Most parent birds face the decision of whether to spend time and energy caring for their
offspring or to conserve their resources to survive and breed later. Should a parent care for …

Patterns of habitat use in animals presumably have evolved in response to diverse selective
processes, so we first examined whether the theory of natural selection formed the …

Life-history theory predicts that differences in reproductive effort and residual reproductive
value among species should result in differences in the level of risk that parents are willing …

Common Eider colonies often are subjected to human visitors, such as down collectors,
recreationists and researchers. However, the effects of frequency and timing of disturbance …

Over the last century, expanding urbanization has led to a strong increase in the levels of
background noise. This noise pollution has been shown to negatively affect wildlife (eg …

Aerial drones are increasingly being used as tools for ecological research and wildlife
monitoring in hard-to-access study systems, such as in studies of colonial-nesting birds …

Droughts are expected to increase in frequency and severity with climate change.
Population impacts of such harsh environmental events are theorized to vary with life history …

Predation may drive differential selection among personality types, but the mechanism
linking personality with predation risk is poorly understood. One such mechanism may be …

Nest survival may vary throughout the breeding season for many bird species, and the
nature of this temporal variation can reveal the links between birds, their predators, and …

In the Prairie Pothole Region, high predation rates often reduce duck nest success below
the 15-20% deemed necessary for population stability. Lethal removal of mammalian …