Sociobiology of hypogaeic army ants: characterization of two sympatric <Emphasis Type="Italic">Dorylus</Emphasis> species on Borneo and their colony conflicts
(1) Department of Animal Ecology and Tropical Biology, Biozentrum, University of Würzburg, Am Hubland, 97074 Würzburg, Germany;(2) AG Ethoökologie, University of Frankfurt, Siesmayerstrasse 70, 60323 Frankfurt, Germany