TREMELY WIDELY ACCEPTED. A range of factors have been proposed to contribute to this
gradient, including the greater time since glaciation, the lack of freezing winters and a …

Nest structure is thought to provide benefits that have fitness consequences for several taxa.
Traditionally, reduced nest predation has been considered the primary benefit underlying …

Nest predation is the leading cause of nesting failure. Thus it is a crucial area of research
needed to inform conservation management and to understand the life history of birds. I …

Cavity-nesting vertebrates are an important component of biodiversity in tropical and
subtropical forests, but their persistence will increasingly depend on remnant trees in logged …

Altitudinal migration is a common and important but understudied behavior in birds. Difficulty
in characterizing avian altitudinal migration has prevented a comprehensive understanding …

Mountains hold much of the world's taxonomic diversity, but global climate change threatens
this diversity by altering the distributions of montane species. While numerous studies have …

Incubation is an important component of parental care in birds, and species differ widely in
their incubation rhythm. In this comparative study, we focused on factors responsible for …

An authoritative and entertaining exploration of Australia's distinctive birds and their
unheralded role in global evolution Renowned for its gallery of unusual mammals, Australia …

Aim Species interactions are assumed to be stronger closer to the equator. However,
numerous studies provided conflicting results and considerable controversy exists …

Body size evolution is generally framed by the benefits of being large, while costs are largely
overlooked. An important putative cost of being large is the need to extend development …