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Temperature profiles inside webs of the fall webworm, Hyphantria cunea (Lepidoptera: Arctiidae): Influence of weather, compass orientation, and time of day

✍ Scribed by Bradley G. Rehnberg


Book ID
104034942
Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
213 KB
Volume
31
Category
Article
ISSN
0306-4565

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✦ Synopsis


  1. Webs of the fall webworm (Hyphantria cunea) were studied to determine how web temperatures change over 24-h periods. 2. Temperatures inside webs were strongly elevated compared to ambient temperatures for 6-8 h per day. On rainy, overcast days and at night, however, web temperatures were very close to ambient temperatures.

  2. South-facing and north-facing webs were not significantly different in their capacity to absorb and retain heat. Directions of webs were not biased toward south, north, east, or west.

  3. Although webworms cannot physiologically elevate body temperatures, they clearly do create living spaces that efficiently capture diurnal environmental heat.