Search results for "social selection"

Social phenotype extended to communities: expanded multilevel social selection analysis reveals fitness consequences of interspecific interactions.

2014

In social species, fitness consequences are associated with both individual and social phenotypes. Social selection analysis has quantified the contribution of conspecific social traits to individual fitness. There has been no attempt, however, to apply a social selection approach to quantify the fitness implications of heterospecific social phenotypes. Here, we propose a novel social selection based approach integrating the role of all social interactions at the community level. We extended multilevel selection analysis by including a term accounting for the group phenotype of heterospecifics. We analyzed nest activity as a model social trait common to two species, the lesser kestrel (Falc…

Nest attendance, extended phenotype and social selection in multispecies colonies

2017

Colonial species interact not only with conspecifics but often with other species nesting in the same site. The effect of conspecific traits have been measured recently with a multilevel selection analysis, but the effect of social traits of heterospecifics on individual fitness remain unquantified. We recorded nest attendance effort of two species, lesser kestrels (Falco naumanni) and jackdaws (Corvus monedula), nesting on the Gela Plain (Sicily, Italy). Both species are secondary-cavity nesters breeding in abandoned rural buildings where they form single-species or mixed-species colonies. By correlating reproductive success as a measure of fitness to conspecific and heterospecific nest at…

Evolutionary consequencesof social information use in birds

2017

Social interactions, at intra- and inter-specific levels, have been lately the focus of new perspectives in examining the role of information use within communities. Acquiring information can change individual and social phenotypes, with important implications on community structure and its evolution. At the same time, social behaviour, and the patterns of connections among individuals arising from social interactions, can be shaped by individual phenotypes, and ultimately influence the spread of information through communities. Thus, the fingerprint of the evolutionary consequences of information use can be detected in both the mechanisms that determine responses to information at the indi…

Intra- and inter-specific social selection of vigilance and defense phenotypes in breeding colonies of lesser kestrels and jackdaws

2012