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Long term Changes in the Relative Abundances of Birds in Kings Park, Perth, Western Australia

Long term Changes in the Relative Abundances of Birds in Kings Park, Perth, Western Australia Abstract. D. L. Serventy censused birds in Kings Park, Perth, between 1928 and 1937 and again between 1952 and 1955. Abundance was estimated by the frequency with which species were detected on censuses. The counts were repeated in 1986 by H. F. Recher. A total of 44 species were recorded during censuses. Since the first counts, were made, 14 species decreased in abundance by more than 15%, and 9 species went locally extinct. Eleven species increased in abundance by more than 20% (5 by more than 50%), and the abundance of 19 remained unchanged (frequency of occurrence changed by less than 15%). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Conservation Biology Wiley

Long term Changes in the Relative Abundances of Birds in Kings Park, Perth, Western Australia

Conservation Biology , Volume 5 (1) – Mar 1, 1991

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References (17)

Publisher
Wiley
Copyright
"Copyright © 1991 Wiley Subscription Services, Inc., A Wiley Company"
ISSN
0888-8892
eISSN
1523-1739
DOI
10.1111/j.1523-1739.1991.tb00391.x
Publisher site
See Article on Publisher Site

Abstract

Abstract. D. L. Serventy censused birds in Kings Park, Perth, between 1928 and 1937 and again between 1952 and 1955. Abundance was estimated by the frequency with which species were detected on censuses. The counts were repeated in 1986 by H. F. Recher. A total of 44 species were recorded during censuses. Since the first counts, were made, 14 species decreased in abundance by more than 15%, and 9 species went locally extinct. Eleven species increased in abundance by more than 20% (5 by more than 50%), and the abundance of 19 remained unchanged (frequency of occurrence changed by less than 15%).

Journal

Conservation BiologyWiley

Published: Mar 1, 1991

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