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Neighbour-stranger discrimination plays a crucial role in territorial animals and is expressed as either the dear enemy phenomenon or the nasty neighbour effect. Previous evidence showed that the size of intruding groups affected the expression of neighbour-stranger discrimination. However, few...
Understanding the main factors driving the evolution of mating systems is a major goal of behavioral ecology. In ungulates, the transition from forests to open habitats and the accompanying clustered spatial distribution of females are thought to have promoted an evolutionary shift from monogamy...
Numerous studies have examined the correlation between offspring quantity and quality, and many have found that the most common brood size is often smaller than broods with the highest offspring quality or production. However, the reasons why these small broods with lower offspring quality are...
Animals capable of rapid (i.e., physiological) body color change may use color to respond quickly to changing social or physical environments. Because males and females often differ in their environments, the sexes may use changes in body color differently, reflecting sexual dimorphism in...
Conspecific cues often provide social information on habitat quality that is considered when deciding to settle at a specific site. The type of sensory cues useful for this will depend on the environment. For amphisbaenians, reptiles adapted to an underground life with highly reduced sight,...
Nesting behavior is an important part of reproduction that affects maternal fitness. Females of most oviparous species choose microhabitats for nesting that have positive effects on embryo development. However, choosing suitable nest microhabitats could be challenging in environments that...
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