occupancy models to compare the occurrence of larvae of four species of pond‐breeding amphibians in wetlands created for mitigation, wetlands impacted by road construction, a ...
DOI:
10.1111/rec.13031

62. Toxicity of the aquatic herbicide, reward®, to the northwestern salamander

Author:
Michael L. Moreton; Vicki L. Marlatt
Source:
Environmental science and pollution research international 2019 v.26 no.30 pp. 31077-31085
ISSN:
0944-1344
Subject:
Ambystoma; active ingredients; adverse effects; bioassays; diquat; fish larvae; lethal concentration 50; pests; salamanders and newts; subchronic exposure; sublethal effects
Abstract:
... Diquat dibromide (DB) is the active ingredient in several herbicide products used around the world for industrial and recreational control of terrestrial and aquatic pest plants. This study aimed to assess the adverse effects of the commercial formulation of the aquatic herbicide, Reward®, on the Pacific Northwest amphibian species, the northwestern salamander (Ambystoma gracile). Larvae were expo ...
DOI:
10.1007/s11356-019-06234-3

63. Unisexual Salamanders in the Genus Ambystoma

Author:
J.P. Bogart
Source:
Herpetologica 2019 v.75 no.4 pp. 259-267
ISSN:
1938-5099
Subject:
Ambystoma; biological speciation; salamanders and newts; unisexuality
Abstract:
... Unisexual salamanders present a novel evolutionary phenomenon that has led to many speculations with respect to their origin and persistence. These salamanders do not comply with basic evolutionary theory with respect to any of the factors that guide speciation. Indeed, none of the various unisexual salamanders can be considered a distinct species. I outline the history of the unisexual Ambystoma ...
DOI:
10.1655/Herpetologica-D-19-00043.1

64. The contribution of road‐based citizen science to the conservation of pond‐breeding amphibians

Author:
Sean C. Sterrett; Rachel A. Katz; William R. Fields; Evan H. Campbell Grant
Source:
Journal of applied ecology 2019 v.56 no.4 pp. 988-995
ISSN:
0021-8901
Subject:
Ambystoma; adults; case studies; conservation programs; extinction; infrastructure; mortality; population growth; population size; roadsides; salamanders and newts; United States
Abstract:
... Roadside amphibian citizen science (CS) programmes bring together volunteers focused on collecting scientific data while working to mitigate population declines by reducing road mortality of pond‐breeding amphibians. Despite the international popularity of these movement‐based, roadside conservation efforts (i.e. “big nights,” “bucket brigades” and “toad patrols”), direct benefits to conservation ...
DOI:
10.1111/1365-2664.13330

65. A family study to examine clonal diversity in unisexual salamanders (genus Ambystoma)

Author:
James P. Bogart
Source:
Genome 2019 v.62 no.8 pp. 549-561
ISSN:
1480-3321
Subject:
Ambystoma; clonal variation; eggs; females; genome; gynogenesis; haploidy; loci; microsatellite repeats; mothers; mutation; natural selection; paternity; progeny; reproductive system; salamanders and newts; spermatozoa; zygote
Abstract:
... Unisexual Ambystoma are the oldest known unisexual vertebrates and comprise a lineage of eastern North American all female salamanders that reproduce by stealing sperm from as many as five normally bisexual congeneric species. The sperm may be used to only stimulate egg development by gynogenesis but can be incorporated in the zygote to elevate the ploidy level or to replace one of the female’s ha ...
DOI:
10.1139/gen-2019-0034

66. Associations between environmental pollutants and larval amphibians in wetlands contaminated by energy-related brines are potentially mediated by feeding traits

Author:
Kelly L. Smalling; Chauncey W. Anderson; R. Ken Honeycutt; Isabelle M. Cozzarelli; Todd Preston; Blake R. Hossack
Source:
Environmental pollution 2019 v.248 pp. 260-268
ISSN:
0269-7491
Subject:
antimony; life history; lead; grazing; selenium; volatile organic compounds; strontium; ingestion; sediments; risk; radionuclides; sodium; synergism; tissues; basins; energy; tadpoles; salamanders and newts; Pseudacris; wastewater; Ambystoma; pollutants; oils; vanadium; ammonium; wetlands; Lithobates pipiens; aquatic organisms; mercury; hydrocarbons; drying; recycling; Prairie Pothole region; North Dakota; Montana
Abstract:
... Energy production in the Williston Basin, located in the Prairie Pothole Region of central North America, has increased rapidly over the last several decades. Advances in recycling and disposal practices of saline wastewaters (brines) co-produced during energy production have reduced ecological risks, but spills still occur often and legacy practices of releasing brines into the environment caused ...
DOI:
10.1016/j.envpol.2019.02.033

