Navigation Links
Home and away: How do invasive plant species dominate native species?
Date:2/1/2011

Invasive plant species present a serious environmental, economic and social problem worldwide as their abundance can lead to lost native biodiversity and ecosystem functions, such as nutrient cycling. Despite substantial research, little is known about why some species can dominate new habitats over native plants that technically should have the advantage.

A common but rarely tested assumption is that these plants are more abundant in introduced versus native communities, because they are behaving in special way. If this true and introduced species are behaving in a special way it means biosecurity screening procedures need to speculate on how species will behave once introduced, a very difficult task to get right.

A global collaboration called the Nutrient Network tested this 'abundance assumption' for 26 herbaceous species at 39 sites on four continents in a recent publication in the journal Ecology Letters. The lead author of 36, Jennifer Firn from the Queensland University of Technology and CSIRO, Australia found that the 'abundance assumption' did not hold for the majority of species with 20 of the 26 species examined having either a similar or lower abundance at introduced versus native sites.

"Our results suggest that invasive plant species have a similar or lower abundance at introduced and native range and that increases in species abundance are unusual. Instead, we found abundance at native sites can predict abundance at introduced sites, a criterion not currently used included in biosecurity screening programs. We also found sites in New Zealand and Switzerland for example were similar in species composition sharing in some cases more than 10 species, all with similar abundances" Dr. Firn said.

This study is the first to be published from a cooperative global experiment the Nutrient Network (http://nutnet.science.oregonstate.edu). The Nutrient Network is led at the site-level by individual researchers and coordinated through funding from NSF to Dr. Elizabeth Borer and Dr. Eric Seabloom from the University of Minnesota.

"The Nutrient Network is the only collaboration of its kind, where individual researchers have set-up the same experiment at sites around the world. For three years, we have been collecting population, community, and ecosystem-scale vegetation data, including species-specific distribution and abundance data, with standardized protocols across more than 60 sites around the world. The experimental design used is simple, but one that provides a new, global-scale approach for us to address many critical ecological issues such as invasive species and changing climates", Associate Prof. Borer said.


'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
Wiley-Blackwell
Source:Eurekalert

Related biology news :

1. Home and away: Are invasive plant species really that special?
2. Forest Service offers free guide to managing invasive plants
3. What triggers mass extinctions? Study shows how invasive species stop new life
4. Invisible invasive species
5. Invasive species -- the biggest threat to fish in the Mediterranean basin
6. Potential hemlock hybrids tolerant to invasive hemlock woolly adelgid
7. Montana State, partners in 6 states consider converting invasive plants to fuel
8. Auxogyn licenses noninvasive embryo assessment technology from Stanford University
9. New analysis weighs lost trade, costs to control invasive species against economic damages
10. NOAA divers capture invasive lionfish in the Virgin Islands National Park
11. Forest Service updates free guide to Invasive Plants in Southern Forests
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/20/2017)... DAL ) customers now can use fingerprints instead of their boarding ... ... biometrics to board aircraft at Reagan Washington National Airport ... Delta,s biometric boarding pass experience that launched in May at the ... to allow eligible Delta SkyMiles Members who are enrolled in CLEAR to ...
(Date:6/14/2017)... , June 15, 2017  IBM (NYSE: IBM ) ... international tech event dedicated to developing collaboration between startups and ... on June 15-17. During the event, nine startups will showcase ... value in various industries. France ... the international market, with a 30 percent increase in the ...
(Date:5/16/2017)... , May 16, 2017   Bridge ... health organizations, and MD EMR Systems , ... development partner for GE, have established a partnership ... Portal product and the GE Centricity™ products, including ... EMR. These new integrations will ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... PA (PRWEB) , ... October 10, 2017 , ... ... City Science Center’s FirstHand program has won a US2020 STEM Mentoring Award. Representatives ... the award for Excellence in Volunteer Experience from US2020. , US2020’s mission is ...
(Date:10/10/2017)... DALLAS , Oct. 10, 2017 International research firm ... IoT Strategy, will speak at the TMA 2017 Annual Meeting , ... key trends in the residential home security market and how smart safety ... ... "The ...
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... ... innovation and business process optimization firm for the life sciences and healthcare industries, ... conference in San Francisco. , The presentation, “Automating GxP Validation for Agile ...
(Date:10/9/2017)...  BioTech Holdings announced today identification and patenting ... stem cell therapy prevents limb loss in animal ... that treatment with ProCell resulted in more than ... to standard bone marrow stem cell administration.  Interestingly, ... of therapeutic effect.  ...
Breaking Biology Technology: