Ecology and evolution of host-parasite associations: mycophagous Drosophila and their parasitic nematodes

The American Naturalist
John Jaenike, Steve J Perlman

Abstract

Associations between mycophagous Drosophila and nematode parasites occur throughout the temperate and boreal regions of North America, Europe, and Asia. The nematode Howardula aoronymphium has substantial adverse effects on host survival and fertility on North American Drosophila. Long-term data show that rainy summers lead to a high prevalence of parasitism in the fall and the following spring, resulting in up to a 1-yr time lag between present rainfall and increased prevalence of H. aoronymphium parasitism. A biogeographic analysis of the relative abundance of different Drosophila species has shown that H. aoronymphium may facilitate the coexistence of different species of Drosophila that compete for larval food resources. The actual host range of parasites in nature is determined by the intrinsic suitability of potential hosts for parasite infection and reproduction and various ecological factors. For H. aoronymphium in eastern North America, intrinsically suitable hosts fall within a restricted clade within the genus Drosophila. However, the temperature sensitivity of H. aoronymphium prevents it from using several host species that occur outside the geographical range of the nematodes. Finally, the host range, virulence, an...Continue Reading

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Citations

Jun 6, 2009·PloS One·Gregory E GlassSabra L Klein
Jul 10, 2010·Science·John JaenikeSteve J Perlman
Oct 2, 2009·Environmental Entomology·Eric J CalderaCameron R Currie
Aug 28, 2003·Evolution; International Journal of Organic Evolution·Steve J Perlman, John Jaenike
Apr 22, 2003·Evolution; International Journal of Organic Evolution·Steve J Perlman, John Jaenike
Apr 5, 2013·Evolution; International Journal of Organic Evolution·Tamara S HaselkornJohn Jaenike
Mar 23, 2013·Ecology Letters·Sarah N CockburnSteve J Perlman
May 15, 2013·Journal of Evolutionary Biology·C L Debban, K A Dyer
Dec 4, 2015·PLoS Pathogens·Jessica L AbbateSébastien Lion
Aug 19, 2004·Proceedings. Biological Sciences·Nicole M GerardoCameron R Currie
Mar 21, 2017·Journal of Chemical Ecology·James A CevallosElissa A Hallem
Mar 14, 2019·Molecular Biology and Evolution·Tom HillRobert L Unckless
Aug 20, 2016·Fly·Alejandra Perez-LeanosTherese Ann Markow
Oct 26, 2016·BMC Evolutionary Biology·Mark A HansonSteve J Perlman
Dec 24, 2018·Genome Biology and Evolution·Matthew J BallingerSteve J Perlman
Oct 23, 2020·Molecular Ecology·Tom Hill, Robert L Unckless
Dec 2, 2020·Proceedings of the National Academy of Sciences of the United States of America·Vincent G MartinsonSteve J Perlman
Sep 23, 2019·Current Opinion in Insect Science·William J Etges

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