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Science 12 March 1982:
Vol. 215. no. 4538, pp. 1405 - 1407
DOI: 10.1126/science.215.4538.1405
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Articles

Intraspecific Vertical Stratification as a Mate-Finding Mechanism in Tropical Cockroaches

COBY SCHAL 1

1 Department of Entomology, University of Kansas, Lawrence 66045

Cockroaches in a tropical forest stratify vertically both inter- and intraspecifically along micrometeorological gradients. At night, low wind speeds and unstable atmospheric conditions result in efficient vertical mixing of the air near the ground. Convective ascent of warm air imparts directionality to the pheromone- dispersion process. The occurrence of males at greater heights than pheromone- emitting conspecific females appears to be a mate-finding strategy.

Submitted on July 17, 1981
Revised on October 16, 1981


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Ecological Correlates of Paternal Investment of Urates in a Tropical Cockroach.
C. SCHAL and W. J. BELL (1982)
Science 218, 170-173
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Science. ISSN 0036-8075 (print), 1095-9203 (online)