Concepts

The study of reproductive behaviors, nesting habitat selection, and breeding success in bird populations

Environmental processes that filter trait values admitted by changing abiotic and biotic conditions, maintaining trait distributions through phenotypic plasticity and local adaptation

Territorial behavior including alarm and warning calls to protect midden from squirrels and other mammals, with territories ranging from 0.5 to 1 hectares defended through vocalizations and chasing

Theory suggesting that offspring sex ratios might vary according to maternal condition, hence females should vary the sex of their offspring according to their ability to physically invest in their of...

Reduction in population growth rates, size, or occurrence across species ranges

Theory that animals distribute themselves among habitat patches in proportion to resource availability, with high-quality patches becoming occupied first and animals moving to lower-quality patches as...

The principle asserting an inverse relationship between local population density and average metabolic rate of individuals in a species