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The dispersion of Echinococcus granulosus in the intestine of dogs

Lymbery, A.J., Hobbs, R.P. and Thompson, R.C.A. (1989) The dispersion of Echinococcus granulosus in the intestine of dogs. Journal of Parasitology, 75 (4). pp. 562-570.

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    Abstract

    We studied the dispersion of adult Echinococcus granulosus in the intestine of experimentally infected dogs at 2 scales of habitat use. On a coarse scale, worms were found most frequently in the anterior third of the small intestine. On a fine scale, clumps or aggregations, typically of 4-5 worms in an area of 12 mm 2, occurred throughout the anterior two-thirds of the intestine. The most likely proximate cause of aggregative behavior is attraction between individual worms. There are at least 2 equally plausible ultimate causes of the behavior: to enhance cross-fertilization and to improve the quality of the environment. Restriction of worms to the anterior small intestine may be a consequence of aggregative behavior on a finer scale or a response to different proximate and ultimate factors.

    Publication Type: Journal Article
    Murdoch Affiliation: School of Veterinary Studies
    Publisher: American Society of Parasitologists
    URI: http://researchrepository.murdoch.edu.au/id/eprint/2507
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