67. Bioaccumulation of methylmercury in wood frogs and spotted salamanders in Vermont vernal pools

Author:
Steven D. Faccio; Kate L. Buckman; John D. Lloyd; Amanda N. Curtis; Vivien F. Taylor
Source:
Ecotoxicology 2019 v.28 no.7 pp. 717-731
ISSN:
0963-9292
Subject:
Ambystoma; Lithobates sylvaticus; adults; bioaccumulation; bioavailability; coniferous forests; dissolved organic carbon; dissolved oxygen; eggs; fauna; hydrochemistry; landscapes; larvae; mercury; methylmercury compounds; monitoring; pH; salamanders and newts; terrestrial ecosystems; toxicity; vernal pools; Vermont
Abstract:
... Mercury (Hg) has accumulated in forested landscapes in the Northeastern U.S., and hotspots with enhanced deposition have been identified throughout the region. Due to a variety of favorable landscape characteristics, including relatively high dissolved organic carbon (DOC), fluctuating water levels, and low pH and dissolved oxygen, vernal pools provide ideal conditions for the conversion of Hg to ...
DOI:
10.1007/s10646-019-02068-4
PubMed:
31243636
PubMed Central:
PMC6732234

68. Co-cultures of Oophila amblystomatis between Ambystoma maculatum and Ambystoma gracile hosts show host-symbiont fidelity

Author:
Ryan Kerney; Jasper Leavitt; Elizabeth Hill; Huanjia Zhang; Eunsoo Kim; John Burns
Source:
Symbiosis 2019 v.78 no.1 pp. 73-85
ISSN:
0334-5114
Subject:
Ambystoma; Oophila; algae; ammonia; carbon metabolism; cell walls; coculture; eggs; gene expression; genes; hosts; mutualism; nitrogen metabolism; photosynthesis; salamanders and newts; tissues; transcriptome
Abstract:
... A unique symbiosis occurs between embryos of the spotted salamander (Ambystoma maculatum) and a green alga (Oophila amblystomatis). Unlike most vertebrate host-symbiont relationships, which are ectosymbiotic, A. maculatum exhibits both an ecto- and an endo-symbiosis, where some of the green algal cells living inside egg capsules enter embryonic tissues as well as individual salamander cells. Past ...
DOI:
10.1007/s13199-018-00591-2

69. Combining Data Sources to Understand Drivers of Spotted Salamander (Ambystoma maculatum) Population Abundance

Author:
Courtney L. Davis; Eric W. Teitsworth; David A. W. Miller
Source:
Journal of herpetology 2018 v.52 no.2 pp. 116-126
ISSN:
1937-2418
Subject:
wetlands; Lithobates sylvaticus; sampling; habitat preferences; monitoring; salamanders and newts; egg masses; Ambystoma; breeding; models; surveys; water temperature; ecosystems; females; adults; Pennsylvania
Abstract:
... Robust methods for estimating abundance of wetland-breeding amphibian species, such as mark–recapture, are often resource intensive. This limits our ability to study the processes that influence species abundance. Alternatively, more efficient sampling methods, such as indices based on visual encounter surveys (VES) (e.g., egg masses), may be biased by variability in detection probabilities and sp ...
DOI:
10.1670/17.110

70. Cross-Life Stage Effects of Aquatic Larval Density and Terrestrial Moisture on Growth and Corticosterone in the Spotted Salamander

Author:
Julie F. Charbonnier; Jacquelyn Pearlmutter; James R. Vonesh; Caitlin R. Gabor; Zachery R. Forsburg; Kristine L. Grayson
Source:
Diversity 2018 v.10 no.3 pp. -
ISSN:
1424-2818
Subject:
Ambystoma; aquatic habitat; corticosterone; food intake; juveniles; larvae; salamanders and newts
Abstract:
... For organisms with complex life cycles, conditions experienced during early life stages may constrain later growth and survival. Conversely, compensatory mechanisms may attenuate negative effects from early life stages. We used the spotted salamander, Ambystoma maculatum, to test how aquatic larval density and terrestrial moisture influence juvenile growth, food intake, evaporative water loss and ...
DOI:
10.3390/d10030068

