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Behavioral Diversity as Biological Diversity: Introduced Cats and Lava Lizard Wariness

Behavioral Diversity as Biological Diversity: Introduced Cats and Lava Lizard Wariness HEIDI M. SNELL Science Applications International Corporation 2109 Air Park Road SE Albuquerque, NM 87106, U.SA. Introduction Exotic predators have decimated island populations of birds and reptiles worldwide (Iverson 1978; Snell et al. 1984; Kirkpatrick & Rauzon 1986; Steadman 1986; Cruz & Cruz 1987; Fritts 1988; Case & Bolger 1991 ). Because of the high degree of endemism on islands, extinction of native species on islands represents an important reduction in biological diversity. This p a p e r addresses a m o r e subtle and perhaps overlooked c o m p o n e n t of biological diversity, behavioral diversity. Behavioral diversity is reduced w h e n organisms delete evolved behaviors from their behavioral repertoire. Like rare species, rare behaviors are m o r e susceptible to elimination than are widespread behaviors; therefore it is important to preserve rare behaviors. To the extent that behavior is genetically based, a reduction in behavioral diversity is also a reduction in genetic diversity. Animals on islands are often extraordinarily tame relative to animals on continents. Any threat to this unPaper subraitted January 5, 1993; revised manuscrfpt accepted August 3, 1993. usual tameness should be viewed as a http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Conservation Biology Wiley

Behavioral Diversity as Biological Diversity: Introduced Cats and Lava Lizard Wariness

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Publisher
Wiley
Copyright
Copyright © 1994 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0888-8892
eISSN
1523-1739
DOI
10.1046/j.1523-1739.1994.08020569.x
Publisher site
See Article on Publisher Site

Abstract

HEIDI M. SNELL Science Applications International Corporation 2109 Air Park Road SE Albuquerque, NM 87106, U.SA. Introduction Exotic predators have decimated island populations of birds and reptiles worldwide (Iverson 1978; Snell et al. 1984; Kirkpatrick & Rauzon 1986; Steadman 1986; Cruz & Cruz 1987; Fritts 1988; Case & Bolger 1991 ). Because of the high degree of endemism on islands, extinction of native species on islands represents an important reduction in biological diversity. This p a p e r addresses a m o r e subtle and perhaps overlooked c o m p o n e n t of biological diversity, behavioral diversity. Behavioral diversity is reduced w h e n organisms delete evolved behaviors from their behavioral repertoire. Like rare species, rare behaviors are m o r e susceptible to elimination than are widespread behaviors; therefore it is important to preserve rare behaviors. To the extent that behavior is genetically based, a reduction in behavioral diversity is also a reduction in genetic diversity. Animals on islands are often extraordinarily tame relative to animals on continents. Any threat to this unPaper subraitted January 5, 1993; revised manuscrfpt accepted August 3, 1993. usual tameness should be viewed as a

Journal

Conservation Biology – Wiley

Published: Jun 1, 1994

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