Modelling the emergence and stability of a vertically transmitted cultural trait in bottlenose dolphins
An apparently vertically, socially transmitted foraging specialization (‘sponging’) in bottlenose dolphins (Tursiops sp.) is observed in two adjacent gulfs within Shark Bay, Western Australia, where sponging has possibly spread from independent innovations. We designed an individual-based model based on empirical data, to investigate the conditions (of learning fidelity and fitness benefits for spongers) under which […]
Fitness consequences of sibling egg cannibalism by neonates of the Colorado potato beetle, Leptinotarsa decemlineata
Egg cannibalism is a widely observed behaviour in nature that provides nutritional benefits without the costs of subduing prey. However, when egg cannibalism involves sibling eggs, the benefits obtained must balance inclusive fitness losses. Neonates of the Colorado potato beetle, Leptinotarsa decemlineata, readily consume other eggs within their natal clutch. To explore the fitness consequences […]