Breeding waterfowl, wetlands acidity and food resources in the Lepreau River watershed of southern New Brunswick / G.R. Parker, M. Petrie, D. Sears.: CW69-5/84E-PDF
"Species richness and density of waterfowl breeding on wetlands in forested habitat in southern New Brunswick were considerably lower than on more productive and abundant wetlands in similar habitat in Ontario. The Black Duck (Anas rubripes) and Ring-necked Duck (Aythya collaris) represented 60-70% of total breeding waterfowl. The abundance of aquatic invertebrates most influenced use of wetlands by broods of dabbling ducks. Moderately acidified wetlands caused changes in species composition of the invertebrate fauna but not total biomass. The presence and abundance of fish as a direct competitor for macro invertebrates significantly influenced wetland use by broods of insectivorous waterfowl. We did not identify water acidity as affecting directly the survival of insectivorous waterfowl broods or ducklings"--Abstract, p. i.
Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.856430&sl=0
| Department/Agency | Canada. Environment Canada. Canadian Wildlife Service. Atlantic Region. |
|---|---|
| Title | Breeding waterfowl, wetlands acidity and food resources in the Lepreau River watershed of southern New Brunswick / G.R. Parker, M. Petrie, D. Sears. |
| Series title | Technical report series ; no. 84 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (p. 14-17). Issued also in print format. Includes abstract in French. |
| Publishing information | Sackville, N.B. : Canadian Wildlife Service, Atlantic Region, 1989. |
| Author / Contributor | Parker, G. R. Petrie, M. Sears, D. |
| Description | vi, 37 p. : charts. |
| Catalogue number |
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| Subject terms | Waterfowl Waterfowl--Food Wetlands Water quality Lepreau River Watershed (N.B.) |