Is there a cost of parasites to caribou?
Macroparasites potentially play a significant but often ignored role in the ecology and dynamics of wild ruminant populations. In the Arctic, parasites may impact on host populations by exacerbating the effects of seasonal and limited forage availability on the condition, fecundity and survival of i...
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| Veröffentlicht in: | Parasitology 2009-02, Vol.136 (2), p.253-265 |
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| creator | HUGHES, J. ALBON, S. D. IRVINE, R. J. WOODIN, S. |
| description | Macroparasites potentially play a significant but often ignored role in the ecology and dynamics of wild ruminant populations. In the Arctic, parasites may impact on host populations by exacerbating the effects of seasonal and limited forage availability on the condition, fecundity and survival of individuals. We studied the effects of abomasal nematode parasites and warble flies, Hypoderma tarandi, on condition and pregnancy of caribou Rangifer tarandus in the Dolphin-Union herd, Nunavut, Canada. By the end of winter, female caribou over 2 years old showed a significant decrease in body weight with increasing nematode burden, and a decrease in back fat depth with increasing warble abundance. These effects were exaggerated in the non-pregnant fraction of the population. High warble larvae burdens were also associated with significantly reduced probability of being pregnant. Our research demonstrates a negative relationship between parasites and caribou condition that may have consequences for their fitness. Additionally, we discuss the possibility that muskox Ovibos moschatus share some parasite species with the caribou and could lead to elevated burdens in the sympatric host. Parasites may have been a contributory factor in a previous winter range-shift of the caribou herd and this may reflect a form of apparent competition between the two ungulate species. |
| doi_str_mv | 10.1017/S0031182008005246 |
| format | Article |
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High warble larvae burdens were also associated with significantly reduced probability of being pregnant. Our research demonstrates a negative relationship between parasites and caribou condition that may have consequences for their fitness. Additionally, we discuss the possibility that muskox Ovibos moschatus share some parasite species with the caribou and could lead to elevated burdens in the sympatric host. Parasites may have been a contributory factor in a previous winter range-shift of the caribou herd and this may reflect a form of apparent competition between the two ungulate species.</description><identifier>ISSN: 0031-1820</identifier><identifier>EISSN: 1469-8161</identifier><identifier>DOI: 10.1017/S0031182008005246</identifier><identifier>PMID: 19102793</identifier><identifier>CODEN: PARAAE</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Abomasum - parasitology ; Animals ; Biological and medical sciences ; Body Fat Distribution ; Body weight ; competition ; Diptera ; Fecundity ; Female ; Fundamental and applied biological sciences. Psychology ; General aspects ; General aspects and techniques. Study of several systematic groups. Models ; Hypoderma tarandi ; Invertebrates ; Larvae ; Male ; Mammalia ; muskox ; Myiasis - parasitology ; Myiasis - veterinary ; Nematoda ; Nematoda - isolation & purification ; Nematode Infections - parasitology ; Nematode Infections - veterinary ; Ostertagia ; Ovibos moschatus ; parasite ; Parasites ; Pregnancy ; Rangifer tarandus ; Reindeer - growth & development ; Reindeer - parasitology ; Reindeer - physiology ; reproduction ; Ruminantia ; Ruminants - parasitology ; Seasons ; Teladorsagia ; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution ; warble fly ; Weight Loss - physiology ; Winter</subject><ispartof>Parasitology, 2009-02, Vol.136 (2), p.253-265</ispartof><rights>Copyright © 2008 Cambridge University Press</rights><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c469t-666c8929ef7bef6836cf8bf59bbf8168b418939b883873e80cdad648fb8406ad3</citedby><cites>FETCH-LOGICAL-c469t-666c8929ef7bef6836cf8bf59bbf8168b418939b883873e80cdad648fb8406ad3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0031182008005246/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>164,314,776,780,27901,27902,55603</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21199482$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19102793$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>HUGHES, J.</creatorcontrib><creatorcontrib>ALBON, S. D.</creatorcontrib><creatorcontrib>IRVINE, R. J.</creatorcontrib><creatorcontrib>WOODIN, S.</creatorcontrib><title>Is there a cost of parasites to caribou?