| pubmed-article:12184833 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:12184833 | lifeskim:mentions | umls-concept:C0030498 | lld:lifeskim |
| pubmed-article:12184833 | lifeskim:mentions | umls-concept:C0035820 | lld:lifeskim |
| pubmed-article:12184833 | lifeskim:mentions | umls-concept:C0032659 | lld:lifeskim |
| pubmed-article:12184833 | lifeskim:mentions | umls-concept:C0035005 | lld:lifeskim |
| pubmed-article:12184833 | pubmed:issue | 1500 | lld:pubmed |
| pubmed-article:12184833 | pubmed:dateCreated | 2002-8-19 | lld:pubmed |
| pubmed-article:12184833 | pubmed:abstractText | Even though theoretical models show that parasites may regulate host population densities, few empirical studies have given support to this hypothesis. We present experimental and observational evidence for a host-parasite interaction where the parasite has sufficient impact on host population dynamics for regulation to occur. During a six year study of the Svalbard reindeer and its parasitic gastrointestinal nematode Ostertagia gruehneri we found that anthelminthic treatment in April-May increased the probability of a reindeer having a calf in the next year, compared with untreated controls. However, treatment did not influence the over-winter survival of the reindeer. The annual variation in the degree to which parasites depressed fecundity was positively related to the abundance of O. gruehneri infection the previous October, which in turn was related to host density two years earlier. In addition to the treatment effect, there was a strong negative effect of winter precipitation on the probability of female reindeer having a calf. A simple matrix model was parameterized using estimates from our experimental and observational data. This model shows that the parasite-mediated effect on fecundity was sufficient to regulate reindeer densities around observed host densities. | lld:pubmed |
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| pubmed-article:12184833 | pubmed:language | eng | lld:pubmed |
| pubmed-article:12184833 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12184833 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:12184833 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12184833 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:12184833 | pubmed:month | Aug | lld:pubmed |
| pubmed-article:12184833 | pubmed:issn | 0962-8452 | lld:pubmed |
| pubmed-article:12184833 | pubmed:author | pubmed-author:HalvorsenOO | lld:pubmed |
| pubmed-article:12184833 | pubmed:author | pubmed-author:AlbonS DSD | lld:pubmed |
| pubmed-article:12184833 | pubmed:author | pubmed-author:IrvineR JRJ | lld:pubmed |
| pubmed-article:12184833 | pubmed:author | pubmed-author:StierEE | lld:pubmed |
| pubmed-article:12184833 | pubmed:author | pubmed-author:RopstadEE | lld:pubmed |
| pubmed-article:12184833 | pubmed:author | pubmed-author:LangvatnRR | lld:pubmed |
| pubmed-article:12184833 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:12184833 | pubmed:day | 7 | lld:pubmed |
| pubmed-article:12184833 | pubmed:volume | 269 | lld:pubmed |
| pubmed-article:12184833 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:12184833 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:12184833 | pubmed:pagination | 1625-32 | lld:pubmed |
| pubmed-article:12184833 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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| pubmed-article:12184833 | pubmed:year | 2002 | lld:pubmed |
| pubmed-article:12184833 | pubmed:articleTitle | The role of parasites in the dynamics of a reindeer population. | lld:pubmed |
| pubmed-article:12184833 | pubmed:affiliation | Centre for Ecology and Hydrology, Hill of Brathens, Banchory AB31 4BW, UK. s.albon@ceh.ac.uk | lld:pubmed |
| pubmed-article:12184833 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:12184833 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:12184833 | lld:pubmed |
