Alternative reproductive strategies in Formica lugubris Zett. (Hymenoptera Formicidae)

D. Cherix Musée de Zoologie, 6 Place de la Riponne, C.P. 448, 1000, Lausanne 17, Switzerland

D. Chautems Musée de Zoologie, 6 Place de la Riponne, C.P. 448, 1000, Lausanne 17, Switzerland

D. J.C. Fletcher Program in Animal Behavior, Bucknell University, Lewisburg, Pennsylvania, 17837, U.S.A.

W. Fortelius Institute of Zoology, University of Helsinki, P. Rautatiekatu 13, 00100, Helsinki, Finland

G. Gris Musée de Zoologie, 6 Place de la Riponne, C.P. 448, 1000, Lausanne 17, Switzerland

L. Keller Musée de Zoologie, 6 Place de la Riponne, C.P. 448, 1000, Lausanne 17, Switzerland

L. Passera Laboratoire d'Entomologie, Université Paul Sabatier, 31062, Toulouse, France

R. Rosengren Institute of Zoology, University of Helsinki, P. Rautatiekatu 13, 00100, Helsinki, Finland

E. L. Vargo Department of Zoology, University of Texas, Austin, Texas, 78712, U.S.A.

F. Walter Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King Platz 6, 2000, Hamburg 13, Germany

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Abstract

A long term study on the reproductive strategies of Formica lugubris (Formica rufa group) has revealed many new important facts. Within a supercolony the sex-ratio is strongly female biased. Some of the sexuals mate on the nest surface, whereas others fly from the nest. Those sexuals participating in flights aggregate in particular meadow sites (mating places). On these places females attract males by releasing a sex pheromone.

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Alternative reproductive strategies in Formica lugubris Zett. (Hymenoptera Formicidae)

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Alternative reproductive strategies in Formica lugubris Zett. (Hymenoptera Formicidae)

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