Navigation Links
Evolving designer ecosystem sheds light on unintended consequences
Date:9/3/2008

Amidst the semi-arid stretches of Phoenix, a visitor might blink twice at the sight of a sailboat cutting across the horizon. Tempe Town Lake, on the northern edge of Arizona State University (ASU), is just one of a multitude of lakes, small ponds, canals and dams combining flood control, water delivery, recreational opportunities and aesthetics, and altering perception of water availability and economics in the area.

What are the consequences of such human-made tinkering with land cover and hydrology on surrounding native ecosystems and biodiversity? This question forms the backdrop for a case study proffered by an ASU research team and published in the journal BioScience, which found that one of the most profound impacts of urbanization is the "reconfiguration of surface hydrology."

Lead author John Roach, now with Simbiotic Software in Missoula, Mont., ASU professors Nancy Grimm and J. Ramon Arrowsmith and other former graduate students mapped water resources and connectivity and tracked land-use change in the Indian Bend Watershed (IBW). The researchers, associated with the Central Arizona-Phoenix Long Term Ecological Research project (CAP-LTER) and the Integrative Graduate Education and Research Training (IGERT) in Urban Ecology funded by the National Science Foundation, found that construction of artificial lakes and canal systems along with extensive groundwater pumping have had "unintended impacts on nutrient cycling."

"As Phoenix grew from a small settlement to the large urban center it is today, it built an extensive canal network to bring water from the Salt, Verde, and Colorado rivers to agricultural fields and city taps," says Roach. "While these canals enabled farmers to grow crops in the desert, they also cut across stream channels, disrupting the flow of water and sediments from tributary networks to the main channel. In pristine streams, sandbars and other patches created where these sediments collect are oft
'/>"/>

