Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1111/j.1948-7134.2013.12055.x
Titel (primär) Crustacean biodiversity as an important factor for mosquito larval control
Autor Kroeger, I.; Duquesne, S.; Liess, M.
Quelle Journal of Vector Ecology
Erscheinungsjahr 2013
Department OEKOTOX
Band/Volume 38
Heft 2
Seite von 390
Seite bis 400
Sprache englisch
Keywords Biological control;Cladocera;combined effect;competition;Culicidae;pond colonization
UFZ Querschnittsthemen TERENO; RU2;

Newly established ponds, which are highly dynamic systems with changing levels of biological interactions among species, are common larval mosquito habitats. We investigated the impact of crustacean abundance and taxa diversity on mosquito oviposition and larval development. The effects of the biological larvicide Bacillus thuringiensis israelensis (Bti) on mosquito larvae were monitored according to fluctuations in crustacean communities. Populations of the mosquito Culex pipiens colonized artificial ponds that contained crustacean communities at different time points of colonization by crustaceans: 1) ‘no colonization’ (no crustaceans), 2) ‘simultaneous colonization’ by crustaceans and mosquitoes, and 3) ‘head-start colonization’ by crustaceans (preceding colonization by mosquitoes). All types of ponds were treated with three concentrations of Bti (10, 100, or 1,000 µg/liter). Colonization of all ponds by Cx. pipiens (in terms of oviposition, larval abundance, and larval development) decreased significantly with increasing diversity of crustacean taxa. The total abundance of crustaceans had a minor effect on colonization by Cx. pipiens. The presence of crustaceans increased the sensitivity of Cx. pipiens larvae to Bti treatment by a factor of 10 and delayed the time of recolonization. This effect of Bti was relevant in the short term. In the long term, the presence of Cx. pipiens was determined by crustacean biodiversity.

dauerhafte UFZ-Verlinkung
Kroeger, I., Duquesne, S., Liess, M. (2013):
Crustacean biodiversity as an important factor for mosquito larval control
J. Vector Ecol. 38 (2), 390 - 400 10.1111/j.1948-7134.2013.12055.x