HOME >> BIOLOGY >> NEWS
Special section: Invasive species

Invasive non-native species are among the greatest threats to biodiversity worldwide. There are about 50,000 non-native species in the U.S. alone, costing about $125 billion each year in environmental damage and economic losses. While there are no easy answers, a new analysis shows that current approaches often just make the problem worse.

"Management and control of [non-native] species is perhaps the biggest challenge that conservation biologists will face in the next few decades," says Fred Allendorf of the University of Montana in Missoula, who edited a six-paper special section called "Population Biology of Invasive Species" in the February issue of Conservation Biology.

Key points in the special section include:

  • Arguments that species invasions are natural and so acceptable are false. While it is true that invasions have occurred throughout evolutionary history, people have greatly accelerated the rate of introductions so that there are far more invasions today than there were only a few hundred years ago. Similarly, arguments that new species will evolve to replace those lost to invasions are also flawed. Even if this is true and that's a big if -- it would take millions of years. This work is by David Lodge and Kristin Shrader-Frechette of the University of Notre Dame in Indiana.

  • It's hard to get rid of invasive species that benefit some people economically. For instance, the non-native brown trout has had huge effects on the freshwater ecosystems of New Zealand's South Island. The widespread brown trout eat five times as many mayfly larvae and other stream invertebrates, increasing the algae level six times and decreasing the nutrient levels in the water. Moreover, streams with brown trout often do not have native fish. But there is little support for eradicating the brown trout because the sport fishery is so popular, generating more than $300 million per year. On the positive side, the story of the brown trout helped
    '"/>


Contact: Fred Allendorf
fred.allendorf@mso.umt.edu
406-243-5503
Society for Conservation Biology
28-Jan-2003


Page: 1 2 3

Related biology news :

1. Special training may help people with autism recognize faces
2. Specialized brain helped ancient reptiles fly and hunt
3. Special report: Personal genomics
4. Special section: Habitat fragmentation can amplify
5. Specialty license plate to fund whale research
6. Special session planned at society of toxicology meeting ont he role of the environment in Parkinsons disease
7. Special four-day symposium on MTBE and drinking water
8. LSU Ag Center Brucellosis Specialist May Help Stem Bison Controversy
9. The Evolution Of Beauty, Part Of A Special Section On The Evolution Of Sex In The 25 September 1998 Science
10. Scientists Show How Defects Can Improve Technology In Science Magazines Special Issue On Materials Science
11. Successful Specialist Care For Cystic Fibrosis Patients From Childhood To Adulthood

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


(Date:10/26/2019)... , ... October 23, 2019 , ... ... Christina Hughes , to its executive leadership team. , As a market ... solutions allow growth-stage biotech and pharma companies to reduce timelines and improve quality ...
(Date:10/26/2019)... ... October 25, 2019 , ... ... built, helium-based leak testing instruments for the Pharmaceutical, Biotechnology, Medical Device and Food ... advanced helium leak detection system, the SIMS Model 1915+ . The SIMS ...
(Date:10/22/2019)... ... ... Greenberg Traurig, LLP’s global Life Sciences & Medical Technology Group ... Sector,” with German biotech strategy consulting firm, Catenion. The seminar will take place from ... . , Speakers from Greenberg Traurig and Catenion will discuss best practices and practical ...
Breaking Biology News(10 mins):
(Date:10/22/2019)... ... 22, 2019 , ... nQ Medical, Inc. of Cambridge, MA, was recognized in ... which was announced at a showcase event yesterday in Los Angeles. nQ competed against ... plans, and impressive near-term growth projections to be named one of the most fundable ...
(Date:10/22/2019)... ... October 22, 2019 , ... Enplug , a ... Notification System into its digital signage platform. The collaboration brings one of the ... for users to leverage their existing digital signage networks to quickly disseminate critical ...
(Date:10/17/2019)... , ... October 15, 2019 , ... ... leader among services that offer DNA Testing for health and/or genealogy research purposes. ... you look, it seems that people want to know more about themselves at ...
(Date:10/15/2019)... ... ... ARPR , an award-winning tech PR agency at the epicenter of the future of PR, ... the Year in the Ragan’s Health Care PR & Marketing Awards. This award marks the ... revealed today that its healthIT practice group grew by 18 percent in Q3 this year, ...
Breaking Biology Technology:
Cached News: