HOME >> BIOLOGY >> NEWS
Undesirable expatriates: Preventing the spread of invasive animals

pproximately $19 billion dollars worth of damages annually in the U.S. (Pimentel et al. 2000. BioScience 50, 53).

The authors' exhaustive analysis, which drew on data from the 15th century to the 20th century, revealed an unsettling conclusion. For every four animals that made the transatlantic journey, one became invasive. Jeschke notes, "Our data indicate that once introduced, vertebrates have a 25% chance of becoming invasive. This figure, which appears to be true for other animals as well, is significantly higher than the 1% probability that dominates invasive species risk assessment. The 1% probability is based on plant invasions. Introduced animals do not act like introduced plants-- they appear to have a much higher invasion success rate."

Given that humans are the primary vehicles for transporting animals across the ocean, it's not surprising that animal introduction patterns between Europe and North America mirror immigration patterns. Overall, a higher proportion of European animals entered North America than vice-versa, with introductions peaking in the 19th century and decreasing thereafter. This decline can be attributed to a reduction in immigration following WWI and increased U.S. regulations on wildlife imports.

Conversely, North American introductions to Europe have been on the rise throughout the 20th century as more Americans immigrate to European countries. In many parts of Europe, regulations on imported wildlife are not as strict as the U.S. and Canada. Canadian goose, gray squirrel, and northern cottontails already populate the European countryside. In the absence of precautions, Jeschke speculates that North American animal introductions may become more common.

The bottom line-- vertebrate animals have a high rate of invasion success. Once established, they can act as biological pollutants that result in ecological and economic damages. "The best way to combat invasive species is to prevent them from being in
'"/>

Contact: Lori M. Quillen
quillenl@ecostudies.org
845-677-7600 x321
Institute of Ecosystem Studies
18-Apr-2005


Page: 1 2 3

Related biology news :

1. Preventing and treating lung cancer -- ESMO explores collaboration to fight cancer on all fronts
2. Preventing cancer without killing cells
3. Preventing obesity in children -- research highlights physical activity levels
4. Preventing graft-versus-host disease disease after bone marrow transplant -- without toxicity
5. Preventing ventilation induced lung injury depends on giving the right number of sighs
6. Preventing bacterial biofilms could help fight TB
7. Preventing fetal exposure to popular acne drug
8. Preventing a pandemic: Study suggests strategies for containing a flu outbreak
9. Size matters: Preventing large mammal extinction
10. Preventing muscle atrophy
11. Preventing SCD1 expression prevents obesity

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


(Date:2/21/2017)... N.Y. and PORTLAND, Ore. ... ) and the Avamere Family of Companies (Avamere Health ... today announced a six-month research study that will apply ... improve eldercare at senior living and health centers. By ... Avamere hopes to gain insights into physical and environmental ...
(Date:2/13/2017)... 13, 2017  RSA Conference -- RSA, a Dell ... designed to enhance fraud detection and investigation across ... RSA Fraud & Risk Intelligence Suite. The new ... additional insights from internal and external sources as ... their customers from targeted cybercrime attacks. ...
(Date:2/8/2017)... YORK , Feb. 8, 2017 About ... individual,s voice to match it against a stored ... such as pitch, cadence, and tone are compared ... require minimal hardware installation, as most PCs already ... for different transactions. Voice recognition biometrics are most ...
Breaking Biology News(10 mins):
(Date:2/24/2017)... ... 2017 , ... Chef Jodi Abel has returned from her three-week tour ... she gained a number of delicious recipes and new techniques to share with her ... Western Cape province. It is internationally renowned for its incredible wine farms, beautiful ...
(Date:2/24/2017)... 24, 2017  Aethlon Medical, Inc. (Nasdaq: ... its Chairman and CEO, Jim Joyce . ... Conference last Saturday, Bill Gates warned world ... people than nuclear weapons. Mr. Gates expressed his concern, ... agencies, that scientific terrorists have access to the necessary ...
(Date:2/24/2017)... , Feb. 24, 2017  Driven by ... biotechnology are now the fastest growing categories, finds ... Specialty Actives in Personal Care: Multi-regional Market Analysis ... and management consulting firm Kline. "Biotechnology ... that make them more effective for skin and ...
(Date:2/24/2017)... ... , ... FireflySci, Inc is an explosive small business that continues to grow ... bringing their powerful cuvette and spectrophotometer calibration to the spectroscopy world. ... on as they add yet another mark on the global map. , With distributors ...
Breaking Biology Technology:
Cached News: