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Spatial covariation between infection levels and intermediate host densities in two trematode species

Published online by Cambridge University Press:  12 April 2024

E.K. Hansen  and
R. Poulin
E.K. Hansen
Affiliation:
Department of Zoology, University of Otago, PO Box 56, Dunedin, New Zealand
R. Poulin*
Affiliation:
Department of Zoology, University of Otago, PO Box 56, Dunedin, New Zealand
*
*Author for correspondence Fax: +64-3-479-7584 E-mail: [email protected]
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Abstract

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Both theoretical arguments and empirical evidence suggest that parasite transmission depends on host density. In helminths with complex life cycles, however, it is not clear which host, if any, is the most important. Here, the relationships between the abundance of metacercariae in second intermediate hosts, and the local density of both the first and second intermediate hosts of two trematode species, are investigated. Samples of the snail Potamopyrgus antipodarum, the amphipod Paracalliope fluviatilis and the isopod Austridotea annectens were collected from ten stations in a New Zealand lake. In the trematode Coitocaecum parvum, neither the density of the snail first intermediate host nor that of the amphipod second intermediate host correlated with infection levels in amphipods. In contrast, in the trematode Microphallus, infection levels in isopod second intermediate hosts were positively associated with isopod density and negatively associated with the density of snail first intermediate hosts. These relationships are explained by a negative correlation between snail and isopod densities, mediated in part by their different use of macrophyte beds in the lake. Overall, the results suggest that, at least for Microphallus, local infection levels depend on local intermediate host densities.

Type
Research Article
Information
Journal of Helminthology , Volume 80 , Issue 3 , September 2006 , pp. 255 - 259
Copyright
Copyright © Cambridge University Press 2006

References

Arneberg, P. (2001) An ecological law and its macroecological consequences as revealed by studies of relationships between host densities and parasite prevalence. Ecography 24, 352–358.CrossRefGoogle Scholar
Arneberg, P. (2002) Host population density and body mass as determinants of species richness in parasite communities: comparative analyses of directly transmitted nematodes of mammals. Ecography 25, 88–94.10.1034/j.1600-0587.2002.250110.xCrossRefGoogle Scholar
Arneberg, P., Skorping, A., Grenfell, B. & Read, A.F. (1998) Host densities as determinants of abundance in parasite communities. Proceedings of the Royal Society of London B 265, 1283–1289.CrossRefGoogle Scholar
Bagge, A.M., Poulin, R. & Valtonen, E.T. (2004) Fish population size, and not density, as the determining factor of parasite infection: a case study. Parasitology 128, 305–313.CrossRefGoogle Scholar
Chadderton, W.L., Ryan, P.A. & Winterbourn, M.J. (2003) Distribution, ecology, and conservation status of freshwater Idoteidae (Isopoda) in southern New Zealand. Journal of the Royal Society of New Zealand 22, 529–548.CrossRefGoogle Scholar
Combes, C. (1996) Parasites, biodiversity and ecosystem stability. Biodiversity and Conservation 5, 953–962.CrossRefGoogle Scholar
Hechinger, R.F. & Lafferty, K.D. (2005) Host diversity begets parasite diversity: bird final hosts and trematodes in snail intermediate hosts. Proceedings of the Royal Society of London B 272, 1059–1066.Google ScholarPubMed
Latham, A.D.M. & Poulin, R. (2003) Spatiotemporal heterogeneity in recruitment of larval parasites to shore crab intermediate hosts: the influence of shorebird definitive hosts. Canadian Journal of Zoology 81, 1282–1291.CrossRefGoogle Scholar
Macfarlane, W.V. (1939) Life cycle of Coitocaecum anaspidis Hickman, a New Zealand digenetic trematode. Parasitology 31, 172–184.CrossRefGoogle Scholar
Marcogliese, D.J., Campagna, S., Bergeron, E. & McLaughlin, J.D. (2001) Population logy of eyeflukes in fish from a large fluvial ecosystem: the importance of gulls and habitat characteristics. Canadian Journal of Zoology 79, 1102–1113.CrossRefGoogle Scholar
McCarthy, A.M. (1990) The influence of second intermediate host dispersion pattern upon the transmission of cercariae of Echinoparyphium recurvatum (Digenea: Echinostomatidae). Parasitology 101, 43–47.CrossRefGoogle ScholarPubMed
McDowall, R.M. (1990) New Zealand freshwater fishes: a natural history and guide. 553 pp. Auckland Heinemann Reed.Google Scholar
Morand, S. & Poulin, R. (1998) Density, body mass and parasite species richness of terrestrial mammals. Evolutionary Ecology 12, 717–727.CrossRefGoogle Scholar
Mouritsen, K.N. & Poulin, R. (2002) Parasitism, community structure and biodiversity in intertidal ecosystems. Parasitology 124, S101–S117.CrossRefGoogle ScholarPubMed
Roberts, M.G., Dobson, A.P., Arneberg, P., de Leo, G.A., Krecek, R.C., Manfredi, M.T., Lanfranchi, P. & Zaffaroni, E. (2002) Parasite community ecology and biodiversity. 63–82 in Hudson, P.J., Rizzoli, A., Grenfell, B.T., Heesterbeek, H. & Dobson, A.P. (Eds) The ecology of wildlife diseases. Oxford Oxford University Press.CrossRefGoogle Scholar
Robson, E.M. & Williams, I.C. (1970) Relationships of some species of Digenea with the marine prosobranch Littorina littorea (L.). I. The occurrence of larval Digenea in, L. littorea on the North Yorkshire coast. Journal of Helminthology 44, 153–168.CrossRefGoogle Scholar
Smith, N.F. (2001) Spatial heterogeneity in recruitment of larval trematodes to snail intermediate hosts. Oecologia 127, 115–122.CrossRefGoogle ScholarPubMed
Takemoto, R.M., Pavanelli, G.C., Lizama, M.A.P., Luque, J.L. & Poulin, R. (2005) Host population density as the major determinant of endoparasite species richness in floodplain fishes of the upper Paraná River, Brazil. Journal of Helminthology 79, 75–84.CrossRefGoogle Scholar