Navigation Links
New study reveals link between 'climate footprints' and mass mammal
Date:5/18/2010

An international team of scientists have discovered that climate change played a major role in causing mass extinction of mammals in the late quaternary era, 50,000 years ago. Their study, published in Evolution, takes a new approach to this hotly debated topic by using global data modelling to build continental 'climate footprints.'

"Between 50,000 and 3,000 years before present (BP) 65% of mammal species weighing over 44kg went extinct, together with a lower proportion of small mammals," said lead author Dr David Nogues-Bravo from the Center for Macroecology, Evolution and Climate in University of Copenhagen. "Why these species became extinct in such large numbers has been hotly debated for over a century."

During the last 50,000 years the global climate became colder and drier, reaching full glacial conditions 21,000 years before present time. Since then the climate has become warmer, and this changing climate created new opportunities for colonization of new regions by humans. While both of these global change actors played significant roles in species extinction this study reveals that changing climate was a significant force driving this mass extinction.

"Until now global evidence to support the climate change argument has been lacking, a large part of existing evidence was based on local or regional estimates between numbers of extinctions, dates of human arrivals and dates of climate change," said Dr Nogues-Bravo. "Our approach is completely different. By dealing with the issue at a global scale we add a new dimension to the debate by showing that the impact of climate change was not equal across all regions, and we quantify this to reveal each continent's "footprint of climate change."

The study shows that climate change had a global influence over extinctions throughout the late quaternary, but the level of extinction seems to be related to each continent's footprint of climate change. When comparing cont
'/>"/>

Contact: Ben Norman
Lifesciencenews@wiley.com
44-124-377-0375
Wiley-Blackwell
Source:Eurekalert

Page: 1 2

Related biology news :

1. Invasive kudzu is major factor in surface ozone pollution, study shows
2. Immune system compromised during spaceflight, study finds
3. Study raises new concerns about radiation and breast cancer
4. Opinion polls underestimate Americans concern about the environment, Stanford study finds
5. Study finds protein that plays key role in early embryonic development
6. Scripps Research study overturns decade-old findings in neurobiology
7. UC Davis study links obesity with lowest earnings
8. Montana State grad student to study unique soil around Yellowstone hot springs
9. U-M study achieves reduced side effects in head and neck cancer treatment
10. NTU and UNSW open joint center to study microorganisms for water and environment technologies
11. Study paves way for new biofuels models, technologies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/6/2014)... an asset for a predator. Except when that predator runs ... beetle, relative to its size, is the fastest creature on ... lengths per second (at about five miles per hour). The ... the sprinting gold from the tiger beetle, a person would ... tiger beetle has a problem. At peak speeds, everything becomes ...
(Date:11/5/2014)... in the UTSA College of Sciences, is one ... receive a two-year $300,00 National Science Foundation (NSF) ... funding supports President Obama,s BRAIN Initiative, a federal ... that will demystify complex brain processes. , ... broken into the interactions of multiple components, each ...
(Date:11/5/2014)... diversity in their ability to identify scents and odors. ... their perceptual evaluation of odors, with women outperforming men ... Sex differences in olfactory detection may play a role ... one,s perception of smell, which is naturally linked to ... been suggested to be cognitive or emotional, rather than ...
Breaking Biology News(10 mins):The tiger beetle: Too fast to see 2UTSA biology professor awarded $300,000 NSF grant for brain research 2UTSA biology professor awarded $300,000 NSF grant for brain research 3The female nose always knows: Do women have more olfactory neurons? 2
... will not only teach us more about the way neurons ... diagnostics and therapies for neurological diseases such as Parkinson,s," says ... take a major toll on society. More than 8% of ... cent suffers from a mental disturbance and the number of ...
... is now leading to breakthroughs in bio nanotechnology research. ... reality. Four years ago, the biologist Karen ... when she started with her team working on it, ... at the Nano-Science Center, her team has been able ...
... the first time, the successful reprogramming of diseased human ... also found differentiation into mature hepatocytes was more efficient ... diseased hepatocyte-derived human iPSC lines provides a good basis ... technology could give a potentially unlimited reservoir of cells ...
Cached Biology News:Skywalker ensures optimal communication between neurons 2From science fiction to research breakthrough 2
(Date:11/21/2014)... 21, 2014 Why did Stephen Hawking ... Einstein so instantly recognizable? Why have they become icons ... and author Hilton Ratcliffe seeks out the answers to ... all to do with science. In " Stephen Hawking ... November 21, 2014), Ratcliffe puts it plainly: , ...
(Date:11/21/2014)... , Nov. 20, 2014  Cytori Therapeutics (NASDAQ: ... Hedrick , M.D. will present live at VirtualInvestorConferences.com on December ... TIME:    11:15 am PT / 2:15 pm ET ... into your browser,s address bar: http://bit.ly/1B2KGaL ... receive event updates. This will be a ...
(Date:11/18/2014)... Urdorf, Switzerland (PRWEB) November 17, 2014 ... range of processes across the pharmaceutical, chemical, and food ... is it so important, and how do pH sensors ... measurement to assist those in process industries with these ... description of pH measurement in the process industries. The ...
(Date:11/18/2014)... November 18, 2014 2014 ... Industry is professional and in-depth report on ... basic information, including its definition, characterization, application, ... outline. This exploration covers the worldwide business ... industry examination covering macroeconomic environment & financial ...
Breaking Biology Technology:“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 2“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 3“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 4Cytori Therapeutics to Provide Corporate Update and Investor Presentation on December 4 through a Live, Interactive Webcast 2Cytori Therapeutics to Provide Corporate Update and Investor Presentation on December 4 through a Live, Interactive Webcast 3Cytori Therapeutics to Provide Corporate Update and Investor Presentation on December 4 through a Live, Interactive Webcast 4pH Guide from METTLER TOLEDO Explains Measurement, Theory and Practice of pH Applications 2PTMEG Market: 2019 Global Polytetrahydrofuran Industry Development Trends & Analysis Now at DeepResearchReports.com 2PTMEG Market: 2019 Global Polytetrahydrofuran Industry Development Trends & Analysis Now at DeepResearchReports.com 3
... South Korean scientists have succeeded in engineering the bacterium ... research, published in the journal Biotechnology and Bioengineering ... this important chemical which is traditionally created using fossil ... is an important platform chemical with a wide range ...
... - Net Profit Up 11%, - Strong Research and Investment Effort, - Positive net ... 25 August 2009 under the chairmanship,of Albert Saporta approved the 2009 half year financial statements: , , In million Euros ... ... %CA, Sales ...
... , , SAN MARINO, ... company that develops drug compounds for HIV/AIDS, autoimmune diseases, and cancer, ... releases distributed by collegestock.com on August 25 and August 26, and ... Reader Grapevine: There,s Something About Viral Genetics, Inc. (VRAL)," on August ...
Cached Biology Technology:Pioneering research succeeds in producing industrially vital chemical through engineered bacteria 2STALLERGENES: 1st Half-Year 2009: Performance Ahead of Expectations 2STALLERGENES: 1st Half-Year 2009: Performance Ahead of Expectations 3STALLERGENES: 1st Half-Year 2009: Performance Ahead of Expectations 4Viral Genetics Responds to Rumors of Imminent FDA Filing and Third Party Press Releases 2Viral Genetics Responds to Rumors of Imminent FDA Filing and Third Party Press Releases 3
... Description: Proteinase K is a ... wide range of applications purified from the fungus ... the carboxyl group of N-substituted hydrophobic aliphatic and ... as a serine protease. Proteinase K is useful ...
... high throughput, water bath thermal cycler capable of ... This equates to 9,216 reactions per run when ... transfers a basket of plates between three water ... considerably faster than those of peltier block cyclers. ...
... Dideoxycytidine Dideoxycytidine is a cytidine analog that ... retroviral activity. Immunogen: Chemical / ... The specificity of the ddC antiserum was ... of ddC to moles of ddC analog at ...
... The Jouan MSC series of Class ... working conditions and certification to the ... regulation ensures that the cabinets cannot ... conditions. Natural lighting, low noise and ...
Biology Products: