The diet of nesting ospreys, Pandion haliaetus, in Labrador

Autor: Chubbs, Tony E., Trimper, Perry G.
Zdroj: Canadian Field-Naturalist; Jul/Sep1998, Vol. 112 Issue 3, p502, 0p
Abstrakt: We examined the diet of nesting Ospreys (Pandion haliaetus) along the Naskaupi River in Labrador during 1995 and 1996. Observations of Ospreys feeding on identifiable prey species provided an indication of available food supply and summer diet for this population. Mammals and birds may constitute important food sources. Prey consumption dropped from 7.5% and 5.0% for mammals and birds, respectively, in 1995 to0% in 1996, coinciding with a regional crash in the small mammal population. Inclement weather during 1996 also may have been a factor inlowering productivity. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index