Sampling Aerially Dispersing Arthropods: A High-Volume, Inexpensive, Automobile- and Aircraft-Borne System
Authors: GREENSTONE, MATTHEW H.; EATON, ROBERT R.; MORGAN, CLYDE E.
Source: Journal of Economic Entomology, Volume 84, Number 6, December 1991 , pp. 1717-1724(8)
Publisher: Entomological Society of America
Abstract:Densities of aerially dispersing arthropods are on the order of only hundredths to single individuals per 1,000 mO. Therefore, an understanding of the atmospheric dynamics of dispersal requires active sampling of high volumes of air. We describe a system for active sampling in the surface boundary layer, from which arthropods ascend, and the planetary boundary layer, in which arthropods are transported by winds. The sampler, a net with a diameter of 0.62 m, was carried by an automobile in the surface boundary layer and a slowflying fixed-wing aircraft (Piper Cub) in the planetary boundary layer. The slow airspeeds characteristic of this aircraft permit large sampling rates without the need for expansion chambers in the samplers, which would require aircraft modification. It is also one of the least expensive aircraft to maintain and fly. At 72.4 km/h, a speed that does not destroy small specimens as traditional aircraft sampling speeds may, the two aircraft nets sampled at the rate of 38,910 mO/h. At the same speed, the single automobile net sampled at the rate of 21,420 mO/h.
Document Type: Research Article
Publication date: December 1991
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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