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Observations on life cycle and feeding ecology of two recently introduced predatory beetle species at South Georgia, sub-Antarctic

Ernsting, G.. 1993 Observations on life cycle and feeding ecology of two recently introduced predatory beetle species at South Georgia, sub-Antarctic. Polar Biology, 13 (6). 423-428. 10.1007/BF01681985

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Abstract/Summary

On South Georgia, two recently introduced species of predatory beetle,Oopterus soledadinus andTrechisibus antarcticus (Coleoptera, Carabidae), were studied in the period November 1991–April 1992. The study area comprised the coastal area around Stromness Bay, in particular the surroundings of the abandoned whaling station at Husvik. The study investigated the life cycle of both species and, forT. antarcticus, aspects of feeding. The occurrence of both teneral and gravid beetles was observed for the whole of the summer period.Trechisibus antarcticus appeared to be the more voracious predator of the two; its impact on other populations of soil animals may be large as shown by its effect on the endemic detritivorous beetleHydromedion sparsutum (Perimylopidae).

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1007/BF01681985
Programmes: BAS Programmes > Pre 2000 programme
ISSN: 0722-4060
Date made live: 05 Sep 2017 10:37 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/517709

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