All around the globe, species biodiversity is threatened by landscape fragmentation and habitat loss. The consequences of these two processes are manifold and they can result in loss of ecosystem functions and extinction ...

In animal societies, individual fitness partly depends on a decision on whether or not to provide parental care, and the number of mating partners. The later defines a social mating system, whereas consequences of copulations, ...

Males living in multi-male groups display a wide range of relationships with co-resident males, varying from high levels of competition, intolerance and avoidance to cooperation, affiliation and social bonds. Despite the ...

For zoologists, and especially primatologists, it has been a longstanding aim to decipher the causes of individual variability. Phenotypes associated with the hypothalamic-pituitary-adrenal (HPA)-axis, a central physiological ...

The fitness limiting resource for most male primates is the indivisible fertilization of females. Therefore, males commonly compete aggressively with each other over access to receptive females. Among species, however, ...