Show simple item record

dc.contributor.authorPedersen, Åshild Ønvik
dc.contributor.authorStien, Jennifer
dc.contributor.authorEidesen, Pernille Bronken
dc.contributor.authorIms, Rolf Anker
dc.contributor.authorJepsen, Jane Uhd
dc.contributor.authorStien, Audun
dc.contributor.authorTombre, Ingunn
dc.contributor.authorFuglei, Eva
dc.date.accessioned2019-02-20T11:46:23Z
dc.date.available2019-02-20T11:46:23Z
dc.date.issued2017-12-13
dc.description.abstractBreeding geese are the preferred prey of the Arctic fox Vulpes lagopus in the high-Arctic Svalbard archipelago. According to the <i>apparent competition hypothesis (ACH)</i>, less-abundant prey species (e.g. ptarmigan, waders and small passerines) will experience higher predation rates when breeding in association with the more common prey (geese), due to spill-over predation by the shared predator. As many of these less-abundant species are endemic and/or red-listed, increased predation can have negative repercussions on their populations. We used a one-year baited artificial nest study to assess relative nest predation risk on Svalbard Rock Ptarmigan <i>Lagopus muta hyperborea</i>, small waders (Purple Sandpiper <i>Calidris maritima</i>, Dunlin <i>Calidris alpina</i>, plovers <i>Charadrius spp</i>., and <i>phalaropes Phalaropus spp</i>.) and Snow bunting <i>Plectrophenax nivalis</i> in two study locations contrasted by nesting density of Arctic breeding geese (Pink-footed Goose <i>Anser brachyrhynchus</i> and Barnacle Goose <i>Branta leucopsis</i>). We predicted higher predation risk for the less-abundant species in the study location with higher goose abundance. However, we found that relative nest predation risk was lower in the study location with higher goose abundance, thus being compatible with apparent mutualism and/or prey swamping mechanisms. Our results contrast with those from more structurally complex Arctic ecosystems and suggest that allochtonous subsidies from temperate ecosystems structure the predation pattern in this high-Arctic tundra ecosystem.en_US
dc.description.sponsorshipThe Fram Centre The Norwegian Polar Institute The Norwegian Institute for Nature Research The University Centre in Svalbarden_US
dc.descriptionThis is a post-peer-review, pre-copyedit version of an article published in <i>Polar Biology</i>. The final authenticated version is available online at: <a href=https://doi.org/10.1007/s00300-017-2223-z> https://doi.org/10.1007/s00300-017-2223-z</a>.en_US
dc.identifier.citationPedersen, Å.Ø., Stien, J., Eidesen, P.B., Ims, R.A., Jepsen, J.U., Stien, A., ... Fuglei, E. (2018). High goose abundance reduces nest predation risk in a simple rodent-free high-Arctic ecosystem. <i>Polar Biology, 41</i>(4), 619-627. https://doi.org/10.1007/s00300-017-2223-zen_US
dc.identifier.cristinIDFRIDAID 1527760
dc.identifier.doi10.1007/s00300-017-2223-z
dc.identifier.issn0722-4060
dc.identifier.issn1432-2056
dc.identifier.urihttps://hdl.handle.net/10037/14728
dc.language.isoengen_US
dc.publisherSpringer Verlag (Germany)en_US
dc.relation.journalPolar Biology
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.subjectVDP::Mathematics and natural scienses: 400::Zoology and botany: 480en_US
dc.subjectApparent competitionen_US
dc.subjectArctic fox V. lagopusen_US
dc.subjectArtificial nesten_US
dc.subjectPredatoren_US
dc.subjectPink-footed Gooseen_US
dc.subjectSvalbarden_US
dc.titleHigh goose abundance reduces nest predation risk in a simple rodent-free high-Arctic ecosystemen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


File(s) in this item

Thumbnail

This item appears in the following collection(s)

Show simple item record