Results 101 to 110 of about 2,821 (197)

A computational neuroscience framework for quantifying warning signals

open access: yesMethods in Ecology and Evolution
Animal warning signals show remarkable diversity, yet subjectively appear to share certain visual features that make defended prey stand out and look different from more cryptic palatable species.
O. Penacchio   +7 more
doaj   +1 more source

Density–dependent aposematism in the desert locust

open access: yesProceedings of the Royal Society of London. Series B: Biological Sciences, 2000
The ecological processes underlying locust swarm formation are poorly understood. Locust species exhibit phenotypic plasticity in numerous morphological, physiological and behavioural traits as their population density increases. These density-dependent changes are commonly assumed to be adaptations for migration under heterogeneous environmental ...
G A, Sword   +3 more
openaire   +3 more sources

Honest signalling in predator–prey interactions: Testing the resource allocation hypothesis

open access: yesFunctional Ecology, Volume 39, Issue 10, Page 2833-2848, October 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Warning signals are honest if they reliably deliver information about prey unprofitability to predators. One potential mechanism that may create and maintain a positive relationship between the strength of signals and defence is the resource allocation between these ...
Emily Burdfield‐Steel   +5 more
wiley   +1 more source

Educating the enemy: Harnessing learned avoidance behavior in wild predators to increase survival of reintroduced southern corroboree frogs

open access: yesConservation Science and Practice, 2020
After decades of near‐complete extirpation, the yellow‐and‐black‐striped Southern Corroboree Frog (Pseudophryne corroboree) is being reintroduced into field enclosures that exclude all but avian predators.
Kate D. L. Umbers   +5 more
doaj   +1 more source

Visual contrast and color in rapid learning of novel patterns by chicks [PDF]

open access: yes, 2013
Biological communication signals often combine bright and dark colors, such as yellow and black, but it is unclear why such patterns are effective.
Aronsson   +28 more
core   +1 more source

Aposematism [PDF]

open access: yesCurrent Biology, 2015
Valkonen, Janne   +3 more
openaire   +3 more sources

A hypothesis to explain accuracy of wasp resemblances [PDF]

open access: yes, 2016
Mimicry is one of the oldest concepts in biology, but it still presents many puzzles and continues to be widely debated. Simulation of wasps with a yellow-black abdominal pattern by other insects (commonly called “wasp mimicry”) is traditionally ...
Boppré, Michael   +2 more
core   +1 more source

How Do Tiger Moths Jam Bat Sonar? [PDF]

open access: yes, 2011
The tiger moth Bertholdia trigona is the only animal in nature known to defend itself by jamming the sonar of its predators – bats. In this study we analyzed the three-dimensional flight paths and echolocation behavior of big brown ...
Barber, Jesse R.   +3 more
core   +1 more source

Variation of chemical compounds in wild Heliconiini reveals ecological factors involved in the evolution of chemical defenses in mimetic butterflies

open access: yesEcology and Evolution, 2020
Evolutionary convergence of color pattern in mimetic species is tightly linked with the evolution of chemical defenses. Yet, the evolutionary forces involved in natural variations of chemical defenses in aposematic species are still understudied. Herein,
Ombeline Sculfort   +6 more
doaj   +1 more source

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