Navigation Links
Climate change may wake up 'sleeper' weeds
Date:4/15/2009

Climate change will cause some of Australia's potential weeds to move south by up to 1000km, according to a report by scientists at CSIRO's Climate Adaptation Flagship.

Weeds cost Australia more than $4 billion a year either in control or lost production and cause serious damage to the environment.

In an address today in Perth to the GREENHOUSE 09 conference on climate change, CSIRO researcher, Dr John Scott, said, however, that those cost estimates were only based on the damage caused by weeds known to be active in Australia.

"Out there, throughout the nation, are many weed species lying low but with the potential to take off and add to the economic and social burden of weed control," Dr Scott said.

"One critical unknown is what these lurking weeds will do under climate change. Will their distributions change? Will they spread north or south, east or west, and will these movements change them into full-blown pest species?"

A recent CSIRO report for the Australian Government's Land and Water Australia looked at what effects climate changes anticipated for 2030 and 2070 might have on the distribution of 41 weeds that pose a threat to agriculture ("sleeper" species) and the natural environment ("alert" species).

"We found that climate change will cause most of these weeds to shift south, with wet tropical species making the greatest move over 1000km," Dr Scott said.

"The regions most at threat from alert and sleeper weeds, both under the current climate and under climate change, are south east Australia, followed by the south west."

Karroo thorn (Acacia karroo), rosewood (Tipuana tipu) and kochia (Bassia scoparia) were found to pose the greatest threat under climate change while white weeping broom (Retama raetam) and fringed dodder (Cuscuta suaveolens) were predicted to have the highest risk of establishing in new areas.

"The predicted move south by both native and introduced plants would produce a 'vacuum' in northern Australia so, to prevent lurking species from invading, a new list of alert and sleeper weeds for this region needs to be developed," Dr Scott said.

The report also found that while the area currently infested by the most widespread weeds will decrease under climate change, the area of high risk would still be large.


'/>"/>

Contact: Julie Carter, CSIRO Entomology
julie.carter@csiro.au
61-262-464-040
CSIRO Australia
Source:Eurekalert

Related biology news :

1. Biofuels could hasten climate change
2. International climate change researchers meet, review latest findings
3. Ecologists question effects of climate change on infectious diseases
4. Climate change aims need to be better integrated
5. Scientists find climate change to have paradoxical effects in coastal wetlands
6. Great Basins Bear Lake reveals records of past climate
7. Mighty diatoms: Global climate feedback from microscopic algae
8. Climate change: Global risks, challenges and decisions
9. Human aspects of climate change to be focus of conference at Illinois
10. Climate change affecting Europes birds now, say researchers
11. Eugene-Springfield face Upper Willamette climate threats
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/19/2016)... , Nov. 18, 2016 Securus Technologies, ... solutions for public safety, investigation, corrections and monitoring, announced ... smaller competitor, ICSolutions, to have an independent technology judge ... the most modern high tech/sophisticated telephone calling platform, and ... customers that they do most of what we do ...
(Date:11/15/2016)...  Synthetic Biologics, Inc. (NYSE MKT: SYN), a ... gut microbiome, today announced the pricing of an ... common stock and warrants to purchase 50,000,000 shares ... the public of $1.00 per share and accompanying ... offering, excluding the proceeds, if any from the ...
(Date:6/27/2016)... Research and Markets has announced the addition of the ... The report forecasts the biometrics ... a CAGR of 12.28% during the period 2016-2020. ... with inputs from industry experts. The report covers the market landscape ... includes a discussion of the key vendors operating in this market. ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... MA (PRWEB) , ... December 02, 2016 , ... Robots ... Light Event on December 3rd, 2016. The event, which is held on the ... work with helping Americans with Disabilities back into the workplace. Suitable Technologies is partnering ...
(Date:12/2/2016)... December 2, 2016 The immunohistochemistry (IHC) ... at a CAGR of 7.3% during the forecast period of 2016 ... diagnostic laboratories segment accounted for the largest share of immunohistochemistry (IHC) ... , ... global immunohistochemistry (IHC) market spread across 225 pages, profiling 10 companies ...
(Date:11/30/2016)... ... November 30, 2016 , ... BEI Kimco, a brand ... a flexure design that ensures high alignment accuracy by preventing unwanted shaft rotation. ... suited where extreme precision is required, such as in medical equipment, laboratory instrumentation, ...
(Date:11/30/2016)... , November 30, 2016 ... a few players hold a dominant share in the ... River Laboratories International, Inc., and Merck KGaA, held a ... 2015. Transparency Market Research observes that these companies are ... on development products that are do not require rabbit ...
Breaking Biology Technology: