Navigation Links
Reservoirs may accelerate the spread of invasive aquatic species, researchers say

Just as disturbance makes a landscape susceptible to invasion by alien plant species, the construction of reservoirs around the globe could be contributing to the accelerating spread of exotic aquatic species, according to a Forum article in the June 2005 issue of BioScience. John A. Havel of Southwest Missouri State University and Carol Eunmi Lee and M. Jake Vander Zanden of the University of Wisconsin survey evidence indicating that the physical and biological properties of reservoirs make them more likely to be invaded by exotic species than natural lakes. The researchers point to cases in which reservoirs are believed to have facilitated the rapid spread of invasive species.

The authors note that reservoir construction often leads to many-fold increases in the area of standing water in a region and that reservoirs typically replace varied stream habitats with habitats more similar to each other. Compared to natural lakes, reservoirs are usually shallower, more connected to other water bodies, and more laden with suspended and dissolved solids; they also have a higher and more variable flushing rate. Moreover, they typically contain unstable, recently assembled communities of stocked fish. An ecological hypothesis known as the fluctuating resource availability hypothesis suggests that these characteristics will enhance the susceptibility of reservoirs to invasion. Because reservoirs are more saline that freshwater lakes, Havel, Lee, and Vander Zanden propose they could provide a haven that helps invaders from saline and brackish habitats adapt to fresh water.

Several invasive species are suspected to have benefited from the use of reservoirs as avenues, including Daphnia lumholtzi, a water flea from the Old World tropics, and the copepod Eurytemora affinis. Some evidence indicates that the spread of zebra mussels, an economically important invasive species, may also have made use of reservoirs to spread. Havel, Lee, and Vander Zanden argue for rese arch aimed at comparing rates of invasion in freshwater lakes and reservoirs that are in similar geographic regions, to determine whether the rate in reservoirs is indeed higher, as predicted.


'"/>

Source:American Institute of Biological Sciences


Related biology news :

1. Agilent Technologies new genome analysis technology set to accelerate Australia fight against mesothelioma
2. TGen awarded $7.1 million to accelerate brain disease research
3. Redesigned protein accelerates blood clotting
4. Gene loss accelerates aging
5. Georgia Tech accelerates drug discovery with new IBM supercomputing cluster
6. One-dimensional diffusion accelerates molecular motors
7. Gene therapy accelerates healing of damaged skeletal muscle
8. Anti-bacterial additive widespread in U.S. waterways
9. HIV-1 spread through six transmission lines in the UK
10. Undesirable expatriates: Preventing the spread of invasive animals
11. Nanobacteria in clouds could spread disease, scientists claim
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/5/2017)... , April 5, 2017 Today HYPR ... that the server component of the HYPR platform is ... providing the end-to-end security architecture that empowers biometric authentication ... HYPR has already secured over 15 million users across ... manufacturers of connected home product suites and physical access ...
(Date:4/4/2017)... April 4, 2017   EyeLock LLC , a ... the United States Patent and Trademark Office (USPTO) has ... the linking of an iris image with a face ... represents the company,s 45 th issued patent. ... very timely given the multi-modal biometric capabilities that have ...
(Date:3/30/2017)... , March 30, 2017  On April 6-7, 2017, ... the Genome hackathon at Microsoft,s headquarters in ... competition will focus on developing health and wellness apps ... Hack the Genome is the first hackathon ... The world,s largest companies in the genomics, tech and ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... , Oct. 11, 2017  VMS BioMarketing, a leading ... a nationwide oncology Clinical Nurse Educator (CNE) network, which will ... need for communication among health care professionals to enhance the ... nurses, office staff, and other health care professionals to help ... breast cancer. ...
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... ... Administration (FDA) has granted orphan drug designation to SBT-100, its novel anti-STAT3 (Signal ... the treatment of osteosarcoma. SBT-100 is able to cross the cell membrane and ...
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... Dr. Bob ... at his local San Diego Rotary Club. The event entitled “Stem ... CA and had 300+ attendees. Dr. Harman, DVM, MPVM was joined by two ...
(Date:10/10/2017)... , ... October 10, 2017 , ... ... of 13 prestigious awards honoring scientists who have made outstanding ... a scheduled symposium during Pittcon 2018, the world’s leading conference and exposition for ...
Breaking Biology Technology: