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

0

GOOD

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:5/20/2013)... SAN DIEGO (May 20, 2013) - A ... will headline the groundbreaking research that will be unveiled ... Biotechnology Conference (NBC). The meeting takes place Monday, May ... Diego Hotel and Marina. , "The main goal ... to fight against a pathogen that causes the disease", ...
(Date:5/19/2013)... of California, Davis have engineered a strain of photosynthetic ... They report their findings today at the 113th General ... this work, we used synthetic biology approaches to probe ... light energy for growth) cyanobacterial metabolism for the ability ... lead researcher on the study. He is part ...
(Date:5/17/2013)... 2013) The AGA Research Foundation announced a new ... between the gut microbiota, one of today,s most exciting ... , The AGA Research Awards Panel selected Andrew T. ... Hospital and Harvard Medical School, Boston, as the 2013 ... will receive $25,000 of funding, commencing in July 2013, ...
Breaking Biology News(10 mins):Germ-fighting vaccine system makes great strides in delivery 2New gut microbiome research to explore red meat -- colorectal cancer pathway 2
... sensory systems that detect only one type of stimuli, our ... mechanical stimuli to improve how we smell, according to University ... of Nature Neuroscience. , This finding, plus the fact ... cells, which control how our brain perceives what we smell, ...
... publication, has announced the winner of the 2006 David ... author of The Nurture Assumption and No Two Alike, ... the evolution of human hairlessness and skin color" was ... The £1,000 prize, launched in 2004, is awarded annually ...
... are likely to soon be able to cultivate new ... mould (Botrytis cinerea). This is the conclusion of the ... which he hopes to earn his doctorate on 3 ... varieties can be resistant to grey mould. The leading ...
Cached Biology News:Penn study on olfactory nerve cells shows why we smell better when we sniff 2Why aren't humans furry? Stone-Age moms could be the answer 2Research on grey mould offers possible breakthrough in tomato cultivation 2
(Date:5/21/2013)... Branchburg, NJ (PRWEB) May 21, 2013 ... enhancement industry, has appointed Dale Braddy to Southeastern USA ... proactively bolster its sales muscle in the Southeast. ... a food ingredient brokerage and supplier to food processors ... past 13 years in the food industry and has ...
(Date:5/21/2013)... As the R&D sector becomes ... the industry to deliver better products, faster. Collaborations ... companies often means turning big ideas into reality, ... collaboration with Sensidose AB and Recipharm, is one ... to market sooner. The partnership resulted in the ...
(Date:5/21/2013)... May 21, 2013  Synthetic Biologics, Inc. (NYSE MKT: SYN), ... of serious infectious diseases, announced today that Jeffrey ... Annual Marcum LLP MicroCap Conference on Thursday, May 30, ... the Grand Hyatt Hotel. Mr. Riley is scheduled to present ... of Synthetic Biologics, presentation can be accessed by logging onto ...
(Date:5/21/2013)... NANONEX CORPORATION, a pioneer and leading company ... successful delivery and installation of a new nanoimprint ... major Japanese manufacturing company. , ... lithography tool that has the ability to process ... types. Based on Nanonex inventions and proprietary technologies, ...
Breaking Biology Technology:The Development of an Innovative Microtablet Dosage Form, a Success Story: Live Webinar Hosted by Xtalks 2Synthetic Biologics to Present at the 2nd Annual Marcum LLP MicroCap Conference 2Nanonex Announces the Shipment and Installation of an Innovative Nanoimprint Lithography System for Fully Automated Manufacturing 2
... One of the RNA silencing , ... the synthesis of siRNA, , the <A ... href="http://www.ambion.com/catalog/CatNum.php?16000"> siRNA , ... RNAs of several different sequences need to be made, it can be ...
... The Silencer siRNA , ... column purification to prepare transfection-ready siRNAs. With , ... hours. Below , is one example of how ... siRNA Construction Kit were used , in gene ...
... Ambion's Cells-to-cDNA Kit produces cDNA , ... performed using real-time RT-PCR. The Cells-to-cDNA Kit comes in an , ... cells without RNA isolation in less ... RT-compatible Cell Lysis Buffer that inactivates RNases, RT-PCR can , ...
Cached Biology Technology:Your Data: Silencing of a Pro-apoptotic Transcription Factor Using Synthetic siRNA 2Your Data: Silencing of a Pro-apoptotic Transcription Factor Using Synthetic siRNA 3Your Data: Silencing Hepatitis C Virus Replication With In Vitro Transcribed siRNAs 2Your Data: Detection of Oocyte-specific Gene Expression Using Ambion's Cells-to-cDNA Kit 2
... Agencourts cDNA sequencing and finishing ... needs. Agencourt can perform large-scale 5' ... and finishing. Our considerable experience with ... programs make Agencourt an ideal cDNA ...
GLP-compliant, CLIA-certified DNA sequencing service. ASQ and SQA certified quality assurance staff. Auditors welcome....
A component of the Acridinium protein labeling kit....
...
Biology Products: