When does an alien become a native species? A vulnerable native mammal recognizes and responds to its long-term alien predator.

PloS One
Alexandra J R Carthey, Peter B Banks

Abstract

The impact of alien predators on native prey populations is often attributed to prey naiveté towards a novel threat. Yet evolutionary theory predicts that alien predators cannot remain eternally novel; prey species must either become extinct or learn and adapt to the new threat. As local enemies lose their naiveté and coexistence becomes possible, an introduced species must eventually become 'native'. But when exactly does an alien become a native species? The dingo (Canis lupus dingo) was introduced to Australia about 4000 years ago, yet its native status remains disputed. To determine whether a vulnerable native mammal (Perameles nasuta) recognizes the close relative of the dingo, the domestic dog (Canis lupus familiaris), we surveyed local residents to determine levels of bandicoot visitation to yards with and without resident dogs. Bandicoots in this area regularly emerge from bushland to forage in residential yards at night, leaving behind tell-tale deep, conical diggings in lawns and garden beds. These diggings were less likely to appear at all, and appeared less frequently and in smaller quantities in yards with dogs than in yards with either resident cats (Felis catus) or no pets. Most dogs were kept indoors at night, m...Continue Reading

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Citations

Oct 17, 2014·Biological Reviews of the Cambridge Philosophical Society·Alexandra J R Carthey, Peter B Banks
Jan 30, 2015·Ecology Letters·Wolf-Christian Saul, Jonathan M Jeschke
Mar 6, 2015·Oecologia·Alexandra J R Carthey, Peter B Banks
Jan 28, 2017·Scientific Reports·Helen M SmithPeter B Banks
Nov 29, 2017·Scientific Reports·Alexandra J R CartheyPeter B Banks
May 23, 2020·Biological Reviews of the Cambridge Philosophical Society·Megan C EdwardsPeter J Murray
May 3, 2020·Global Change Biology·Conrad SchittkoJonathan M Jeschke
Jun 4, 2020·Proceedings. Biological Sciences·Andrea AntonJaimie T A Dick
Jun 10, 2020·Biological Reviews of the Cambridge Philosophical Society·Marcelo H Cassini
Mar 28, 2013·Ambio·Tina HegerJonathan M Jeschke
Oct 22, 2019·Ecology and Evolution·Chandra N Jack, Maren L Friesen
Aug 24, 2018·Proceedings. Biological Sciences·Peter B BanksJenna P Bytheway
Feb 26, 2019·Frontiers in Zoology·J William O Ballard, Laura A B Wilson
May 29, 2021·Science·Anthony Ricciardi, Daniel Simberloff

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