Stealthy invaders: the biology of Cardiocondyla tramp ants

Heinze, Jürgen and Cremer, S. and Eckl, N. and Schrempf, A. (2006) Stealthy invaders: the biology of Cardiocondyla tramp ants. INSECTES SOCIAUX, 53 (1). pp. 1-7. ISSN 0020-1812

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Abstract

Many invasive ant species, such as the Argentine ant or the red imported fire ant, have huge colonies with thousands of mass-foraging workers, which quickly monopolise resources and therefore represent a considerable threat to the native ant fauna. Cardiocondyla obscurior and several other species of this myrmicine genus have similarly been transferred throughout the tropics by human activities. However, because their colonies are tiny and workers forage solitarily, Cardiocondyla are often not recognized as successful invaders. Here, we document that the life history of Cardiocondyla closely resembles that of the more conspicuous tramp species, with polygyny, intranidal mating, budding, worker sterility, low genetic variability, and possibly also unicoloniality. Given that introduced Cardiocondyla may locally reach a very high population density, the effects of these stealthy invaders on the native arthropod fauna should receive more attention.

Item Type: Article
Uncontrolled Keywords: ARGENTINE ANT; ESSENTIAL COMPONENT; POPULATION BIOLOGY; GENETIC-VARIATION; DIMORPHIC MALES; HYMENOPTERA; FORMICIDAE; EVOLUTION; COLONIES; BEHAVIOR; invasive ants; unicoloniality; polygyny; intranidal mating; competition
Subjects: 500 Science > 570 Life sciences
500 Science > 590 Zoological sciences
Divisions: Biology, Preclinical Medicine > Institut für Zoologie > Zoologie/Evolutionsbiologie (Prof. Dr. Jürgen Heinze)
Depositing User: Petra Gürster
Date Deposited: 11 Feb 2021 17:30
Last Modified: 11 Feb 2021 17:30
URI: https://pred.uni-regensburg.de/id/eprint/34992

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