dc.contributor.author |
Faulkner, Katelyn T.
|
|
dc.contributor.author |
Robertson, Mark P.
|
|
dc.contributor.author |
Rouget, Mathieu
|
|
dc.contributor.author |
Wilson, John R.U.
|
|
dc.date.accessioned |
2016-08-15T13:48:28Z |
|
dc.date.issued |
2016-09 |
|
dc.description.abstract |
Border control is one of the major approaches used by countries to limit the number of
organisms introduced as stowaways. However, it is not feasible to inspect all passengers,
cargo and vehicles entering a country, and so efforts need to be prioritised. Here we use
South Africa as a case study to assess, based on tourism and trade data and climate
matching techniques, the number of stowaway species that might be introduced
(‘colonisation pressure’) and the likelihood that once introduced, these organisms will
establish (‘likelihood of establishment’). These results were used to explore how the number
of species that are likely to establish (‘establishment debt’) varies across donor regions and
seasons. A simple theoretical model was then used to compare four strategies for prioritising
border control inspections: no prioritisation; based on colonisation pressure; based on likelihood of establishment; and based on both colonisation pressure and likelihood of
establishment. Establishment debt was greatest in southern hemisphere spring and autumn
when South Africa is climatically similar to northern hemisphere countries with which there
are strong, consistent trade and tourism links (i.e. colonisation pressure varied little
seasonally, but likelihood of establishment did vary across the seasons). Prioritising
inspections based on both colonisation pressure and the likelihood of establishment was
clearly the most effective strategy, with this strategy detecting at least 6% more potential
invaders than the other strategies. While there are many practical limitations to the
implementation of such prioritised inspection strategies, the results highlight the importance
of national and regional studies of establishment debt. |
en_ZA |
dc.description.department |
Zoology and Entomology |
en_ZA |
dc.description.embargo |
2017-09-30 |
|
dc.description.librarian |
hb2016 |
en_ZA |
dc.description.sponsorship |
This work was supported by the South African National Department of Environment Affairs
through its funding of the South African National Biodiversity Institute’s Invasive Species Programme. Additional funding was provided by the DST-NRF Centre for Invasion Biology. MR acknowledges funding from the South African Research Chairs Initiative of the Department of Science and Technology and National Research Foundation of South Africa. |
en_ZA |
dc.description.uri |
http://www.elsevier.com/locate/jenvman |
en_ZA |
dc.identifier.citation |
Faulkner, KT, Robertson, MP, Rouget, M & Wilson, JRU 2016, 'Border control for stowaway alien species should be prioritised based on variations in establishment debt', Journal of Environmental Management, vol. 180, pp. 301-309. |
en_ZA |
dc.identifier.issn |
0301-4797 (print) |
|
dc.identifier.issn |
1095-8630 (online) |
|
dc.identifier.other |
10.1016/j.jenvman.2016.05.023 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/56306 |
|
dc.language.iso |
en |
en_ZA |
dc.publisher |
Elsevier |
en_ZA |
dc.rights |
© 2016 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Journal of Environmental Management. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Environmental Management, vol. 180, pp. 301-309. 2016. doi : 10.1016/j.jenvman.2016.05.023. |
en_ZA |
dc.subject |
Biological invasion |
en_ZA |
dc.subject |
Prioritised inspection strategies |
en_ZA |
dc.subject |
Border control |
en_ZA |
dc.subject |
Climatic similarity |
en_ZA |
dc.subject |
Resource allocation |
en_ZA |
dc.subject |
Inspection effort |
en_ZA |
dc.title |
Border control for stowaway alien species should be prioritised based on variations in establishment debt |
en_ZA |
dc.type |
Postprint Article |
en_ZA |