AVIS-IBIS

Birds of Indian Subcontinent

Distribution Patterns of Raptors in Relation to Density of Meadow Voles

Publication Type:Journal Article
Year of Publication:1981
Authors:Baker, JA, BROOKS, RONALDJ
Journal:The Condor
Volume:83
Issue:1
Date Published:1981
ISBN Number:00105422
Keywords:Accipitridae, Buteo, Buteo jamaicensis, Buteo lagopus, Lagopus
Abstract:Densities of overwintering Red-tailed Hawks (Buteo jamaicensis) and Rough-legged Hawks (Buteo lagopus) were examined in relation to densities of meadow voles (Microtus pennsylvanicus) on six habitat types. Generally, densities of both raptor species were greater in habitats that had higher densities of meadow voles. However, not all habitats with high numbers of voles had high numbers of the raptors. The amount and distribution of cover also appeared to influence the distribution of the raptors. Hence, patches that support high densities of prey may not be profitable foraging sites for predators because other factors may reduce availability of prey.
URL:http://www.jstor.org/stable/1367598
Short Title:The Condor
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith