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Descriptive epidemiology of Heligmosomoides polygyrus in Apodemus sylvaticus from three contrasting habitats in south-east England

Published online by Cambridge University Press:  05 June 2009

M.A. Abu-Madi ,
J.M. Behnke ,
J.W. Lewis  and
F.S. Gilbert
M.A. Abu-Madi
Affiliation:
School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 OEX, UK
J.M. Behnke*
Affiliation:
School of Biological Sciences, University Park, University of Nottingham, Nottingham, NG7 2RD, UK
J.W. Lewis
Affiliation:
School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 OEX, UK
F.S. Gilbert
Affiliation:
School of Biological Sciences, University Park, University of Nottingham, Nottingham, NG7 2RD, UK
*
*Author for correspondence. Fax: 0115 951 3251 E-mail: jerzy.behnke@nottingham.ac.uk
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Abstract

Seasonal fluctuations in the prevalence and intensity of infection with Heligmosomoides polygyrus (Nematoda) were studied in Apodemus sylvaticus (wood mouse, n = 399), sampled from three contrasting habitats in southern England, to test the hypothesis that both intrinsic (host sex, age) and extrinsic (season, site) factors influence parasite burdens. Maximum likelihood techniques based on log linear analysis of contingency tables were employed to generate a minimum sufficient model for prevalence of infection and 3-way ANOVA with negative binomial errors was used to evaluate the relative contribution of the principal factors and their interactions in explaining variation in worm burdens. Host age could not be entered into either statistical model because of some incomplete subsets of data. However, it was evident that in general juvenile mice carried lower worm burdens compared with adults, although these increased towards the winter season. Host sex was not a significant factor, other than in making a contribution to a weak significant interaction between sex and site, arising from male bias in one site and female bias in the remaining two. The principal determinants of variation in worm burden were the extrinsic factors, site and season, with an approximately equal weighting, and their interaction. These effects arose because worm burdens were lower at Dungeness and showed quite different seasonal patterns to the Egham and Isle of Wight sites. We propose that the unique character of the Dungeness habitat was not conducive to optimal transmission of H. polygyrus throughout most of the year (excepting spring) and we suggest possible explanations for these observations.

Type
Research Papers
Information
Journal of Helminthology , Volume 72 , Issue 2 , June 1998 , pp. 93 - 100
Copyright
Copyright © Cambridge University Press 1998

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References

Abu-Madi, M.A. (1994) Epidemiological and molecular studies on Heligmosomoides polygyrus (Nematoda: Trichostrongylidae) in wild and laboratory mice. PhD Thesis, University of London.Google Scholar
Behnke, J.M., Pritchard, D.I., Wakelin, D., Park, J.R., McNicholas, A.M. & Gilbert, F.S. (1994) Effect of ivermectin on infection with gastro-intestinal nematodes in Sierra Leone. Journal of Helminthology 68, 187–195.Google Scholar
Bryant, V. (1973) Growth and respiration throughout the life cycle of Nematospiroides dubius Baylis, 1926, (Nematoda: Heligmosomidae) Parasitology 67, 245–251.CrossRefGoogle ScholarPubMed
Corbet, G.B. & Harris, S. (1991) The handbook of British mammals. Oxford, Blackwell Scientific Press.Google Scholar
Crawley, M.T. (1993) GLIM for ecologists. Oxford, Blackwell Scientific Press.Google Scholar
Elton, C., Ford, E.B., Baker, J.R. & Gardiner, A.D. (1931) The health and parasites of a wild mouse population. Proceedings of the Zoological Society of London 1931, 657–721.CrossRefGoogle Scholar
Fahmy, M.A.M. (1956) An investigation on the life cycle of Nematospiroides dubius (Nematoda: Heligmosomidae) with special reference to the free-living stages. Zeitschrift für Parasitenkunde 17, 394–399.Google Scholar
Ferry, B.W. & Waters, S.J.P. (1988) Natural wetlands on shingle at Dungeness, Kent, England. Biological Conservation 43, 27–41.Google Scholar
Gregory, R.D. (1991) Parasite epidemiology and host population growth: Heligmosomoides polygyrus (Nematoda) in enclosed wood mouse populations. Journal of Animal Ecology 60, 805–821.CrossRefGoogle Scholar
Gregory, R.D. (1992) On the interpretation of host–parasite ecology: Heligmosomoides polygyrus (Nematoda) in wild wood mouse (Apodemus sylvaticus) populations. Journal of Zoology 226, 109–121.CrossRefGoogle Scholar
Gregory, R.D., Keymer, A.E. & Clarke, J.R. (1990) Genetics, sex and exposure: the ecology of Heligmosomoides polygyrus (Nematoda) in the wood mouse. Journal of Animal Ecology 59, 363–378.Google Scholar
Gregory, R.D., Montgomery, S.S.J. & Montgomery, W.I. (1992) Population biology of Heligmosomoides polygyrus (Nematoda) in the wood mouse. Journal of Animal Ecology 61, 749–757.Google Scholar
Kerboeuf, D. (1978) The effects of time and temperature of storage on the infectivity of third-stage larvae of Heligmosomoides polygyrus (= Nematospiroides dubius) 1. Effects on the development to the adult stage in mice. Annales de Recherches Veterinaires 9, 153–159.Google Scholar
Lewis, J.W. (1968) Studies on the helminth parasites of the long-tailed field mouse, Apodemus sylvaticus sylvaticus from Wales. Journal of Zoology 154, 287–312.Google Scholar
Lewis, J.W. & Twigg, G.I. (1972) A study of the internal parasites of small rodents from woodland areas in Surrey. Journal of Zoology 166, 61–77.CrossRefGoogle Scholar
Montgomery, S.S.J. & Montgomery, W.I. (1988) Cyclic and non-cyclic dynamics in populations of the helminth parasites of wood mice Apodemus sylvaticus. Journal of Helminthology 62, 78–90.CrossRefGoogle ScholarPubMed
Montgomery, S.S.J. & Montgomery, W.I. (1989) Spatial and temporal variation in the infracommunity structure of helminths of Apodemus sylvaticus (Rodentia: Muridae). Parasitology 98, 145–150.Google Scholar
Montgomery, S.S.J. & Montgomery, W.I. (1990) Structure, stability and species interactions in helminth communities of wood mice Apodemus sylvaticus. International Journal for Parasitology 20, 225–242.CrossRefGoogle ScholarPubMed
O'Sullivan, H.M., Smal, C.M. & Fairley, J.S. (1984) A study of parasite infestations in populations of small rodents (Apodemus sylvaticus and Clethrionomys glareolus) on Ross Island, Killarney. Journal of Life Sciences, Royal Dublin Society 5, 29–42.Google Scholar
Sharpe, G.I. (1964) The helminth parasites of some small mammal communities. I. The parasites and their hosts. Parasitology 54, 145–154.CrossRefGoogle ScholarPubMed
Wilson, K. & Grenfell, B.T. (1997) Generalized linear modelling for parasitologists. Parasitology Today 13, 33–38.CrossRefGoogle ScholarPubMed