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000
| 02406cam 2200421za 4500 |
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| 001 | 9.856430 |
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| 003 | CaOODSP |
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| 005 | 20221107155528 |
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| 007 | cr ||||||||||| |
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| 008 | 180510s1989 nkcd ob f000 0 eng d |
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| 020 | |z0662173899 |
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| 022 | |z0831-6481 |
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| 040 | |aCaOODSP|beng |
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| 041 | |aeng|bfre |
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| 043 | |an-cn-nk |
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| 086 | 1 |aCW69-5/84E-PDF|zCW69-5/84E |
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| 100 | 1 |aParker, G. R. |
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| 245 | 10|aBreeding waterfowl, wetlands acidity and food resources in the Lepreau River watershed of southern New Brunswick |h[electronic resource] / |cG.R. Parker, M. Petrie, D. Sears. |
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| 260 | |aSackville, N.B. : |bCanadian Wildlife Service, Atlantic Region, |c1989. |
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| 300 | |avi, 37 p. : |bcharts. |
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| 490 | 1 |aTechnical report series ; |vno. 84 |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references (p. 14-17). |
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| 520 | 3 |a"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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| 530 | |aIssued also in print format. |
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| 546 | |aIncludes abstract in French. |
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| 693 | 4|aWaterfowl |
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| 693 | 4|aWaterfowl--Food |
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| 693 | 4|aWetlands |
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| 693 | 4|aWater quality |
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| 693 | 4|aLepreau River Watershed (N.B.) |
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| 700 | 1 |aPetrie, M. |
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| 700 | 1 |aSears, D. |
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| 710 | 1 |aCanada. |bEnvironment Canada. |
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| 710 | 2 |aCanadian Wildlife Service. |bAtlantic Region. |
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| 830 | #0|aTechnical report series (Canadian Wildlife Service)|vno. 84.|w(CaOODSP)9.504438 |
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| 856 | 40|qPDF|s18.47 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-84-eng.pdf |
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