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Prey often respond to predator presence by increasing their use of refuges. However, unfavorable thermal conditions in refuges might entail physiological costs for an ectothermic prey. Thus, the… Continue Reading
Research on fluctuating asymmetry (FA)–mediated sexual selection has focused almost exclusively on visual signals and ignored chemical communication despite the fact that many species rely on… Continue Reading
Individual animals from the same population, sex, age and reproductive status often respond differently and consistently to predators. One important dimension of this behavioural variation is the… Continue Reading
Alfredo Salvador, Jose P. Veiga," Jose Martin,*'' Pilar Lopez,* Maria Abelenda, and Marisa Puerta Departamento de Ecologia Evolutiva, Museo Nacional de Ciencias Naturales, C.S.I.C., J. Gutierrez… Continue Reading
Abstract The establishment of fighting rules and the ability to recognise individual conspecifics and to assess their fighting ability and/or roles may help to reduce costs of fighting. We staged… Continue Reading
1. Male competition for females often results in the evolution of conspicuous male traits that signal fighting ability or dominance status. Most studies examining mechanisms allowing these traits to… Continue Reading
BACKGROUND The purpose of the study was to determine the role of fecal calprotectin and lactoferrin in the prediction of inflammatory bowel disease relapses, both in patients with ulcerative colitis… Continue Reading
Theoretical models of escape behavior suggest that the optimal distance at which an animal starts to flee (approach distance) increases with distance to the refuge. However, the extent of reliance ...
Prey often respond to predator presence by increasing their use of refuges. However, refuge use may have some costs such as lost opportunities for foraging, and also physiological costs, such as… Continue Reading
Multiple traits may either signal different characteristics of a male or be redundant. These multiple signals may convey different messages if they are intended for different receivers (e.g., male or… Continue Reading