Aerial insectivores (birds that forage on aerial insects) have experienced significant
population declines in North America. Numerous hypotheses have been proposed for these …

As species shift their ranges and phenology to cope with climate change, many are left
without a ready supply of their preferred food source during critical life stages. Food …

Migratory bird species that feed on air-borne insects are experiencing widespread regional
declines, but these remain poorly understood. Agricultural intensification in the breeding …

Glucocorticoid hormones are important regulators of metabolic processes, and of the
behavioral and physiological responses to stressors. Within-population variation in …

Determining how migratory animals are spatially connected between breeding and non‐
breeding periods is essential for predicting the effects of environmental change and for …

Abstract Changes to weather patterns under a warming climate are complex: while warmer
temperatures are expected virtually worldwide, decreased mean precipitation is expected at …

Nest boxes have grown in popularity as a habitat management tool in Australia during the
last decade. This management use remains contentious because some studies suggest nest …

Climate change can drive population declines for many species, often through changes to
their food supply. These changes can involve a mis‐timing between periods of high food …

Climate change predicts the increased frequency, duration, and intensity of inclement
weather periods such as unseasonably low temperatures (ie, cold snaps) and prolonged …

For organisms in seasonal environments, individuals that breed earlier in the season
regularly attain higher fitness than their late‐breeding counterparts. Two primary hypotheses …