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Comparison of the Behavioural Response of Two Leptopilina Species (Hymenoptera: Eucoilidae), Living in Different Microhabitats, To Kairomone of Their Host (Drosophilidae)

Comparison of the Behavioural Response of Two Leptopilina Species (Hymenoptera: Eucoilidae),... COMPARISON OF THE BEHAVIOURAL RESPONSE OF TWO LEPTOPILINA SPECIES (HYMENOPTERA: EUCOILIDAE), LIVING IN DIFFERENT MICROHABITATS, TO KAIROMONE OF THEIR HOST (DROSOPHILIDAE) by LOUISE E. M. VET and ROB VAN DER HOEVEN (Department of Population Biology, Division of Ecology, Zoolögisch Laboratorium, University of Leiden, Postbus 9516, 2300 RA Leiden, The Netherlands) SUMMARY This paper reports on a comparative study on the response of two related parasitoids to kairomone of their hosts. Leptopilina heterotoma (Thomson) attacks larvae of Drosophila in fermenting fruits and Leptopilina fimbriata (Kieffer) attacks larvae of mainly Scaptomyza pallida (Zetterstedt) in decaying plants. In both species the response to water-soluble kairomone involves a reduction in walking speed and an increase in the frequency with which the substrate is probed. However, essential differences in some of the behavioural parameters between the two species were also discovered. Upon en- countering a substrate with kairomone L. heterotoma starts to walk more with longer strolls, whereas L. fimbriata is arrested more strongly and starts to walk less with shorter strolls. The differences in response are possibly adaptations to differences in natural host distribution and density as found in the two microhabitats. INTRODUCTION Parasitic Hymenoptera may use a diversity of stimuli to http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Netherlands Journal of Zoology (in 2003 continued as Animal Biology) Brill

Comparison of the Behavioural Response of Two Leptopilina Species (Hymenoptera: Eucoilidae), Living in Different Microhabitats, To Kairomone of Their Host (Drosophilidae)

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Publisher
Brill
Copyright
© 1983 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2960
eISSN
1568-542X
DOI
10.1163/002829684X00173
Publisher site
See Article on Publisher Site

Abstract

COMPARISON OF THE BEHAVIOURAL RESPONSE OF TWO LEPTOPILINA SPECIES (HYMENOPTERA: EUCOILIDAE), LIVING IN DIFFERENT MICROHABITATS, TO KAIROMONE OF THEIR HOST (DROSOPHILIDAE) by LOUISE E. M. VET and ROB VAN DER HOEVEN (Department of Population Biology, Division of Ecology, Zoolögisch Laboratorium, University of Leiden, Postbus 9516, 2300 RA Leiden, The Netherlands) SUMMARY This paper reports on a comparative study on the response of two related parasitoids to kairomone of their hosts. Leptopilina heterotoma (Thomson) attacks larvae of Drosophila in fermenting fruits and Leptopilina fimbriata (Kieffer) attacks larvae of mainly Scaptomyza pallida (Zetterstedt) in decaying plants. In both species the response to water-soluble kairomone involves a reduction in walking speed and an increase in the frequency with which the substrate is probed. However, essential differences in some of the behavioural parameters between the two species were also discovered. Upon en- countering a substrate with kairomone L. heterotoma starts to walk more with longer strolls, whereas L. fimbriata is arrested more strongly and starts to walk less with shorter strolls. The differences in response are possibly adaptations to differences in natural host distribution and density as found in the two microhabitats. INTRODUCTION Parasitic Hymenoptera may use a diversity of stimuli to

Journal

Netherlands Journal of Zoology (in 2003 continued as Animal Biology)Brill

Published: Jan 1, 1983

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