| Título: | Mallard Use of Hen HousesTM in Eastern Ontario |
| Autores: |
Zimmerling, J. Ryan; Bird Studies Canada; rzimmerling@bsc-eoc.org Fisher, Jim R; Delta Waterfowl Foundation; jfisher@deltawaterfowl.org Ankney, C. Davison; University of Western Ontario; cdankney@kwic.com Debruyne, Christine A; University of Canterbury; cad48@student.canterbury.ac.nz |
| Fecha: | 2006-06-26 |
| Publicador: | Avian Consevation & Ecology |
| Fuente: | |
| Tipo: |
Peer-Reviewed article |
| Tema: |
beaver pond; eastern Ontario; hen house; Mallard; Anas platyrhychos; nesting; occupancy; predation ; sewage lagoon |
| Descripción: | Nesting structures for ground-nesting waterfowl may be an effective technique for increasing nesting success in regions in which nest success is below the 15% threshold needed to maintain a stable population. We studied the occupancy rate of artificial nesting structures called hen housesTM by Mallards (Anas platyrhynchos) nesting in two different wetland habitats, beaver ponds and sewage lagoons, in eastern Ontario during 1999–2001. We hypothesized that, because natural cover was sparse on sewage lagoons, Mallards would occupy hen houses at a higher rate on sewage lagoons than on beaver ponds. However, of the 248 hen houses distributed between beaver ponds and sewage lagoons, none was occupied by waterfowl. Common Grackles (Quiscalus quiscula) were the only avian species that nested in hen houses. However, Mallards successfully nested directly under several structures (n = 6) when water levels were low enough to expose the ground beneath them. Mayfield daily nest survival estimates for Mallards nesting in natural cover were similar on sewage lagoons and beaver ponds for all years (mean = 0.99) and were higher than most published estimates. Factors such as nesting cover, predation pressures, and structure design and material may influence the use of artificial hen houses and should be considered when planning a hen house program outside of the Prairie Pothole Region. |
| Idioma: | Inglés |
1 Basic Science, Applied Science, and the Radical Middle Ground por Nudds, Thomas D; University of Guelph; tnudds@uoguelph.ca,Villard, Marc-André; Université de Moncton; villarm@UMoncton.CA | 6 Endangered Species, Provincialism, and a Continental Approach to Bird Conservation por Craig, Robert J; Bird Conservation Research, Inc.; mail@birdconservationresearch.org |
2 Mobile Incubation in Waved Albatross (Phoebastria irrorata): Associated Hatching Failure and Artificial Mitigation por Awkerman, Jill A; Wake Forest University; awkeja2@wfu.edu,Huyvaert, Kathryn P; Colorado State University; huyvaert@cnr.colostate.edu,Anderson, David J; Wake Forest University; da@wfu.edu | 7 Rediscovering the King of Woodpeckers: Exploring the Implications por Walters, Jeffrey R; Virginia Tech; jrwalt@vt.edu,Crist, Eileen L.; Virginia Tech; ecrist@vt.edu |
3 Stable Isotope Analysis Reveals That Agricultural Habitat Provides an Important Dietary Component for Nonbreeding Dunlin por Evans Ogden, Lesley Joan; University of British Columbia; lesleyje@interchange.ubc.ca,Hobson, Keith A; Canadian Wildlife Service; Keith.Hobson@EC.GC.CA,Lank, David B; Simon Fraser University; dlank@sfu.ca,Bittman, Shabtai; Agriculture and Agri-Food Canada; bittmans@agr.gc.ca | 8 Upland Nesting Prairie Shorebirds: Use of Managed Wetland Basins and Accuracy of Breeding Surveys por Gratto-Trevor, Cheri L.; Canadian Wildlife Service; cheri.gratto-trevor@ec.gc.ca |
4 Sea Surface Temperatures Mediated by the El Niño-Southern Oscillation Affect Birds Breeding in Temperate Coastal Rain Forests por Gaston, Anthony J; Canadian Wildlife Service; tony.gaston@ec.gc.ca,Martin, Jean-Louis; Centre National de Recherche Scientifique, Montpellier; ,Allombert, Sylvain; Centre National de Recherche Scientifique, Montpellier; | 9 Spatial Aggregation of Forest Songbird Territories and Possible Implications for Area Sensitivity por Bourque, Julie; ; julie.bourque@ec.gc.ca,Desrochers, André; Université Laval; andre.desrochers@sbf.ulaval.ca |
5 Scale and Sensitivity of Songbird Occurrence to Landscape Structure in a Harvested Boreal Forest por Taylor, Philip D; Acadia University; philip.taylor@acadiau.ca,Krawchuk, Meg A; University of Alberta; megk@ualberta.ca | 10 Identification of Summer Origins of Songbirds Migrating through Southern Canada in Autumn por Dunn, Erica H.; Environment Canada; Erica.Dunn@ec.gc.ca,Hobson, Keith A.; Environment Canada; Keith.Hobson@ec.gc.ca,Wassenaar, Len I.; Environment Canada; Len.Wassenaar@ec.gc.ca,Hussell, David J. T.; Ontario Ministry of Natural Resources; David.Hussell@mnr.gov.on.ca,Allen, Martha L.; Trent University; martha.allen@sympatico.ca |