Comparative duckling survival, wetland selection, and brood ecology of gadwall (Anas strepera) and mallard (Anas platyrhynchos) / Michel Gendron.
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TextPublication details: Saskatoon, SK : 1999. University of Saskatchewan,Description: xi, 108 leaves : ill. ; 29 cmOnline resources: Abstract: Modeling of waterfowl population dynamics clearly reveals that population fluctuations are driven primarily by variation in nesting success and survival of ducklings, yet, until recently, remarkably few studies had focused on pre-fledging survival of ducks. Futhermore,numerous hypotheses have been proposed to explain variation in duckling survival, but most investigations have only dealt with mallard (Anas platyrhynchos), neglecting most other species. The principal objective of this study was to simultaneously evaluate factors affecting survival of mallard and gadwall (Anas strepera) ducklings.
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Thesis(M.S.)--University of Saskatchewan, 1999.
Includes bibliographical references (leaves 94-108).
Modeling of waterfowl population dynamics clearly reveals that population fluctuations are driven primarily by variation in nesting success and survival of ducklings, yet, until recently, remarkably few studies had focused on pre-fledging survival of ducks. Futhermore,numerous hypotheses have been proposed to explain variation in duckling survival, but most investigations have only dealt with mallard (Anas platyrhynchos), neglecting most other species. The principal objective of this study was to simultaneously evaluate factors affecting survival of mallard and gadwall (Anas strepera) ducklings.