Inter-individual differences in foraging tactics of a colonial raptor: consistency, weather effects, and fitness correlates.

ABSTRACT:

Background

Consistent inter-individual differences in behavioural phenotypes may entail differences in energy efficiency and expenditure, with different fitness payoffs. In colonial-breeding species, inter-individual differences in foraging behaviour may evolve to reduce resource use overlap among conspecifics exploiting shared foraging areas. Furthermore, individual differences in foraging behaviour may covary with individual characteristics, such as sex or physiological conditions.

Methods

We investigated individual differences in foraging tactics of a colonial raptor, the lesser kestrel (Falco naumanni). We tracked foraging trips of breeding individuals using miniaturized biologgers. We classified behaviours from GPS data and identified tactics at the foraging trip

SUBMITTER: Cecere JG 

PROVIDER: S-EPMC7313117 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature