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.

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Renseignements sur la publication
Ministère/Organisme Canada. Environment Canada.
Canadian Wildlife Service. Atlantic Region.
Titre Breeding waterfowl, wetlands acidity and food resources in the Lepreau River watershed of southern New Brunswick / G.R. Parker, M. Petrie, D. Sears.
Titre de la série Technical report series ; no. 84
Type de publication Série - Voir l'enregistrement principal
Langue [Anglais]
Format Électronique
Document électronique
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.
Information sur la publication Sackville, N.B. : Canadian Wildlife Service, Atlantic Region, 1989.
Auteur / Contributeur Parker, G. R.
Petrie, M.
Sears, D.
Description vi, 37 p. : charts.
Numéro de catalogue
  • CW69-5/84E-PDF
Descripteurs Waterfowl
Waterfowl--Food
Wetlands
Water quality
Lepreau River Watershed (N.B.)
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