Navigation Links
Study suggests past climate changes may have promoted the formation of new species in the Amazon
Date:7/22/2008

n rainforest may have been underwater between 10-15 million years ago, according to the researchers. This would have caused higher elevation regions nearby, like the slopes of the Andes mountains, to become like islands, in which species were able to evolve independently from species on other "islands."

According to the study, the genetic evidence was consistent with both scenarios, suggesting that both ice age climate changes as well as flooding of the Amazon basin could be responsible for generating diversity in leafcutter ants.

The authors rejected the idea, previously suggested by other scientists, that rivers play a role in generating diversity in the Amazon basin by separating populations that live on either side. According to the study, even the Amazon riverwhich at places is nearly 2 miles widehas not kept winged leafcutter ant queens and males from flying across it.

"It is interesting that Amazonian rivers acts as barriers to some birds, but these ants are apparently able to cross them," said Solomon.

According to the authors, the idea that refugia were responsible for generating species diversity in the Amazon has been heavily criticized. However, the new findings suggest that the refugia theory may need to be reevaluated.

"Even though we found support for the refugia hypothesis, our results suggest that climate changes had a different effect on each species, even though they are very closely related. This goes against the way people have thought about refugia in the past, and it highlights how difficult it is to generalize when it comes to making predictions about how climate change affects species," said Solomon.


'/>"/>

Contact: Scott E. Solomon
solomons@si.edu
Public Library of Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. Sugar study is sweetener for stem cell science
2. MSU researcher uses grant to study little-known but largely useful microbes
3. Scripps study sets high economic value on threatened Mexican mangroves
4. Study reveals air pollution is causing widespread and serious impacts to ecosystems
5. Gene panel predicts lung cancer survival, study finds
6. Study: Migrant laborers valuable to horticulture industry
7. Study shows increased education on nanotech, human enhancement increases public concerns
8. Study: Future snowmelt in West twice as early as expected; threatens ecosystems and water reserves
9. UCLA study identifies mechanism behind mind-body connection
10. Y chromosome study sheds light on Athapaskan migration to southwest US
11. UCSB researcher leads worldwide study on marine fossil diversity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/18/2014)... for evaluation of suspected genetic conditions, whole-exome sequencing ... including detection of a number of rare genetic ... to a study appearing in JAMA . ... the American Society of Human Genetics annual meeting. ... regions of thousands of genes simultaneously using next-generation ...
(Date:10/17/2014)... for the first time how bacteria can grow directly ... the opportunity to get tremendous insights into bacteria behavior ... discovered the bacterial growth in chronic lung infections among ... by the immune cells. The researchers discovered the immune ... bacteria, forcing the bacteria to switch to a much ...
(Date:10/16/2014)... land managers have a new synthesis of recent research ... (MMC) forests in the two states. , The ... Oregon and Washington: A Synthesis of the Relevant Biophysical ... technical report published by the U.S. Forest Service,s Pacific ... request from managers for a synthesis of the large ...
Breaking Biology News(10 mins):Whole-exome sequencing shows potential as diagnostic tool 2Scientists opens black box on bacterial growth in cystic fibrosis lung infection 2New report synthesizes best available science on management of moist mixed-conifer forests 2
... Primate Research Center, Oregon Health & Science University, suggests ... counteract some negative impacts of smoking in unborn babies. ... mothers who continue to smoke throughout pregnancy despite physician ... of the American Journal of Respiratory and Critical Care ...
... National Human Genome Research Institute (NHGRI), part of the ... chromosomes have evolved by breaking at specific sites rather ... the breakage hotspots are also involved in human cancer. ... issue of the journal Science, a team of 25 ...
... that a protein prolonging life in mice works by controlling ... species. In mice, the researchers discovered, it acts as a ... Therapies based on this hormone could prove to be a ... Makoto Kuro-o, assistant professor of pathology and senior author of ...
Cached Biology News:OHSU research shows vitamin C counteracts some negative impacts of smoking on unborn babies 2OHSU research shows vitamin C counteracts some negative impacts of smoking on unborn babies 3Multi-species genome comparison sheds new light on evolutionary processes, cancer mutations 2Multi-species genome comparison sheds new light on evolutionary processes, cancer mutations 3Scientists find that protein controls aging by controlling insulin 2
(Date:10/19/2014)... Oct. 19, 2014 NextCODE Health, which enables clinicians ... in real time, today announced the launch of its new ... , at the American Society of Human Genetics (ASHG) annual ... more, sign up and apply for free beta access, visit ... and benefits can be viewed here . ...
(Date:10/19/2014)... 2014 The Asia-Pacific Speech Analytics market ... Asia-Pacific with analysis and forecast of revenue. This market ... to $208 million by 2019, at a Compound Annual ... , Browse through the TOC of the Asia-Pacific Speech ... in-depth analysis provided. It also provides a glimpse of ...
(Date:10/19/2014)... 2014 The report "Unmanned Ground ... Security), Technology, Payload, Type & by Geography - ... global unmanned ground vehicle market into various sub ... market sizes. The report also identifies the factors ... it along with the adoption trends. , The ...
(Date:10/18/2014)... 18, 2014 The Asia-Pacific Bio-based ... segments the bio-based advanced phase change material market ... , Browse through the TOC of the Asia-Pacific ... get an idea of the in-depth analysis provided. ... in the Asia-Pacific bio-based advanced phase change material ...
Breaking Biology Technology:The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 2The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 2Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 3Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 4Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 5The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 3The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 4
... New Deal Advances the Company,s Groundbreaking Smart Shape Memory ... (BIO-SMP(TM)) Commercialization Program ... the pioneer,in the design, manufacture and commercialization of innovative,biocompatible ... global licensing agreement for an application of the,Company,s BIO-SMP(TM) ...
... MELBOURNE, Australia, Jan. 30 Phosphagenics,Limited ("Phosphagenics") (ASX: ... a pre-clinical study demonstrating that the,combination of its ... significantly reduced serum lipids and inflammatory proteins,involved in ... The purpose of the study was to determine ...
... composed of tightly packed nanostructures that resemble tiny nails, ... Laboratories have created a material that can repel almost ... the liquid on the surface slips past the heads ... wetting the surface completely. , The new material, which ...
Cached Biology Technology:mNEMOSCIENCE GmbH Announces Global Licensing Agreement With Aporo Biomedical 2mNEMOSCIENCE GmbH Announces Global Licensing Agreement With Aporo Biomedical 3Phosphagenics Reports Superior Pre-clinical Cholesterol Results from APA-01 and Atorvastatin Combination 2Phosphagenics Reports Superior Pre-clinical Cholesterol Results from APA-01 and Atorvastatin Combination 3Phosphagenics Reports Superior Pre-clinical Cholesterol Results from APA-01 and Atorvastatin Combination 4
... Sytem is a highly advanced digital ... digital imaging and automation technology that ... analysis, archving/retrieval and colored professional reporting. ... industry's fastest scanning and detection modules ...
... overlay agarose is used for second-dimension ... strips in place in PROTEAN Plus ... incorporated to allow monitoring of electrophoresis ... 0.75% agarose in 1x Tris, glycine, ...
... ReadyPrep overlay agarose, is a low ... sample setup to secure IPG strips in ... dye is incorporated to allow monitoring of ... 0.5% low melting point agarose in 1x ...
... super cooling coil, Trans-Blot cell, ... enzyme, high-intensity, and extended electrophoretic ... the Trans-Blot cell. Use of ... connection to an external water ...
Biology Products: