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NESTMATE DISCRIMINATION AMONG LABORATORY OVERWINTERED FOUNDRESSES OF THE PAPER WASP, POLISTES FUSCATUS (HYMENOPTERA: VESPIDAE)

Published online by Cambridge University Press:  31 May 2012

Kathleen M. Bornais
Affiliation:
Department of Biological Sciences, Oakland University, Rochester, Michigan 48063
Christine M. Larch
Affiliation:
Department of Biological Sciences, Oakland University, Rochester, Michigan 48063
George J. Gamboa
Affiliation:
Department of Biological Sciences, Oakland University, Rochester, Michigan 48063
Raymond B. Daily
Affiliation:
Department of Biological Sciences, Oakland University, Rochester, Michigan 48063

Abstract

Approximately 140 gynes of the paper wasp, Polistes fuscatus, were overwintered in the laboratory with their natal nest and nestmates. After a 14 day isolation period, three marked female nestmates were placed into a nesting box with three marked female nestmates from a presumably unrelated colony. Fifteen nesting boxes were constructed, each with six gynes from two different sister groups. The identities of paired gynes (spaced ≤5 cm apart) and foundresses on nests were recorded in blind observations. Sisters preferentially paired (P <.0001) prior to nesting. Of 18 foundress associations formed at newly constructed nests, 16 consisted of sister groups.

Résumé

Environ 140 femelles fertiles de la guêpe Polistes fuscatus, ont été gardées au laboratoire durant l'hiver dans leur nid d'origine, avec les autres membres de la colonie. Après une pédiode de 14 jours d'isolation, trois femelles marquées provenant du même nid ont été placées dans une boîte à nicher en compagnie de trois femelles marquées provenant d'une autre colonie présumément sans lien de parenté. Quinze boîtes à nicher ont ainsi été préparées, chacune comptant six femelles fertiles provenant de deux groupes différents de soeurs. On a ensuite demandé à des observateurs non informés d'identifier les femelles fertiles formant des paires (espacées de ≤5 cm) et les fondatrices de nids. Les guêpes soeurs ont alors montré une nette préférence à s'apparier (P <.0001) avant de nicher. Des 18 associations constituées autour de nouveaux nids, 16 étaient formées de groupes de soeurs.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1983

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