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Blood lead concentrations in mallards from Delevan and Colusa National Wildlife Refuges

California Fish and Game

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Abstract

Blood samples were taken from 181 (108 adult drakes and 73 individuals of mixed age and sex) mallards, Anas platyrhynchos , from Colusa and Delevan National Wildlife Refuges during late winter and summer of 1987. The percentage of birds with elevated lead concentration was 28.7 for late winter and 16.4 for late summer. For summer trapped birds, a significantly greater proportion of males than females contained elevated lead levels. These findings indicate that lead poisoning may be a year-round event in certain areas of the Sacramento Valley.

Study Area

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Blood lead concentrations in mallards from Delevan and Colusa National Wildlife Refuges
Series title:
California Fish and Game
Volume
76
Issue:
3
Year Published:
1990
Language:
English
Publisher:
California Department of Fish and Game
Contributing office(s):
National Wildlife Health Center
Description:
5 p.
First page:
132
Last page:
136
Country:
United States
State:
California
Other Geospatial:
Colusa and Delevan National Wildlife Refuges
Online Only (Y/N):
N
Additional Online Files(Y/N):
N