Diving beetles (Dytiscidae) as predators of mosquito larvae (Culicidae) in field experiments and in laboratory tests of prey preference

Bulletin of Entomological Research
E LundkvistC Svensson

Abstract

Field experiments were performed in artificial ponds to evaluate how the density of predatory diving beetles (Dytiscidae) would affect the population levels of mosquito larvae (Culicidae). Mosquitoes colonizing the ponds were predominantly species of the genus Culex. In 2000, most of the dytiscids colonizing the ponds were small (Hydroporus spp.), and these predators had no impact on the size of larval mosquito populations, not even in ponds with added dytiscids. In 2001, larger beetles (Ilybius, Rhantus, and Agabus spp.) were more common, and there were significantly fewer mosquito larvae in ponds with the highest numbers of dytiscids. There was a negative correlation between numbers of diving beetles in the ponds and the mean body length of mosquito larvae. In neither year could dytiscid densities be maintained above a certain level owing to emigration. In laboratory tests, there were marked differences between three common dytiscid species in regard to preferences for Daphnia and Culex species as prey: Colymbetes paykulli Erichson chose mosquito larvae more often, whereas both Ilybius ater (De Geer) and I. fuliginosus (Fabricius) preferred Daphnia spp. All of the tested dytiscids consumed large numbers of prey. Since some dy...Continue Reading

References

Nov 1, 1997·Environmental Toxicology and Pharmacology·C Madsen

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Citations

Sep 19, 2006·Annual Review of Entomology·Leon Blaustein, Jonathan M Chase
Oct 17, 2008·BMC Infectious Diseases·Goutam ChandraSumanta Chakraborty
Apr 21, 2010·Journal of the American Mosquito Control Association·Shin-Ya Ohba, Masahiro Takagi
Jan 14, 2011·Parasitology Research·Kamaraju RaghavendraAditya P Dash
Dec 24, 2010·Journal of Vector Ecology : Journal of the Society for Vector Ecology·Wan Fatma Zuharah, Philip J Lester
Sep 15, 2007·Journal of the American Mosquito Control Association·Motoyoshi Mogi
Aug 1, 2015·Experimental Brain Research·Christian Keitel, Matthias M Müller
May 5, 2009·Experimental Brain Research·Michael J BanissyJamie Ward
Oct 17, 2019·PloS One·Mattia SaccòKliti Grice
Nov 16, 2019·Journal of Vector Ecology : Journal of the Society for Vector Ecology·Nattawut SareeinYeon Jae Bae
Jul 22, 2020·Ecology·Melissa H DeSiervoLauren E Culler
Mar 7, 2021·International Journal of Environmental Research and Public Health·Kasahun EbaDelenasaw Yewhalaw
Jul 3, 2021·International Journal of Environmental Research and Public Health·Beekam Kebede OlkebaSeid Tiku Mereta

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