Navigation Links
Dry rivers, vibrant with culture and life
Date:5/7/2012

WASHINGTON'When the River Runs Dry' is a familiar song in Australia. Some rivers in the arid center of the continent flow only after a stiff monsoon season, and smaller tributaries all over the country commonly shrink to puddled potholes and dry river beds during the dry season. But rivers also run dry in more temperate climes. Much of the upper reaches and feeder streams of the great rivers of North America, and even the mighty Amazon, dry out seasonally.

Dry rivers are more than mere desiccated shells of their robustly flowing incarnations, says Australian ecologist Alisha Steward and colleagues. In the May issue of ESA's journal Frontiers in Ecology and the Environment, they contend that dry river ecology is under-researched and under-appreciated.

"I was drawn to dry stream ecology from working on river health monitoring and assessment programs," said Steward, a PhD student at Griffith University in Brisbane, Queensland. "Many potential river monitoring sites turned out to be dry and couldn't be sampled. It was very annoying! It started to get me thinking that 'dry' wasn't necessarily bad or unnatural - some rivers were naturally dry at particular times of the year."

Dry river beds have qualities and inhabitants distinct from their adjacent riversides, as well as from their wet-phase communities, says Steward. They are places of isolation and re-connection: when rivers flow, aquatic animals, plants and microorganisms, organic material, and nutrients flow as well.

Temporary rivers are conduits for biota even when dry, sometimes guiding animals through human-dominated landscapes that lack other continuous habitat. They demand great resilience of their permanent inhabitants, which must be able to survive the swings from immersion to dry land to wet again. Plants, algae, insects, fungi, and even fish have adapted to ride out the dry spells, sometimes seeming to resurrect themselves miraculously from the dust. In the mo
'/>"/>

Contact: Liza Lester
llester@esa.org
202-833-8773 x211
Ecological Society of America
Source:Eurekalert

Page: 1 2

Related biology news :

