Postcopulatory sexual selection plays an important role in the reproductive success of males in many species. Differences in fertilization success could affect rates of admixture and genetic introgression between divergent lineages. In this paper, sperm precedence in matings in captivity involving common quails and farm quails of hybrid origin, used in restocking practices to increase hunting bags, has been investigated.

Las aves terrestres longevas y de gran tamaño muestran típicamente un comportamiento sedentario en las islas, incluso cuando son migratorias en el continente. La variación denso-dependiente de la edad cuando alcancen la madurez sexual se ha descrito como responsable de la persistencia a largo plazo de poblaciones de aves longevas en las islas. Sin embargo, las poblaciones insulares se benefician también de una mayor tasa de supervivencia por el hecho de no migrar.

One of the main objectives of community ecology is to understand the conditions allowing species to coexist. However, few studies have investigated the role of fine-scale habitat use segregation in the functioning of guild communities in relatively homogeneous landscapes where opportunities for coexistence are likely to be the most restrictive. Authors investigate how the process of habitat use differentiation at the home range level according to the degree of specialism/generalism of species...

Petrels are among the most threatened group of birds. On top of facing predation by introduced mammals and incidental bycatch, these seabirds have to deal with an emerging threat, light pollution.

A huge effort in rhinoceros conservation has focused on poaching and habitat loss as factors leading to the dramatic declines in the endangered eastern black rhinoceros and the southern white rhinoceros. Nevertheless, the role disease and parasite infections play in the mortality of protected populations has largely received limited attention. The goal of this study was to determine the prevalence of piroplasmosis in rhinoceros Kenyan populations, and to assess the association of infection...