Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Long-Term Observations in the Tropics Linked to Global Climate Change

18.10.2012
Reports of declining ice coverage and drowning polar bears in the Arctic illustrate dramatic ecosystem responses to global climate change in Earth’s polar regions.

But in this first-ever account of a long-term project in the southern Caribbean, a Stony Brook professor and his colleagues report in this week’s Proceedings of the National Academy of Sciences U.S.A. that tropical ecosystems are also affected by global climatic trends - and with accompanying economic impacts.

In an article entitled, “Ecosystem responses in the southern Caribbean Sea to global climate change,” Dr. Gordon Taylor and colleagues from Stony Brook University’s School of Marine and Atmospheric Sciences (SoMAS), as well as the University of South Florida, University of South Carolina and two Venezuelan institutions (EDIMAR, Fundación de la Salle de Ciencias Naturales and Universidad de Oriente) provide an analysis of 14 years of continuous monthly oceanographic observations in the southern Caribbean off the coast of Venezuela. The research, known as the CARIACO Ocean Time-Series Program, has been continually funded by the National Science Foundation since 1995.

The researchers report how the complex food web overlying the Cariaco Basin has changed in this relatively short time frame. Microscopic plankton production has steadily declined and the species of plants supporting the food web have shifted. These ecosystem changes have affected the way this region exchanges carbon dioxide (CO2) with the atmosphere and, in part, caused local sardine fisheries to collapse and thus have a negative impact on Margarita Island economy.

The researchers link these ecosystem changes to declining upwelling of nutrient-rich waters caused by weakening Trade Winds in the region and an average sea surface warming of 1°C during their observations. According to the authors, all these changes trace back to the global heat budget, corresponding to climatic shifts in well-known indices of atmospheric circulation. This is the first report to link long-term, shipboard time-series oceanographic and local meteorological observations in the Tropics with global scale climatic changes.

The CARIACO Ocean Time-Series Program is currently funded by NSF to continue monthly sampling until the end of 2013 and has a five-year renewal proposal pending. “We will continue with the same measurements,” said Dr. Taylor. “This also includes looking at ocean acidification, molecular characterization of microbial communities and cycling of major elements.”

Office of Media Relations | Newswise Science News
Further information:
http://www.stonybrook.edu

More articles from Ecology, The Environment and Conservation:

nachricht International network connects experimental research in European waters
21.03.2017 | Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB)

nachricht World Water Day 2017: It doesn’t Always Have to Be Drinking Water – Using Wastewater as a Resource
17.03.2017 | ISOE - Institut für sozial-ökologische Forschung

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Argon is not the 'dope' for metallic hydrogen

24.03.2017 | Materials Sciences

Astronomers find unexpected, dust-obscured star formation in distant galaxy

24.03.2017 | Physics and Astronomy

Gravitational wave kicks monster black hole out of galactic core

24.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>