Variation in mallard home range size and composition in the prairie parkland region of Canada : correlates and consequences for breeding females / Glenn G. Mack
Material type:
TextPublication details: Saskatoon, SK : University of Saskatchewan, 2003.Description: xiii, 70 leaves : ill. ; 29 cmSubject(s): Online resources: Abstract: Wetland density is believed to be an important determinant of home range size variation in mallards (Anas platyrhynchos), but hypothesized effects of upland habitat and female egg size and age have not been adequately evaluated. Thus, I investigated correlates and consequences of home range size variation using radio-tracking data for 131 female mallards studied on 12 Canadian prairie parkland sites, 1995-1998. Home range size and habitat composition varied within and among study areas;overall, home range size variation was best modeled to include effects of seasonal and semi-permanent wetlands and wood-shrub habitat. Contrary to predictions, I obtained no support for a positive association between home range size and female body size or a negative relationship between home range size and female age. After controlling effects of wetland density, mean home range sizes were larger on study areas with lower mallard breeding pair densities. I suspect that individual home ranges were smal
| Item type | Current library | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Electronic Report
|
Electronic Library | Non-fiction | MAC (Browse shelf(Opens below)) | Available | 5203 |
Thesis(M.Sc.)--University of Saskatchewan, 2003.
Includes bibliographical references (leaves 58-67).
Wetland density is believed to be an important determinant of home range size variation in mallards (Anas platyrhynchos), but hypothesized effects of upland habitat and female egg size and age have not been adequately evaluated. Thus, I investigated correlates and consequences of home range size variation using radio-tracking data for 131 female mallards studied on 12 Canadian prairie parkland sites, 1995-1998. Home range size and habitat composition varied within and among study areas;overall, home range size variation was best modeled to include effects of seasonal and semi-permanent wetlands and wood-shrub habitat. Contrary to predictions, I obtained no support for a positive association between home range size and female body size or a negative relationship between home range size and female age. After controlling effects of wetland density, mean home range sizes were larger on study areas with lower mallard breeding pair densities. I suspect that individual home ranges were smal