The foraging behavior of Lesser Snow Geese and Ross's Geese on La Perouse Bay / Barbara Pezzanite.
Material type:
TextSeries: Thesis. (Ph.D.)Publication details: New York, NY : The City University of New York, 2003.Description: xxi, 162 p. : ill. ; map ; 28 cmSubject(s): Online resources: Abstract: Two behavioral studies wree conducte on La Perouse Bay's intertidal feeding flats to determine: 1) long-term changes in foraging behavior of breeding lesser snow geese coincident with over 20 years of degrading habitat conditions, and 2) differences in foraging behavior of breeding lesser snow geese and Ross's geese on this degraded habitat. Data were collected from June to August, using focal animal protocols. The first study utilized foraging data collected in 1980, 1984, 1985, 1988 to 1990, and 1998 to 2000. The second study examined foraging by lesser snow geese and Ross's geese during the 1999 brood rearing period.Coincident with habitat degradation from 1980 to 2000, the pecking rates of adult female snow geese increased from 168 to 204 pecks per minute.Time spent searching for food increased 7% in males and 12% in females.In contrast, snow goose goslings spent 12% less time feeding than in earlier years. From 1984 to 1998, the mass of gosling snow geese declined approximatel
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Includes bibliographical references.
Two behavioral studies wree conducte on La Perouse Bay's intertidal feeding flats to determine: 1) long-term changes in foraging behavior of breeding lesser snow geese coincident with over 20 years of degrading habitat conditions, and 2) differences in foraging behavior of breeding lesser snow geese and Ross's geese on this degraded habitat. Data were collected from June to August, using focal animal protocols. The first study utilized foraging data collected in 1980, 1984, 1985, 1988 to 1990, and 1998 to 2000. The second study examined foraging by lesser snow geese and Ross's geese during the 1999 brood rearing period.Coincident with habitat degradation from 1980 to 2000, the pecking rates of adult female snow geese increased from 168 to 204 pecks per minute.Time spent searching for food increased 7% in males and 12% in females.In contrast, snow goose goslings spent 12% less time feeding than in earlier years. From 1984 to 1998, the mass of gosling snow geese declined approximatel