Computer-aided procedure for counting waterfowl on aerial photographs

Wildlife Society Bulletin
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Examination of 46 Canada goose goslings yielded 14 species of parasites, including five Protozoa, four Nematoda, two Cestoda, and three Trematoda. Evidence indicates that goslings acquired most of these infections during their first week of life. Some parasites, Prosthogonimus sp., occurred only in younger birds. Others, Leucocytozoon simondi, were evident only during the initial course of infection, while still others remained evident in older geese. Parasites with a direct life cycle appeared to be more prevalent than those requiring intermediate hosts. Among 29 birds from a refuge in Michigan, 14 species of parasites were found; while in 17 goslings from a Utah refuge, only five species occurred.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Computer-aided procedure for counting waterfowl on aerial photographs
Series title Wildlife Society Bulletin
Volume 18
Issue 2
Year Published 1990
Language English
Publisher U.S. Fish and Wildlife Service
Contributing office(s) Alaska Biological Science Center
Description pp. 125-129
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Wildlife Society Bulletin
First page 125
Last page 129
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