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Article: Annual survival rates of female hooded mergansers and wood ducks in southeastern Missouri.
- Article from:
- Wilson Bulletin
- Article date:
- March 1, 1999
- Author:
CopyrightCOPYRIGHT 1999 Wilson Ornithological Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Estimates of annual survival are important for comparative studies of life-history strategies between species (Krementz et al. 1989) and for modeling population demographics for conservation and management. Annual survival rate estimates are available for certain geese (tribe Anserini) and dabbling ducks (tribe Anatini) traditionally important to hunters (Johnson et al. 1992). Except for the Common Eider (Somateria mollissima; Krementz et al. 1996), survival estimates based on modern survival estimation procedures are completely lacking for most seaducks (tribe Mergini), despite increased harvest pressure in recent years (U.S. Fish and Wild. Serv., unpubl. data).
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... ... training to observing wood ducks, and he maintains notebooks ... written observations of wood ducks impresses the experts ... knowledge and passion for wood ducks is incredible," said ... duck hens _ even female hooded mergansers _ will lay eggs in the ...
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