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Stop jumping the gun : a call for evidence-based invasive predator management

Doherty, Tim S. and Ritchie, Euan G. 2016, Stop jumping the gun : a call for evidence-based invasive predator management, Conservation letters : a journal of the Society for Conservation Biology, In press, pp. 1-8, doi: 10.1111/conl.12251.

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Title Stop jumping the gun : a call for evidence-based invasive predator management
Author(s) Doherty, Tim S.ORCID iD for Doherty, Tim S.
Ritchie, Euan G.ORCID iD for Ritchie, Euan G.
Journal name Conservation letters : a journal of the Society for Conservation Biology
Season In press
Start page 1
End page 8
Total pages 8
Publisher Wiley-Blackwell
Place of publication Chichester, Eng.
Publication date 2016
ISSN 1755-263X
Keyword(s) biological invasion
culling and eradication
feral cat
guardian animal
pest control
trophic cascade
wildlife management
Summary Invasive mammalian predators are major drivers of species extinctions globally. To protect native prey, lethal control is often used with the aim of reducing or exterminating invasive predator populations. The efficacy of this practice, however, is often not considered despite multiple practical and ecological factors that can limit success. Here, we summarize contemporary knowledge regarding the use and challenges of both lethal control and alternative approaches for reducing invasive predator impacts. As the prevailing management approach, we outline four key issues that can compromise the effectiveness of lethal control: release of herbivore and mesopredator populations, disruption of predator social systems, compensatory predator immigration, and ethical concerns. We then discuss the relative merits and limitations of four alternative approaches that may enhance conservation practitioner's ability to effectively manage invasive predators: top-predator conservation or reintroduction, maintaining habitat complexity, exclusion fencing, and behavioral and evolutionary ecology. Considerable uncertainty remains regarding the effectiveness of management approaches in different environmental contexts. We propose that the deficiencies and uncertainties outlined here can be addressed through a combination of adaptive management, expert elicitation, and cost-benefit analyses. Improved management of invasive predators requires greater consideration and assessment of the full range of management approaches available.
Language eng
DOI 10.1111/conl.12251
Field of Research 050299 Environmental Science and Management not elsewhere classified
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, The Authors
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Created: Fri, 03 Jun 2016, 11:26:04 EST

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