71. The Effect of Salinity on the Survival and Growth of Anderson's Salamander Ambystoma andersoni Larvae

Author:
Alejandra Ahumada‐García; Carlos A. Martínez‐Palacios; C. Cristian Martínez‐Chávez; M. Gisela Ríos‐Durán; Pamela Navarrete‐Ramírez; Lindsay G. Ross
Source:
North American journal of aquaculture 2018 v.80 no.4 pp. 397-403
ISSN:
1522-2055
Subject:
Ambystoma; acute exposure; aquaculture; fungi; larvae; proximate composition; salamanders and newts; salinity
Abstract:
... Eggs and larvae of axolotls are susceptible to fungal infections in culture, producing high mortalities that could be prevented by the use of saline media. Newly hatched larvae of Anderson's salamander Ambystoma andersoni were exposed to seven salinities (0, 5, 10, 15, 20, 25, and 30‰) to observe the effect on survival. Newly hatched larvae did not tolerate more than 10‰ salinity during short‐term ...
DOI:
10.1002/naaq.10050

72. Effects of conditionally expressed phenotypes and environment on amphibian dispersal in nature

Author:
Brittany H. Ousterhout; Raymond D. Semlitsch
Source:
Oikos 2018 v.127 no.8 pp. 1142-1151
ISSN:
0030-1299
Subject:
Ambystoma; body condition; dispersal behavior; field experimentation; habitats; juveniles; larvae; metamorphosis; ontogeny; phenotype; philopatry; population dynamics; salamanders and newts
Abstract:
... Individuals vary greatly in the distance they disperse, and in doing so, strongly affect ecological and evolutionary processes. Dispersal, when viewed as a component of phenotype, can be affected independently or jointly by environment. However, among taxa with complex life cycles that occupy different habitats over ontogeny, the effects of environment on dispersal and the interaction between envi ...
DOI:
10.1111/oik.05276

73. Effects of persistent energy-related brine contamination on amphibian abundance in national wildlife refuge wetlands

Author:
Blake R. Hossack; Kelly L. Smalling; Chauncey W. Anderson; Todd M. Preston; Isabelle M. Cozzarelli; R. Ken Honeycutt
Source:
Biological conservation 2018 v.228 pp. 36-43
ISSN:
0006-3207
Subject:
Ambystoma; Lithobates; Pseudacris; Rana; basins; conservation areas; environmental impact; frogs; landscapes; larvae; models; oils; renewable energy sources; water quality; wells; wetlands; wildlife habitats; Montana; North Dakota; Prairie Pothole region
Abstract:
... To inform sustainable energy development, it is important to understand the ecological effects of historical and current production practices and the persistence of those effects. The Williston Basin is one of North America's largest oil production areas and overlaps the Prairie Pothole Region, an area densely populated with wetlands that provide important wildlife habitat. Although historical dis ...
DOI:
10.1016/j.biocon.2018.10.007

74. Feral swine Sus scrofa: a new threat to the remaining breeding wetlands of the Vulnerable reticulated flatwoods salamander Ambystoma bishopi

Author:
Kelly C. Jones; Thomas A. Gorman; Brandon K. Rincon; John Allen; Carola A. Haas; Richard M. Engeman
Source:
Oryx 2018 v.52 no.4 pp. 669-676
ISSN:
1365-3008
Subject:
Ambystoma; Sus scrofa; adults; breeding; breeding season; ecosystems; eggs; feral animals; habitats; larvae; monitoring; rooting; salamanders and newts; swine; threatened species; vegetation; wetlands; wildlife; United States
Abstract:
... Feral swine Sus scrofa have been implicated as a major threat to sensitive habitats and ecosystems as well as threatened wildlife. Nevertheless, direct and indirect impacts on threatened species (especially small, fossorial species) are not well documented. The decline of the U.S. federally endangered reticulated flatwoods salamander Ambystoma bishopi, categorized as Vulnerable on the IUCN Red Lis ...
DOI:
10.1017/S0030605316001253

75. Floodplains provide important amphibian habitat despite multiple ecological threats

Author:
Meredith A. Holgerson; Adam Duarte; Marc P. Hayes; Michael J. Adams; Julie A. Tyson; Keith A. Douville; Angela L. Strecker
Source:
Ecosphere 2019 v.10 no.9 pp. e02853
ISSN:
2150-8925
Subject:
Ambystoma; Bayesian theory; Lithobates catesbeianus; Rana aurora; aquatic habitat; basins; ecosystems; environmental factors; fish; floodplains; frogs; hydrology; indigenous species; introduced species; land use change; landscapes; ponds; predation; probability; rivers; salamanders and newts; wetlands; Washington (state)
Abstract:
... Floodplain ponds and wetlands are productive and biodiverse ecosystems, yet they face multiple threats including altered hydrology, land use change, and non‐native species. Protecting and restoring important floodplain ecosystems requires understanding how organisms use these habitats and respond to altered environmental conditions. We developed Bayesian models to evaluate occupancy of six amphibi ...
DOI:
10.1002/ecs2.2853

76. Indirect connectivity estimates of amphibian breeding wetlands from spatially explicit occupancy models

Author:
George C. Brooks; Jennifer A. Smith; Emmanuel A. Frimpong; Thomas A. Gorman; Houston C. Chandler; Carola A. Haas
Source:
Aquatic conservation 2019 v.29 no.11 pp. 1815-1825
ISSN:
1052-7613
Subject:
Ambystoma; basins; breeding; dynamic models; endangered species; landscapes; larvae; oviposition; refuge habitats; salamanders and newts; understory; vegetation; wetlands
Abstract:
... In conservation science, metapopulation models are frequently used to explore the spatial dynamics of organisms, and ultimately guide management decisions for threatened and endangered species. Pond‐breeding amphibians are often touted as a classic example of metapopulation structure. However, empirical assessment of this assumption is lacking for many species owing to the prohibitively high costs ...
DOI:
10.1002/aqc.3190

77. Larval salamanders are as effective at short-term mosquito predation as mosquitofish

Author:
Amanda M. Watters; Freya E. Rowland; Raymond D. Semlitsch
Source:
Canadian journal of zoology 2018 v.96 no.10 pp. 1165-1169
ISSN:
1480-3283
Subject:
Ambystoma; Culicidae; Gambusia affinis; Rana; biological control; body size; ecosystems; environmental impact; frogs; insect larvae; introduced species; laboratory experimentation; mosquito control; ponds; predation; salamanders and newts; tadpoles; wetlands
Abstract:
... Biological control of mosquitoes can have unintended ecological consequences. One example is the introduction of the genus Gambusia Poey, 1854 into ponds and wetlands. Gambusia spp. are invasive in many parts of the world and have the potential to alter ecosystems by changing trophic interactions and extirpating amphibians. We sought to determine whether larval amphibians are capable of consuming ...
DOI:
10.1139/cjz-2017-0267

78. A Long-term Demographic Study of a Spotted Salamander (Ambystoma maculatum) Population in Central Ohio

Author:
Rebecca N. Homan; Meredith A. Holgerson; Lindsay M. Biga
Source:
Herpetologica 2018 v.74 no.2 pp. 109-116
ISSN:
1938-5099
Subject:
Ambystoma; adults; body size; breeding; females; infectious diseases; juveniles; males; mortality; population size; salamanders and newts; sex ratio; Ohio
Abstract:
... The need for long-term demographic studies on apparently healthy amphibian populations led us to undertake an intensive examination of a population of Spotted Salamanders (Ambystoma maculatum) at a small, temporary pond in Ohio. From 2005 to 2014, we captured adults and juveniles at the pond edge, individually marked a subset of adults, and examined patterns in breeding population size, sex ratios ...
DOI:
10.1655/Herpetologica-D-17-00067.1

79. Phylogeny of the egg-loving green alga Oophila amblystomatis (Chlamydomonadales) and its response to the herbicides atrazine and 2,4-D

Author:
Mohini Nema; Mark L. Hanson; Kirsten M. Müller
Source:
Symbiosis 2019 v.77 no.1 pp. 23-39
ISSN:
0334-5114
Subject:
2,4-D; Ambystoma; Oophila; algae; atrazine; eggs; genes; geographical distribution; mitochondria; monophyly; paraphyly; phylogeography; ribosomal RNA; risk; risk assessment; salamanders and newts; species identification; symbiosis; toxicity testing
Abstract:
... The spotted salamander (Ambystoma maculatum) shares a unique endosymbiotic relationship with the unicellular green alga, Oophila amblystomatis. Despite studies isolating and identifying O. amblystomatis in salamander eggs, the taxonomic identity of the alga remains a point of ongoing debate. In this study, the nuclear SSU rRNA gene was used to characterize two well-supported Oophila clades that in ...
DOI:
10.1007/s13199-018-0564-1

80. Post-Breeding Migration and Habitat of Unisexual Salamanders in Maine, USA

Author:
Kristine Hoffmann; Malcolm Hunter; Aram J. K. Calhoun; James Bogart
Source:
Journal of herpetology 2018 v.52 no.3 pp. 273-281
ISSN:
1937-2418
Subject:
Ambystoma; burrows; forest litter; habitat preferences; habitats; hybridization; hybrids; nuclear genome; phenotype; radio; salamanders and newts; small mammals; temperature; vegetation; vernal pools; Maine
Abstract:
... The behavioral phenotypes of hybrids vary in degree of similarity to their parent species. Unisexual salamanders (Ambystoma laterale sp.), the result of ancient hybridization, contain nuclear DNA of multiple sperm-host species whose habitat preferences differ from one another. We radio tracked unisexual salamanders from four vernal pools to quantify migration distances and post-breeding habitat se ...
DOI:
10.1670/17-099

