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Historical changes in laying date, clutch size, and nest success of American black ducks

Journal of Wildlife Management

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Abstract

The breeding population of American black ducks (Anas rubripes ) on Chesapeake Bay has declined over the past 30 years. We tested whether there have been changes in laying date, clutch size, and nest success of breeding black ducks on islands in Chesapeake Bay between the 1950's and 1980's. None of these variables differed significantly between decades, suggesting that other factors must be responsible for the decline in locally breeding black ducks.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Historical changes in laying date, clutch size, and nest success of American black ducks
Series title:
Journal of Wildlife Management
Volume
55
Issue:
3
Year Published:
1991
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
462-466
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Wildlife Management
First page:
462
Last page:
466