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Journal of Herpetology
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Ambystoma
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- Author:
- Nussbaum Sarah E.; Ousterhout Brittany H.; Semlitsch Raymond D.
- Source:
- Journal of Herpetology 2016 v.50 no.3 pp. 388-393
- ISSN:
- 0022-1511
- Subject:
- Ambystoma; adults; aggression; breeding; habitats; juveniles; salamanders and newts; sexual maturity; sympatry
- Abstract:
- ... Interference competition is frequently observed in sexually mature adults as they defend breeding territories. However, it remains unclear in many taxa whether juveniles respond aggressively to other juveniles or if they defend resources. To test whether postmetamorphic juveniles of a pond-breeding amphibian were aggressive towards other juveniles or were defending resources, we staged terrestrial ...
- DOI:
- 10.1670/15-160
- https://doi.org/10.1670/15-160
- Author:
- Anderson Thomas L.; Ousterhout Brittany H.; Drake Dana L.; Burkhart Jacob J.; Rowland Freya E.; Peterman William E.; Semlitsch Raymond D.
- Source:
- Journal of Herpetology 2016 v.50 no.3 pp. 464-470
- ISSN:
- 0022-1511
- Subject:
- Ambystoma; allometry; biotic factors; environmental factors; head; larvae; ontogeny; ponds; predation; risk; salamanders and newts; sympatry; Missouri
- Abstract:
- ... Ecological and evolutionary processes commonly result in morphological variation among larval amphibians. Variation in head shape plays a critical role in both food capture and predation risk in gape-limited salamanders, yet in situ studies of head shape variability are rare outside of cannibal morph assessments. We examined allometry differences in larval head width (HW) and snout–vent length (SV ...
- DOI:
- 10.1670/15-178
- https://doi.org/10.1670/15-178
- Author:
- Mills Nathan E.; Ward Zachary A.
- Source:
- Journal of Herpetology 2015 v.49 no.4 pp. 616-620
- ISSN:
- 0022-1511
- Subject:
- Ambystoma; eggs; embryogenesis; environmental factors; hatching; hypoxia; larvae; life history; metamorphosis; oxygen; rearing; salamanders and newts
- Abstract:
- ... Environmental conditions to which amphibians are exposed can influence embryonic development and physiology and thus alter later life-history traits. We exposed Ambystoma maculatum eggs to oxygen partial pressures (PO₂) of 1.6, 3.5, 7.9, 12.4, and 18.1 kPa. No eggs survived in the 1.6-kPa treatment, but 94% of the eggs incubated at greater PO₂s survived to hatching. We reared the resulting larvae ...
- DOI:
- 10.1670/14-043R1
- https://doi.org/10.1670/14-043R1
- Author:
- Currylow Andrea F.; Johnson April J.; Williams Rod N.
- Source:
- Journal of Herpetology 2014 v.48 no.1 pp. 117-121
- ISSN:
- 0022-1511
- Subject:
- Ambystoma; Anura; Ranavirus; Terrapene carolina; cross contamination; disease reservoirs; herpetofauna; larvae; pathogens; risk; salamanders and newts; turtles; viruses; Indiana
- Abstract:
- ... Ranaviruses are emerging as serious pathogens across ectothermic taxa, recently causing mass die-offs including entire chelonian populations. Amphibians may serve as reservoirs for chelonian infections. To assess this idea and determine whether chelonians in the Midwest are infected with (or at risk for) ranavirus infections, we tested for presence of ranavirus infections among sympatric larval am ...
- DOI:
- 10.1670/12-235
- https://doi.org/10.1670/12-235
- Author:
- Charney Noah D.; Ireland Andrea T.; Bettencourt Brian R.
- Source:
- Journal of Herpetology 2014 v.48 no.2 pp. 210-219
- ISSN:
- 0022-1511
- Subject:
- Ambystoma; genome; genotype; geographical distribution; hosts; hybrids; microsatellite repeats; mitochondria; natural selection; salamanders and newts; Massachusetts
- Abstract:
- ... Mapping species' distributions is a primary challenge when managing cryptic lineages of conservation concern. In the case of unisexual Ambystoma salamanders, mapping geographic distribution of genotypes can also help us understand the evolutionary dynamics of one of the most intriguing vertebrate reproductive systems. We combined a mitochondrial sequencing technique with existing nuclear microsate ...
- DOI:
- 10.1670/12-212
- https://doi.org/10.1670/12-212
- Author:
- Kern Madeleine M.; Nassar Adriana A.; Guzy Jacquelyn C.; Dorcas Michael E.
- Source:
- Journal of Herpetology 2013 v.47 no.3 pp. 445-449
- ISSN:
- 0022-1511
- Subject:
- Ambystoma; conservation areas; egg masses; eggs; hydrology; microhabitats; minnows; oviposition sites; predators; regression analysis; salamanders and newts; surveys; temperature; traps; vegetation; vegetation structure; wetlands; North Carolina
- Abstract:
- ... Oviposition site selection is an important aspect of reproduction for species such as amphibians that breed in dynamic environments. We examined predictors of oviposition site selection of Spotted Salamanders (Ambystoma maculatum) at Cowan's Ford Wildlife Refuge in Mecklenburg County, North Carolina. We conducted egg mass surveys and checked 40 minnow traps for potential predators every 2 days alo ...
- DOI:
- 10.1670/11-179
- https://doi.org/10.1670/11-179
- Author:
- Ryan Kevin J.; Calhoun Aram J. K.
- Source:
- Journal of Herpetology 2014 v.48 no.4 pp. 556-566
- ISSN:
- 0022-1511
- Subject:
- trees; summer; forests; correlation; habitat preferences; vernal pools; grasses; salamanders and newts; relative humidity; Acer rubrum; transponders; Ambystoma; highlands; telemetry; swamps; slash; meadows; plant litter; breeding; surveys; spring; stand basal area; habitats; North America
- Abstract:
- ... The pure-diploid Blue-spotted Salamander (Ambystoma laterale) is among the rarest amphibians in northeastern North America, and data on its ecology are sparse. We assessed the movement ecology and terrestrial habitat use of A. laterale using radio- and passive integrated transponder (PIT) tag- telemetry. We radio-tracked 22 A. laterale for a median of 54 days (range 6–126 days) in the spring and s ...
- DOI:
- 10.1670/13-204
- https://doi.org/10.1670/13-204
- Author:
- Fairman Christy M.; Bailey Larissa L.; Chambers Randolph M.; Russell Timothy M.; Funk W. Chris
- Source:
- Journal of Herpetology 2013 v.47 no.2 pp. 346-353
- ISSN:
- 0022-1511
- Subject:
- Ambystoma; acidification; acidity; conservation areas; habitats; highlands; hydrochemistry; larvae; models; pH; ponds; probability; salamanders and newts; trees; vegetation types; Virginia
- Abstract:
- ... We used an occupancy modeling framework to test the relative importance of upland habitat composition (proportion of different types of vegetation and development) and pond characteristics (water chemistry and vegetation) in determining the occurrence of two species of pond-breeding salamanders, the Marbled Salamander (Ambystoma opacum) and Mabee's Salamander (Ambystoma mabeei), in an urban nature ...
- DOI:
- 10.1670/12-019
- https://doi.org/10.1670/12-019