The Role of Predation in Nesting Success of Black Brant and Lesser Snow Geese

Regions: Inuvialuit Settlement Region

Tags: biology, birds, reproduction, foraging, predators, nesting

Principal Investigator: Armstrong, Terry (8)
Licence Number: 12118
Organization: Department of Biology, University of Saskatchewan
Licenced Year(s): 1993 1992 1991
Issued: Jan 01, 1992
Project Team: one field assistant

Objective(s): To determine the importance of gull and jaeger predation to the nesting success of brant and snow geese at Anderson River; to test the importance of colonial nesting by geese as an antipredator strategy; to determine why snow geese are less susceptible to avian predators; to study the foraging strategies of glaucous gulls that nest amongst the geese at Anderson River.

Project Description: This study will entail observing glaucous gulls as they prey on nesting black brant and lesser snow geese. The researcher will attempt to determine why the gulls seem to be more successful when attacking brant nests than snow geese. No birds will be killed or removed during this study.