Navigation Links
Tropical forest diversity increased during ancient global warming event
Date:11/11/2010

The steamiest places on the planet are getting warmer. Conservative estimates suggest that tropical areas can expect temperature increases of 3 degrees Celsius by the end of this century. Does global warming spell doom for rainforests? Maybe not. Carlos Jaramillo, staff scientist at the Smithsonian Tropical Research Institute, and colleagues report in the journal Science that nearly 60 million years ago rainforests prospered at temperatures that were 3-5 degrees higher and at atmospheric carbon dioxide levels 2.5 times today's levels.

"We're going to have a novel climate scenario," said Joe Wright, staff scientist at STRI, in a 2009 Smithsonian symposium on Threats to Tropical Forests. "It will be very hot and wet, and we don't know how these species are going to react." By looking back in time, Jaramillo and collaborators identified one example of a hot, wet climate: rainforests were doing very well.

Researchers examined pollen trapped in rock cores and outcropsfrom Colombia and Venezuelaformed before, during and after an abrupt global warming event called the Paleocene-Eocene Thermal Maximum that occurred 56.3 million years ago. The world warmed by 3-5 degrees C. Carbon dioxide levels doubled in only 10,000 years. Warm conditions lasted for the next 200,000 years.

Contrary to speculation that tropical forests could be devastated under these conditions, forest diversity increased rapidly during this warming event. New plant species evolved much faster than old species became extinct. Pollen from the passionflower plant family and the chocolate family, among others, were found for the first time.

"It is remarkable that there is so much concern about the effects of greenhouse conditions on tropical forests," said Klaus Winter, staff scientist at STRI. "However, these horror scenarios probably have some validity if increased temperatures lead to more frequent or more severe drought as some of the current predictions for similar scenar
'/>"/>

