Plant-parasitic nematodes as invasive species: characteristics, uncertainty and biosecurity implications

Singh, Sunil K. and Hodda, Mike and Ash, Gavin and Banks, N. C. (2013) Plant-parasitic nematodes as invasive species: characteristics, uncertainty and biosecurity implications. Annals of Applied Biology, 163 (3). pp. 323-350. ISSN 0003-4746

PDF - Published Version Restricted to Repository staff only Download (854kB) | Request a copy

Abstract

Few species of plant-parasitic nematodes (PPN) are currently recognised as
invasive but this is largely because of insufficient investigation and recognition.
We compared the characteristics of PPN with those of invasive species generally,
using the propagule pressure, abiotic and biotic factors (PAB) framework.
Most PPN had many of the characteristics of invasive species and hence
have the potential to become invasive. The most common characteristics
included: adaptations for human mediated dispersal; multiple entry pathways;
microscopic size; large number of propagules; high fecundity; many or
cosmopolitan hosts; short lifecycle; ability to survive harsh or unfavourable
conditions; ability to vary sex ratios; and ability to overcome host plant
resistance. Information is lacking for many characteristics of many species and
their impacts remain unquantified, which leaves some important unanswered
questions and challenges for assessing PPN as invasive species. However many
economically important PPN species have not been recognised as invasive, even
when most of the known characteristics and data suggests they should be.

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 04:48
Last Modified:	17 Oct 2016 04:48
URI:	https://repository.usp.ac.fj/id/eprint/9405

Actions (login required)

View Item