HOME >> BIOLOGY >> NEWS
Invasive species harms native hardwoods by killing soil fungus

CAMBRIDGE, Mass. -- An invasive weed that has spread across much of the U.S. harms native maples, ashes, and other hardwood trees by releasing chemicals harmful to a soil fungus the trees depend on for growth and survival, scientists report this week in the Public Library of Science. The tree-stifling alien, garlic mustard (Alliaria petiolata), first introduced into the U.S. in the 1860s, has since spread to Canada and 30 states in the East and Midwest, with recent sightings as far west as Oregon.

While many mechanisms -- from the absence of natural predators or parasites to the disruption of long-established interactions among native organisms -- have been proposed to explain the success of invasive species, this new work is the first to show that an invasive plant harms native plants by thwarting the biological "friends" upon which they depend for growth. The work, which provides striking evidence for a unique process by which invaders harm native species, was conducted by researchers at Harvard University, the University of Guelph, the University of Montana, Purdue University, and the UFZ Centre for Environmental Research in Germany.

"While vanishing habitat caused by human activity is the number one threat to biodiversity, there is great concern over the impact of accidental and intentional dispersal of alien invasive species across the globe," says Kristina A. Stinson, a plant population biologist at the Harvard Forest, Harvard's ecology and conservation center in Petersham, Mass. "In North America, thousands of nonnative plants and animals have become established since European settlement and many more continue to be introduced. Some alien species cause little harm, while others can become very aggressive and radically transfigure their new habitat.

"The mechanisms for this phenomenon and its potential long term impacts remain poorly understood," Stinson adds, "but one possibility is that invasive species may disrupt fragile ecological
'"/>

Contact: Steve Bradt
steve_bradt@harvard.edu
617-496-8070
Harvard University
25-Apr-2006


Page: 1 2 3

Related biology news :

1. National Academies advisory: Invasive aquatic species in the Great Lakes
2. Invasive grass may impede forest regeneration
3. Invasive ants territorial when neighbors are not kin
4. Invasive sea squirts persist on Georges Bank
5. Invasive species alter habitat to their benefit
6. Invasive plants prefer disturbance in exotic regions over home regions
7. Invasive exotic plants helped by natural enemies
8. Invasive honeysuckle opens door for new hybrid insect species
9. Invasive parasite destroying fish species
10. Invasive plants: Arming to defend and win
11. Invasive sea squirt alive and well on Georges Bank

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/25/2020)... ... May 22, 2020 , ... Oxford Nanopore Technologies is in advanced ... the virus that causes COVID-19. , The LamPORE assay is designed to ... numbers, to very large numbers of samples. Hardware and reagents sit outside current, ...
(Date:5/21/2020)... ALPHARETTA, Ga. (PRWEB) , ... ... ... provider of Human Capital IntegritySM technology-based services specializing in background and medical ... with their COVID-19 return-to-work planning and keeping their workforce safe. The new ...
(Date:5/21/2020)... ... May 19, 2020 , ... ... solutions, today introduced BioMed to their award-winning computerized maintenance management system (CMMS), ... people and systems around biomedical engineering to better allocate staff time, automate ...
Breaking Biology News(10 mins):
(Date:5/21/2020)... ... , ... Threats to intellectual property, political pressure to lower ... wisdom that says the coronavirus pandemic will generally benefit biopharmaceutical companies, a new ... commercially weaker, dealing with delays in new product launches and with fewer resources ...
(Date:5/21/2020)... MN (PRWEB) , ... May 19, 2020 , ... Experienced ... help patients get dental implants and bone grafting through PIEZOSURGERY® technology. PIEZOSURGERY ... This is often used to prepare a patient for dental implants, especially when the ...
(Date:5/21/2020)... (PRWEB) , ... May 19, 2020 , ... Eaton Square ... the addition of Popper and Company, a biotechnology and medical technology-focused strategy and M&A ... to grow in the United States, linking US and Asia Pacific healthcare innovators with ...
(Date:5/21/2020)... ... May 20, 2020 , ... Exo (pronounced “Echo”) ... the company’s executive vice president of product engineering and report directly to CEO ... imaging space, bringing more than 24 years of technology leadership experience from Google, ...
Breaking Biology Technology:
Cached News: