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"Nonadaptive" Hilltopping Behavior in Male Checkerspot Butterflies (Euphydryas editha)
Paul R. Ehrlich and Darryl Wheye
The American Naturalist
Vol. 127, No. 4 (Apr., 1986), pp. 477-483
Stable URL: http://www.jstor.org/stable/2461577
Page Count: 7
You can always find the topics here!Topics: Mating behavior, Population estimates, Dyes, Aggregation, Butterflies, Female animals, Mark release recapture, Population density, Species, Virgin females
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A fluorescent-dye technique permitted the mating success of male checkerspot butterflies aggregating on a ridge to be compared with that of males on the slope below. Unexpectedly, the males on the ridge had about one-half the mating success of those on the slope. We suggest that formation of this and some other hilltopping aggregations is a "nonadaptive" consequence of otherwise adaptive behavior.
The American Naturalist © 1986 The University of Chicago Press