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dc.contributor.authorChown, S.L.
dc.contributor.authorSpear, D.
dc.contributor.authorLee, J.E.
dc.contributor.authorShaw, J.D.
dc.date.accessioned2010-11-03T12:52:01Z
dc.date.available2010-11-03T12:52:01Z
dc.date.issued2009-10
dc.identifier.citationChown, S.L., Spear, D., Lee, J.E. and Shaw, J.D. (2009). Animal introductions to southern systems: lessons for ecology and for policy. African Zoology, 44(2), 248-262en
dc.identifier.urihttp://hdl.handle.net/123456789/758
dc.description.abstractNumerous animal species have been introduced to areas from which they were previously absent, and many of these have become invasive, with substantial impacts. However, in other cases, impacts are assumed from theory. Empirical demonstrations are uncommon, making evidence-based conservation policy difficult to achieve. Here we review the broader ecological and conservation lessons from recent work on non-indigenous species in two southern systems, the policy implications thereof, and the subsequent changes to policy as a result of this work. First, we discuss invasions in the Antarctic region. Strong relationships exist between numbers of animal invasions and numbers of human visitors to Southern Ocean Islands, abiotic factors are often limiting for introduced species, homogenization across islands differs among taxonomic groups, and control actions can rapidly result in unintended consequences. This knowledge has influenced national policy and decisions within the Antarctic Treaty System. Second, we discuss ungulate introductions and translocations, both in South Africa and elsewhere. We show that substantial homogenization has resulted from both processes. However, firm evidence for impacts of ungulate introductions and translocations is sometimes difficult to find, despite the theoretical likelihood thereof. Such a lack of information may have profound consequences for the effective implementation of policy.en
dc.description.sponsorshipCentre of Excellence for Invasion Biologyen
dc.format.extent350011 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherZoological Society of Southern Africaen
dc.subjectbarriersen
dc.subjectbiological invasionsen
dc.subjectlegislationen
dc.subjectmammalsen
dc.subjectpropagule pressureen
dc.subjectMarion Islanden
dc.subjectSouth Africaen
dc.titleAnimal introductions to southern systems: lessons for ecology and for policyen
dc.typeJournalArticlesen
dc.cibjournalAfrican Zoologyen
dc.cibprojectNAen


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