dc.contributor.author |
Foxcroft, Llewellyn C.
|
|
dc.contributor.author |
Jarosık, Vojtech
|
|
dc.contributor.author |
Pysek, Petr
|
|
dc.contributor.author |
Richardson, D.M. (David Mark), 1958-
|
|
dc.contributor.author |
Rouget, Mathieu
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|
dc.date.accessioned |
2011-08-08T08:50:35Z |
|
dc.date.available |
2011-08-08T08:50:35Z |
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dc.date.issued |
2011-04 |
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dc.description.abstract |
Human land uses surrounding protected areas provide propagules for colonization of these areas by non-native species, and corridors between protected-area networks and drainage systems of rivers provide pathways for long-distance dispersal of non-native species. Nevertheless, the influence of protected-area boundaries on colonization of protected areas by invasive non-native species is unknown. We drew on a spatially explicit data set of more than 27,000 non-native plant presence records for South Africa's Kruger National Park to examine the role of boundaries in preventing colonization of protected areas by non-native species. The number of records of non-native invasive plants declined rapidly beyond 1500 m inside the park; thus, we believe that the park boundary limited the spread of non-native plants. The number of non-native invasive plants inside the park was a function of the amount of water runoff, density of major roads, and the presence of natural vegetation outside the park. Of the types of human-induced disturbance, only the density of major roads outside the protected area significantly increased the number of non-native plant records. Our findings suggest that the probability of incursion of invasive plants into protected areas can be quantified reliably. |
en |
dc.description.sponsorship |
SANParks, the Department of Science and Technology—
National Research Foundation Centre of Excellence for
Invasion Biology (C.I.B), and National Research Foundation
Incentive Fund for support. P.P. and V.J. were
supported by PRATIQUE (project KBBE-212459 of the
7th Framework Programme of the European Union), and
grants AV0Z60050516 (AS CR), 0021620828, LC06073
(MSMT CR) and 206/09/0563 (GA CR). P.P. acknowledges
support from a Praemium Academiae award from
the Academy of Sciences of the Czech Republic. D.M.R.
acknowledges support from C.I.B, National Research
Foundation, and Hans Sigrist Foundation. |
en_US |
dc.identifier.citation |
Foxcroft, LC, Jarosik, V, Pysek, P, Richardson, DM & Rouget, M 2011, 'Protected-area boundaries as filters of plant invasions', Conservation Biology, vol. 25, no. 2, pp. 400-405. |
en |
dc.identifier.issn |
0888-8892 (print) |
|
dc.identifier.issn |
1523-1739 (online) |
|
dc.identifier.other |
10.1111/j.1523-1739.2010.01617.x |
|
dc.identifier.uri |
http://hdl.handle.net/2263/17028 |
|
dc.language.iso |
en |
en_US |
dc.publisher |
Wiley Blackwell |
en_US |
dc.rights |
Wiley-Blackwell. The definite version is available at www.blackwell-synergy.com. This article is embargoed by the publisher until April 2012. |
en_US |
dc.subject |
Barriers to invasion |
en |
dc.subject |
Non-native invasive species |
en |
dc.subject |
Overland water flow |
en |
dc.subject |
Protected-area boundary |
en |
dc.subject.lcsh |
Plant invasions -- South Africa -- Kruger National Park |
en |
dc.subject.lcsh |
Alien plants -- South Africa -- Kruger National Park |
en |
dc.subject.lcsh |
Protected areas -- Management |
en |
dc.subject.lcsh |
National parks and reserves -- South Africa |
en |
dc.title |
Protected-area boundaries as filters of plant invasions |
en |
dc.type |
Postprint Article |
en |