0000000000627145

AUTHOR

William L. Allen

showing 3 related works from this author

The evolution and ecology of multiple antipredator defences

2023

Prey seldom rely on a single type of antipredator defence, often using multiple defences to avoid predation. In many cases, selection in different contexts may favour the evolution of multiple defences in a prey. However, a prey may use multiple defences to protect itself during a single predator encounter. Such “defence portfolios” that defend prey against a single instance of predation are distributed across and within successive stages of the predation sequence (encounter, detection, identification, approach (attack), subjugation and consumption). We contend that at present, our understanding of defence portfolio evolution is incomplete, and seen from the fragmentary perspective of speci…

saaliseläimetvuorovaikutuspredation sequencedefence portfolioantergysynergydefence syndromesecondary defencessaalistuseläintiedetrade-offsintraspecific variationantergy defence portfolio defence syndrome intraspecific variation predation sequence predator cognition secondary defences synergypetoeläimetsynergiapuolustuspredator cognition
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A synthesis of deimatic behaviour

2022

Deimatic behaviours, also referred to as startle behaviours, are used against predators and rivals. Although many are spectacular, their proximate and ultimate causes remain unclear. In this review we aim to synthesise what is known about deimatic behaviour and identify knowledge gaps. We propose a working hypothesis for deimatic behaviour, and discuss the available evidence for the evolution, ontogeny, causation, and survival value of deimatic behaviour using Tinbergen's Four Questions as a framework. Our overarching aim is to direct future research by suggesting ways to address the most pressing questions in this field. peerReviewed

defencecognitionsuojavärivaroitusvärisaaliseläimetpredatordeimatismeläinten käyttäytyminenGeneral Biochemistry Genetics and Molecular Biologybehaviourstartleantipredatorevoluutioekologiakilpailu (biologia)Predatory BehaviorpetoeläimetAnimalspreyaposematismpuolustusmekanismit (biologia)General Agricultural and Biological SciencescompetitionBiological Reviews
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The biology of color

2017

In living color Animals live in a colorful world, but we rarely stop to think about how this color is produced and perceived, or how it evolved. Cuthill et al. review how color is used for social signals between individual animals and how it affects interactions with parasites, predators, and the physical environment. New approaches are elucidating aspects of animal coloration, from the requirements for complex cognition and perception mechanisms to the evolutionary dynamics surrounding its development and diversification. Science , this issue p. eaan0221

0301 basic medicinegenetic structuresColor functionEvolutionSpeciationColor perceptionBiologyColor functionSocial signaling03 medical and health sciencesUltraviolet lightStructural colorationAnimalsPhotoreceptor CellsEvolutionary dynamicsOrganismCognitive scienceMultidisciplinaryColor pigmentsColor VisionEcologyMechanism (biology)PigmentationReproductionAnimal colorationPigments BiologicalBiological Evolution030104 developmental biologyCamouflageColor Perception
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