81. Predicting Ambystoma ordinarium Habitat in Central Mexico Using Species Distribution Models

Author:
Luis H. Escalera-Vázquez; Rafael Hernández-Guzmán; Carlos Soto-Rojas; Ireri Suazo-Ortuño
Source:
Herpetologica 2018 v.74 no.2 pp. 117-126
ISSN:
1938-5099
Subject:
Ambystoma; air temperature; altitude; aquatic ecosystems; atmospheric precipitation; biogeography; databases; deforestation; forests; geographic information systems; grasslands; habitats; highlands; human settlements; meteorological data; models; monitoring; mountains; prediction; risk; salamanders and newts; secondary succession; streams; surveys; urbanization; Mexico
Abstract:
... Amphibian diversity in Neotropical mountains habitats is at risk, particularly those species associated with stream habitats at altitudes >500 m above sea level (a.s.l.). This pertains especially to the amphibian diversity of Mexico, where the number of species is high on the central and southwestern highlands. In the present study, we predicted the potential distribution of Ambystoma ordinarium u ...
DOI:
10.1655/Herpetologica-D-16-00078.1

82. Using spatial demographic network models to optimize habitat management decisions

Author:
William E. Peterman; Thomas L. Anderson; Brittany H. Ousterhout; Dana L. Drake; Jacob J. Burkhart; Freya Rowland; Raymond D. Semlitsch
Source:
journal of wildlife management 2018 v.82 no.3 pp. 649-659
ISSN:
0022-541X
Subject:
Ambystoma; Monte Carlo method; habitat conservation; habitats; landscape management; mathematical theory; models; uncertainty; wildlife management; wood; Missouri
Abstract:
... Conservation and management activities are always constrained by finite resources. Therefore, decisions such as which sites to protect, whether existing habitat should be restored or whether new habitat should be created, and where on the landscape management efforts should be focused present difficult challenges. An overarching goal of many conservation or management plans is the long‐term persis ...
DOI:
10.1002/jwmg.21393

83. A salamander survey of the Turkey Hill Oxbow, Columbia County, Pennsylvania, with comparison to historic records from an institutional collection

Author:
Sean M. Hartzell
Source:
Bios 2019 v.90 no.1 pp. 42-46
ISSN:
0005-3155
Subject:
Ambystoma; Desmognathus; Plethodon cinereus; herpetology; salamanders and newts; surveys; wetlands; Pennsylvania
Abstract:
... The Turkey Hill Oxbow, a small, locally significant forested/wetland area in central Columbia County, Pennsylvania, was surveyed for salamanders during 2015. A comparison of recent records was made to historic collections from this location within the herpetology collection housed at Bloomsburg University of Pennsylvania (BU). Nine salamander species, encompassing a total of 132 individuals, were ...
DOI:
10.1893/0005-3155-90.1.42

84. Amphibian dynamics in constructed ponds on a wildlife refuge: developing expected responses to hydrological restoration

Author:
Blake R. Hossack
Source:
Hydrobiologia 2017 v.790 no.1 pp. 23-33
ISSN:
0018-8158
Subject:
Ambystoma; Anaxyrus boreas; Pseudacris regilla; Rana; breeding; breeding sites; conservation areas; ecological restoration; extinction; frogs; habitats; hydrology; models; ponds; salamanders and newts; toads; wetlands; Montana
Abstract:
... Management actions are based upon predictable responses. To form expected responses to restoration actions, I estimated habitat relationships and trends (2002–2015) for four pond-breeding amphibians on a wildlife refuge (Montana, USA) where changes to restore historical hydrology to the system greatly expanded (≥8 times) the flooded area of the primary breeding site for western toads (Anaxyrus bor ...
DOI:
10.1007/s10750-016-2979-0

85. Behavioral syndrome persists over metamorphosis in a pond-breeding amphibian

Author:
Adam M. Koenig; Brittany H. Ousterhout
Source:
Behavioral ecology and sociobiology 2018 v.72 no.12 pp. 184
ISSN:
0340-5443
Subject:
Ambystoma; animal behavior; ecology; juveniles; larvae; life history; metamorphosis; ontogeny; plasticity; prediction; salamanders and newts
Abstract:
... In recent years, behavioral ecology has shifted from assuming animal behavior is infinitely plastic and situation specific to recognizing that behavior can be limited in its plasticity and correlated across different ecological situations. At the center of this new framework are behavioral syndromes or consistent individual differences in behavioral tendencies. Over the past decade, numerous studi ...
DOI:
10.1007/s00265-018-2595-2

