Buschinger, Alfred and Cagniant, Henry and Erhardt, Werner and Heinze, Jürgen (1988) CHALEPOXENUS-BRUNNEUS A WORKERLESS DEGENERATE SLAVE-MAKER ANT (HYMENOPTERA FORMICIDAE). Psyche (Cambridge) 95 (3-4), pp. 253-264.
Chalepoxenus brunneus, found in only one very small site in the Great Atlas of Morocco, represents a workless parasitic species which is derived from actively dulotic congeners ("degenerate slavemaker"). The host species is Leptothorax cf. marocanus. The C. b. queen apparently eliminates the host colony queen by stinging her. She also stings to death a considerable part of the host colony workers, but, different from the dulotic congeners, the C. b. queen then is accepted by the remaining adult host workers. The sexual production is queen-biased (sex ratio 0.43 male/female); mating presumably takes place close to the nest. We found no evidence for a female sexual pheromone, but the C. b. males react on the pheromone form poison glands of other Chalepoxenus species. The life history of C. b. parallels that of other "degenerate slave-makers" in the genus Epimyrma.
|Institutions:||Biology, Preclinical Medicine > Institut für Zoologie > Evolution, Verhalten und Genetik (Prof. Dr. Jürgen Heinze)|
|Keywords:||Behavior; Communication; Development; Ecology (Environmental Sciences); Endocrine System (Chemical Coordination and Homeostasis); Parasitology; Pathology; Physiology; Reproductive System (Reproduction)|
|Subjects:||500 Science > 570 Life sciences|
500 Science > 590 Zoological sciences
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||No|
|Deposited On:||03 Jul 2009 09:24|
|Last Modified:||20 Jul 2011 21:35|