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Variable effects of dipteran parasitoids and management treatment on grasshopper fecundity in a tallgrass prairie

Published online by Cambridge University Press:  27 September 2011

A.N. Laws  and
A. Joern
A.N. Laws*
Affiliation:
Division of Biology, Kansas State University, Manhattan, KS 66506, USA
A. Joern
Affiliation:
Division of Biology, Kansas State University, Manhattan, KS 66506, USA
*
*Author for correspondence Fax: +01 (785) 532-6653 E-mail: alaws@ksu.edu
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Abstract

Grasshoppers host a number of parasitoids, but little is known about their impact on grasshopper life history attributes or how those impacts may vary with land use. Here, we report on a three-year survey of nine grasshopper species in a tallgrass prairie managed with fire and bison grazing treatments. We measured parasitoid prevalence and the impact of parasitoid infection on grasshopper fecundity to determine if grasshopper-parasitoid interactions varied with management treatment. Adult female grasshoppers were collected every three weeks from eight watersheds managed with different prescribed burning and grazing treatments. Grasshopper fecundity with and without parasitoids was estimated through dissections of reproductive tracts. Dipteran parasitoids from two families (Nemestrinidae and Tachinidae) were observed infecting grasshoppers. We found significant effects of grazing treatment, but not burn interval, on grasshopper-parasitoid interactions. Parasitoids were three times more abundant in watersheds with bison grazing than in ungrazed watersheds, and the relative abundance of nemestrinid and tachinid flies varied with grazing treatment. Parasitoid prevalence varied among grasshopper species from <0.01% infected (Mermiria bivittata) to 17% infected (Hypochlora alba). Parasitoid infection reduced individual grasshopper fecundity, with stronger effects on current reproduction than on past reproduction. Furthermore, current fecundity in parasitized grasshoppers was lower in grazed watersheds compared to ungrazed watersheds. Nemestrinid parasitoids generally had stronger impacts on grasshopper fecundity than tachinid parasitoids, the effects of which were more variable.

Keywords

host-parasitoid interactionsOrthopterareproductiongrazinggrasslandKonza Prairie Biological Station
Type
Research Paper
Information
Bulletin of Entomological Research , Volume 102 , Issue 2 , April 2012 , pp. 123 - 130
Copyright
Copyright © Cambridge University Press 2011

