The distribution and trophic ecology of an introduced, insular population of red-necked wallabies (Notamacropus rufogriseus)

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dc.contributor.author Havlin, Paige
dc.contributor.author Caravaggi, Anthony
dc.contributor.author Montgomery, W. Ian
dc.date.accessioned 2018-07-30T12:30:34Z
dc.date.available 2018-07-30T12:30:34Z
dc.date.issued 2018
dc.identifier.citation Havlin, P., Caravaggi, A. and Montgomery, W. I. (2017) 'The distribution and trophic ecology of an introduced, insular population of red-necked wallabies (Notamacropus rufogriseus)', Canadian Journal of Zoology, 96(4), pp. 357-365. doi: 10.1139/cjz-2017-0090 en
dc.identifier.volume 96
dc.identifier.issued 4
dc.identifier.startpage 357
dc.identifier.endpage 365
dc.identifier.issn 0008-4301
dc.identifier.uri http://hdl.handle.net/10468/6537
dc.identifier.doi 10.1139/cjz-2017-0090
dc.description.abstract Introduced non-native mammals can have negative impacts on native biota and it is important that their ecologies are quantified so that potential impacts can be understood. Red-necked wallabies (Notamacropus rufogriseus (Desmarest, 1817)) became established on the Isle of Man (IOM), an island with UNESCO Biosphere status, following their escape from zoological collections in the mid-1900s. We estimated wallaby circadial activity and population densities using camera trap surveys and random encounter models. Their range in the IOM was derived from public sightings sourced via social media. Wallaby diet and niche breadth were quantified via microscopic examination of faecal material and compared with those of the European hare (Lepus europaeus Pallas, 1778). The mean (+/- SE) population density was 26.4 +/- 6.9 wallabies/km(2), the mean (+/- SE) population size was 1742 +/- 455 individuals, and the species' range was 282 km(2), comprising 49% of the island. Wallaby diets were dominated by grasses, sedges, and rushes; niche breadth of wallabies and hares (0.55 and 0.59, respectively) and overlap (0.60) suggest some potential for interspecific competition and (or) synergistic impacts on rare or vulnerable plant species. The IOM wallaby population is understudied and additional research is required to further describe population parameters, potential impacts on species of conservation interest, and direct and indirect economic costs and benefits. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Canadian Society of Zoologists en
dc.relation.uri http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2017-0090#.W17q39VKiUl
dc.rights © 2018, the Authors. Published by Canadian Science Publishing on behalf of the Canadian Society of Zoologists. All rights reserved. This document is the Accepted Manuscript version of a Published Work that appeared in final form in the Canadian Journal of Zoology. To access the final edited and published work see https://doi.org/10.1139/cjz-2017-0090 en
dc.subject Non-native species en
dc.subject Population density en
dc.subject Diet en
dc.subject Activity en
dc.subject Macropod en
dc.subject Red-necked wallaby en
dc.subject Notamacropus rufogriseus en
dc.subject European hare en
dc.subject Lepus europaeus en
dc.title The distribution and trophic ecology of an introduced, insular population of red-necked wallabies (Notamacropus rufogriseus) en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Anthony Caravaggi, Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland. +353-21-490-3000. Email: anthony.caravaggi@ucc.ie en
dc.internal.availability Full text available en
dc.description.version Accepted Version en
dc.contributor.funder Manx BirdLife
dc.contributor.funder Manx Wildlife Trust
dc.description.status Peer reviewed en
dc.identifier.journaltitle Canadian Journal of Zoology en
dc.internal.IRISemailaddress anthony.caravaggi@ucc.ie en


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