86. Effects of diet quality and stress on interference behaviour of larval ringed salamanders

Author:
Courtney A. Heuring; Whitney L. Heuring; Adam L. Crane; Alicia Mathis
Source:
Amphibia-reptilia v.38 no.1 pp. 89-96
ISSN:
0173-5373
Subject:
Ambystoma; aggression; animal physiology; body size; cannibalism; diet; intrinsic factors; larvae; motivation; nutritional adequacy; predators; salamanders and newts
Abstract:
... Interference behaviour (aggression and cannibalism) can be influenced by both intrinsic factors, such as animal physiology, size, or motivation, and extrinsic factors, such as presence of competitors, predators, or prey. Our experiment examined the effects of differences in diet quality of focal salamanders and their opponents, and levels of handling on biting by pairs of larval ringed salamanders ...
DOI:
10.1163/15685381-00003089

87. Extinction Debt as a Driver of Amphibian Declines: An Example with Imperiled Flatwoods Salamanders

Author:
Raymond D. Semlitsch; Susan C. Walls; William J. Barichivich; Katherine M. O'Donnell
Source:
Journal of herpetology 2017 v.51 no.1 pp. 12-18
ISSN:
1937-2418
Subject:
Ambystoma; coastal plains; extinction; habitats; population dynamics; salamanders and newts; species diversity; Southeastern United States
Abstract:
... A comprehensive view of population declines and their underlying causes is necessary to reverse species loss. Historically, in many cases, a narrow view may have allowed species declines to continue, virtually undetected, for long periods of time (perhaps even decades). We suggest that extinction debt is likely responsible for numerous (perhaps most) amphibian declines and that this perspective sh ...
DOI:
10.1670/16-090

88. Increased Amphibian Presence In A Montane Lake After Fish Removal, Mount Rainier National Park, Washington

Author:
Gary L Larson; Robert L Hoffman; Rebecca Lofgren; Barbara Samora; Scott Anderson
Source:
Northwestern naturalist 2017 v.98 no.3 pp. 228-236
ISSN:
1051-1733
Subject:
Ambystoma; Ascaphus; Rana; Salvelinus fontinalis; adults; amphibians; fish; fish communities; gillnets; introduced species; lakes; larvae; national parks; surveys; Washington (state)
Abstract:
... During the period 1996–2003, a population of introduced Salvelinus fontinalis was eradicated from a montane lake in Mount Rainier National Park, Washington State, USA. Using mostly gill-nets, 2185 fish were removed. Snorkel and visual encounter surveys (n = 10 and 6, respectively) were completed 1996–2001, to document the apparent abundances of amphibian species present in the lake and an adjacent ...
DOI:
10.1898/NWN16-17.1

89. Informing recovery in a human-transformed landscape: Drought-mediated coexistence alters population trends of an imperiled salamander and invasive predators

Author:
Blake R. Hossack; R. Ken Honeycutt; Brent H. Sigafus; Erin Muths; Catherine L. Crawford; Thomas R. Jones; Jeff A. Sorensen; James C. Rorabaugh; Thierry Chambert
Source:
Biological conservation 2017 v.209 pp. 377-394
ISSN:
0006-3207
Subject:
Ambystoma; Lithobates catesbeianus; climate change; drought; fish; habitats; hydrology; indigenous species; invasive species; landscapes; life history; models; monitoring; natural resources conservation; ponds; predators; probability; salamanders and newts; surveys; Southwestern United States
Abstract:
... Understanding the additive or interactive threats of habitat transformation and invasive species is critical for conservation, especially where climate change is expected to increase the severity or frequency of drought. In the arid southwestern USA, this combination of stressors has caused widespread declines of native aquatic and semi-aquatic species. Achieving resilience to drought and other ef ...
DOI:
10.1016/j.biocon.2017.03.004

90. Joint effects of resources and amphibians on pond ecosystems

Author:
Freya E. Rowland; Madelyn B. Rawlings; Raymond D. Semlitsch
Source:
Oecologia 2017 v.183 no.1 pp. 237-247
ISSN:
0029-8549
Subject:
Ambystoma; Chironomidae; Daphnia; Lithobates; biomass; climate change; ecosystems; forest canopy; frogs; invertebrates; land use; models; nutrient availability; nutrients; omnivores; periphyton; phytoplankton; predators; prediction; primary productivity; salamanders and newts; shade; tadpoles; temporal variation; trophic levels
Abstract:
... Primary production can be controlled through bottom–up (e.g., resources) or top–down (e.g., predators) constraints. Two key bottom–up resources in small aquatic systems are light and nutrients, and forest canopy cover heavily influences these factors, whereas amphibian and invertebrate colonizers exert top–down pressure as grazers and predators. We designed our experiment to specifically manipulat ...
DOI:
10.1007/s00442-016-3748-5

91. Learning to find food: evidence for embryonic sensitization and juvenile social learning in a salamander

Author:
Adam L. Crane; Emilee J. Helton; Maud C.O. Ferrari; Alicia Mathis
Source:
Animal behaviour 2018 v.142 pp. 199-206
ISSN:
0003-3472
Subject:
Ambystoma; adults; animal behavior; eggs; hatching; juveniles; larvae; learning; models; mussels; novel foods; odors; ponds; salamanders and newts; shrimp; social behavior
Abstract:
... For many species, learning is an essential mechanism for dealing with the environment correctly and efficiently. Animals that quickly learn important information, and learn at a young age, can gain a competitive advantage in exploiting resources. Moreover, animals that learn indirectly through social observations can avoid the fitness costs of directly learning about potential dangers. Here we tes ...
DOI:
10.1016/j.anbehav.2018.06.021

92. Locomotor endurance predicts differences in realized dispersal between sympatric sexual and unisexual salamanders

Author:
Robert D. Denton; Katherine R. Greenwald; H. Lisle Gibbs
Source:
Functional ecology 2017 v.31 no.4 pp. 915-926
ISSN:
0269-8463
Subject:
Ambystoma; adults; colonizing ability; habitat fragmentation; mitochondria; mitochondrial genome; models; polyploidy; salamanders and newts; sympatry; wetlands; Ohio
Abstract:
... Dispersal is the central mechanism that determines connectivity between populations yet few studies connect the mechanisms of movement with realized dispersal in natural populations. To make such a link, we assessed how physiological variation among individuals predicted dispersal in natural populations of unisexual (all‐female) and sexual Ambystoma salamanders on the same fragmented landscape in ...
DOI:
10.1111/1365-2435.12813

93. Metabarcoding of Environmental DNA Samples to Explore the Use of Uranium Mine Containment Ponds as a Water Source for Wildlife

Author:
Katy E. Klymus; Catherine A. Richter; Nathan Thompson; Jo Ellen Hinck
Source:
Diversity 2017 v.9 no.4 pp. -
ISSN:
1424-2818
Subject:
Ambystoma; DNA; DNA barcoding; Urocyon cinereoargenteus; anthropogenic activities; biodiversity; centrifugation; community structure; ecotoxicology; filtration; genes; landscapes; ponds; ribosomal RNA; risk assessment; surface water; surveys; uranium; vertebrates; wildlife
Abstract:
... Understanding how anthropogenic impacts on the landscape affect wildlife requires a knowledge of community assemblages. Species surveys are the first step in assessing community structure, and recent molecular applications such as metabarcoding and environmental DNA analyses have been proposed as an additional and complementary wildlife survey method. Here, we test eDNA metabarcoding as a survey t ...
DOI:
10.3390/d9040054

94. Microgeographic Adaptation of Wood Frog Tadpoles to an Apex Predator

Author:
Mark C. Urban; Jonathan L. Richardson; Nicole A. Freidenfelds; Dana L. Drake; John F. Fischer; Peter P. Saunders
Source:
Copeia 2017 v.105 no.3 pp. 451-461
ISSN:
0045-8511
Subject:
Lithobates sylvaticus; risk; life history; tadpoles; winter; salamanders and newts; evolution; Ambystoma; ecological resilience; gene flow; predation; ecosystems; eggs
Abstract:
... Rapid adaptation of defenses can alter ecological dynamics following introduction of a new predator. We tested for local adaptation in Wood Frog (Rana sylvatica) populations that face varying selection from an apex predator, the Marbled Salamander (Ambystoma opacum), which is expanding its distribution in the study region. We performed a reciprocal transplant experiment with Wood Frog eggs and tad ...
DOI:
10.1643/CG-16-534

95. Moving beyond the plane: measuring 3D home ranges of juvenile salamanders with passive integrated transponder (PIT) tags

Author:
Brittany H. Ousterhout; Jacob J. Burkhart
Source:
Behavioral ecology and sociobiology 2017 v.71 no.4 pp. 59
ISSN:
0340-5443
Subject:
Ambystoma; animal behavior; environmental factors; global positioning systems; habitat conservation; habitats; home range; juveniles; microclimate; reproduction; salamanders and newts; soil; telemetry; transponders; weather
Abstract:
... An individual’s home range, or how much space it requires to obtain resources and meet its needs for survival and reproduction, affects the scale of many fundamental processes in ecology and can inform the management of species. Although home range size has been described for many taxa in two dimensions (2D), for species that also have a strong vertical component to their movement, such representa ...
DOI:
10.1007/s00265-017-2284-6

