Artificial nest experiments have been used in approximately 80 recent studies to identify a
wide range of factors influencing reproductive success of birds. Despite the same factors …

Corvids are often viewed as efficient predators capable of limiting prey species populations.
Despite this widely held belief, a comprehensive review quantifying the effect of corvids on …

To learn about the behavior and ecology of nesting birds, we often study them when they
occupy nesting territories. But by visiting territories or nests, the investigator may to a greater …

Predation on birds' nests is commonly considered as a major factor reducing the production
of young (Lack 1954, Ricklefs 1969). Recent studies of ground-nesting birds stress the …

Heritable reproductive strategies that yield the greatest lifetime production of surviving
offspring are favored by natural selection. I consider a reproductive strategy to be the …

All landscapes are mosaics of habitat patches of different types (Forman and Godron, 1981).
Therefore, there will always be edges between habitat patches in a landscape. These …

Humans, being visually oriented, are well versed in camouflage and how animals hide from
predators that use vision to locate prey. However, many predators do not hunt by sight; they …

This study examined predator faunas of artificial ground and shrub nests and whether nest
predation risk was influenced by nest site, proximity to forest edge, and habitat structure in …

Many prairie duck populations have declined as drought and human impacts have reduced
breeding habitat and, possibly, rates of nest success and annual survival (Smith 1971 …

A low abundance of predators has been considered an important factor influencing a
number of ecological phenomena in urban environments including, in particular, the high …