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The incidence of helminth parasites in a particular frog population

Published online by Cambridge University Press:  06 April 2009

E. Lees
E. Lees
Affiliation:
Department of Biological Sciences, Bradford Institute of Technology, Bradford
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Extract

1. Frogs were collected from a single area in the West Riding of Yorkshire and examined for adult helminth parasites. The following species were found: Polystoma integerrimum, Gorgoderina vitelliloba, Haplometra cylindracea, Dolichosaccus rastellus, Rhabdias bufonis, Cosmocerca ornata, Oswaldocruzia filiformis, Aplectana acuminata and Acanthocephalus ranae.

2. The seasonal incidence and intensity of infection was studied by monthly examinations of 2413 frogs over a period of 4 years. The highest incidence of parasitization by helminths occurred in the autumn. In general, when the incidence was high, the intensity of infection was also high.

3. The incidence of infection was generally higher in male than in female frogs. This effect of the host's sex was much more marked immediately before the breeding season than at any other time of the year.

4. Possible reasons for these variations in levels of infection are discussed.

Type
Research Article
Information
Parasitology , Volume 52 , Issue 1-2 , May 1962 , pp. 95 - 102
Copyright
Copyright © Cambridge University Press 1962

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References

REFERENCES

Baylis, H. A. (1928). Records of some parasitic worms from British vertebrates. Ann. Mag. Nat. Hist. (9), 19, 426–33.CrossRefGoogle Scholar
Baylis, H. A. (1939). Further records of parasitic worms from British vertebrates. Ann. Mag. Nat. Hist. (11), 4, 473–98.CrossRefGoogle Scholar
Brandt, B. B. (1936). Parasites of certain North Carolina Salientia. Ecol. Monogr. 6, 183–249.CrossRefGoogle Scholar
Dawes, B. (1946). The Trematoda. Cambridge University Press.Google Scholar
Grossman, T. & Sandner, H. (1953). Helmintofauna plazów Bialowieskiego Parku Narodowego. Acta Parasitol. Polonica 1, 345–52.Google Scholar
Joyeux, C. & Baer, J. G. (1927). Recherches sur le cycle évolutif du trématode Opisthioglyphe rastellus Olss. Bull. Biol. 61 4, 359–63.Google Scholar
Lees, E. & Bass, L. (1960). Sex hormones as a possible factor influencing the level of parasitization in frogs. Nature, Lond., 188, no. 4757, 1207–8.CrossRefGoogle ScholarPubMed
Markov, G. S. & Rogoza, M. L. (1949). Parasitic fauna of male and female grass frogs. C.R. Acad. Sci. U.R.S.S. 65, no. 3, 417–20. (In Russian.)Google Scholar
Markov, G. S. & Rogoza, M. L. (1953). Seasonal and microzonal differences in the parasitic fauna of grass frogs. C.R. Acad. Sci. U.R.S.S. 91, no. 1, 169–72. (In Russian.)Google Scholar
Markov, G. S. & Rogoza, M. L. (1955). Annual differences in the parasitic fauna of grass frogs (Rana temporaria L.). Zool. Zh. 34, 1203–9. (In Russian.).Google Scholar
Mazurmovich, B. N. (1951). Parasitic Worms of Amphibia. Kiev: Kiev University Press. (In Russian.)Google Scholar
Nicoll, W. (1926). A reference list of trematode parasites of British Amphibia. Parasitology, 18, 14–20.CrossRefGoogle Scholar
Smith, C. L. (1950). Seasonal changes in blood sugar, fat body, liver glycogen and gonads in the common frog, Rana temporaria. J. Exp. Biol. 26, 412–29.CrossRefGoogle Scholar