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1. Colours as aggregation signals in Lepidoptera: Are Heliconius Müllerian mimics?

Author:
Henri Mouy
Source:
Evolutionary ecology 2022 v.36 no.3 pp. 341-353
ISSN:
0269-7653
Subject:
predation,   etc   ; Heliconius; color; mimicry (behavior); probability;     Show all 5 Subjects
Abstract:
... Butterflies are frequently conspicuous. The function of this conspicuousness is understudied and may vary between species or family. Aposematism has frequently been proposed, as well as sexual signalling; even allowing for other functions, gaps seem to remain. Butterflies are also frequently social and many species will aggregate in large clusters. Here I propose that striking colourations may hav ...
DOI:
10.1007/s10682-022-10183-8

2. Morphology of the suckers for hunting behavior in broadclub cuttlefish (Sepia latimanus)

Author:
Ayano Omura; Yuzuru Ikeda
Source:
Ecological research 2022 v.37 no.1 pp. 156-162
ISSN:
0912-3814
Subject:
predation,   etc   ; Sepia; keystone species; pedicel; research;     Show all 5 Subjects
Abstract:
... Cuttlefish has eight arms and two tentacles that it uses to catch prey. Cuttlefish finds prey, extends its tentacles, catches the prey using tentacular clubs, and retracts the prey. After retraction, the cuttlefish holds and transfers the prey to its mouth using its arms. Since this efficient unique predation is one of the significant factors that have made the cuttlefish a keystone species in mar ...
DOI:
10.1111/1440-1703.12278

3. Predation on schooling fish is shaped by encounters between prey during school formation using an Ideal Gas Model of animal movement

Author:
Derrick T. de Kerckhove; Brian J. Shuter
Source:
Ecological modelling 2022 v.470 pp. 110008
ISSN:
0304-3800
Subject:
predation,   etc   ; forage fish; models; stocking rate;     Show all 4 Subjects
Abstract:
... Fish schools reduce their predators' encounter rates not only by performing evasive maneuvers but also by increasing distances between prey patches. However, a similar challenge applies to isolated prey fish seeking refuge during periods of diel school formation. We demonstrate with an Ideal Gas movement model that as the stock sizes of a fish who forms schools daily decreases, school densities do ...
DOI:
10.1016/j.ecolmodel.2022.110008

4. Seahorse Predation by Octopuses in the Caribbean and the West Pacific

Author:
Ellen Muller; David Harasti; Bert W. Hoeksema
Source:
Diversity 2022 v.14 no.2 pp. -
ISSN:
1424-2818
Subject:
predation,   etc   ; Hippocampus (Syngnathidae); habitat destruction; Bonaire;     Show all 4 Subjects
Abstract:
... There is much documentation about seahorses (Hippocampus spp.) being threatened by habitat degradation and overfishing, but relatively few published studies mention their natural predators. The present study documents three cases in which seahorses are being caught by octopuses. In one case, the seahorse was partly consumed. These observations made at Bonaire (Caribbean Netherlands) and New South ...
DOI:
10.3390/d14020125

5. Seasonality in the Emission of Contact Calls in Spix's Disc-Winged Bats (Thyroptera tricolor) Suggests a Potential Role in Mate Attraction

Author:
H. Andrés Hernández-Pinsón; Silvia Chaves-Ramírez; Gloriana Chaverri
Source:
Acta chiropterologica 2022 v.23 no.2 pp. 413-420
ISSN:
1733-5329
Subject:
predation,   etc   ; Thyroptera tricolor; courtship; energy; risk;     Show all 5 Subjects
Abstract:
... Multiple studies show that animals exhibit consistent individual differences in behavior, but they also experience short-term changes in their behavioral responses associated with seasonal events, most notably reproduction. We compare calling rates between the breeding and non-breeding seasons, and between males and females, in Spix's disk-winged bats (Thyroptera tricolor). This species performs a ...
DOI:
10.3161/15081109ACC2021.23.2.011

6. Cannibalism in Microlophus Lizards

Author:
Antonieta Labra; Maximiliano Daigre; Viviana Imil
Source:
Journal of herpetology 2022 v.56 no.1 pp. 67-74
ISSN:
1937-2418
Subject:
predation,   etc   ; ancestry; cannibalism; conspecificity; diet; habitats; herpetology;     Show all 7 Subjects
Abstract:
... Cannibalism involves killing and consuming an individual of the same species. Different factors modulate cannibalism, and here we explored whether the diet diversity would mediate the cannibalism propensity in Microlophus lizards. We compiled the available information on diet and cannibalism of the 22 Microlophus species. We found that there is a relatively high incidence of cannibalism within Mic ...
DOI:
10.1670/20-132

7. Cryptic eco‐evolutionary feedback in the city

Author:
Carly D. Ziter
Source:
journal of animal ecology 2022 v.91 no.3 pp. 510-513
ISSN:
0021-8790
Subject:
predation,   etc   ; Daphnia; Ischnura; animal ecology; evolution; urbanization;     Show all 6 Subjects
Abstract:
... Research Highlight: Brans, K. I., Tüzün, N., Sentis, A., De Meester, L., & Stoks, R. (2021). Cryptic eco‐evolutionary feedback in the city: Urban evolution of prey dampens the effect of urban evolution of the predator. Journal of Animal Ecology. https://doi.org/10.1111/1365‐2656.13601. Despite the strength and ubiquity of urban stressors on multiple taxa, there have been minimal attempts to determ ...
DOI:
10.1111/1365-2656.13657

8. DIY radio-collar attachment for small macropods

Author:
Alexandra K. Ross; Jasmin C. Lawes; Janelle A. Lowry; Mike Letnic
Source:
Australian mammalogy 2022 v.44 no.1 pp. 149-152
ISSN:
0310-0049
Subject:
predation,   etc   ; animal welfare; mammalogy; radio frequency identification;     Show all 4 Subjects
Abstract:
... There is currently a paucity of publications reporting different ways of minimising stress in collared mammals. We describe the construction of a DIY (do-it-yourself; i.e. self-made) radio-collar attachment that can improve the animal welfare outcomes of radio-tracking surveys for small macropods. The flexible collar is light, designed for long-term wear, and can stretch to allow a snagged animal ...
DOI:
10.1071/AM20068

9. Effectiveness of interventions for managing human-large carnivore conflicts worldwide: Scare them off, don't remove them

Author:
Charlotte Lorand; Alexandre Robert; Adrienne Gastineau; Jean-Baptiste Mihoub; Carmen Bessa-Gomes
Source:
Science of the total environment 2022 v.838 pp. 156195
ISSN:
0048-9697
Subject:
predation,   etc   ; carnivores; conflict management; environment; livestock; uncertainty;     Show all 6 Subjects
Abstract:
... Human-wildlife conflicts are associated with a threat to large carnivores, as well as with economic and social costs, thus challenging conservation management around the world. In this study, we explored the effectiveness of common management interventions used worldwide for the purpose of conflict reduction using an evidence-based framework combining expert assessment of intervention effectivenes ...
DOI:
10.1016/j.scitotenv.2022.156195

10. Predation of the Balkan frog Pelophylax kurtmuelleri (Gayda, 1940) (Anura: Ranidae) by the giant water bug Lethocerus patruelis (Stål, 1854) (Hemiptera: Heteroptera: Belostomatidae)

Author:
Apostolos Christopoulos; Hera Daskalaki; Konstantinos Vlachopoulos; Panayiotis Pafilis
Source:
Entomological science 2022 v.25 no.1 pp. e12499
ISSN:
1343-8786
Subject:
predation,   etc   ; Lethocerus; Pelophylax; diet; fish; frogs; Europe;     Show all 7 Subjects
Abstract:
... Lethocerinae water bugs are vertebrate predators that include in their diet large prey such as fish, turtles, snakes and frogs. Although frog consumption is common among the members of the genus Lethocerus, similar reports are unknown from Europe. Here we report a predation event by an adult Lethocerus patruelis (Stål, 1854) on a subadult Balkan water frog Pelophylax kurtmuelleri (Gayda, 1940), th ...
DOI:
10.1111/ens.12499

