Factors influencing the occurrence and distribution of waterfowl crop damage in the Aspen Parkland / A. Alan Arsenault
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TextPublication details: Saskatoon, SK : University of Saskatchewan, 1994.Description: xi, 94 leaves : ill. ; 28 cmSubject(s): Online resources: Abstract: The purpose of this study was to examine the effects of waterfowl populations, crop vulnerability, harvest chronology, and habitat structure on the occurrence and distribution of local crop damage by migratory waterfowl in the aspen parklands near Saskatoon, Saskatchewan,in 1991 and 1992. This study was unique in linking the timing of harvest with migration pattern, and in finding that waterfowl populations can effect the occurence and distribution of damage at the local level.However, it is crop vulnerability (days in swath) and proximity to staging wetlands that have the strongest effect on the occurence and distribution of local crop damage. When waterfowl migration is synchronous with a protracted harvest season and large areas of vulnerable crop, the occurrence and distribution of crop damage is greater. Damaged fields were swathed earlier, and laid in swath longer than undamaged fields. Crops, particularly wheat, were more likely to be damaged in fields located closer to stagi
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Thesis(M.Sc.)--University of Saskatchewan, 1994.
Includes bibliographical references (p. 82-87).
The purpose of this study was to examine the effects of waterfowl populations, crop vulnerability, harvest chronology, and habitat structure on the occurrence and distribution of local crop damage by migratory waterfowl in the aspen parklands near Saskatoon, Saskatchewan,in 1991 and 1992. This study was unique in linking the timing of harvest with migration pattern, and in finding that waterfowl populations can effect the occurence and distribution of damage at the local level.However, it is crop vulnerability (days in swath) and proximity to staging wetlands that have the strongest effect on the occurence and distribution of local crop damage. When waterfowl migration is synchronous with a protracted harvest season and large areas of vulnerable crop, the occurrence and distribution of crop damage is greater. Damaged fields were swathed earlier, and laid in swath longer than undamaged fields. Crops, particularly wheat, were more likely to be damaged in fields located closer to stagi