</title><title>Parasitology</title><addtitle>Parasitology</addtitle><description>Macroparasites potentially play a significant but often ignored role in the ecology and dynamics of wild ruminant populations. In the Arctic, parasites may impact on host populations by exacerbating the effects of seasonal and limited forage availability on the condition, fecundity and survival of individuals. We studied the effects of abomasal nematode parasites and warble flies, Hypoderma tarandi, on condition and pregnancy of caribou Rangifer tarandus in the Dolphin-Union herd, Nunavut, Canada. By the end of winter, female caribou over 2 years old showed a significant decrease in body weight with increasing nematode burden, and a decrease in back fat depth with increasing warble abundance. These effects were exaggerated in the non-pregnant fraction of the population. High warble larvae burdens were also associated with significantly reduced probability of being pregnant. Our research demonstrates a negative relationship between parasites and caribou condition that may have consequences for their fitness. Additionally, we discuss the possibility that muskox Ovibos moschatus share some parasite species with the caribou and could lead to elevated burdens in the sympatric host. Parasites may have been a contributory factor in a previous winter range-shift of the caribou herd and this may reflect a form of apparent competition between the two ungulate species.</description><subject>Abomasum - parasitology</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Body Fat Distribution</subject><subject>Body weight</subject><subject>competition</subject><subject>Diptera</subject><subject>Fecundity</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General aspects</subject><subject>General aspects and techniques. Study of several systematic groups. 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D.</au><au>IRVINE, R. J.</au><au>WOODIN, S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Is there a cost of parasites to caribou?</atitle><jtitle>Parasitology</jtitle><addtitle>Parasitology</addtitle><date>2009-02-01</date><risdate>2009</risdate><volume>136</volume><issue>2</issue><spage>253</spage><epage>265</epage><pages>253-265</pages><issn>0031-1820</issn><eissn>1469-8161</eissn><coden>PARAAE</coden><abstract>Macroparasites potentially play a significant but often ignored role in the ecology and dynamics of wild ruminant populations. In the Arctic, parasites may impact on host populations by exacerbating the effects of seasonal and limited forage availability on the condition, fecundity and survival of individuals. We studied the effects of abomasal nematode parasites and warble flies, Hypoderma tarandi, on condition and pregnancy of caribou Rangifer tarandus in the Dolphin-Union herd, Nunavut, Canada. By the end of winter, female caribou over 2 years old showed a significant decrease in body weight with increasing nematode burden, and a decrease in back fat depth with increasing warble abundance. These effects were exaggerated in the non-pregnant fraction of the population. High warble larvae burdens were also associated with significantly reduced probability of being pregnant. Our research demonstrates a negative relationship between parasites and caribou condition that may have consequences for their fitness. Additionally, we discuss the possibility that muskox Ovibos moschatus share some parasite species with the caribou and could lead to elevated burdens in the sympatric host. Parasites may have been a contributory factor in a previous winter range-shift of the caribou herd and this may reflect a form of apparent competition between the two ungulate species.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><pmid>19102793</pmid><doi>10.1017/S0031182008005246</doi><tpages>13</tpages></addata></record> |
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| subjects | Abomasum - parasitology Animals Biological and medical sciences Body Fat Distribution Body weight competition Diptera Fecundity Female Fundamental and applied biological sciences. Psychology General aspects General aspects and techniques. Study of several systematic groups. Models Hypoderma tarandi Invertebrates Larvae Male Mammalia muskox Myiasis - parasitology Myiasis - veterinary Nematoda Nematoda - isolation & purification Nematode Infections - parasitology Nematode Infections - veterinary Ostertagia Ovibos moschatus parasite Parasites Pregnancy Rangifer tarandus Reindeer - growth & development Reindeer - parasitology Reindeer - physiology reproduction Ruminantia Ruminants - parasitology Seasons Teladorsagia Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution warble fly Weight Loss - physiology Winter |
| title | Is there a cost of parasites to caribou? |
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