Introduced land mammals and their impacts on the birds of the subantarctic Auckland Islands

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dc.contributor.author Russell, James en
dc.contributor.author Horn, SR en
dc.contributor.author Miskelly, CM en
dc.contributor.author Sagar, RL en
dc.contributor.author Taylor, RH en
dc.date.accessioned 2020-06-03T02:59:13Z en
dc.date.issued 2020 en
dc.identifier.citation Notornis 67(1):247-268 2020 en
dc.identifier.issn 0029-4470 en
dc.identifier.uri http://hdl.handle.net/2292/51284 en
dc.description.abstract Since the European discovery of the Auckland Islands, at least ten species of land mammals have been introduced there. Most arrived in the first half of the ninteenth century during periods of exploitation by sealers and whalers, followed by short-lived Māori and European settlements at Port Ross. Several species required multiple introductions before becoming established. For those populations that naturalised, cattle (Bos taurus) occupied Enderby Island and were eradicated by 1993, goats (Capra aegagrus hircus) remained restricted to the northern end of Auckland Island and were eradicated by 1991, while pigs (Sus scrofa) spread across the entire Auckland Island and remain there today. Rabbits (Oryctolagus cuniculus) established on Rose and Enderby Islands, and were eradicated in 1993. Cats (Felis catus) and mice (Mus musculus domesticus) were both first recorded in 1840 on Auckland Island and remain there today. Rats (Rattus spp.) have never established on the Auckland Islands. Collectively, cattle, goats, sheep (Ovis aries), pigs, and rabbits transformed habitats and altered ecosystem processes, and suppressed tussock, megaherbs, and woody vegetation on Auckland, Enderby, Rose, Ewing, and Ocean Islands. Cats and pigs are together responsible for the extirpation or major reduction of surface-nesting and burrowing seabird colonies, and ground-nesting land birds from Auckland Island. Before dying out on Enderby Island, pigs had similar impacts there. Mice have altered invertebrate community composition and are likely responsible for lower abundancies of wētā (Dendroplectron aucklandense) and large weevils (Curculionidae) on Auckland Island. Disappointment Island remained free of introduced mammals, while on Adams Island they had only fleeting and minimal impact. Humans also had direct impacts on birds through hunting for consumption, with large surface-nesting seabirds severely affected around Port Ross. The Auckland Island merganser (Mergus australis) was driven to extinction by presumed mammal predation and well-documented museum collecting. Eradication of pigs, cats, and mice from Auckland Island and Masked Island (Carnley Harbour) would remove the last introduced mammals from the New Zealand subantarctic region. en
dc.language English en
dc.publisher Ornithological Society of New Zealand Inc. en
dc.relation.ispartofseries Notornis en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri http://notornis.osnz.org.nz/author-instructions en
dc.subject Science & Technology en
dc.subject Life Sciences & Biomedicine en
dc.subject Ornithology en
dc.subject Zoology en
dc.subject birds en
dc.subject conservation en
dc.subject eradication en
dc.subject impacts en
dc.subject invasive en
dc.subject mammal en
dc.subject subantarctic en
dc.subject NEW-ZEALAND en
dc.subject FERAL PIGS en
dc.subject GOATS en
dc.subject VEGETATION en
dc.subject HISTORY en
dc.subject CATS en
dc.subject DIET en
dc.title Introduced land mammals and their impacts on the birds of the subantarctic Auckland Islands en
dc.type Journal Article en
pubs.issue 1 en
pubs.begin-page 247 en
pubs.volume 67 en
dc.rights.holder Copyright: Ornithological Society of New Zealand Inc. en
pubs.author-url http://notornis.osnz.org.nz/node/4475 en
pubs.end-page 268 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Article en
pubs.elements-id 798149 en
pubs.org-id Science en
pubs.org-id Biological Sciences en
dc.identifier.eissn 1177-7680 en
pubs.record-created-at-source-date 2020-06-22 en


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