Navigation Links
Climate warming unlikely to cause near-term extinction of Amazon trees, but threats remain
Date:12/13/2012

oadly representative of the Amazon tree flora. Primary forest collection sites were in central Panama, western Ecuador and Amazonian Ecuador. Additional collections were made in Brazil, Peru, French Guiana and Bolivia. Other plant samples were obtained from herbarium specimens.

"The most lasting finding of our study may be the discovery of ancient geographic variation within widespread species, indicating that many rain forest tree species were widely distributed before the major uplift of the northern Andes," said co-author Eldredge Bermingham of the Smithsonian Tropical Research Institute.

To determine the age of each tree species, the researchers extracted and sequenced DNA from plant samples, then looked at the number of genetic mutations contained in those sequences. Using a molecular clock approach and population genetic models, they estimated how long it would take for each of the tree populations to accumulate the observed number of mutations, which provided a minimum age for each species.

"An important caveat is that because we've been in a cold period over the past 2 million years basically the whole Quaternary Period some of the trees' adaptations to warmth tolerance may have been lost," Dick said. "Additional research is needed to test whether this has occurred."


'/>"/>

Contact: Jim Erickson
ericksn@umich.edu
734-647-1842
University of Michigan
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Warming climate unlikely to cause extinction of ancient Amazon trees, study finds
2. Mercyhurst University study probes impact of climate change on ectotherms
3. Climate - the hot topic in Doha
4. Researchers investigate impacts of climate change on rare tropical plants
5. Site-specific, long-term research expanding understanding of climate change
6. Climate models project increase in US wildfire risk
7. New study shows how climate change could affect entire forest ecosystems
8. Fish ear bones point to climate impacts
9. Rapid changes in climate dont slow some lizards
10. Maple syrup, moose, and the local impacts of climate change
11. Dartmouth research: The clocks are ticking and the climate is changing
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/26/2015)... , March 26, 2015 ... family, social, recreation and athletic club, today announced it ... to allow freedom of movement for members and staff, ... "Following a comprehensive process, we selected FST,s IMID Access ... and convenience for our members and staff, in addition ...
(Date:3/24/2015)... , March 24, 2015   NexID Biometrics ... with critical security-authentication needs, today announced the beginning of ... (FFD) solution. The company, based in ... at the three-day Connect:ID Expo, which began here today ... NexID said version 2.0 of its SDK boosts the ...
(Date:3/23/2015)... 2015   HOYOS Labs , a leading global ... that the Company will demonstrate multiple biometrics-based technologies under ... at Connect:ID on March 23 through 25, 2015, in ... highlight the IEEE Biometric Open Protocol Standard; free biometrics-based ... access control system. BOPS was invented by HOYOS Labs ...
Breaking Biology News(10 mins):Granite Club First Private Club in North America to Implement FST Biometrics Secure Access Solution, as Part of Multi-million Dollar Expansion 2NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 3
... of years ago, humans began scrubbing off and discarding ... white kernel beneath. Now, for the first time, scientists ... rice processing, called rice bran, significantly lowers blood pressure ... The team reports their findings in the March 8 ...
... gnawing its way into a carcass and staying inside to feed ... Columbia (Canada) believe the Hagfish's gruesome method of feeding may cause ... build up of CO2 produced by the fish, which could explain ... up to 7% CO2 (350 × that found in normal air). ...
... with Affymetrix, Inc., have designed a chip ?the GeneChip® ... suggest ways to better manage them. By helping determine ... citrus ?genes that are associated with taste, acidic content ... to researchers for rectifying existing problems and making improvements ...
Cached Biology News:How nice, brown rice: Study shows rice bran lowers blood pressure in rats 2UCR researchers design chip that can improve citrus varieties 2UCR researchers design chip that can improve citrus varieties 3
(Date:4/17/2015)... Fremont, CA (PRWEB) April 17, 2015 ... http://www.medispend.com ) for its 20 Most Promising Pharma and ... based on MMIS’s MediSpend global compliance software platform for ... companies is selected by a panel of experts and ... promote technology entrepreneurship. “MMIS’s MediSpend Platform has been on ...
(Date:4/17/2015)... April 17, 2015 Global Stem ... GTCbio Stem Cell Summit 2015 April 27 - 29, ... latest developments in all areas of stem cell research ... stem cells and regenerative medicine. , The conference ... as well as translational research in stem cell therapies, ...
(Date:4/16/2015)... OSAKA, Japan , April 16, ... (CiRA) of Kyoto University and Takeda Pharmaceutical Company ... together to develop clinical applications of induced pluripotent ... diabetes mellitus, neurological disorders and cancer immunotherapy. The ... is designed to expedite multiple research projects for ...
(Date:4/16/2015)... April 16, 2015 Proove Biosciences ... Buzz of BIO Contest for the 2015 BIO ... the 2015 BIO International Convention will take place June ... During the Buzz of BIO contest, industry leaders will ... present at the conference. The community voting period began ...
Breaking Biology Technology:MMIS Chosen by CIO Review as Top 20 Most Promising Pharma and Life Science Technology Solution Providers 2015 2Global Stem Cells Group To Join GTCbio Stem Cell and Regenerative Medicine Summit in Boston, April 27-29, 2015 2Global Stem Cells Group To Join GTCbio Stem Cell and Regenerative Medicine Summit in Boston, April 27-29, 2015 3CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 2CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 3Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 2Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 3
... A. Mirkin has mass-produced the 2008 Summer Olympics logo -- ... centimeter of space. , Mirkin and his colleagues printed ... a new printing technique, called Polymer Pen Lithography (PPL), that ... device. , The PPL technique, to be published Aug. ...
... 14 Keck Graduate Institute,(KGI) in collaboration with ... center, announced the launch of its new Certificate ... fellows. KGI has,secured funding to allow a limited ... the program with scholarships that will cover tuition., ...
... (Nasdaq: NLTX ), today announced financial results for the ... loss for the three months ended June 30, 2008 was ... $0.11 per share, for,the same period of 2007. Net operating ... million or $0.28 per share compared to $2.2 million,or $0.16 ...
Cached Biology Technology:Northwestern chemists take gold, mass-produce Beijing Olympic logo 2City of Hope Helps KGI Launch New Management Training Program for Scientists 2City of Hope Helps KGI Launch New Management Training Program for Scientists 3Nile Therapeutics, Inc. Reports 2008 Second Quarter Financial Results 2Nile Therapeutics, Inc. Reports 2008 Second Quarter Financial Results 3Nile Therapeutics, Inc. Reports 2008 Second Quarter Financial Results 4