1. Is rainfall a greater threat to Chinas agriculture than warming?
2. New 3-D stem cell culture method published in JoVE
3. Cutting-edge science creating solutions for African agriculture
4. Monogamy reduces major social problems of polygamist cultures
5. Climate-smart agriculture should be livelihood-smart too
6. Soybean adoption came early by many cultures, archaeologists say
7. 1,200 speak up for Federal research funding for Food and Agriculture
8. San Diego Zoo scientists establish cell cultures of endangered frog
9. 3-D long-term bone marrow culture to analyze stromal cell biological function
10. Cell cultures from a machine
11. Pecan ipmPIPE: Harnessing the Internet for stakeholders in production agriculture
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/24/2015)... , Feb. 24, 2015 This report analyzes ... report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... . Annual estimates and forecasts are provided for the period ... for these markets. Market data and analytics are derived from ...
(Date:2/19/2015)... , Feb .19, 2015 Research and ... the addition of the "Military Electro-Optical / ... Sensor Technology, by Platform - Forecast to 2020" ... The military electro-optical/infrared systems market is expected to ... CAGR of 7.71%. This report segments ...
(Date:2/12/2015)... , Feb. 12, 2015 NXT-ID, Inc. (NASDAQ: ... "Company"), a biometric authentication company focused on the growing ... provisional patent 62/113114 for DISTRIBUTED METHOD AND ... The patent further establishes NXT-ID,s position in the ... property portfolio the ability for multiple devices to collaborate ...
Breaking Biology News(10 mins):World Iris Biometrics Industry 2World Iris Biometrics Industry 3World Iris Biometrics Industry 4World Iris Biometrics Industry 5World Iris Biometrics Industry 6World Iris Biometrics Industry 7World Iris Biometrics Industry 8World Iris Biometrics Industry 9World Iris Biometrics Industry 10World Iris Biometrics Industry 11Military Electro-Optical / Infrared Systems (Image Intensification, Laser, Infrared) Market - Forecast to 2020: Featuring Profiles of the Market Leaders on this $16 Billion market 2Military Electro-Optical / Infrared Systems (Image Intensification, Laser, Infrared) Market - Forecast to 2020: Featuring Profiles of the Market Leaders on this $16 Billion market 3NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 3
... The Gerontological Society of America is inviting all journalists ... largest interdisciplinary conference in the field of aging from ... charge. This event will be held at the ... National Harbor, MD, a new waterfront development adjacent to ...
... researchers at the University of Alberta have unlocked part of the ... children with some types of glaucoma end up with missing or ... DNA are called copy number variations (CNVs). The U of A ... in causing some types of pediatric glaucoma a disease that ...
... scientists, in collaboration with researchers from the University of ... differences in the natural mechanisms that turn off, or ... made by comparing the impact of inactivating a gene ... laboratory plant Arabidopsis, provides new insight into how one ...
Cached Biology News:Resilience in an aging society: GSA showcases cutting-edge meeting topics 2Resilience in an aging society: GSA showcases cutting-edge meeting topics 3Resilience in an aging society: GSA showcases cutting-edge meeting topics 4Corn researchers discover novel gene shut-off mechanisms 2Corn researchers discover novel gene shut-off mechanisms 3
(Date:3/6/2015)... NY (PRWEB) March 06, 2015 Transparency Market ... Vegetables and Other Crops - Global Industry Analysis, Size, Share, ... report, the global isoxaflutole market was valued at US$ 116.3 ... Mn by 2020, expanding at a CAGR of 5.1% from ... for isoxaflutole stood at 2,569.5 kilo tons in 2013. , ...
(Date:3/5/2015)... 5, 2015  DuPont (NYSE: DD ) ... Industrials Conference held today in New York ... Trerotola discussed strategy, progress and plans to accelerate ...  Strengthening and growing the company,s leading position in high-value ... strategic priority for DuPont. Discussing the company,s ...
(Date:3/5/2015)... 05, 2015 Plant disease specialists from ... at the Annual Meeting of The American Phytopathological Society. ... released online now at APSnet.org/meet . , The ... meeting, to be held August 1-5, 2015 in Pasadena, ... Field Trips, Workshops, and committee meetings, all carefully balanced ...
(Date:3/5/2015)... and TORONTO , March 5, ... a clinical-stage company developing new therapeutics and molecular diagnostics ... that William G. Rice , Ph.D., Chairman, President ... 27th Annual ROTH Conference on Tuesday, March 10 th ... Carlton, Laguna Niguel, CA. Dr. ...
Breaking Biology Technology:Isoxaflutole Market is Expected to Reach US$ 163.0 Mn by 2020 : Transparency Market Research 2Isoxaflutole Market is Expected to Reach US$ 163.0 Mn by 2020 : Transparency Market Research 3DuPont Leader Highlights Strategy, Progress and Plans to Accelerate Growth in Advanced Materials and Discusses Near-Term Outlook 2DuPont Leader Highlights Strategy, Progress and Plans to Accelerate Growth in Advanced Materials and Discusses Near-Term Outlook 3DuPont Leader Highlights Strategy, Progress and Plans to Accelerate Growth in Advanced Materials and Discusses Near-Term Outlook 4American Phytopathological Society Announces Annual Meeting Daily Schedule 2Aptose Biosciences to Present at the 27th Annual ROTH Conference 2Aptose Biosciences to Present at the 27th Annual ROTH Conference 3
... world leader in clinical trial support services, today announced ... located in Austin, TX, is a leader in the ... "True Human" monoclonal antibody into clinical trials. XBiotech,s lead ... being developed to treat diseases such as cancer, atherosclerosis, ...
... ARBOR, Mich., June 2, 2011 Adeona Pharmaceuticals, Inc. ... innovative medicines for serious central nervous system diseases, announced ... clinical study evaluating reaZin along with near-term ... statistical analysis with the Company,s scientific advisors, Adeona intends ...
... June 2, 2011 Sequenom, Inc. (NASDAQ: ... analysis solutions, today announced it and its subsidiary Sequenom ... $30.0 million financing commitment from Silicon Valley Bank’s San ... to support the development and commercialization of new products ...
Cached Biology Technology:C3i Inc to Provide Full-Service Technology Support and Oracle Clinical, Oracle Remote Data Capture Business Process Outsourcing to XBiotech, Inc 2Adeona Announces Positive Alzheimer's Subgroup Analysis that Supports Additional Clinical Study of Proprietary Zinc-Based Therapy 2Adeona Announces Positive Alzheimer's Subgroup Analysis that Supports Additional Clinical Study of Proprietary Zinc-Based Therapy 3Adeona Announces Positive Alzheimer's Subgroup Analysis that Supports Additional Clinical Study of Proprietary Zinc-Based Therapy 4Adeona Announces Positive Alzheimer's Subgroup Analysis that Supports Additional Clinical Study of Proprietary Zinc-Based Therapy 5Adeona Announces Positive Alzheimer's Subgroup Analysis that Supports Additional Clinical Study of Proprietary Zinc-Based Therapy 6Sequenom Enters Into New $30.0 Million Credit Facility 2Sequenom Enters Into New $30.0 Million Credit Facility 3Sequenom Enters Into New $30.0 Million Credit Facility 4
... is formulated for covering tissue sections and cell ... OR alcohol insoluble end products. UltraMount ... Fast Red or AEC that require an aqueous ... as DAB. No heating is required prior to ...
... Rabbit polyclonal to JAK2 (phospho ... tested applications). Antigen: ... JAK2 around the phosphorylation site of ... Entrez Gene ID: ...
Rabbit polyclonal to JNK1 (phospho T183 + Y185) ( Abpromise for all tested applications). entrezGeneID: 5599 SwissProtID: P45983...
... ( Abpromise for all tested applications). ... conjugated to KLH derived from within residues ... amino acid sequence is proprietary)(Peptide available as ... Gene ID: 55693 ...
Biology Products: