Corlatti, Luca Béthaz, Stéphanie von Hardenberg, Achaz Bassano, Bruno Palme, Rupert Lovari, Sandro
Published in
Animal Behaviour
Highlights► Alternative mating tactics (AMTs) may entail differential fitness payoffs. ► We explore possible costs associated with AMTs in rutting male chamois. ► Greater mating effort in territorial males linked to greater parasitism. ► Androgens mediate the trade-off between reproductive effort and immune response. ► These results hint at potenti...
Brosnan, Sarah F. Hopper, Lydia M.
Published in
Animal Behaviour
•Innovation allows individuals to invent new, beneficial behaviours and pass them on.•Inventions do not always occur, nor are all inventions transmitted and preserved.•We consider mechanisms that may inhibit the invention and spread of new behaviours.•Transmission biases may hinder as well as help transmission and preservation.•Strong predictions a...
Cussen, Victoria A. Mench, Joy A.
Published in
Animal Cognition
Psittacines are generally considered to possess cognitive abilities comparable to those of primates. Most psittacine research has evaluated performance on standardized complex cognition tasks, but studies of basic cognitive processes are limited. We tested orange-winged Amazon parrots (Amazona amazonica) on a spatial foraging assessment, the Hamilt...
Moiroux, Joffrey Brodeur, Jacques Boivin, Guy
Published in
Animal Behaviour
•We explored mechanisms inducing higher production of male parasitoids at low and high temperature.•We compared intended vs secondary sex ratios to discriminate between behavioural change and physiological constraint.•More males emerged at low and high temperature than at intermediary temperature, but the mechanisms differed.•We observed a behaviou...
Benhamou, Simon Valeix, Marion Chamaillé-Jammes, Simon Macdonald, David W. Loveridge, Andrew J.
Published in
Animal Behaviour
•We developed a new method to study dynamic interactions from tracking data.•The method takes into account serial correlation in relocations.•Using this method, we studied dynamic interactions in 55 free-ranging lions.•One case of avoidance in shared area; others were attraction/independent movements.•Unexpectedly, males tended to move independentl...
Modlmeier, Andreas P. Keiser, Carl N. Watters, Jason V. Sih, Andy Pruitt, Jonathan N.
Published in
Animal Behaviour
•We outline the concept of keystone individuals.•Keystones are defined as having a disproportionally large effect on groups.•Keystones can occupy a diverse array of functional roles in a group.•We propose methodological approaches to study keystone's impacts.•We explore keystone's evolutionary and ecological implications.
Lienart, Govinda D.H. Mitchell, Matthew D. Ferrari, Maud C.O. McCormick, Mark I.
Published in
Animal Behaviour
•We examined effects of food availability and temperature on risk assessment in fish.•Hungry fish at higher temperature take greater risks under predation threat.•Risk-prone behaviour is likely in order to satisfy energetic requirements.
David, Morgan Gillingham, Mark A.F. Salignon, Marion Laskowski, Kate L. Giraldeau, Luc-Alain
Published in
Animal Behaviour
•Zebra finches foraging in flocks exhibit a speed–accuracy trade-off.•Search accuracy but not search speed predicts feeding success.•Animals trade off several foraging skills when optimizing food intake.•Limited attention may be a universal constraint for foragers.•Speed–accuracy trade-offs contribute to variation in foraging tactics.
Courvoisier, H. Camacho-Schlenker, S. Aubin, T.
Published in
Animal Behaviour
•Winter wrens can discriminate between neighbour and stranger broadcast songs.•Males show stronger response to neighbours than strangers during territory settlement.•There is no ‘dear enemy’ effect, at any time of the breeding season.
Parrish, Audrey E. Beran, Michael J.
Published in
Animal Cognition
We investigated whether chimpanzees (Pan troglodytes) misperceived food portion sizes depending upon the context in which they were presented, something that often affects how much humans serve themselves and subsequently consume. Chimpanzees judged same-sized and smaller food portions to be larger in amount when presented on a small plate compared...
