Can threatened species survive where the top predator is absent?

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Show simple item record Wallach, Ad en_US O'Neill, Aj en_US Murray, Brad en_US
dc.contributor.editor en_US 2010-05-28T09:43:57Z 2010-05-28T09:43:57Z 2009 en_US
dc.identifier 2008007902 en_US
dc.identifier.citation Wallach Ad, Murray Brad, and O'Neill Aj 2009, 'Can threatened species survive where the top predator is absent?', Elsevier Sci Ltd, vol. 142, no. 1, pp. 43-52. en_US
dc.identifier.issn 0006-3207 en_US
dc.identifier.other C1 en_US
dc.description.abstract Top predators have been described as highly interactive keystone species. Their decline has been linked to secondary extinctions and their increase has been linked to ecological restoration. Several authors have recently argued that the dingo Canis lupus dingo is another example of a top predator that maintains mesopredators and generalist herbivores at low and stable numbers, thereby increasing biodiversity and productivity. Due to the sensitivity of many Australian species to introduced mesopredators and herbivores, the top predator hypothesis predicts that threatened species will not survive where dingoes are rare or absent. However, several threatened species have survived inside the Dingo Barrier Fence (DBF). We present a new view on the survival of the yellow-footed rock-wallaby Petrogale xanthopus xanthopus and the malleefowl Leipoa ocellata inside the DBF where the dingo is considered very rare, or in areas where the dingo is believed to have been eradicated several decades ago. We found that dingoes co-occurred with both threatened species. Dingoes were present at all wallaby colonies surveyed and occurred throughout their range. The most common predator detected in areas inhabited by the wallabies was in fact the dingo, and we found no significant difference between dingo abundance inside compared to outside the DBF. Malleefowl nests were found to be scent marked by dingoes at the three sites that we surveyed, despite these sites being close to human settlement and sheep farms, and in small and fragmented patches of wilderness. These findings provide further evidence for an association between the presence of dingoes and the survival of threatened species, which is in agreement with the top predator hypothesis. en_US
dc.language en_US
dc.publisher Elsevier Sci Ltd en_US
dc.relation.isbasedon en_US
dc.title Can threatened species survive where the top predator is absent? en_US
dc.parent Biological Conservation en_US
dc.journal.volume 142 en_US
dc.journal.number 1 en_US
dc.publocation Oxford en_US
dc.identifier.startpage 43 en_US
dc.identifier.endpage 52 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 060200 en_US
dc.personcode 0000052881 en_US
dc.personcode 010046 en_US
dc.personcode 0000052882 en_US
dc.percentage 100 en_US Ecology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity ISI:000262596900004 en_US
dc.description.keywords Canis lupus dingo; Keystone; Malleefowl; Rock-wallaby; Scent marking; Top-down regulation en_US
dc.staffid en_US

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