Factors influencing use of small rock islands as nesting sites by Canada geese - a multivariate spatial approach / Dennis E. Jelinski
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TextPublication details: Brandon, MB : Brandon University, 1981.Description: v, 30 leaves ; 28 cmOnline resources: Abstract: Small rock islands (<40 m2) in wetland basins were investigated as potential nesting sites for Canada geese. Thirty-one percent of the rock islands were used for nesting and nest success was 76 percent. Known desertion accounted for 7% of the losses and predation may have been as high as 17%. A series of independant variables was measured at each site to isolate characteristics of islands used from islands not used as nesting sites by Canada geese. Variables were: distance of island from shore, distance to nearest island, distance to nearest active island,size of island at waterline, size of nesting area, height of island above water, depth of water at island, maximum depth to shore, and presence of nest material. Characteristics of the basins in which islands occurred were also measured to identify their possible influence in selection of islands as nest sites. Included were: basin size,shoreline distance, basin configuration, number of islands, and density of islands. Discriminant
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Thesis(B.Sc.)--Brandon University, 1981.
Includes bibliographical references (leaves 27-30).
Small rock islands (<40 m2) in wetland basins were investigated as potential nesting sites for Canada geese. Thirty-one percent of the rock islands were used for nesting and nest success was 76 percent. Known desertion accounted for 7% of the losses and predation may have been as high as 17%. A series of independant variables was measured at each site to isolate characteristics of islands used from islands not used as nesting sites by Canada geese. Variables were: distance of island from shore, distance to nearest island, distance to nearest active island,size of island at waterline, size of nesting area, height of island above water, depth of water at island, maximum depth to shore, and presence of nest material. Characteristics of the basins in which islands occurred were also measured to identify their possible influence in selection of islands as nest sites. Included were: basin size,shoreline distance, basin configuration, number of islands, and density of islands. Discriminant