Propagule size and the relative success of exotic ungulate and bird introductions to New Zealand

The American Naturalist
D M Forsyth, Richard P Duncan

Abstract

We investigated factors affecting the success of 14 species of ungulates introduced to New Zealand around 1851-1926. The 11 successful species had a shorter maximum life span and were introduced in greater numbers than the three unsuccessful species. Because introduction effort was confounded with other life-history traits, we examined whether independent introductions of the same species were more likely to succeed when a greater number of individuals were introduced. For the six species with introductions that both succeeded and failed, successful introductions always involved an equal or greater number of individuals than unsuccessful introductions of the same species. For all independent introductions, there was a highly significant relationship between the number of individuals introduced and introduction success. When data for ungulate and bird introductions to New Zealand were combined, a variable categorizing species as ungulate or bird was a highly significant predictor of introduction success, after variation in introduction effort was controlled. For a given number of individuals introduced, ungulates were much more likely to succeed than birds.

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Citations

May 17, 2006·Trends in Ecology & Evolution·Julie L LockwoodTim Blackburn
Dec 7, 2006·Biology Letters·John M DrakeDavid M Lodge
Oct 4, 2006·Proceedings. Biological Sciences·Richard P Duncan, David M Forsyth
May 31, 2013·Proceedings. Biological Sciences·William F FaganEmma E Goldberg
Jun 4, 2011·Biological Reviews of the Cambridge Philosophical Society·Andrew J Tanentzap, David A Coomes
Oct 9, 2007·Ecology·Xavier FauvergueFranck Courchamp
Nov 23, 2013·Ecological Applications : a Publication of the Ecological Society of America·Marjorie J WonhamBrian Leung
Oct 29, 2003·The American Naturalist·Julian D Olden, N LeRoy Poff
Mar 31, 2010·Ecological Applications : a Publication of the Ecological Society of America·Stephen N BennettPeter Corbett
Feb 12, 2008·Molecular Ecology·Jim R MuirheadHugh J Macisaac
Jan 16, 2008·Molecular Ecology·Gentile Francesco FicetolaClaude Miaud
Feb 13, 2013·The Journal of Animal Ecology·Elodie VerckenXavier Fauvergue
Sep 6, 2012·Evolutionary Applications·Xavier FauvergueRuth A Hufbauer
Aug 22, 2015·Ecology Letters·Isabella CapelliniChris Venditti
May 27, 2016·The Journal of Heredity·Jeremy D WilsonJane M Hughes
Jul 4, 2012·Journal of Human Evolution·Graeme D Ruxton, David M Wilkinson
Jun 14, 2003·Proceedings. Biological Sciences·Kevin J GastonSteven L Chown
Sep 11, 2003·Proceedings. Biological Sciences·Stanislav Pribil, Jeff E Houlahan

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