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:3/23/2015)... 2015 SoundView Technology Group issues a new research ... ) Wocket smart wallet. SoundView was one of the selected user ... with the Wocket in multiple scenarios and outlets. ... other retailers, making both debit and credit card payments.  ... "If the company meets their plans in 2015, it would ...
(Date:3/20/2015)... DUBLIN , Mar. 20, 2015 Research ... announced the addition of the "India Sensors ... their offering. The sensor market is ... through 2020 Consumer electronics, automotive, industrial ... for sensors in the country. In addition, adoption ...
(Date:3/19/2015)... March 19, 2015  NXT-ID, Inc. (NASDAQ: NXTD ... on the growing mobile commerce market, announces its biometric payment ... clip that aired this week on Washington DC,s ... In a segment "The Next Great Thing", host ... way to pay, and ,a really big breakthrough in mobile ...
Breaking Biology News(10 mins):Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 2India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 3NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3
... TAMPA, Fla. (Nov. 19, 2012) In three studies published in ... of the National Academy of Inventors , innovators unveil creative ... of energy, and change our lives. Untapped energy in ... and in Florida,s ocean waves can be captured and used, said ...
... has applied for a patent for a genetically-engineered vaccine strategy ... body structures that are the first sites of contact with ... last a lifetime, the vaccine will lead to the continual ... system. Another feature of the vaccine system is that it ...
... with histonesthe proteins that package DNAregulate many fundamental cell activities ... or blood cells becoming leukemic. These interactions are governed by ... chemically modify histones signaling them to clamp down tighter on ... expressed. In the November 19, 2012, online ...
Cached Biology News:New energy technologies promise brighter future 2New energy technologies promise brighter future 3Texas Biomed files patent for a novel HIV vaccine strategy 2Fruit fly studies guide investigators to misregulated mechanism in human cancers 2Fruit fly studies guide investigators to misregulated mechanism in human cancers 3
(Date:4/23/2015)... Jose, California (PRWEB) April 23, 2015 ... Predictive diagnostics refer to a series of genetic ... as cystic fibrosis, Lou Gehrig's disease, Huntington's disease, ... in examining the gene composition and interaction in ... the disease as well as the response to ...
(Date:4/23/2015)... PA (PRWEB) April 23, 2015 ... it is the first EMC® Enterprise Content Division ... the entire EMC Documentum® for Life Sciences ... has proven knowledge and capabilities to provide life ... purpose-built solutions. , The EMC Documentum Solution ...
(Date:4/23/2015)... /PRNewswire/ - Crystal Research Associates, LLC announced today that ... (EIO) on Aeterna Zentaris Inc. (NASDAQ: AEZS ) (TSX: ... Research Associates, website at www.crystalra.com ... www.aezsinc.com . Aeterna Zentaris ("Aeterna" or "the ... oncology, endocrinology, and women,s health. With a focus on ...
(Date:4/22/2015)... -- Sangamo BioSciences, Inc. (NASDAQ: SGMO ) today reported ... For the first quarter ended March 31, 2015, ... or $0.08 per share, compared to a net loss ... same period in 2014. As of March 31, 2015, ... interest receivable of $226.1 million. Revenues for ...
Breaking Biology Technology:Increasing Disease Prevalence & Focus on Preventive Healthcare Drive the Predictive Diagnostics Market, According to a New Report by Global Industry Analysts, Inc. 2Increasing Disease Prevalence & Focus on Preventive Healthcare Drive the Predictive Diagnostics Market, According to a New Report by Global Industry Analysts, Inc. 3Glemser Earns Accreditation for Life Sciences Solution Suite 2Crystal Research Associates, LLC Issues Executive Informational Overview (EIO) on Aeterna Zentaris Inc. 2Crystal Research Associates, LLC Issues Executive Informational Overview (EIO) on Aeterna Zentaris Inc. 3Sangamo BioSciences Reports First Quarter 2015 Financial Results 2Sangamo BioSciences Reports First Quarter 2015 Financial Results 3Sangamo BioSciences Reports First Quarter 2015 Financial Results 4Sangamo BioSciences Reports First Quarter 2015 Financial Results 5Sangamo BioSciences Reports First Quarter 2015 Financial Results 6Sangamo BioSciences Reports First Quarter 2015 Financial Results 7Sangamo BioSciences Reports First Quarter 2015 Financial Results 8
... Hospital (TSH),Canada,s largest urban community hospital, has selected ... physicians. The,implementation of Chyma(TM) for their team of ... ER departments at the two hospital campuses and ... medicine., "Chyma(TM) reflects the commitment of the ...
... Mass., June 2 RainDance Technologies, Inc.,a ... health and,disease research, today announced the appointment ... effective immediately., "As RainDance solutions enter ... to establish our manufacturing and financial capabilities,",said ...
... announced the,release of a new and exciting module ... experience with different techniques and,alternative approaches to the ... The GYN module is the latest addition to ... Mentor, the world,s most advanced,laparoscopic surgery simulator. The ...
Cached Biology Technology:Canada's Largest Urban Community Hospital Chooses Chyma(TM) On-Call Physician Scheduling Technology 2RainDance Appoints Kelly Chief Operating Officer 2Simbionix Takes Non-Invasive GYN Surgical Training to the Next Level 2
Rat neural stem cell kits are intended for the in vitro growth and commitment to neuronal and glial lineage differentiation, of cultured fetal rat neural stem and progenitor cells expanded using FGF-...
MOUSE ANTI POLY (ADP-RIBOSE) Immunogen: Purified poly (ADP-ribose) polymer, 10-50 unit chain length...
Edited by D. Patel (1994) Comprehensive data on gel electrophoresis of proteins, nucleic acids, nucleoproteins and carbohydrates....
... Edited by John M. Walker ... highly successful analytical techniques for studying ... tested protocol contains detailed, step-by-step instruction, ... explanations and comprehensive lists of reagents ...
Biology Products: