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:6/3/2016)... 2016 Das DOTM ... Nepal hat ein 44 Millionen ... Kennzeichen, einschließlich Personalisierung, Registrierung und IT-Infrastruktur, an ... und Implementierung von Identitätsmanagementlösungen. Zahlreiche renommierte internationale ... teilgenommen, aber Decatur wurde als konformste und ...
(Date:5/24/2016)... -- Ampronix facilitates superior patient care by providing unparalleled technology to leaders of the ... latest premium product recently added to the range of products distributed by Ampronix. ... ... ... Display- Ampronix News ...
(Date:5/3/2016)... 2016  Neurotechnology, a provider of high-precision biometric ... Biometric Identification System (ABIS) , a complete system ... ABIS can process multiple complex biometric transactions with ... fingerprint, face or iris biometrics. It leverages the ... MegaMatcher Accelerator , which have been used ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... Prostate Cancer Foundation (PCF) is pleased to announce 24 new Young ... cancer. Members of the Class of 2016 were selected from a pool of ... More About the Class of 2016 PCF Young Investigators ... ... ...
(Date:6/23/2016)... ... ... STACS DNA Inc., the sample tracking software company, today announced that Dr. ... STACS DNA as a Field Application Specialist. , “I am thrilled that Dr. ... STACS DNA. “In further expanding our capacity as a scientific integrator, Hays brings a ...
(Date:6/23/2016)... , June 23, 2016 ... Hematology Review, 2016;12(1):22-8 http://doi.org/10.17925/OHR.2016.12.01.22 ... , the peer-reviewed journal from touchONCOLOGY, Andrew ... escalating cost of cancer care is placing an ... result of expensive biologic therapies. With the patents ...
(Date:6/23/2016)... ... June 23, 2016 , ... Velocity ... intelligent tools designed, tuned and optimized exclusively for Okuma CNC machining centers at ... result of a collaboration among several companies with expertise in toolholding, cutting tools, ...
Breaking Biology Technology:
Cached News: