Determinants of breeding distributions of ducks:

Use is made of the results of surveys conducted annually during 1955-81 in major breeding areas to examine the factors that affect the distributions of 10 common North American duck species. Survey sites included those in Yukon, NWT, the Prairie provinces and Alaska.

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Johnson, Douglas H. (VerfasserIn), Grier, James W. (VerfasserIn)
Format: Buch
Sprache:English
Veröffentlicht: Bethesda, Md. Wildlife Soc. 1988
Schriftenreihe:Wildlife monographs 100
Schlagworte:
Zusammenfassung:Use is made of the results of surveys conducted annually during 1955-81 in major breeding areas to examine the factors that affect the distributions of 10 common North American duck species. Survey sites included those in Yukon, NWT, the Prairie provinces and Alaska.
Beschreibung:37 S. Kt.

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