Navigation Links
Research reveals contrasting consequences of a warmer Earth
Date:9/3/2012

A new study, by scientists from the Universities of York, Glasgow and Leeds, involving analysis of fossil and geological records going back 540 million years, suggests that biodiversity on Earth generally increases as the planet warms.

But the research says that the increase in biodiversity depends on the evolution of new species over millions of years, and is normally accompanied by extinctions of existing species. The researchers suggest that present trends of increasing temperature are unlikely to boost global biodiversity in the short term because of the long timescales necessary for new forms to evolve. Instead, the speed of current change is expected to cause diversity loss. The study which is published in Proceedings of the National Academy of Sciences (PNAS) says that while warm periods in the geological past experienced increased extinctions, they also promoted the origination of new species, increasing overall biodiversity.

The new research is a refinement of an earlier study that analysed biodiversity over the same time interval, but with a less sophisticated data set, and concluded that a warming climate led to drops in overall diversity. Using the improved data that are now available, the researchers re-examined patterns of marine invertebrate biodiversity over the last 540 million years.

Lead author, Dr Peter Mayhew, of the Department of Biology at York, said: "The improved data give us a more secure picture of the impact of warmer temperatures on marine biodiversity and they show that, as before, there is more extinction and origination in warm geological periods. But, overall, warm climates seem to boost biodiversity in the very long run, rather than reducing it."

Dr Alistair McGowan, of the School of Geographical and Earth Sciences at the University of Glasgow said: "The previous findings always seemed paradoxical. Ecological studies show that species richness consistently increases towards the Equator, where it is warm, yet the relationship between biodiversity and temperature through time appeared to be the opposite. Our new results reverse these conclusions and bring them into line with the ecological pattern."

Professor Tim Benton, of the Faculty of Biological Sciences at the University of Leeds, added: "Science progresses by constantly re-examining conclusions in the light of better data. Our results seem to show that temperature improves biodiversity through time as well as across space. However, they do not suggest that current global warming is good for existing species. Increases in global diversity take millions of years, and in the meantime we expect extinctions to occur."


'/>"/>

Contact: David Garner
david.garner@york.ac.uk
44-019-043-22153
University of York
Source:Eurekalert

Related biology news :

1. NIH-funded researchers restore sense of smell in mice using genetic technique
2. UCLA researchers discover missing link between stem cells and immune system
3. Researchers develop new, less expensive nanolithography technique
4. Research yields two firsts regarding protein crucial to human cardiac function
5. BUSM researchers find potential key to halt progression, reverse damage from emphysema
6. Researchers launch new Rust-Tracker to monitor deadly wheat fungus in 27 nations
7. Science research led in Gulf of Mexico by Penn State biologist to be honored with US award
8. University of Tennessee Space Institute researchers make clinical trials a virtual reality
9. £30 million boost for biomedical engineering research
10. New equipment is breath of fresh air for childrens lung researchers
11. Mount Sinai researchers solve mystery surrounding the death of two sisters nearly 50 years ago
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/2/2017)... Summary This report provides all ... and its partnering interests and activities since 2010. ... The Partnering Deals and Alliance since 2010 report provides ... of the world,s leading life sciences companies. ... ensure inclusion of the most up to date deal ...
(Date:2/28/2017)... News solutions for biometrics, bag drop and ... ... to 16 March, Materna will present its complete end-to-end passenger ... is a real benefit for passengers. To accelerate the whole ... touch point solutions to take passengers through the complete integrated ...
(Date:2/22/2017)... With the biometrics market to exceed ... technologies that innovative and agile startups must incorporate ... the changing competitive landscape: multifactor authentication (MFA), point-of-sale ... "Companies can no longer afford to cut ... Dimitrios Pavlakis , Industry Analyst at ABI Research. ...
Breaking Biology News(10 mins):
(Date:3/29/2017)... ... March 29, 2017 , ... The Crohn’s ... cures for inflammatory bowel diseases (IBD), and ReachMD , the nation’s largest ... to ReachMD learners. , The partnership, which launched in the fall of ...
(Date:3/29/2017)...  Vermillion, Inc. (NASDAQ: VRML), a bio-analytical solutions ... results for the fourth quarter and full year ... a pivotal year for us with our first ... agreements, major reimbursement progress with Medicare, positive medical ... addition we cleared our 2 nd generation ...
(Date:3/29/2017)... YORK , March 29, 2017 "Surging ... programs deployed by the government are expected to drive ... The gesture recognition market is expected to ... a CAGR of 29.63% between 2017 and 2022. The ... 15.27 billion by 2022, growing at a CAGR of ...
(Date:3/29/2017)... 29, 2017 WuXi Biologics, a leading ... to biologics and a WuXi AppTec Affiliate, today ... Best Bioprocessing Excellence Award from IMAPAC, a leading ... aims to recognize outstanding leaders and trend-setters of ... bioprocessing and biomanufacturing experts in the industry, along ...
Breaking Biology Technology: