{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,17]],"date-time":"2026-05-17T22:53:31Z","timestamp":1779058411773,"version":"3.51.4"},"reference-count":27,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2009,4,6]],"date-time":"2009-04-06T00:00:00Z","timestamp":1238976000000},"content-version":"unspecified","delay-in-days":12606,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[1974,10]]},"abstract":"<jats:p>Golden hamsters were given plerocercoids of <jats:italic>Diphyllobothrium dendriticum<\/jats:italic> either singly or in groups of 2, 4, 8 or 15. There was a higher rate of recovery of worms from hamsters given many (8 and 15) than from those given few (1, 2 or 4) plerocercoids. The difference in rate of recovery of worms was present from 2 h after administration of plerocercoids and persisted up to day 20 when experiments were ended. Denser tapeworm populations had the smallest individuals and some of them contained worms with primary strobilae at the start of egg production. The size of the tapeworm population did not influence the prepatent time. Also, with the common gull there was a higher rate of recovery of worms when plerocercoids were given in groups. These results are discussed in relation to aspects of the life-cycle of <jats:italic>D. dendriticum<\/jats:italic> where the natural final host is most probably normally infected by a larger number of plerocercoids at the same time.<\/jats:p>","DOI":"10.1017\/s0031182000047995","type":"journal-article","created":{"date-parts":[[2009,6,5]],"date-time":"2009-06-05T17:00:14Z","timestamp":1244221214000},"page":"149-160","source":"Crossref","is-referenced-by-count":17,"title":["Some effects of population density in infections of <i>Diphyllobothrium dendriticum<\/i> (Nitzsch) in golden hamster (<i>Mesocricetus auratus<\/i> Waterhouse) and common gull (<i>Larus canus<\/i> L.)"],"prefix":"10.1017","volume":"69","author":[{"given":"Odd","family":"Halvorsen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Karin","family":"Andersen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2009,4,6]]},"reference":[{"key":"S0031182000047995_ref013","volume-title":"Fundamentals of Ecology","author":"Odum","year":"1961"},{"key":"S0031182000047995_ref018","first-page":"74","article-title":"Host\u2013parasite relations of Hymenolepis fraterna in the rat and the mouse","volume":"18","author":"Shorb","year":"1933","journal-title":"American Journal of Hygiene"},{"key":"S0031182000047995_ref019","doi-asserted-by":"publisher","DOI":"10.1016\/0020-7519(71)90004-X"},{"key":"S0031182000047995_ref009","first-page":"130","article-title":"Studies of the helminth fauna of Norway. 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On the taxonomy and biology of plerocercoids of Diphyllobothrium Cobbold, 1858 (Cestoda, Pseudophyllidea) from northwestern Europe","volume":"18","author":"Halvorsen","year":"1970","journal-title":"Nytt Magasin for Zoologi"},{"key":"S0031182000047995_ref012","doi-asserted-by":"publisher","DOI":"10.1007\/BF00260407"},{"key":"S0031182000047995_ref025","first-page":"193","article-title":"The incidence and degree of infection of Gadus morhua L. 1785 with Abothrium gadi Beneden, 1871 (Cestoda: Pseudophyllidea)","volume":"19","author":"Williams","year":"1971","journal-title":"Norwegian Journal of Zoology"},{"key":"S0031182000047995_ref016","doi-asserted-by":"publisher","DOI":"10.1016\/0014-4894(61)90040-6"},{"key":"S0031182000047995_ref020","volume-title":"Lov og tilfeldighet","volume":"1","author":"Sverdrup","year":"1964"},{"key":"S0031182000047995_ref006","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182000079890"},{"key":"S0031182000047995_ref022","first-page":"245","article-title":"The rate of growth of the tapeworm Diphyllobothrium latum (L.)","volume":"19","author":"Wardle","year":"1941","journal-title":"Canadian Journal of Research"},{"key":"S0031182000047995_ref023","doi-asserted-by":"publisher","DOI":"10.1139\/cjr37d-015"},{"key":"S0031182000047995_ref024","first-page":"16","article-title":"Egg-production by Hymenolepis nana var. fraterna and egg infectivity after passage from mice with light, moderate and heavy worm burdens","volume":"44","author":"Weinmann","year":"1958","journal-title":"Journal of Parasitology"},{"key":"S0031182000047995_ref027","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182000019892"},{"key":"S0031182000047995_ref021","first-page":"28","article-title":"Studies of the helminth fauna of Norway. 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