Document Type

Article

Publication Title

American Naturalist

Publication Date

8-1996

Volume

148

Issue

2

Disciplines

Biology | Life Sciences

DOI

10.1086/285931

Comments

© 1996, University of Chicago Press. View original published version at 10.1086/285931.

Rights

© 1996, University of Chicago Press. View original published article at 10.1086/285931.

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