Biological control effects of non-reproductive host mortality caused by insect parasitoids

Ecological Applications : a Publication of the Ecological Society of America
Joe M KaserPaul K Abram

Abstract

As the rate of spread of invasive species increases, consumer-resource communities are often populated by a combination of exotic and native species at all trophic levels. In parasitoid-host communities, these novel associations may lead to disconnects between parasitoid preference and performance, and parasitoid oviposition may result in death of the parasitoid offspring, death of the host, or death of both. Despite their relevance for biological control risk and efficacy assessments, the direct and indirect population-level consequences of parasitoids attacking and killing their hosts without successfully reproducing (non-reproductive mortality) are poorly understood. Non-reproductive mortality induced by egg parasitoids (parasitoid-induced host egg abortion) may be particularly important for understanding the population dynamics of the invasive agricultural pest Halyomorpha halys (Hemiptera: Pentatomidae) and endemic stink bugs in North America, which are attacked by a suite of both native and introduced egg parasitoids. It is unclear, however, how various factors controlling parasitoid foraging and developmental success manifest at the population level. We constructed two related versions of a two-host-one-parasitoid model ...Continue Reading

References

Mar 21, 2007·Proceedings of the National Academy of Sciences of the United States of America·Elizabeth T BorerAndrew P Dobson
Apr 22, 2008·Ecology Letters·Luisa G CarvalheiroJane Memmott
Aug 22, 2008·Proceedings of the National Academy of Sciences of the United States of America·M Alex SmithPaul D N Hebert
Feb 17, 2009·Oecologia·Nicolas DesneuxGeorge E Heimpel
Apr 24, 2012·Evolution; International Journal of Organic Evolution·Mark K AsplenGeorgiana May
Jan 10, 2014·Oecologia·James O EckbergSvata M Louda
Jul 21, 2016·Current Opinion in Insect Science·Joe M Kaser, Paul J Ode
Aug 22, 2017·Journal of Pest Science·Jinping ZhangTim Haye

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