Hostname: page-component-7479d7b7d-qlrfm Total loading time: 0 Render date: 2024-07-08T20:48:13.632Z Has data issue: false hasContentIssue false

Parasite utilization of a host community: the distribution and occurrence of metacercarial cysts of Echinoparyphium recurvatum (Digenea: Echinostomatidae) in seven species of mollusc at Harting Pond, Sussex

Published online by Cambridge University Press:  06 April 2009

N. A. Evans
Affiliation:
Department of Zoology, King's College London, Strand, London WC2R 2LS
P. J. Whitfield
Affiliation:
Department of Zoology, King's College London, Strand, London WC2R 2LS
A. P. Dobson
Affiliation:
Department of Zoology, King's College London, Strand, London WC2R 2LS

Summary

The occurrence, in September 1979, of Echinoparyphium recurvatum metacercarial cysts in a community of molluscan hosts at Harting Pond, West Sussex, was investigated. The parasite exhibited broad host specificity with all 7 species comprising the molluscan community being infected. There were marked differences, however, in the extent to which each host species was utilized and using the mean number of parasites/ individual mollusc as a parameter of infection the mollusc species may be ranked in descending order of utilization as follows: Sphaerium corneum, Lymnaea peregra, Valvata piscinalis, planorbids, Pisidium subtruncatum and Potamopyrgus jenkinsi. Combination of basic infection data with population estimates for each mollusc species in the study area showed that the bivalve P. subtruncatum and the prosobranch V. piscinalis were the most important hosts because they contained approximately 90% of the total number of cysts. In both of these hosts the cyst population was over-dispersed and the degree of over-dispersion increased with host size. The pattern of second intermediate host utilization is discussed in relation to the likely flow of E. recurvatum between the first intermediate host (L. peregra) and wildfowl definitive hosts at Harting.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1981

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Avery, R. A. (1966 a). Helminth parasites of Wildfowl from Slimbridge, Gloucestershire. I. Parasites of captive Anatidae. Journal of Helminthology 40, 269–80.CrossRefGoogle ScholarPubMed
Avery, R. A. (1966 b). Helminth parasites of Wildfowl from Slimbridge, Gloucestershire. II. Parasites of Wild Mallard. Journal of Helminthology 40, 281–4.CrossRefGoogle ScholarPubMed
Azim, M. A. (1930). On the identity and life history of Echinostomum recurvatum von Linstow, 1873. Annals of Tropical Medicine and Parasitology 24, 189–92.Google Scholar
Beverley-Burton, M. (1972). Holminths from Wild Anatids in Great Britain. Journal of Helminthology 46, 345–55.CrossRefGoogle ScholarPubMed
Bisseru, B. (1967). Stages in the Development of Larval Echinostomes recovered from Schistosome Transmitting Molluscs in Central Africa. Journal of Helminthology 41, 89108.CrossRefGoogle Scholar
Cramp, S. & Simmons, K. E. L. (1977). Handbook of the Birds of Europe the Middle East and North Africa. The Birds of the Western Palearctic. vol. 1 Ostrich to Ducks. Oxford: Oxford University Press.Google Scholar
Cramp, S. & Simmons, K. E. L. (1980). Handbook of the Birds of Europe, the Middle East and North Africa. The Birds of the Western Palearctic. vol. 2 Hawks to Bustards. Oxford: Oxford University Press.Google Scholar
Diaz-Diaz, M. T. (1976). Studies on the life cycles of digenetic trematodes. Ph.D. thesis, University of Leeds.Google Scholar
Harper, W. F. (1929). On the structure and life-history of British freshwater larval trematodes. Parasitology 21, 189219.CrossRefGoogle Scholar
Keymer, I. F., Rose, J. H., Beesley, W. N. & Davies, S. F. M. (1962). A Survey and Review of Parasitic Diseases of Wild and Game Birds in Great Britain. The Veterinary Record 74, 887–94.Google Scholar
Lapage, G. (1961). A list of the parasitic protozoa, helminths and arthropoda recorded from species of the family Anatidae (ducks, geese and swans). Parasitology 51, 1109.Google Scholar
Llewellyn, C. (1957). The morphology, biology and incidence of larval digeneans parasitic in certain freshwater molluscs. Ph.D. thesis, University of Wales.Google Scholar
Macan, T. T. (1969). A key to the British fresh-and brackish-water gastropods. Scientific Publication of the Freshwater Biological Association No. 13.Google Scholar
Olney, P. J. S. (1963). The food and feeding habits of Tufted Duck Aythya fuligula. Ibis 105, 5562.CrossRefGoogle Scholar
Olney, P. J. S. (1967). The W.A.G.B.I – Wildfowl Trust Experimental Reserve. Part II. The feeding ecology of local Mallard and other wildfowl. Wildfowl Trust 18th Annual Report, pp. 4755.Google Scholar
Probert, A. (1966). Studies on the incidence of larval trematodes infecting the freshwater molluscs of Llangorse Lake, S. Wales. Journal of Helminthology 40, 115–30.CrossRefGoogle Scholar
Russell Hunter, W. D. (1978). Ecology of freshwater pulmonates. In Pulinonates, vol. 2A (ed. Fretter, V. and Peake, J.), pp. 335–83. London: Academic Press.Google Scholar
Taylor, L. R. (1961). Aggregation. variance and the mean. Nature, London 189, 732–5.CrossRefGoogle Scholar
Taylor, L. R., Woiwood, I. P. & Perry, J. N. (1978). The density-dependence of spatial behaviour and the rarity of randomness. Journal of Animal Ecology 47, 383406.CrossRefGoogle Scholar
Young, M. R. (1973). Studies on the population dynamics of some digeneans parasitizing molluscs in the Worcester–Birmingham Canal. Ph.D. thesis, University of Birmingham.Google Scholar