Factors affecting first-year survival in Ross's geese / Stuart M. Slattery
Material type:
TextPublication details: Saskatoon, SK : University of Saskatchewan, 2000.Description: xiv, 182 leaves : ill. ; 29 cmSubject(s): Online resources: Abstract: Small-bodied herbivores have lower digestive efficiency compared to larger-bodied herbivores and so may be more sensitive to ecological factors that affect quality and quantity of food plants, and nutrient assimilation rates. Ross's Geese are small-bodied herbivores that nest colonially with Lesser Snow geese in aggregations and densities that sometimes exceed 600,000 birds and 7,500 birds/km2, respectively. These large aggregations on the nesting colony can result in high brood densities on foraging areas and, thus, competition for food,deterioration of foraging habitats, and high parasite transmission rates. These habitat-related effects of large populations may affect nutrition, growth and survival of young herbivores, particularly if food availability interacts with parasitism. I used a combination of vegetation collection, gosling dissections, and mark-recapture techniques to examine spatial patterns of herbivore-plant and herbivore-parasite interactions around a large nesting c
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Thesis(PhD)--University of Saskatchewan, 2000.
Includes bibliographical references (leaves 126-146).
Small-bodied herbivores have lower digestive efficiency compared to larger-bodied herbivores and so may be more sensitive to ecological factors that affect quality and quantity of food plants, and nutrient assimilation rates. Ross's Geese are small-bodied herbivores that nest colonially with Lesser Snow geese in aggregations and densities that sometimes exceed 600,000 birds and 7,500 birds/km2, respectively. These large aggregations on the nesting colony can result in high brood densities on foraging areas and, thus, competition for food,deterioration of foraging habitats, and high parasite transmission rates. These habitat-related effects of large populations may affect nutrition, growth and survival of young herbivores, particularly if food availability interacts with parasitism. I used a combination of vegetation collection, gosling dissections, and mark-recapture techniques to examine spatial patterns of herbivore-plant and herbivore-parasite interactions around a large nesting c