Navigation Links
Climate-change set-back for acidified rivers
Date:12/12/2008

Climate change is hampering the long-term recovery of rivers from the effects of acid rain, as wet weather counteracts improvements, according to a new study by Cardiff University.

The research, by Professor Steve Ormerod and Dr Isabelle Durance of the School of Biosciences, took place over a 25 year period around Llyn Brianne in mid-Wales. Their findings are published online today in the British Ecological Society's Journal of Applied Ecology.

Carried out in 14 streams, the research involved assessing the number and variety of stream insects present each year. The scientists measured concentrations of acid and other aspects of stream chemistry, and documented climatic variation such as warmer, wetter winters.

With average acidity in rivers falling due to improvements in the levels of acid rain, the researchers expected that up to 29 insect species to have re-colonised the less acidic Welsh streams. These included sensitive mayflies and other groups often eaten by trout and salmon.

The findings however, showed a large short-fall in biological recovery, with just four new insect species added to the recovering rivers sampled.

Professor Steve Ormerod, who has led the project since it began in the early 1980s, said "Since the 1970s, there have been huge efforts to clean-up sources of acid rain, and our research shows that rivers are heading in the right direction. However, our results support the theory that acid conditions during rainstorms kill sensitive animals. During recent wetter winters, upland streams have been acidified enough to cancel out up to 40 percent of the last 25 years' improvements: climatic effects have clearly worked against our best efforts."

Dr Isabelle Durance, who co-authored the paper said: "More and more evidence now shows that some of the worst effects of climate-change on natural habitats come from interactions with existing stressors - in this case acid rain. A wider suggestion from our research is that by reducing these other environmental problems, we can minimise at least some climate-change impacts."


'/>"/>

Contact: Professor Steve Ormerod
ormerod@cardiff.ac.uk
0044-292-087-5871
Cardiff University
Source:Eurekalert

Related biology news :

1. UC Davis researcher leads climate-change discovery
2. Green coffee-growing practices buffer climate-change impacts
3. Climate change setback for acidified rivers
4. UC Riverside biologist receives prestigious MacArthur Fellowship
5. UC-Riverside partners with Chinese university to address Chinas environmental problems
6. Scientists from the UGR prove that rivers do not act as barriers for groundwater flow
7. Chemicals used as fire retardants could be harmful, UC-Riverside researchers say
8. Studying rivers for clues to global carbon cycle
9. Healthy rivers needed to remove nitrogen
10. ORNL study finds rivers play part in removing nitrogen
11. UC Riverside to host conference on stricter air quality standards for Southern California
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2017)...  Hunova, the first robotic gym for the rehabilitation and functional motor ... Genoa, Italy . The first 30 robots will be ... USA . The technology was developed and patented at the ... spin-off Movendo Technology thanks to a 10 million euro investment from entrepreneur ... ...
(Date:4/24/2017)... 2017 Janice Kephart , former ... Strategy Partners, LLP (IdSP) , today issues the ... Trump,s March 6, 2017 Executive Order: Protecting ... can be instilled with greater confidence, enabling the ... refugee applications are suspended by until at least ...
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced Design ... will feature emerging and evolving technology through its ... Summits will run alongside the expo portion of the ... panels and demonstrations focused on trending topics within 3D ... design and manufacturing event will take place June 13-15, 2017 ...
Breaking Biology News(10 mins):
(Date:6/22/2017)... ... June 22, 2017 , ... ... specialists DST Diagnostische Systeme & Technologien GmbH, thereby expanding its product portfolio to ... from hay fever, urticaria, asthma, atopic eczema or a food allergy. Allergies are ...
(Date:6/22/2017)... ... 22, 2017 , ... The first human cell line HeLa, established in 1951, ... on cross-contamination of human cell lines with HeLa cells were published. Until recently, cross-contamination ... labs and is associated with dramatic consequences for research. , In this educational ...
(Date:6/20/2017)... ... 2017 , ... Biologist Dawn Maslar MS has found a biomarker that she ... Women Choose: The Neuroscience of Meeting, Dating, Losing Your Mind, and Finding True Love, ... logical next step, in my estimation, was to scientifically track the evidence of commitment ...
(Date:6/20/2017)... ... June 20, 2017 , ... Do More with OHAUS , With the ... trusted supplier in the weighing industry, to extending its expertise across the entire laboratory ... immunoassays, hybridizations and more, allowing for its customers to 'Do More' in ...
Breaking Biology Technology: