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- Title
The foraging ecology of hoverflies (Diptera, Syrphidae): circular movements on composite flowers.
- Authors
Gilbert, Francis S.
- Abstract
An energetic analysis of the foraging behaviour for nectar of Eristalis tenax L. is presented. The rate of energy gain while foraging on Aster is low (0.01 W) relative to similar calculations for bees, but the flies can fill their crop in about 75-220 min. Flies visit the nectar-bearing ring of florets on a capitulum systematically, leaving when they have circled it once (Fig. 1). A simple decision-making rule appears to be used to decide when to leave.
- Subjects
FORAGING behavior; NECTAR; ERISTALIS; BEES; DECISION making in animals; FLIES
- Publication
Behavioral Ecology & Sociobiology, 1983, Vol 13, Issue 4, p253
- ISSN
0340-5443
- Publication type
Article
- DOI
10.1007/BF00299672