Effects of refuge management practices on Canada geese wintering in southern Illinois / William E. Moritz and Thomas C. Tacha.
Material type:
TextPublication details: Carbondale, IL : 1992. Southern Illinois University,Description: xiv, 217 p. : ill. , maps ; 28 cmOnline resources: Abstract: Reductions in refuge energy abundance and accessibility were hypothesized to influence wintering Canada goose (Branta canadensis interior) a) physiological condition, b) numbers, c) habitat use, and/or d) time allocations on Union County and Horseshoe Lake refuges in southern Illinois, 1987-90. Manipulations of refuge corn harvest affected accessibility and reduced energy abundance on-refuge, although energy availability was greater than population energy needs during all seasons in all study years. Manipulations of habitat and food-energy accessibility did not affect physiological condition, numbers, or time allocations of geese.
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Includes bibliographical references (p. 203-209).
Reductions in refuge energy abundance and accessibility were hypothesized to influence wintering Canada goose (Branta canadensis interior) a) physiological condition, b) numbers, c) habitat use, and/or d) time allocations on Union County and Horseshoe Lake refuges in southern Illinois, 1987-90. Manipulations of refuge corn harvest affected accessibility and reduced energy abundance on-refuge, although energy availability was greater than population energy needs during all seasons in all study years. Manipulations of habitat and food-energy accessibility did not affect physiological condition, numbers, or time allocations of geese.