Contact: Margaret Coulombe
margaret.coulombe@asu.edu
480-727-8934
Arizona State University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Binghamton University researchers investigate evolving malaria resistance
2. Evolving complexity out of junk DNA
3. Tuatara, the fastest evolving animal
4. Sudden Oak Death pathogen is evolving, says new study that reconstructs the epidemic
5. Zebra Technologies Enters Into Revolving Credit Agreement to Support Company Growth
6. Water is designer fluid that helps proteins change shape, scientists say
7. Study shows genetically engineered corn could affect aquatic ecosystems
8. Genetically engineered corn may harm stream ecosystems
9. At the root of nutrient limitation, ecosystems are not as different as they seem
10. New study finds biodiversity conservation secures ecosystem services for people
11. US-French research team to barcode an entire ecosystem
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... Mass. A novel robotic system that can operate ... being tested as part of a biomedical research partnership ... the aim of determining if the robot, in conjunction ... faster, more accurate, less costly, and less discomforting for ... to deliver prostate cancer therapies with greater precision. , ...
(Date:9/18/2014)... starts a "frequent flyers" program, fruit flies surely would ... has hosted increasing numbers of fruit fly research studies. ... in April, and another is scheduled launch to the ... launch in December. , Fruit flies are biomedical research ... space. Model organisms can reveal the basis for health ...
(Date:9/18/2014)... foliage season that prompts millions of Americans to undertake jaunts ... possibly last a little longer within a century, according to ... in some areas of the United States as summer temperatures ... the journal Global Ecology and Biogeography . For instance, ... the state tree of New Hampshire could change color ...
Breaking Biology News(10 mins):Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 2Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 3Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 4Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 5Buzzing with activity: Fruit flies orbit Earth for science 2Buzzing with activity: Fruit flies orbit Earth for science 3Buzzing with activity: Fruit flies orbit Earth for science 4Fall foliage season may be later, but longer on warmer Earth 2Fall foliage season may be later, but longer on warmer Earth 3Fall foliage season may be later, but longer on warmer Earth 4
... PARK, Md. There,s no "silver bullet" for ... policies, but they do need reforming, says University ... testified today before the Senate Armed Services Committee. ... operation during the Clinton administration and has served ...
... one in 3,500 people are affected with retinitis pigmentosa ... eventually leads to blindness. Now, a University of Missouri ... humans for two different forms of RP. This discovery ... both cats and humans. "The ...
... of our bodies, could lead to remarkable advances in the ... organised by the European Science Foundation was told. The ... in Granada, Spain, on 23 February 2009, was part of ... research in Europe in recognition of the potential of RNA ...
Cached Biology News:Reforming defense department acquisition policy: UM expert 2Cats' eye diseases genetically linked to diseases in humans 2RNA research strategy for Europe takes shape 2
(Date:9/18/2014)...   Sigma-Aldrich Corporation (Nasdaq: ... a new gene editing partnership with the University ... the partnership, Sigma-Aldrich will provide the Vector Core ... dedicated gene editing bioinformaticians. The partnership ... the U-M Medical School. One initiative already underway, ...
(Date:9/18/2014)... expensive. Now a team led by an engineer at ... designs that will let scientists slash the cost of ... , Syringe pumps are used to dispatch precise amounts ... in a reaction. They can also cost hundreds or ... team of Michigan Tech students published the library of ...
(Date:9/18/2014)... computing may have just taken an encouraging step forward. ... by chemist Stephen O,Brien have discovered new complex oxides ... both properties is very exciting scientifically for the coupling ... that might ultimately be designed, in logic circuits or ... however, has proved difficult until now. , Using an ...
(Date:9/18/2014)... 2014 Whitehouse Laboratories is pleased to ... Group and has acquired an additional 4,000 square feet ... Executive Complex adjacent to its current package testing facility. ... September 5th. Whitehouse Labs is in the process of ... for package testing. The prime location enables Whitehouse Labs ...
Breaking Biology Technology:Sigma-Aldrich, University of Michigan Medical School Establish CRISPR Core Lab Partnership 2Sigma-Aldrich, University of Michigan Medical School Establish CRISPR Core Lab Partnership 3Sigma-Aldrich, University of Michigan Medical School Establish CRISPR Core Lab Partnership 4Doing science just got cheaper -- and faster 2Oxides discovered by CCNY team could advance memory devices 2Whitehouse Labs Announces Package Testing Laboratory Expansion 2Whitehouse Labs Announces Package Testing Laboratory Expansion 3Whitehouse Labs Announces Package Testing Laboratory Expansion 4
... For low-throughput disruption of a wide range of biological samples , ... , , ... of biological samples, including animal,and human tissues and cells and plant tissue. , ... The TissueRuptor system provides: , ...
... , ... and easy silica-based DNA purification in convenient spin-column and 96-well-plate,formats. Most ... for mechanical disruption and reducing,hands-on time. Optimized protocols for specific sample ... veterinary pathogen research applications. , ...
... Tracy Worzella and Brad Larson , Promega Corporation, Madison, WI, USA ... Application Note 138 ... , , Correlated measurement of ... Monitoring of both luminescence and fluorescence output signals from , one assay ...
Cached Biology Technology:TissueRuptor System 2TissueRuptor System 3DNA purification from pig ears to bird blood using proven DNeasy Technology 2Promegas Multiplexed Cell Viability and Apoptosis Assays performed on the PHERAstar 2Promegas Multiplexed Cell Viability and Apoptosis Assays performed on the PHERAstar 3Promegas Multiplexed Cell Viability and Apoptosis Assays performed on the PHERAstar 4Promegas Multiplexed Cell Viability and Apoptosis Assays performed on the PHERAstar 5
Mouse anti-hepatitis delta virus Class: Antibody Product Group: Bacterial and Viral Antigen...
Mouse monoclonal [YLI-90] to Ly49I (Biotin) ( Abpromise for all tested applications)....
Rabbit polyclonal to KIAA1276 ( Abpromise for all tested applications). entrezGeneID: 27146 SwissProtID: Q9ULE4...
Rabbit polyclonal to IL23 P19 ( Abpromise for all tested applications). Antigen: Synthetic 16 amino acid peptide from near the amino terminus of human IL23 P19 Entrez Gene ID: 51561 Swiss...
Biology Products: