Results 21 to 30 of about 11,459 (217)

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?

open access: yesEcology 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   +2 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]

open access: yesCiência 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   +5 more
doaj   +1 more source

An Economical Custom-Built Drone for Assessing Whale Health

open access: yesFrontiers in Marine Science, 2017
Drones or Unmanned Aerial Vehicles (UAVs) have huge potential to improve the safety and efficiency of sample collection from wild animals under logistically challenging circumstances.
Vanessa Pirotta   +6 more
doaj   +1 more source

Mind the gap: Experimental tests to improve efficacy of fladry for nonlethal management of coyotes

open access: yesWildlife Society Bulletin, 2019
Coyotes (Canis latrans) are the top predator of livestock in the contiguous United States. Developing more effective nonlethal tools to prevent coyote depredation will facilitate coexistence between livestock producers and coyotes.
Julie K. Young   +2 more
doaj   +1 more source

Fear of predators alters herbivore regulation of soil microbial community function

open access: yesEcology and Evolution, 2023
Fear of predation can affect important ecosystem processes by altering the prey traits expression that, in turn, regulates the quantity and quality of nutritional inputs to soil.
Wei Tian   +4 more
doaj   +1 more source

Evaluating fladry designs to improve utility as a nonlethal management tool to reduce livestock depredation

open access: yesWildlife Society Bulletin, 2015
Nonlethal deterrents against carnivores are important components to protecting livestock and conserving carnivore populations. However, the performance of the visual deterrent called fladry, a historical tool used to defend livestock from carnivores, is ...
Julie K. Young   +2 more
doaj   +1 more source

Energy cost and return for hunting in African wild dogs and cheetahs

open access: yesNature Communications, 2016
The long-distance hunting behaviour of African wild dogs is thought to be energetically costly. Here, Hubel et al. show that multiple opportunistic short-distance hunts and group feeding make African wild dogs in mixed woodland savannah energetically ...
Tatjana Y. Hubel   +5 more
doaj   +1 more source

Camouflage in predators [PDF]

open access: yesBiological 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   +1 more
openaire   +3 more sources

Behavioural compatibility, not fear, best predicts the looking patterns of chacma baboons

open access: yesCommunications Biology
Animal vigilance is often investigated under a narrow set of scenarios, but this approach may overestimate its contribution to animal lives. A solution may be to sample all looking behaviours and investigate numerous competing hypotheses in a single ...
Andrew T. L. Allan   +10 more
doaj   +1 more source

How phagocytic cells kill bacteria: Lessons from a professional killer

open access: yesFEBS Open Bio, EarlyView.
How phagocytic cells ingest and kill bacteria has been studied for more than a century, but many questions remain unanswered. The study of the amoeba Dictyostelium discoideum brings new answers, and new questions. Professional phagocytic cells such as neutrophils and macrophages, as well as free‐living soil amoebae like Dictyostelium discoideum, employ
Otmane Lamrabet, Pierre Cosson
wiley   +1 more source

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