Biotic interactions are believed to play a role in the origin and maintenance of species
diversity, and multiple hypotheses link the latitudinal diversity gradient to a presumed …

A latitudinal gradient in biodiversity has existed since before the time of the dinosaurs, yet
how and why this gradient arose remains unresolved. Here we review two major hypotheses …

Behavioral Ecology of Tropical Birds, Second Edition provides the most updated and
comprehensive review on the evolution of behavior in tropical landbirds. The book reviews …

Fitness results from an optimal balance between survival, mating success and fecundity. The
interactions between these three components of fitness vary depending on the selective …

Animals need to adjust reproductive decisions to environmental seasonality. In contrast to
species from the well-studied temperate zones, little is known for tropical birds about the …

Tropical wet forests are commonly perceived as stable and constant environments.
However, many rain forest organisms reproduce seasonally. To understand the proximate …

Avian insectivores of the tropical rainforest understory (“understory insectivores”) are
common, diverse, and often sensitive to disturbance of tropical forest, making them useful as …

Testosterone (T) regulates avian behaviors such as song and aggression during the
breeding season. However, the role of T in year-round territorial birds is still enigmatic …

Life‐history traits in birds, such as lifespan, age at maturity, and rate of reproduction, vary
across environments and in combinations imposed by trade‐offs and limitations of …

Ecologists have long hypothesized that fragmentation of tropical landscapes reduces avian
nest success. However, this hypothesis has not been rigorously assessed because of the …