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dc.contributor.authorPurdey, D. C.en_US
dc.contributor.authorKing, Carolyn M.en_US
dc.contributor.authorLawrence, B.en_US
dc.date.accessioned2008-03-19T05:09:49Z
dc.date.available2007-04-02en_US
dc.date.available2008-03-19T05:09:49Z
dc.date.issued2004-09-01en_US
dc.identifier.citationPurdey, D.C., King, C.M. & Lawrence, B. (2004). Age structure, dispersion and diet of a population of stoats (Mustela erminea) in southern Fiordland during the decline phase of the beechmast cycle. New Zealand Journal of Zoology. 31(3), 205-225.en_US
dc.identifier.urihttps://hdl.handle.net/10289/230
dc.description.abstractThe dispersion, age structure and diet of stoats (Mustela erminea) in beech forest in the Borland and Grebe Valleys, Fiordland National Park, were examined during December and January 2000/01, 20 months after a heavy seed-fall in 1999. Thirty trap stations were set along a 38-km transect through almost continuous beech forest, at least 1 km apart. Mice were very scarce (<1 capture per 100 trap>nights, C/100TN) along two standard index lines placed at either end of the transect, compared with November 1999 (>60/100TN), but mice were detected (from footprints in stoat tunnels) along an 8 km central section of the transect (stations 14-22). Live trapping with one trap per station (total 317.5 trap nights) in December 2000 caught 2 female and 23 male stoats, of which 10 (including both females) were radio collared. The minimum range lengths of the two females along the transect represented by the trap line were 2.2 and 6.0 km; those of eight radio-tracked males averaged 2.9 ± 1.7 km. Stations 14-22 tended to be visited more often, by more marked individual stoats, than the other 21 stations. Fenn trapping at the same 30 sites, but with multiple traps per station (1333.5 trap nights), in late January 2001 collected carcasses of 35 males and 28 females (including 12 of the marked live-trapped ones). Another two marked males were recovered dead. The stoat population showed no sign of chronic nutritional stress (average fat reserve index = 2.8 on a scale of 1-4 where 4 = highest fat content); and only one of 63 guts analysed was empty. Nevertheless, all 76 stoats handled were adults with 1-3 cementum annuli in their teeth, showing that reproduction had failed that season. Prey categories recorded in descending frequency of occurrence were birds, carabid beetle (ground beetle), weta, possum, rat, and mouse. The frequencies of occurrence of mice and birds in the diet of these stoats (10% and 48%, respectively) were quite different from those in stoats collected in Pig Creek, a tributary of the Borland River (87%, 5%), 12 months previously when mice were still abundant. Five of the six stoat guts containing mice were collected within 1 km of stations 14-22.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherRSNZ Publishingen_NZ
dc.relation.urihttp://www.rsnz.org/publish/nzjz/2004/022.phpen_US
dc.rightsThe final, definitive version of this article has been published in the Journal, New Zealand Journal of Zoology, 31(3), (2004), (c) Royal Society of New Zealand at the Royal Society of New Zealand Journals Onlinewebpages.en_US
dc.subjectstoaten_US
dc.subjectMustela ermineaen_US
dc.subjecthome range widthen_US
dc.subjectradio trackingen_US
dc.subjectdiet analysisen_US
dc.subjectage structureen_US
dc.subjectmouseen_US
dc.subjectMus musculusen_US
dc.titleAge structure, dispersion and diet of a population of stoats (Mustela erminea) in southern Fiordland during the decline phase of the beechmast cycleen_US
dc.typeJournal Articleen_US
dc.identifier.doi10.1080/03014223.2004.9518373en_NZ
dc.relation.isPartOfNew Zealand Journal of Zoologyen_NZ
pubs.begin-page205en_NZ
pubs.elements-id30585
pubs.end-page225en_NZ
pubs.issue3en_NZ
pubs.volume31en_NZ


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