Predation Rates on Real and Artificial Nests of Grassland Birds

Livestock grazing and trampling of birds’ nests: an experiment using artificial nests

The purpose of this study is to experimentally determine the differences between four grazing treatments on the trampling of nests. Additionally, we examine to what extent the trampling probability of nests is higher close to a source of fresh water. We compare the trampling of artificial nests in five different grazing treatments in an experimental design. We use buried clay pigeon targets as ...

Predation on Artificial Nests in Hurricane- Created Gaps and Adjacent Forest of the Southern Appalachians

Alxtruct: Predation rates were compared during three 7-day trials on 742 artificial ground nests located in 10 hurricane-created canopy gaps and IO adjacent closed-canopy controls in the southern Appalachian mountains of North Carolina. White northern bobwhite (Cdinus virginianus) eggs were used in trials 1 and 2, but brown-speckled Japanese Quail (Coturnix coturr~ix) eggs were used in trial 3 ...

The design and function of birds' nests

All birds construct nests in which to lay eggs and/or raise offspring. Traditionally, it was thought that natural selection and the requirement to minimize the risk of predation determined the design of completed nests. However, it is becoming increasingly apparent that sexual selection also influences nest design. This is an important development as while species such as bowerbirds build struc...

Suitability of artificial nests.

Variables Influencing Predation of Artificial Duck Nests in Northwest Coastal California

Nest predation can greatly affect reproductive success of waterfowl. We studied factors influencing duck-nest predation near Humboldt Bay in northern California by testing the prediction that measurements of nest concealment and nest location should differ between successful and depredated artificial nests. We ran a priori hypothesized logistic regression models to evaluate the effects of nest ...