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Variation in social behavior within a spider mite genus, Stigmaeopsis (Acari: Tetranychidae)

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Title: Variation in social behavior within a spider mite genus, Stigmaeopsis (Acari: Tetranychidae)
Authors: Mori, Kotaro Browse this author
Saito, Yutaka2 Browse this author →KAKEN DB
Authors(alt): 斉藤, 裕2
Keywords: cooperation
group defense
spider mites
Issue Date: 25-Aug-2004
Publisher: Oxford University Press
Journal Title: Behavioral Ecology
Volume: 16
Issue: 1
Start Page: 232
End Page: 238
Publisher DOI: 10.1093/beheco/arh157
Abstract: The spider mites belonging to the genus Stigmaeopsis construct extremely dense oval woven roofs (web-nests) over depressions on the lower surface of host leaves and are known to have a kind of sociality. The 4 species that occur on bamboo plants in Japan, show different nest areas. The nest area of Stigmaeopsis longus is the largest, followed by S. celarius, S. takahashii and S. saharai in decreasing order. Smaller nests effectively prevent adults of several predator mite species from intruding. We hypothesized that variation in nest size reflects different anti-intruder adaptations of this mite group in relation to their sociality. The larger nest makers may adopt an alternative anti-intruder strategy, i.e. counterattack by a large group, so as to compensate for the disadvantage of large nests. S. longus and S. celarius adults effectively defended their large nests against potential predators, and the effects of nest defense increased with the number of individuals in a nest. S. takahashii and S. saharai revealed no counterattack effect. Counterattack abilities that increase with the adult density and thus sociality may compensate for the vulnerability of larger nests.
Description: This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Behavioral Ecology following peer review. The definitive publisher-authenticated version Oxford University Press, Behavioral Ecology,16(1),2005,232-238 is available online at: that the author will receive upon publication here.
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Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 齋藤 裕

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