11. Predation of the critically endangered Fijian crested iguana (Brachylophus vitiensis) by the swamp harrier (Circus approximans)

Author:
Peter S. Harlow; Pita Biciloa; Jennifer E. Taylor
Source:
Austral ecology 2022 v.47 no.3 pp. 713-716
ISSN:
1442-9985
Subject:
predation,   etc   ; Brachylophus; Circus; lizards; mammals; swamps; Fiji;     Show all 7 Subjects
Abstract:
... The Fijian crested iguana (Brachylophus vitiensis) is the largest extant lizard in Fiji, where it enjoys life in the absence of any mammalian predators. On the only island where this iguana is abundant, the only predator appears to be the swamp harrier (Circus approximans), which is non‐selective in its iguana prey, catching individuals in a similar proportion to their size availability. Here we r ...
DOI:
10.1111/aec.13152

12. Property rights and violence in indigenous land in Brazil

Author:
Bernardo Mueller
Source:
Land use policy 2022 v.116 pp. 106063
ISSN:
0264-8377
Subject:
predation,   etc   ; data analysis; land policy; violence; Brazil;     Show all 5 Subjects
Abstract:
... In Brazil establishing secure rights to indigenous land is a prerogative of the President and is the main tool for conducting indigenous policy. It is also highly controversial with intense debate as to the extent of land which should be considered indigenous and the extent of rights that should be protected. Despite strong constitutional rights, indigenous territories have been regularly encroach ...
DOI:
10.1016/j.landusepol.2022.106063

13. Stronger negative species interactions in the tropics supported by a global analysis of nest predation in songbirds

Author:
Beata Matysioková; Vladimír Remeš
Source:
Journal of biogeography 2022 v.49 no.3 pp. 511-522
ISSN:
0305-0270
Subject:
predation,   etc   ; Passeriformes; biogeography; latitude; nests; species richness;     Show all 6 Subjects
Abstract:
... AIM: Species interactions are assumed to be stronger closer to the equator. However, numerous studies provided conflicting results and considerable controversy exists concerning the latitudinal patterns in the intensity of biotic interactions. Thus, the question of whether biotic interactions are stronger near the equator remains open. Here, we provide a global evaluation of latitudinal trends in ...
DOI:
10.1111/jbi.14321

14. A simple theory for the mesopredator release effect: when does an apex predator protect their shared prey from a mesopredator?

Author:
Gaku Takimoto; Shota Nishijima
Source:
Oikos 2022 v.2022 no.5 pp. e09021
ISSN:
0030-1299
Subject:
predation,   etc   ; biodiversity conservation; mathematical models; mesopredators; predator control;     Show all 5 Subjects
Abstract:
... Predation plays a variety of important roles in structuring ecological communities. The mesopredator release effect occurs when the removal of an apex predator increases the density of a mesopredator, which in turn reduces the density of their shared prey. The mesopredator release effect can pose significant challenges for predator management and biodiversity conservation. Although several mathema ...
DOI:
10.1111/oik.09021

15. AgRP neurons: Regulators of feeding, energy expenditure, and behavior

Author:
Jennifer D. Deem; Chelsea L. Faber; Gregory J. Morton
Source:
FEBS journal 2022 v.289 no.8 pp. 2362-2381
ISSN:
1742-464X
Subject:
predation,   etc   ; energy expenditure; hunger; neurons; peptides; prioritization; risk;     Show all 7 Subjects
Abstract:
... Neurons in the hypothalamic arcuate nucleus (ARC) that express agouti‐related peptide (AgRP) govern a critical aspect of survival: the drive to eat. Equally important to survival is the timing at which food is consumed—seeking or eating food to alleviate hunger in the face of a more pressing threat, like the risk of predation, is clearly maladaptive. To ensure optimal prioritization of behaviors w ...
DOI:
10.1111/febs.16176

16. Application of machine learning and acoustic predation tags to classify migration fate of Atlantic salmon smolts

Author:
Daniela V. Notte; Robert J. Lennox; David C. Hardie; Glenn T. Crossin
Source:
Oecologia 2022 v.198 no.3 pp. 605-618
ISSN:
0029-8549
Subject:
predation,   etc   ; Salmo salar; acoustics; mortality; pH; smolts; telemetry;     Show all 7 Subjects
Abstract:
... Mortality and predation of tagged fishes present a serious challenge to interpreting results of acoustic telemetry studies. There is a need for standardized methods to identify predated individuals and reduce the impacts of “predation bias” on results and conclusions. Here, we use emerging approaches in machine learning and acoustic tag technology to classify out-migrating Atlantic salmon (Salmo s ...
DOI:
10.1007/s00442-022-05138-3

17. Breeding ecology of Rufous Potoo Nyctibius bracteatus in central Amazonian Brazil

Author:
Marcelo Henrique Mello Barreiros; Mariana Tolentino; Gabriel Augusto Leite
Source:
Bulletin of the British Ornithologists' Club 2022 v.142 no.1 pp. 145-152
ISSN:
2513-9894
Subject:
predation,   etc   ; color; eggs; natural history; nests; understory; Brazil;     Show all 7 Subjects
Abstract:
... The smallest potoo, Rufous Potoo Nyctibius bracteatus is a little-known and inconspicuous species of the understorey in Amazonian terra firme forests, where it roosts by day. Currently, there are few published observations describing its natural history and reproductive ecology. We present data on nest and egg characteristics, nestling appearance, behaviour and development, and parental care, base ...
DOI:
10.25226/bboc.v142i1.2022.a9

18. How might Gyrodactylus parasitism modify trade-offs between female preference and susceptibility of males to predation in Trinidadian guppies?

Author:
Alexis M. Heckley; José Jonathas P.R. de Lira; Andrew P. Hendry; Felipe Pérez-Jvostov
Source:
International journal for parasitology 2022 v.52 no.7 pp. 459-467
ISSN:
0020-7519
Subject:
predation,   etc   ; Gyrodactylus; Poecilia reticulata; females; males; parasitism; parasitology;     Show all 7 Subjects
Abstract:
... A number of examples exist of trade-offs between mating success and survival; that is, success in one fitness component comes at the cost of success in the other fitness component. However, these expected trade-offs are – perhaps even more commonly – not observed. One explanation for this apparent paradox of missing trade-offs could be that the other factors generating fitness variation across ind ...
DOI:
10.1016/j.ijpara.2022.01.006

19. Long-term changes in reef fish assemblages after 40 years of no-take marine reserve protection

Author:
H. Allard; A.M. Ayling; N.T. Shears
Source:
Biological conservation 2022 v.265 pp. 109405
ISSN:
0006-3207
Subject:
predation,   etc   ; biomass; fish; habitats; herbivores; macroalgae; New Zealand;     Show all 7 Subjects
Abstract:
... Marine reserves can increase the abundance and size of harvested fish species, but the indirect effects of protection on wider fish assemblages are less well understood. Better understanding how marine reserves indirectly effect reef fish is essential to interpreting changes in non-targeted taxa and informing management expectations as to the long-term effects of marine protection. We investigated ...
DOI:
10.1016/j.biocon.2021.109405

20. Post‐fledging spatial dispersion and movement behaviour differs between cavity‐nesting and open‐cup nesting passerines

Author:
Necmiye Şahin Arslan; Thomas E. Martin
Source:
Ibis 2022 v.164 no.2 pp. 486-493
ISSN:
0019-1019
Subject:
predation,   etc   ; Passeriformes; juveniles; nests; progeny; radio telemetry; songbirds;     Show all 7 Subjects
Abstract:
... Spatial dispersion and movement behaviour of siblings vary across animal taxa and can affect fitness. The factors underlying why species differ in movement behaviour of young and why some species form family groups while other species have dispersed young have rarely been addressed. We tested a hypothesis that siblings should be more dispersed in space and move less in species that have offspring ...
DOI:
10.1111/ibi.13027