HOME >> BIOLOGY >> NEWS
Disease opened door to invading species in California

CORVALLIS, Ore. - Plant and animal diseases can play a major and poorly appreciated role in allowing the invasion of exotic species, which in turn often threatens biodiversity, ecological function and the world economy, researchers say in a new report.

In particular, a plant pathogen appears to have opened the gate for the successful invasion of non-native grasses into much of California, one of the world's largest documented cases of invading species and one that dramatically changed the history and ecology of a vast grassland ecosystem.

The study, published today in Proceedings of the National Academy of Sciences, a professional journal, should improve the understanding of invasive species and possibly suggest new tools to combat them, said researchers at Oregon State University.

"Even if we can't control all the diseases that help species invade, at least now we know to consider diseases when studying invasion," said Elizabeth Borer, an assistant professor of zoology at OSU. "In analyzing the ecology of exotic plant or animal species, it's clear that diseases are one part of the equation."

About 50,000 exotic species have been introduced into the United States, and the havoc they wreak upon agricultural crops, wildlife, ranch animals, forests and grasslands costs about $137 billion a year, scientists say. Invading species are also responsible for about half of all native species that go extinct, studies show.

One of the primary theories of successful invading species, experts say, until now had been the "enemy release hypothesis," in which an invasive species is no longer constrained by whatever predators or control mechanisms kept it in check in its native habitat.

The new study, however, suggests diseases that are native to a region, or imported along with invasive species, may also play a key role in whether or not the invader becomes a significant problem.

In the case of California, some
'"/>

Contact: Elizabeth Borer
borer@science.oregonstate.edu
541-737-3701
Oregon State University
12-Mar-2007


Page: 1 2 3

Related biology news :

1. Disease-free mosquito bred to disease-carrier can have all disease-free progeny
2. Journal of Alzheimers Disease achieves significant impact factor
3. How the Biotech Revolution Is Changing the Way We Fight Disease
4. Digestive Disease Week 2007 spotlights breakthrough research in digestive health
5. Diseased brain cells more involved in ALS-associated motor neuron death
6. Disease can be our ally, not just our enemy, says new book by UCR evolutionary biologist
7. ASM Biodefense and Emerging Diseases Research Meeting
8. Top scientists meet for Global Conference on Stem Cell Therapy for Cardiovascular Diseases
9. U of S Vaccine and Infectious Disease Organization team discovers key step in flu virus replication
10. NSF, NIH award Ecology of Infectious Diseases grants
11. Disease of older adults now seen in young, obese adults

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


(Date:8/3/2020)... ... 03, 2020 , ... Accumen Inc. is helping healthcare get ... Spectrum Solutions, to provide COVID-19 saliva testing kits nationally. , “Accumen has ... than 10 years. Early in the COVID-19 crisis, we identified supply chain gaps ...
(Date:7/18/2020)... ... July 16, 2020 , ... ... effectiveness of the Invictus Medical Neoasis™ active noise control device to attenuate typical ... that the Neoasis™ device attenuated the alarm sounds from patient monitors, ventilators and ...
(Date:7/4/2020)... ... July 03, 2020 , ... Aesthetics Biomedical (ABM), a ... awards for not only the products and treatments developed, but also the dedicated ... RF. All the brands built by ABM have received several honors already for ...
Breaking Biology News(10 mins):
(Date:8/7/2020)... ... August 06, 2020 , ... ... industries, announces it has closed on the purchase of greenfield for a new, ... TX and includes over 21 acres in the initial acquisition, with an option ...
(Date:7/31/2020)... ... July 29, 2020 , ... Diversified Technologies, Inc. ... can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. , DTI ... two switches in a push-pull configuration; yielding fast fall time for a capacitive ...
(Date:7/31/2020)... , ... July 30, 2020 ... ... cloud-based software for the life sciences industry, today announced the release of ... designed specifically for Medical Science Liaisons (MSLs) and other field medical professionals. ...
(Date:7/18/2020)... ... , ... dicentra , a leading Contract Research Organization ... pleased to announce that Charles Galea has joined its clinical trials division as ... accomplished and results-driven sales executive with over 10 years of expertise in business ...
Breaking Biology Technology:
Cached News: