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 |
|
|---|---|
| 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 |
|
| Publication type | Monograph - View Master Record |
| Language | [English] |
| Format | Digital text |
| Electronic document | |
| Note(s) |
|
| Publishing information |
|
| Author / Contributor |
|
| Description | vi, 37 p. : charts. |
| Catalogue number |
|
| Subject terms |
Request alternate formats
To request an alternate format of a publication, complete the Government of Canada Publications email form. Use the form’s “question or comment” field to specify the requested publication.Page details
- Date modified: