Tara R. Robinson

TL;DR: It is concluded that nesting success in central Panama may be poor in most breeding seasons, but also may be punctuated by occasional years of relatively exceptional success, a possibility heretofore unappreciated because of a general paucity of data from the tropics.

TL;DR: Across 70 Neotropical bird species, the results suggest that, despite probably widespread differences in the intensity and diversity of pathogen exposure, species-level variation in constitutive immune defences is understandable within the context of life-history theory.

TL;DR: The results partly support the hypothesis that antioxidant levels evolve to mirror free radical production, and the complex patterns of physiological diversification observed here result from the interplay of many factors, likely including not just investment in somatic maintenance but also phylogenetic constraint, diet, and other aspects of ecology.

TL;DR: The Panama Canal is a major shipping corridor, transporting 37 ships a day and providing substantial income to the Panamanian government as discussed by the authors, and it sits in the center of one of the world's most biologically diverse areas (Myers et al. 2000).

TL;DR: The high percentage of nests lost to snakes is inconsistent with the hypothesis that unusually high mammal populations on Barro Colorado Island are responsible for high levels of nest predation and local extinctions of understory bird species.