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An evaluation of regression methods to estimate nutritional condition of canvasbacks and other water birds

Biological Report 3

4345_Sparling.pdf
By:
, , , and

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Abstract

Regression equations that use mensural data to estimate body condition have been developed for several water birds. These equations often have been based on data that represent different sexes, age classes, or seasons, without being adequately tested for intergroup differences. We used proximate carcass analysis of 538 adult and juvenile canvasbacks (Aythya valisineria ) collected during fall migration, winter, and spring migrations in 1975-76 and 1982-85 to test regression methods for estimating body condition.

Additional Publication Details

Publication type:
Report
Publication Subtype:
Federal Government Series
Title:
An evaluation of regression methods to estimate nutritional condition of canvasbacks and other water birds
Series title:
Biological Report
Series number:
3
Year Published:
1992
Language:
English
Publisher:
U.S. Fish and Wildlife Service
Contributing office(s):
Patuxent Wildlife Research Center
Description:
iii, 11