Results 11 to 20 of about 103,193 (342)

The effect of relatedness and pack size on territory overlap in African wild dogs

Movement Ecology, 2017
Background Spacing patterns mediate competitive interactions between conspecifics, ultimately increasing fitness. The degree of territorial overlap between neighbouring African wild dog (Lycaon pictus) packs varies greatly, yet the role of factors ...
Craig R. Jackson, Rosemary J. Groom, Neil R. Jordan, J. Weldon McNutt   +3 more
doaj   +1 more source

Intolerant baboons avoid observer proximity, creating biased inter-individual association patterns

Scientific Reports, 2022
Social network analysis is an increasingly popular tool for behavioural ecologists exploring the social organisation of animal populations. Such analyses require data on inter-individual association patterns, which in wild populations are often collected
Andrew T. L. Allan, Amy F. White, Russell A. Hill   +2 more
doaj   +1 more source

Foraging behaviour and habitat-use drives niche segregation in sibling seabird species

Royal Society Open Science, 2020
To mediate competition, similar sympatric species are assumed to use different resources, or the same but geographically separated resources. The two giant petrels (Macronectes spp.) are intriguing in that they are morphologically similar seabirds with ...
Ryan R. Reisinger, Tegan Carpenter-Kling, Maëlle Connan, Yves Cherel, Pierre A. Pistorius   +4 more
doaj   +1 more source

Animal-borne acoustic data alone can provide high accuracy classification of activity budgets

Animal Biotelemetry, 2021
Background Studies on animal behaviour often involve the quantification of the occurrence and duration of various activities. When direct observations are challenging (e.g., at night, in a burrow, at sea), animal-borne devices can be used to remotely ...
Andréa Thiebault, Chloé Huetz, Pierre Pistorius, Thierry Aubin, Isabelle Charrier   +4 more
doaj   +1 more source

Morphometry of the reproductive system of the predator Podisus nigrispinus (Dallas, 1851) (Hemiptera, Pentatomidae) when submitted to different temperatures [PDF]

Ciência Rural, 2020
: In order to manipulate the mass rearing of natural enemies, temperature variations can be used. The effects are widely studied for their survival and developmental duration; however, there is little information about their reproductive system in the ...
Ítala Tainy Barreto Francisco dos Santos, Heloisa Safira Santos Pinheiro, Júlio César Melo Poderoso, Vancleber Batista dos Santos, Thiago Xavier Chagas, Genésio Tâmara Ribeiro   +5 more
doaj   +1 more source

The utility of accelerometers to predict stroke rate in captive fur seals and sea lions

Biology Open, 2017
The energy expenditure of free-living fur seals and sea lions is difficult to measure directly, but may be indirectly derived from flipper stroke rate. We filmed 10 captive otariids swimming with accelerometers either attached to a harness (Daily Diary ...
Monique A. Ladds, David A. Rosen, David J. Slip, Robert G. Harcourt   +3 more
doaj   +1 more source

Camouflage in predators [PDF]

Biological Reviews, 2020
ABSTRACTCamouflage – adaptations that prevent detection and/or recognition – is a key example of evolution by natural selection, making it a primary focus in evolutionary ecology and animal behaviour. Most work has focused on camouflage as an anti‐predator adaptation. However, predators also display specific colours, patterns and behaviours that reduce
Matilda Q. R. Pembury Smith, Graeme D. Ruxton   +1 more
openaire   +4 more sources

Foraging in a dynamic environment: Response of four sympatric sub‐Antarctic albatross species to interannual environmental variability

Ecology and Evolution, 2020
Seasonal and annual climate variations are linked to fluctuations in the abundance and distribution of resources, posing a significant challenge to animals that need to adjust their foraging behavior accordingly.
Tegan Carpenter‐Kling, Ryan R. Reisinger, Florian Orgeret, Maëlle Connan, Kim L. Stevens, Peter G. Ryan, Azwianewi Makhado, Pierre A. Pistorius   +7 more
doaj   +1 more source

Consistency in the flight and visual orientation distances of habituated chacma baboons after an observed leopard predation. Do flight initiation distance methods always measure perceived predation risk?

Ecology and Evolution, 2021
Flight initiation distance (FID) procedures are used to assess the risk perception animals have for threats (e.g., natural predators, hunters), but it is unclear whether these assessments remain meaningful if animals have habituated to certain human ...
Andrew T. L. Allan, Annie L. Bailey, Russell A. Hill   +2 more
doaj   +1 more source

Predator confusion is sufficient to evolve swarming behavior [PDF]

J. Royal Society Interface 10 (2013) 2010305, 2012
Swarming behaviors in animals have been extensively studied due to their implications for the evolution of cooperation, social cognition, and predator-prey dynamics. An important goal of these studies is discerning which evolutionary pressures favor the formation of swarms.
arxiv   +1 more source