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1 May 2003 Vertical-Looking Radar: A New Tool for Monitoring High-Altitude Insect Migration
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Abstract

Many insect species engage in high-altitude, wind-borne migration, often several hundred meters above the ground. At these heights they can use the wind to travel tens or hundreds of kilometers in a single flight, and hence a knowledge of their movements is essential to understanding their ecology and population dynamics. Direct observation of high-flying insect migrants is very difficult, especially at night, but the remote sensing capabilities of entomological radar provide a solution to this seemingly intractable problem. We describe a novel, nutating-beam, vertical-looking radar with autonomous data analysis software. This system routinely extracts data on size, shape, alignment, and displacement vectors from individual targets, allowing long-term monitoring of migrant insect populations. We discuss the capabilities and limitations of this system and describe some of its applications in the study of insect migration behaviour.

JASON W. CHAPMAN, DON R. REYNOLDS, and ALAN D. SMITH "Vertical-Looking Radar: A New Tool for Monitoring High-Altitude Insect Migration," BioScience 53(5), 503-511, (1 May 2003). https://doi.org/10.1641/0006-3568(2003)053[0503:VRANTF]2.0.CO;2
Published: 1 May 2003
JOURNAL ARTICLE
9 PAGES

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