Régions: Inuvialuit Settlement Region
étiquettes: biology, birds, animal behaviour, foraging, reproduction, waterfowl, predators, survivability
| chercheur principal: | Armstrong, Terry (8) |
| Nᵒ de permis: | 12383 |
| Organisation: | University of Saskatchewan |
| Année(s) de permis: |
1993
1992
1991
|
| Délivré: | janv. 01, 1993 |
| Équipe de projet: | one field assistant to be determined |
Objectif(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. While jaegers may be important predators, their low numbers make it very difficult to collect sufficient data to draw firm conclusions about their behaviour.
Description du projet: This ongoing study will involve observing glaucous gulls as they prey on nests of black brant and lesser snow geese. I will attempt to determine why the gulls seem to be more successful when attacking the nests of brant than those of snow geese. I will examine the feeding behaviour of the gulls and the defense behaviour of the geese. I will also examine the nesting success and clutch sizes of brant and snow geese.