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References

Arenz, C.L. & Joern, A. (1996) Prarie legacies- invertebrates. pp. 91–109in Samson, F.B. & Knopf, F.L. (Eds) Prairie Conservation: Preserving North America's Most Endangered Ecosystem. Covello, CA, USA, Island Press.Google Scholar
Belovsky, G.E. & Joern, A. (1995) Regulation of grassland grasshoppers: differing dominant mechanisms in time and space. pp. 359–386in Cappucino, N. & Price, P.W. (Eds) Novel Approaches for the Study of Population Dynamics: Examples from Insect Herbivores New York, NY, USA, Academic Press.CrossRefGoogle Scholar
Branson, D.H. (2003a) Effects of a parasitic mite on life-history variation in two grasshopper species. Evolutionary Ecology Research 5, 397–409.Google Scholar
Branson, D.H. (2003b) Reproduction and survival in Melanoplus sanguinipes (Orthoptera: Acrididae) in response to resource availability and population density: the role of exploitative competition. Canadian Entomologist 135, 415–426.CrossRefGoogle Scholar
Branson, D.H. (2008) Influence of individual body size on reproductive traits in Melanopline grasshoppers (Orthoptera: Acrididae). Journal of Orthoptera Research 17, 259–263.CrossRefGoogle Scholar
Branson, D.H., Joern, A. & Sword, G.A. (2006) Sustainable management of insect herbivores in grassland ecosystems: new perspectives in grasshopper control. BioScience 56, 743–755.CrossRefGoogle Scholar
Caron, V., Janmaat, A.F., Ericsson, J.D. & Myers, J.H. (2008) Avoidance of the host immune response by a generalist parasitoid, Compsilura concinnata Meigen. Ecological Entomology 33, 517–522.CrossRefGoogle Scholar
Danner, B.J. & Joern, A. (2004) Development, growth, and egg production of Ageneotettix deorum (Orthoptera: Acrididae) in response to spider predation risk and elevated resource quality. Ecological Entomology 29, 1–11.CrossRefGoogle Scholar
Danyk, T., Johnson, D.L. & Mackauer, M. (2000) Parasitism of the grasshopper Melanoplus sanguinipes by a sarcophagid fly, Blaesoxipha atlanis: influence of solitary and gregarious development on host and parasitoid. Entomologia Experimentalis et Applicata 94, 259–268.CrossRefGoogle Scholar
Danyk, T., Mackauer, M. & Johnson, D.L. (2005) Reduced food consumption in the grasshopper Melanoplus sanguinipes (Orthoptera: Acrididae) parasitized by Blaesoxipha atlanis (Diptera: Sarcophagidae). Canadian Entomologist 137, 356–366.CrossRefGoogle Scholar
Greathead, D.J. (1963) A review of the insect enemies of Acridoidea (Orthoptera). Transactions of the Royal Entomological Society of London 114, 437–517.CrossRefGoogle Scholar
Gwynn, D.M., Callaghan, A., Gorham, J., Walters, K.F.A. & Fellowes, M.D.E. (2005) Resistance is costly: trade-offs between immunity, fecundity and survival in the pea aphid. Proceedings of the Royal Society, Series B: Biological Sciences 272, 1803–1808.Google ScholarPubMed
Hackett-Jones, E., Cobbold, C. & White, A. (2009) Coexistence of multiple parasitoids on a single host due to differences in parasitoid phenology. Theoretical Ecology 2, 19–31.CrossRefGoogle Scholar
Hughes, A.R. & Grabowski, J.H. (2006) Habitat context influences predator interference interactions and the strength of resource partitioning. Oecologia 149, 256–264.CrossRefGoogle ScholarPubMed
Hurd, H. (2001) Host fecundity reduction: a strategy for damage limitation? Trends in Parasitology 17, 363–368.CrossRefGoogle ScholarPubMed
Joern, A. (2004) Variation in grasshopper (Acrididae) densities in response to fire frequency and bison grazing in tallgrass prairie. Environmental Entomology 33, 1617–1625.CrossRefGoogle Scholar
Joern, A. (2005) Disturbance by fire frequency and bison grazing modulate grasshopper assemblages in tallgrass prairie. Ecology 86, 861–873.CrossRefGoogle Scholar
Joern, A. & Gaines, S.B. (1990) Population dynamics and regulation in grasshoppers. pp. 415–482in Chapman, R.F. & Joern, A. (Eds) Biology of Grasshoppers. New York, NY, USA, John Wiley and Sons, Inc.Google Scholar
Jonas, J.L. & Joern, A. (2007) Grasshopper (Orthoptera: Acrididae) communities respond to fire, bison grazing and weather in North American tallgrass prairie: a long-term study. Oecologia 153, 699–711.CrossRefGoogle Scholar
Knapp, A.K., Briggs, J.M., Hartnett, D.C. & Collins, S.L. (Eds) (1998) Grassland Dynamics: Long-Term Ecological Research in Tallgrass Prairie. New York, NY, USA, Oxford University Press, Inc.CrossRefGoogle Scholar
Kraaijeveld, A.R., Ferrari, J. & Godfray, H.C.J. (2002) Costs of resistance in insect-parasite and insect-parasitoid interactions. Parasitology 125, S71–S82.CrossRefGoogle ScholarPubMed
Laws, A.N. (2009) Density-dependent reductions in grasshopper fecundity in response to nematode parasitism. The Canadian Entomologist 141, 415–421.CrossRefGoogle Scholar
Laws, A.N. & Joern, A.Grasshopper fecundity responses to grazing and fire in a tallgrass prairie. Environmental Entomology, in press.Google Scholar
Lockwood, J.A. (1997) Grasshopper population dynamics: a prairie perspective. pp. 103–128in Gangwere, S.K., Muralirangan, M.C. & Muralirangan, M. (Eds) The Bionomics of Grasshoppers, Katydids, and their Kin. New York, NY, USA, CAB International.Google Scholar
Margolis, L., Esch, G.W., Holmes, J.C., Kuris, A.M. & Schad, G.A. (1982) The use of ecological terms in parasitology (report of an ad hoc committee of the American Society of Parasitologists). Journal of Parasitology 68, 131–133.CrossRefGoogle Scholar
May, R.M. & Hassell, M.P. (1981) The dynamics of multiparasitoid-host interactions. American Naturalist 117, 234–261.CrossRefGoogle Scholar
Miura, K. & Hsak, N. (2007) Host characteristics related to host use by the flesh fly, Blaesoxipha japonensis (Diptera: Sarcophagidae), a parasitoid of adult grasshoppers. Applied Entomology and Zoology 42, 651–658.CrossRefGoogle Scholar
Onsager, J.A. (1977) Comparison of five methods for estimating density of rangeland grasshoppers Orthoptera-Acrididae. Journal of Economic Entomology 70, 187–190.CrossRefGoogle Scholar
Panzer, R. (2002) Compatibility of prescribed burning with the conservation of insects in small, isolated prairie reserves. Conservation Biology 16, 1296–1307.CrossRefGoogle Scholar
Phipps, J. (1949) The structure and maturation of the ovaries in British Acrididae (Orthoptera). Transactions of the Royal Entomological Society of London 100, 233–247.CrossRefGoogle Scholar
Prescott, H.W. (1960) Supression of grasshoppers by Nemestrinid parasites (Diptera). Annals of the Entomological Society of America 53, 513–521.CrossRefGoogle Scholar
Rees, N.A. (1973) Arthropod and nematode parasites, parasitoids, and predators of Acrididae in America north of Mexico. US Department of Agriculture, Washington, DC, USA.Google Scholar
Rees, N.E. (1986) Effects of dipterous parasites on production and viability of Melanoplus sanguinipes eggs (Orthoptera: Acrididae). Environmental Entomology 15, 205–206.CrossRefGoogle Scholar
Sanchez, N.E. & Onsager, J.A. (1994) Effects of dipterous parasitoids on reproduction of Melanoplus sanguinipes (Orthoptera: Acrididae). Journal of Orthoptera Research 3, 65–68.CrossRefGoogle Scholar
Singh, T. (1958) Ovulation and corpus luteum formation in Locusta migratioria migratorioides Reiche and Fairmaire and Schistocerca gregaria (Forskal). Transactions of the Royal Entomological Society of London 110, 1–20.CrossRefGoogle Scholar
Sundberg, S.V., Luong-Skovmand, M.H. & Whitman, D.W. (2001) Morphology and development of oocyte and follicle resorption bodies in the lubber grasshopper, Romalea microptera (Beauvois). Journal of Orthoptera Research 10, 39–51.CrossRefGoogle Scholar
Uvarov, S.B. (1966) Grasshoppers and Locusts a Handbook of General Acridology. London, UK, Cambridge University Press.Google Scholar
Wall, R. & Begon, M. (1987) Population density, phenotype and reproductive output in the grasshopper Chorthippus brunneus. Ecological Entomology 12, 331–339.CrossRefGoogle Scholar
Whiles, M.R. & Charlton, R.E. (2006) The ecological significance of tallgrass prairie arthropods. Annual Review of Entomology 51, 387–412.CrossRefGoogle ScholarPubMed
Zar, J.H. (1999) Biostatistical Analysis. Upper Saddle River, NJ, USA, Prentice Hall.Google Scholar