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Effects of aldrin exposure on snow geese in Texas rice fields

Journal of Wildlife Management

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Abstract

In 1972 and 1974, 112 dead or moribund snow geese (Chen c. caerulescens), mostiy immature white-phase males, were found in a 'study area on the Garwood Prairie, Texas. Dying geese were observed within 2 days after rice fields planted with aldrin-treated seed were flooded by heavy tains6n 21 March 1972 and 25 March 1974. Brains from 8 snow geese that were moribund when found contained an average of 8.2 ppm (4.9-14.0 ppm) of dieldrin (a metabolite of aldrin); brains of 14 geese found dead contained an average of 14.1ppm (2.1-31 ppm). Because no mortalities occurred in 1973 when aldrin-treated rice seed was flooded after all geese had migrated or in 1975 and 1976 after the treatrnent of rice seed with aldrin was suspended, it appears certain that aldrin caused the mortalities.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Effects of aldrin exposure on snow geese in Texas rice fields
Series title:
Journal of Wildlife Management
Volume
43
Issue:
1
Year Published:
1979
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
94-101
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
94
Last page:
101
Number of Pages:
8