The evolution of different forms of sociality: behavioral mechanisms and eco-evolutionary feedback.

ABSTRACT: Different forms of sociality have evolved via unique evolutionary trajectories. However, it remains unknown to what extent trajectories of social evolution depend on the specific characteristics of different species. Our approach to studying such trajectories is to use evolutionary case-studies, so that we can investigate how grouping co-evolves with a multitude of individual characteristics. Here we focus on anti-predator vigilance and foraging. We use an individual-based model, where behavioral mechanisms are specified, and costs and benefits are not predefined. We show that evolutionary changes in grouping alter selection pressures on vigilance, and vice versa. This eco-evolutionary feedback generates an evolutionary progression from "leader-follower" societies to "fission-fusion" socie

SUBMITTER: van der Post DJ 

PROVIDER: S-EPMC4309640 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature