CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Australian Systematic Botany   
Australian Systematic Botany
Journal Banner
  Taxonomy, Biogeography & Evolution of Plants
 
blank image Search
 
blank image blank image
blank image
 
  Advanced Search
   

Journal Home
About the Journal
Editorial Structure
Contacts
Content
Current Issue
Just Accepted
All Issues
Special Issues
LAS Johnson Review Series
Sample Issue
For Authors
General Information
Scope
Submit Article
Author Instructions
Open Access
Awards and Prizes
For Referees
Referee Guidelines
Review an Article
Annual Referee Index
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter LinkedIn

red arrow Best Student Paper
blank image
The Best Student Paper published in 2013 has been awarded to Andre Messina.

 

Article << Previous     |     Next >>   Contents Vol 16(1)

Worth the risk? Introduction of legumes can cause more harm than good: an Australian perspective

Q. Paynter, S. M. Csurhes, T. A. Heard, J. Ireson, M. H. Julien, J. Lloyd, W. M. Lonsdale, W. A. Palmer, A. W. Sheppard and R. D. van Klinken

Australian Systematic Botany 16(1) 81 - 88
Published: 25 March 2003

Abstract

Weeds are serious threats to Australia's primary production and biodiversity conservation. For example, a recent Australia Bureau of Statistics survey found that 47% of farmers across Australia have a significant weed problem. A literature review revealed that legumes represent a significant proportion of the national weed problem and most serious Australian legume weeds are exotic thicket-forming species that were deliberately introduced for their perceived beneficial properties, such as for shade and fodder, or even quite trivial reasons, such as garden ornamentals. The low economic value of the rangelands most of these species infest, compared with control costs, hinders chemical and mechanical control of these weeds, such that biological control, which takes time, is expensive to implement and has no guarantee of success, may represent the only economically viable alternative to abandoning vast tracts of land. We argue that, because the behaviour of an introduced species in a novel environment is so hard to forecast, better predictive techniques should be developed prior to further introductions of plant species into novel environments. We also discuss the potential of legumes currently being promoted in Australia to become weeds and suggest the recent trend of exporting Australian Acacia spp. to semiarid regions of Africa risks history repeating itself and the development of new weed problems that mirror those posed by Australian Acacia spp. in southern Africa.



Full text doi:10.1071/SB01025

© CSIRO 2003

blank image
Subscriber Login
Username:
Password:  

 
PDF (169 KB) $25
 Export Citation
 Print
  
    
Legal & Privacy | Contact Us | Help

CSIRO

© CSIRO 1996-2015