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Relationship of Aphid Density to Altitude

Nature volume 168, pages 337–338 (1951)Cite this article

Abstract

THE dispersal of small insects to high altitudes by convection and turbulence is known to produce an insect-density gradient in which density decreases with height1,2. The distribution has never been expressed mathematically; and since the insect population of the air varies considerably from hour to hour, and most of the observations at the different heights were made at different times, mathematical analysis would have yielded little of value.

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Authors and Affiliations

  1. Rothamsted Experimental Station, Harpenden, Herts.

    C. G. JOHNSON & H. L. PENMAN

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  1. C. G. JOHNSON
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  2. H. L. PENMAN
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JOHNSON, C., PENMAN, H. Relationship of Aphid Density to Altitude. Nature 168, 337–338 (1951). https://doi.org/10.1038/168337a0

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