Chimpanzee immigration: Complex social strategies differ between zoo-based and wild animals
Chimpanzee inter-group encounters are typically aggressive in nature, as individuals have evolved the predisposition to jointly defend their home range against neighbouring groups. In the current study, we present data on the behavioural strategies of chimpanzees (Pan troglodytes) during the integration of one male and two female into a well-established group at Basel Zoo, Switzerland. […]
Effect of new founders on retention of gene diversity in captive populations: A formalization of the nucleus population concept
Abstract 10.1002/zoo.1430120605.abs A nucleus population is a small captive population genetically supported by periodic importation of wild caught animals. Periodic importation will allow nucleus populations to maintain the same amount of gene diversity as larger captive populations that do not import wild caught animals. The function of nucleus populations as envisioned by the IUCN/SSC Captive […]
Public information in selection of nesting colony by lesser kestrels: which cues are used and when are they obtained?
The use of public information is an important component of breeding habitat selection in birds, especially for colonial species. In this way, individuals can reduce the costs of information acquisition, allowing them to make faster and better settlement decisions based on the quality of breeding sites. We studied the roles of two possible sources of […]