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Document Type

Research

Keywords

American robin, reproductive biology, DDT, Iowa State University campus

Abstract

Reproductive biology of the American robin (Turdus migratorius Linnaeus) was studied on the Iowa State University campus during the spring and early summer of 1977. Although the robin breeding population was below that reported for similar habitats elsewhere, it was appreciably larger than during the late 1960's when a major reduction in number of breeding robins at Iowa State followed the use of DDT. Breeding robins, as indicated by number of nests, were more numerous in 1977 than in any year during the height of the Dutch elm disease control program, 1962-70. Basic reproduction parameters such as clutch size and hatching success were similar to those in the pre-DDT era suggesting that the robin population in 1977 had regained its pre-DDT level.

Publication Date

September 1978

Journal Title

Proceedings of the Iowa Academy of Science

Volume

85

Issue

3

First Page

91

Last Page

96

Copyright

© Copyright 1978 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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