96. Multiple Paternity Benefits Female Marbled Salamanders by Increasing Survival of Progeny to Metamorphosis

Author:
Dean A. Croshaw; Joseph H. K. Pechmann; Travis C. Glenn
Source:
Ethology 2017 v.123 no.4 pp. 307-315
ISSN:
0179-1613
Subject:
Ambystoma; animal behavior; breeding; eggs; fathers; females; larvae; males; maternal effect; metamorphosis; microsatellite repeats; paternity; polyandry; prediction; progeny; salamanders and newts; spermatozoa; viability
Abstract:
... Multiple paternity occurs in most species and animal groups that have been studied. Because mating involves fitness costs to individual females, theory predicts that polyandrous females gain greater fitness benefits than costs, allowing the behavior to be maintained. Genetic, rather than material, benefits often occur in species where males provide females with little more than sperm and seminal f ...
DOI:
10.1111/eth.12597

97. Predictors of breeding site occupancy by amphibians in montane landscapes

Author:
Luke A. Groff; Cynthia S. Loftin; Aram J.K. Calhoun
Source:
journal of wildlife management 2017 v.81 no.2 pp. 269-278
ISSN:
0022-541X
Subject:
Ambystoma; Castor canadensis; Lithobates sylvaticus; cold; ecoregions; ectothermy; habitats; salamanders and newts; wetlands; wildlife management; Maine
Abstract:
... Ecological relationships and processes vary across species’ geographic distributions, life stages and spatial, and temporal scales. Montane landscapes are characterized by low wetland densities, rugged topographies, and cold climates. Consequently, aquatic‐dependent and low‐vagility ectothermic species (e.g., pool‐breeding amphibians) may exhibit unique ecological associations in montane landscape ...
DOI:
10.1002/jwmg.21184

98. Reconnecting Amphibian Habitat through Small Pond Construction and Enhancement, South Okanagan River Valley, British Columbia, Canada

Author:
Sara L. Ashpole; Christine A. Bishop; Stephen D. Murphy
Source:
Diversity 2018 v.10 no.4 pp. -
ISSN:
1424-2818
Subject:
Ambystoma; Pseudacris regilla; anthropogenic stressors; basins; breeding; eggs; frogs; habitat conservation; habitat destruction; habitats; landowners; landscapes; metamorphosis; monitoring; ponds; riparian areas; risk; river valleys; stakeholders; wetlands; British Columbia
Abstract:
... The arid south Okanagan River Valley, British Columbia is a highly-modified landscape; where wetland and riparian habitat loss exceeds 85%, and 88% of remaining wetlands experience at least one harmful anthropogenic stressor. This multi-stressor landscape for amphibian species at risk led to a collaborative stakeholder approach for habitat restoration and species recovery. The main project goal wa ...
DOI:
10.3390/d10040108

99. Relative predation risk and risk of desiccation co-determine oviposition preferences in Cope’s gray treefrog, Hyla chrysoscelis

Author:
Matthew R. Pintar; William J. Resetarits Jr.
Source:
Oecologia 2017 v.184 no.2 pp. 423-430
ISSN:
0029-8549
Subject:
Ambystoma; Hyla; adults; freshwater; habitats; larvae; lentic systems; oviposition; oviposition sites; ponds; predation; progeny; risk; salamanders and newts
Abstract:
... Habitat permanence and threat of predation are primary drivers of community assembly and composition in lentic freshwater systems. Pond-breeding amphibians select oviposition sites to maximize fitness and minimize risks of predation and desiccation of their offspring, typically facing a trade-off between the two as predation risk often increases as desiccation risk decreases. To experimentally det ...
DOI:
10.1007/s00442-017-3875-7

100. Salamanders on the bench – A biocompatibility study of salamander skin secretions in cell cultures

Author:
Janek von Byern; Dietrich Mebs; Egon Heiss; Ursula Dicke; Oliver Wetjen; Kristin Bakkegard; Ingo Grunwald; Susanne Wolbank; Severin Mühleder; Alfred Gugerell; Heidemarie Fuchs; Sylvia Nürnberger
Source:
Toxicon 2017 v.135 pp. 24-32
ISSN:
0041-0101
Subject:
Ambystoma; Plethodon; Salamandra salamandra; antipredatory behavior; biocompatibility; biomimetics; cell culture; chondrocytes; cytotoxicity; direct contact; endothelial cells; fibroblasts; humans; indirect contact; salamanders and newts; toxins; umbilical veins; viability
Abstract:
... Salamanders have evolved a wide variety of antipredator mechanisms and behavior patterns, including toxins and noxious or adhesive skin secretions. The high bonding strength of the natural bioadhesives makes these substances interesting for biomimetic research and applications in industrial and medical sectors. Secretions of toxic species may help to understand the direct effect of harmful substan ...
DOI:
10.1016/j.toxicon.2017.05.021