Navigation Links
Tropical ecosystems regulate variations in Earth's carbon dioxide levels
Date:7/23/2013

Rising temperatures, influenced by natural events such as El Nio, have a corresponding increase in the release of carbon dioxide from tropical forest ecosystems, according to a new study out today.

The study, published in the journal Proceedings of the National Academy of Sciences, found that a temperature anomaly of just 1C (in near surface air temperatures in the tropics) leads to a 3.5-Petagram (billion tonnes of carbon) anomaly in the annual CO2 growth rate, on average. This is the equivalent of 1/3 of the annual global emissions from the combustion of fossil fuels and deforestation together.

Importantly, the NASA Earth Exchange (NEX) study results provide scientists with a new diagnostic tool to understand the global carbon cycle as it undergoes major changes due to the influences of human activities.

NASA study co-author, CSIRO's Dr Pep Canadell, said that the study's 50-year analysis centred on temperature and rainfall patterns during El Nio years, when temperatures increase in tropical regions and rainfall decreases. An accompanying analysis assessed the effects of volcanic eruptions, which lead to decreased temperatures due to volcanic aerosols in the atmosphere.

"Our study indicates that carbon exchanges in tropical ecosystems are extremely sensitive to temperature, and they respond with the release of emissions when warmer temperatures occur".

"Many processes involved in this response are the same as what is known as the carbon-climate feedback, which it is thought will lead to an acceleration of carbon emissions from vegetation and soils and into the atmosphere under future climate change.

"The observed temperature changes are more important than changes in rainfall in influencing concentration of atmospheric CO2".

"Warming is the one thing that we know with most certainty will occur under climate change in the tropics, but there are still large uncertainties about the future prec
'/>"/>

Contact: Craig Macaulay
Craig.Macaulay@csiro.au
61-362-325-219
CSIRO Australia
Source:Eurekalert

Page: 1 2

Related biology news :

1. Palms reveal the significance of climate change for tropical biodiversity
2. The absence of elephants and rhinoceroses reduces biodiversity in tropical forests
3. Native plant restoration not enough to maintain tropical dry forests in Hawaii
4. Rodent robbers good for tropical trees
5. Have thieving rodents saved tropical trees?
6. Thieving rodents: Did they save tropical trees?
7. Tropical plankton invade Arctic waters
8. Tropical arks reach tipping point
9. Prestigious Royal Society of Tropical Medicine and Hygiene journals join Oxford University Press
10. Testosterone regulates solo song of tropical birds
11. Researchers investigate impacts of climate change on rare tropical plants
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/20/2015)... Huntington Memorial Hospital is the first facility ... miniaturized, wireless monitoring sensor to manage heart failure (HF). ... FDA-approved heart failure monitoring device that has been proven ... to manage heart failure. The CardioMEMS HF ... pulmonary artery (PA) during a non-surgical procedure to directly ...
(Date:4/14/2015)... , April 14, 2015  HYPR Corp. ... Online (FIDO ® ) Alliance tm , an ... FIDO members commit to share technology and collaborate ... that are interoperable, more secure and private, and ... biometric identity verification that protects sensitive user information ...
(Date:4/13/2015)... , April 13, 2015  higi, a leading ... ways to more fully engage with their communities around ... industry-leading, privacy protected and secure API.  ... enables the most accessible, affordable, and convenient vehicle to ... The API will allow ...
Breaking Biology News(10 mins):Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 2Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 3HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3
... the brain than previously thought, a new study shows. ... first detected by part of the brain called primary visual ... head where visual information first enters the cortex of the ... in animals but has not been tested on human beings ...
... (September 5, 2007) King Abdullah University of Science ... Cairo (AUC) signed a Memorandum of Understanding on August ... development that will positively impact the Kingdom of Saudi ... president of KAUST, and Dr. David D. Arnold, president of ...
... of Engineering may have discovered the path toward ... bacteria that have developed resistance to common antibiotics. ... of events occurring in bacteria that opens to ... Currently, three classes of bactericidal antibiotics are used ...
Cached Biology News:Color contrast is 'seen' by the brain early doors 2KAUST and American University in Cairo to collaborate on research and academic development 2Boston University biomedical engineers find chink in bacteria's armor 2Boston University biomedical engineers find chink in bacteria's armor 3
(Date:6/2/2015)... June 02, 2015 Cirrascale ... blade-based and rackmount computing and storage infrastructure for ... launch of its high density scale-out, two-in-one video ... Slipstream™ RM1622D . The high density, two-in-one system ... product family with Intel® Iris™ Pro graphics P6300 ...
(Date:6/2/2015)... 02, 2015 “Stem Cell Therapy to help ... and it is used often as an adjunct to surgery ... are not yet aware or comfortable enough with the techniques ... most often reserved for the last resort cases - when ... barely lift a paw to get around. It is an ...
(Date:6/2/2015)... June 2, 2015   Sigma-Aldrich Corporation (NASDAQ: ... Technology company, announced today it has entered into ... launch genetically engineered human neural differentiated cells and ... of neurological diseases. These new products, in combination ... versatile tools for the study of central nervous ...
(Date:6/2/2015)...  Alere Inc. (NYSE: ALR ), a ... House Antibiotic Stewardship Forum today to announce a ... the President,s National Action Plan to Combat Antibiotic-Resistant ... measurable goals and objectives over the next five ... protect their patients through antibiotic stewardship, slow the ...
Breaking Biology Technology:Cirrascale® Announces Support for Intel® Xeon® Processor E3-1200 v4 Product Family; Launches Server Offering Optimized for Low Cost-per-Stream Transcoding Applications 2Cirrascale® Announces Support for Intel® Xeon® Processor E3-1200 v4 Product Family; Launches Server Offering Optimized for Low Cost-per-Stream Transcoding Applications 3VetStem Biopharma, Proudly Announces a New Long Term Partnership with VCA West Los Angeles in Support of Stem Cell Therapy Training and Clinical Opportunities. 2VetStem Biopharma, Proudly Announces a New Long Term Partnership with VCA West Los Angeles in Support of Stem Cell Therapy Training and Clinical Opportunities. 3Sigma-Aldrich to Launch XCell Science Genetically Engineered iPSC-Derived Neural Disease Cells 2Sigma-Aldrich to Launch XCell Science Genetically Engineered iPSC-Derived Neural Disease Cells 3Alere Announces Broad Initiatives to Help Combat Antibiotic Resistance during White House Antibiotic Stewardship Forum 2
... Technology Network is committed to helping improve patient safety ... We salute the administration and the efforts of Secretary ... health technology. If you are interested in learning ... event. , ,The University of Wisconsin and ...
... stories critical of the ethics of contemporary business executives ... the academic literature. A noteworthy exception is "Beyond Selfishness ... the Fall 2002 issue of the Sloan Management Review ... an elegantly argued essay that should be required reading ...
... its MOVEit family of secure file-transfer software products now ... server file delivery. The new features include transfer persistence, ... and MOVEit clients now provide transfer persistence by retrying ... Files that fail at the beginning or end of ...
Cached Biology Technology:The doctor is in: Thompson prescribes better health information technology 2The doctor is in: Thompson prescribes better health information technology 3The doctor is in: Thompson prescribes better health information technology 4Is your competitive edge really a wedge? 2Is your competitive edge really a wedge? 3
Request Info...
anti-JNK2 Immunogen: Recombinant human JNK2 protein Accession Number: NM_002752 Quality Assurance: Routinely evaluated by immunoblot. Molecular Weight: 46 and/or 54 kDa Available ...
... peptide derived from the internal region of ... Specific for the internal region of the ... the target band at ~590 kDa. ... media from primary tracheobranchial epithelial cultures and ...
Gloves are 9.25 long, latex, powder free, smooth and ambidextrous....
Biology Products: