Navigation Links
Climate change opens new avenue for spread of invasive plants
Date:11/19/2008

GAINESVILLE, Fla. Plants that range northward because of climate change may be better at defending themselves against local enemies than native plants.

So concludes a team of scientists including a University of Florida geneticist. The team's findings, reported in today's online edition of Nature, suggest that certain plants could become invasive if they spread to places that were previously too cold for them.

"This paper is the first to suggest that the mechanisms that aid invasive species when they move from one continent to the next may actually work within continents when climate change gradually extends the distributional range of a species," said Koen J.F. Verhoeven, an evolutionary biologist at The Netherlands Institute of Ecology. "Plants may be able to outrun, so to speak, their enemies from the southern range."

Often, exotic plants and animals are introduced to new continents or geographic regions by travelers and commerce. Separation from their natural enemies can drive their invasive success in the new range. But, increasingly, the distribution of many species is shifting because of climate change and changes in land use.

Led by scientists Tim Engelkes, Elly Morrin and Wim van der Putten of The Netherlands Institute of Ecology, with collaborators from the University of Florida, Wageningen University and Leiden University, the researchers compared exotic plant species that had recently established in Millingerwaard, a nature preserve in The Netherlands, with related native plant species from the same area.

"We set out to see whether the native and exotics responded differently to natural enemies such as herbivores or microorganisms in the soil," said Lauren McIntyre, an associate professor of molecular genetics and microbiology in UF's College of Medicine and a member of the UF Genetics Institute. "UF helped develop a statistical model that took into account the experimental design and had good power to detect the effects of herbivory."

Scientists grew six exotic and nine native plant species in pots with field-collected soil from the Millingerwaard area, allowing natural soil pathogenic microbes to accumulate in the pots. Then they removed the plants and replanted the soils with the same plant species.

The growth of native plants was reduced far more than the growth of exotic species, indicating natives were more vulnerable to natural soil-borne microbes.

In addition, all plant species were exposed to North African locusts and a widespread species of aphid. These herbivores were not expected to show a preference for either the native or the exotic species. But they preferred the native plants and left the exotic ones relatively alone.

Researchers say the findings help to better assess the ecological consequences of climate change. The success of exotic plants expanding their range in response to warmer climates may be comparable to invasive exotic plant species that arrive from other continents, representing an additional threat to biodiversity.


'/>"/>

Contact: John Pastor
jdpastor@ufl.edu
352-273-5815
University of Florida
Source:Eurekalert

Related biology news :

1. Climate change goes underground
2. Opportunity for students displaced by Katrina to assess climate vulnerability of Southeast US
3. Climate -- no smoking gun for Neanderthals
4. NASA celebrates a decade observing climate impacts on health of worlds oceans
5. NASA celebrates a decade observing climate impacts on health of worlds oceans
6. University and state agencies to forecast local health effects of climate change
7. A greenhouse in order to study the impact of climate change on plants
8. European lead in reading past climates from ice cores
9. International team of scientists warns of climate changes impact on global river flow
10. Heaps of climate gas
11. Nobel Peace Prize 2007 to intergovernmental panel on climate change
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/23/2017)... ARMONK, N.Y. , Aug. 23, 2017  The general public,s help ... the human microbiome—the bacteria that live in and on the human body ... ... bacteria in the human microbiome, starting with the gut. The project's goal ... in disease. Photo credit: IBM ...
(Date:6/23/2017)... and ITHACA, N.Y. , ... and Cornell University, a leader in dairy research, today ... bioinformatics designed to help reduce the chances that the ... the onset of this dairy project, Cornell University has ... for Sequencing the Food Supply Chain, a food safety ...
(Date:5/16/2017)... DALLAS , May 16, 2017   ... for health organizations, and MD EMR Systems ... certified development partner for GE, have established a ... Patient Portal product and the GE Centricity™ products, ... Centricity EMR. These new integrations ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... October 10, 2017 , ... ... (ADC) therapeutics, today confirmed licensing rights that give it exclusive global access ... developed in collaboration with Children’s Hospital Los Angeles (CHLA). Additionally, an ...
(Date:10/10/2017)... firm Parks Associates announced today that Tom Kerber , ... Meeting , October 11 in Scottsdale, Arizona . Kerber ... smart safety and security products impact the competitive landscape. ... Parks Associates: Smart Home Devices: Main Purchase Driver ... "The residential security market has experienced continued growth, and the introduction ...
(Date:10/10/2017)... PA (PRWEB) , ... October 10, 2017 , ... ... year’s recipients of 13 prestigious awards honoring scientists who have ... presented in a scheduled symposium during Pittcon 2018, the world’s leading conference and ...
(Date:10/9/2017)... Charlotte, N.C. (PRWEB) , ... October 09, 2017 , ... ... Purple announced Dr. Christopher Stubbs, a professor in Harvard University’s Departments of Physics and ... Dr. Stubbs was a member of the winning team for the 2015 Breakthrough Prize ...
Breaking Biology Technology: