Winter habitat for dabbling ducks on southeastern Vancouver Island,British Columbia / Joan Eamer
Material type:
TextSeries: Thesis ; (M.Sc.)Publication details: Vancouver, BC : University of British Columbia, 1985.Description: ix, 103 leaves : ill. ; 28 cmSubject(s): Online resources: Abstract: This study is an examination of the use of coastal estuaries and nearby farmland as habitat by dabbling ducks (mallard and American widgeon)during migrating and wintering periods. Its aim was to identify aspects of British Columbia coastal habitat of importance to dabblers through an analysis of the ducks' movements among habitat types and through a description of where and on what ducks feed. Data were collected in 1979 and 1980 along a 30 km stretch of coastline on southeastern Vancouver Island. Results are presented in 3 parts. Part 1 examines the relative use of farm and coastal habitat through a series of censuses conducted weekly at 8 farm and 8 coastal sites. The strong negative correlation between counts at farm and coastal sites indicates that dabblers treat them as alternative habitats. The numbers of ducks on farms was positively correlated with the area of standing water on the fields.Farm habitat, apparently preferred during warm, wet weather, was not used when fields w
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Thesis(M.Sc.)--University of British Columbia, 1985.
"June 1985."
Includes bibliographical references (leaves 91-95).
This study is an examination of the use of coastal estuaries and nearby farmland as habitat by dabbling ducks (mallard and American widgeon)during migrating and wintering periods. Its aim was to identify aspects of British Columbia coastal habitat of importance to dabblers through an analysis of the ducks' movements among habitat types and through a description of where and on what ducks feed. Data were collected in 1979 and 1980 along a 30 km stretch of coastline on southeastern Vancouver Island. Results are presented in 3 parts. Part 1 examines the relative use of farm and coastal habitat through a series of censuses conducted weekly at 8 farm and 8 coastal sites. The strong negative correlation between counts at farm and coastal sites indicates that dabblers treat them as alternative habitats. The numbers of ducks on farms was positively correlated with the area of standing water on the fields.Farm habitat, apparently preferred during warm, wet weather, was not used when fields w