According to behavioural ecology theory, sociality evolves when the net benefits of close
association with conspecifics exceed the costs. The nature and relative magnitude of the …

(Invited Article) Abstract Sexual size dimorphism (SSD) is widespread and variable among
animals. According to the differential equilibrium model, SSD in a given species is expected …

Why do males and females frequently differ so markedly in body size and morphology? Sex,
Size, and Gender Roles is the first book to investigate the genetic, developmental, and …

We develop statistical methods for phylogenetic logistic regression in which the dependent
variable is binary (0 or 1) and values are nonindependent among species, with …

Over the past two decades, comparative biological analyses have undergone profound
changes with the incorporation of rigorous evolutionary perspectives and phylogenetic …

It is commonly argued that sexual size dimorphism (SSD) in lizards has evolved in response
to two primary, nonexclusive processes:(1) sexual selection for large male size, which …

The spatial scale of animal space use, eg measured as individual home range size, is a key
trait with important implications for ecological and evolutionary processes as well as …

Behavior is a way for organisms to respond flexibly to the environmental conditions they
encounter. Our own species exhibits large behavioral flexibility and occurs in all terrestrial …

Is the cost of reproduction different between males and females? On the one hand, males
typically compete intensely for mates, thus sexual selection theory predicts higher cost of …

As the brain is responsible for managing an individual's behavioral response to its
environment, we should expect that large relative brain size is an evolutionary response to …