Contact: Beth King
kingb@si.edu
507-667-38514
Smithsonian Tropical Research Institute
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Evidence is weak for tropical rainforest 65 million years ago in Africas low-latitudes
2. GOES-13 sees a weaker Hurricane Julia in the tropical trio
3. Tropical forests slashed for farmland
4. Global tropical forests threatened by 2100
5. Study suggests swimmers at sub-tropical beaches show increased risk of illness
6. Shade-coffee farms support native bees that maintain genetic diversity in tropical forests
7. Temperature constancy appears key to tropical biodiversity
8. Tropical biodiversity is about the neighbors
9. Bacterioplankton responses to desert dust in the (sub)tropical northeast Atlantic
10. Low-tech cool: Shade trees for subtropical streets
11. Local social dynamics key to success of tropical marine conservation areas
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tropical forest diversity increased during ancient global warming event
(Date:8/4/2015)... Research and ... addition of the "Digital Forensics Market ... (Computer Forensics, Network Forensics, Mobile Device Forensics, ... and Region - Global Forecast to 2020" ... By Component (Hardware, Software, and Service), Sub-Segment ...
(Date:7/31/2015)... 31. juli 2015 Den 10. internationale konference ... BGI fra den 22. - 25. oktober i ... sin 10-års fødselsdag i år. Siden starten i 2006 ... møder på ,omik,-feltet, og er en af de mest ... ICG-10 fokuserer på nylige gennembrud og fremskridt inden for ...
(Date:7/31/2015)... juillet 2015 La 10e Conférence internationale ... organisée par le BGI du 22 au 25 ... en Chine. La conférence célèbre son ... 2006, l,ICG est devenue l,une des réunions annuelles ... « omiques » et c,est aussi la plus dynamique, la ...
Breaking Biology News(10 mins):Digital Forensics Market - The Market Represents a Compound Annual Growth Rate (CAGR) of 11.3% From 2015 to 2020 2Den 10. internationale konference om Genomics (ICG-10) åbner i oktober 2La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 2La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 3
... the short end of the stick, in this case the ... at the ends of chromosomes, can be thought of as ... neighboring chromosomes. It is typical for telomeres to ... a new study from Brigham and Women,s Hospital (BWH) suggest ...
... to the way scientists name new plants that took effect ... Latin requirement - a stipulation that descriptions or diagnoses of ... rules make it possible to take full advantage of an ... particular species is indeed new to science: Many studies now ...
... 2012Healthy individuals who carry a gene variation linked to ... their brains that may help explain how the gene ... results of this innovative brain imaging study are described ... Brain Connectivity, a bimonthly peer-reviewed publication from Mary ...
Cached Biology News:The long, err, short of it 2
(Date:8/31/2015)... Aug. 31, 2015  US-Australian drug discovery company, ... today confirmed its comprehensive scientific review has identified ... in areas of unmet patient need. Novogen is ... preclinical projects prior to entering into Phase 1 ... Acting Chief Executive Officer, Iain Ross ...
(Date:8/31/2015)... 2015 Trimb Healthcare AB ("Trimb") today announced ... Group BV ("YouMedical"), a Dutch OTC company with operations ... of approximately EUR 16 million, with solid growth and ... ambition is to build a leading international OTC company, ... goal. YouMedical gives us a stronger North European OTC ...
(Date:8/31/2015)... (PRWEB) , ... August 31, 2015 , ... Proove Biosciences, ... County Technology Alliance Annual High Tech Awards. , Now in its 22nd year, ... products which drive innovation here, across the nation and around the world. The OC ...
(Date:8/28/2015)... ... August 28, 2015 , ... Proove ... at the International Spine Intervention Society’ s 23rd Annual Scientific Meeting ... 1st, 2015. With a focus on evidence-based research and clinical application, the event ...
Breaking Biology Technology:Novogen Announces The Outcome Of A Comprehensive Science Review 2Novogen Announces The Outcome Of A Comprehensive Science Review 3Novogen Announces The Outcome Of A Comprehensive Science Review 4Novogen Announces The Outcome Of A Comprehensive Science Review 5Novogen Announces The Outcome Of A Comprehensive Science Review 6Proove Biosciences, Inc. Named a Finalist for 22nd OC Tech Alliance High-Tech Awards for Company of the Year 2Proove Biosciences, Inc. Named a Finalist for 22nd OC Tech Alliance High-Tech Awards for Company of the Year 3Proove Biosciences, Inc. Named a Finalist for 22nd OC Tech Alliance High-Tech Awards for Company of the Year 4Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 2Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 3Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 4
... Cell Therapeutics, Inc. ("CTI") (Nasdaq and MTA: CTIC) today ... an additional 180 days to regain compliance with NASDAQ,s $1.00 ... on May 3, 2010, CTI was notified by NASDAQ that ... for continued listing and was provided until November 1, 2010 ...
... Nov. 2, 2010 Cadence Pharmaceuticals, Inc. (Nasdaq: ... and Drug Administration (FDA) has granted marketing approval for ... formulation of acetaminophen to be approved in the United ... to moderate pain, the management of moderate to severe ...
... 2, 2010 Modern Plastics offers SUSTARIN® C ... manufactured by ROCHLING Engineering Plastics. The technology ... sheet and rod are free of centerline or core ... stability for close tolerance parts. A low coefficient of ...
Cached Biology Technology:NASDAQ Grants Cell Therapeutics 180-Day Extension to Regain Compliance With Minimum Bid Price Rule 2Cadence Pharmaceuticals Announces FDA Approval of OFIRMEV™ (acetaminophen) injection for the Management of Pain and Fever 2Cadence Pharmaceuticals Announces FDA Approval of OFIRMEV™ (acetaminophen) injection for the Management of Pain and Fever 3Cadence Pharmaceuticals Announces FDA Approval of OFIRMEV™ (acetaminophen) injection for the Management of Pain and Fever 4Cadence Pharmaceuticals Announces FDA Approval of OFIRMEV™ (acetaminophen) injection for the Management of Pain and Fever 5Cadence Pharmaceuticals Announces FDA Approval of OFIRMEV™ (acetaminophen) injection for the Management of Pain and Fever 6Modern Plastics SUSTARIN® C (Acetal) Product Uses Special Manufacturing Technology to Ensure Every Sheet and Rod Are Free of Centerline or Core Porosity 2
... The Captivate magnetic ... can be used in conjunction ... (C-21473, C-21474, C-21476) or other ... with most 96-well microplates. Cell ...
Protein Phosphorylation...
...
The Light Diagnostics Calicivirus Genotype 1&2 Typing OligoDetect assay is applicable for the qualitative detection of calicivirus RNA generated by an in-house validated in vitro nucleic acid amplifi...
Biology Products: