In migratory birds, early arrival on breeding sites is typically associated with greater
breeding success, but the mechanisms driving these benefits are rarely known. One …

Large‐scale multi‐species data on population changes of alpine or arctic species are
largely lacking. At the same time, climate change has been argued to cause poleward and …

The joint effects of interacting environmental factors on key demographic parameters can
exacerbate or mitigate the separate factors' effects on population dynamics. Given ongoing …

Variation in predator behavior has been proposed, but not tested, as a mechanism
producing seasonal declines in avian nest success. We test this hypothesis by documenting …

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 …

Behavioral and movement ecology of broods are among the most poorly understood
aspects of wild turkey (Meleagris gallopavo) reproductive ecology. Recent declines in wild …

In seasonal environments, fluctuating early‐season weather conditions and short breeding
windows limit reproductive opportunities such that breeding earlier or later than the optimum …

Seasonal declines in avian clutch size are well documented, but seasonal variation in other
reproductive parameters has received less attention. For example, the probability of …

Fragmentation and other habitat disturbances are long known to negatively affect birds, in
large part by decreasing nest success due to high nest predation rates. The factors …

Lewis's Woodpecker (Melanerpes lewis) has experienced population declines in both
Canada and the United States and in 2010 was assigned a national listing of threatened in …