Singh, Sunil K. and Paini, Dean and Ash, Gavin and Hodda, Mike (2014) Prioritising plant-parasitic nematode species biosecurity risks using self organising maps. Biological Invasions, 16 . pp. 1515-1530. ISSN 1387-3547
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Abstract
The biosecurity risks from many plantparasitic
nematode (PPN) species are poorly known
and remain a major challenge for identifying potentially
invasive species. A self organising map (SOM)
was used to prioritise biosecurity risks from PPN to the
whole of continental Australia as well as each of the
states and the Northern Territory separately. The SOM
used the recorded worldwide distributions of 250
systematically selected species from 43 genera, and
identified 18 different countries spanning Asia, Africa,
North and Central America, Europe and the Pacific
with very similar PPN assemblages to Australia as a
whole. Many of the species in these countries are not
recorded in Australia, and therefore pose a biosecurity
risk. Analysed separately, the states and territories
were identified as forming five separate clusters, each
with a different region of the world, and with different
characteristic PPN. Many of the PPN found in the
regions clustered with an Australian state have not
been recorded from anywhere in Australia, and others
have very restricted distributions within Australia,
thus posing different biosecurity risks. The SOM
analysis ranked the risks of the different PPN based on
likelihoods of establishment. The rankings confirmed
the risks from frequently quarantined PPN, but more
importantly identified species, which upon further
investigation could be new threats. This method can be
used to identify previously overlooked species for
more detailed risk assessments
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > Q Science (General) S Agriculture > S Agriculture (General) |
| Divisions: | Faculty of Science, Technology and Environment (FSTE) > School of Biological and Chemical Sciences |
| Depositing User: | Fulori Nainoca - Waqairagata |
| Date Deposited: | 17 Oct 2016 04:53 |
| Last Modified: | 17 Oct 2016 04:53 |
| URI: | https://repository.usp.ac.fj/id/eprint/9406 |
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