Navigation Links
'Dirty dozen' invasive species threaten UK
Date:5/1/2013

The researchers, Dr Bellinda Gallardo and Dr David Aldridge from the University of Cambridge, focussed on the 'dirty dozen' a group of high-risk invasive aquatic plants and animals. Some, like the killer shrimp (Dikerogammarus villosus) and the bloody red mysid (Hemimysis anomala) are already in UK but have yet to spread. Others, such as the Asian clam (Corbicula fluminalis) and the marmokrebs, a crayfish (Procambarus fallax) may not yet have arrived.

Working with Species Distribution Models, which are routinely used to predict which regions most suit invasive species, the Cambridge pair made the models more accurate by including human factors such as population density, land-use and proximity to ports. Traditionally, the models are based on environmental conditions such as temperature and rainfall.

According to Dr Gallardo: "Invasive species need to be in the right place at the right time; they need the right environmental conditions, but they also need a helping hand from humans. This can happen intentionally, for example through introduction of commercial fish, or accidentally via hulls of boats, fishing equipment, or ballast water."

The role of humans, plus invasive species' great adaptability, make predicting their spread challenging. By including both human and environmental factors in the models, the researchers found the risk of invasion in the UK was increased by 20% in coastal, densely populated areas and places near transport routes, with the Thames, Anglian and Humber river basins at highest risk.

"These river basins already host many aquatic invaders. This is particularly worrying because invasive species often modify their habitat, making it more favourable to other invaders. This can eventually lead to a process known as invasional meltdown," she says.

Tackling the problem is costly. Invasive species are the second biggest threat to biodiversity after habitat loss. Around 12,000 invasive species have already arrived in Europe, where their combined impact on native biodiversity, agriculture, health and the economy costs at least 12 billion a year.

By producing more accurate maps, the study should allow environmental managers and policy makers to target resources at the most invasive species and the areas most under threat. "Effective management of invasive species depends on rapid detection and control. Our maps are fundamental to direct biomonitoring efforts towards areas most suitable for the 'dirty dozen', so they can be detected as soon as possible," Dr Gallardo explains.

"At present, environmental managers and policy makers have few tools to make informed decisions about the risk posed by existing and future invaders. Our study gives them basic information to prioritise management and control decisions regarding 12 of the most worrisome freshwater invasive species."

The study is also timely because of climate change, which might further favour invasive species, she adds: "Invasive species might better adapt to climate change than natives because of their wide environmental tolerance and highly competitive biological traits. And because they usually reproduce rapidly, invasive species may be better than native species at resisting and recovering from extreme events."


'/>"/>

Contact: Becky Allen
beckyallen@ntlworld.com
44-079-498-04317
Wiley
Source:Eurekalert

Related biology news :

1. NASH diagnosis set to improve with non-invasive tool
2. Notre Dame researchers are using new technologies to combat invasive species
3. Invasive species: Understanding the threat before its too late
4. Study offers new insights on invasive fly threatening US fruit crops
5. Combating USDAs top-ranked invasive insect
6. Discovery of Africa moth species important for agriculture, controlling invasive plants
7. Second-hand smoke increases risk of invasive meningococcal disease in children
8. Invasive grass fuels increased fire activity in the West
9. Tracking invasive cheatgrass role in larger, more frequent Western fires
10. New study evaluates noninvasive technology to determine heart disease
11. University of Minnesota engineering researchers discover new non-invasive method for diagnosing epilepsy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/10/2016)... March 10, 2016   Unisys Corporation (NYSE: ... Protection (CBP) is testing its biometric identity solution at ... to help identify certain non-U.S. citizens leaving the ... test, designed to help determine the efficiency and accuracy of ... February and will run until May 2016. --> ...
(Date:3/9/2016)... BEACH GARDENS, Fla. , March 9, 2016 ... identity management authentication and enrollment solutions, today announced ... DigitalPersona ® Altus multi-factor authentication ... IT and InfoSec managers to step-up security where ... Washington, DC . ...
(Date:3/3/2016)... , March 3, 2016  2016FLEX, organized by ... week highlighting advancements in flexible, hybrid and printed ... setting attendance - have gathered for short courses, ... field of electronics. The Flex Conference celebrates its ... for companies, R&D organizations, and universities contributing to ...
Breaking Biology News(10 mins):
(Date:5/26/2016)... May 26, 2016 Q BioMed Inc. ... will be a featured presenter at the 5th Annual Marcum ... New York City at the Grand Hyatt Hotel. ... Q BioMed Inc. CEO, is scheduled to begin at 11a.m ... company,s business strategy, recent developments and outline milestones for the ...
(Date:5/25/2016)... ... May 25, 2016 , ... Lajollacooks4u has become a rising hotspot for ... one of its top attractions. Fortune 500 companies, such as Illumina, Hewlett-Packard, Qualcomm ... and intimate team-building experience. , Each event kicks off with an olive oil and ...
(Date:5/25/2016)... ... ... at the University of Athens say they have evidence that the variety of different ... lead to one good one. Surviving Mesothelioma has just posted an article on the ... 98 mesothelioma patients who got a second kind of drug therapy after ...
(Date:5/24/2016)... 24, 2016   MedyMatch Technology Ltd ., the data ... real-time decision support tools in the emergency room, announced today ... Israeli Advanced Technology Industries (IATI) BioMed Conference. ... 15th National Life Sciences and Technology Week, and is ... Hotel in Tel Aviv, Israel . ...
Breaking Biology Technology: