Jurassic records predict effects of global warming on marine lifeFeb 20, 4:50 pm
Washington, February 20 (ANI): Findings from fieldwork along the North Yorkshire coast reveal strong parallels between the Early Jurassic era of 180 million years ago and current climate predictions over the next century, according to researchers at Plymouth University, UK.Through geology and palaeontology, they've shown how higher temperatures and lower oxygen levels caused drastic changes to marine communities, and that while the Jurassic seas eventually recovered from the effects of global warming, the marine ecosystems that returned were noticeably different from before."Our study of fossil marine ecosystems shows that if global warming is severe enough and lasts long enough it may cause the extinction of marine life, which irreversibly changes the composition of marine ecosystems," said Professor Richard Twitchett, from the University's School of Geography, Earth and Environmental Sciences, and a member of its Marine Institute.Professor Twitchett, with Plymouth colleagues Dr Silvia Danise and Dr Marie-Emilie Clemence, undertook fieldwork between Whitby and Staithes, studying the different sedimentary rocks and the marine fossils they contained. This provided information about the environmental conditions on the sea floor at the time the rocks were laid down.The researchers, working with Dr Crispin Little from the University of Leeds, were then able to correlate the ecological data with published data on changes in temperature, sea level and oxygen concentrations.The team found a 'dead zone' recorded in the rock, which showed virtually no signs of life and contained no fossils. This was followed by evidence of a return to life, but with new species recorded."The results show in unprecedented detail how the fossil Jurassic communities changed dramatically in response to a rise in sea level and temperature and a decline in oxygen levels," stated Professor Twitchett."Patterns of change suffered by these Jurassic ecosystems closely mirror the changes that happen when modern marine communities are exposed to declining levels of oxygen. Similar ecological stages can be recognised in the fossil and modern communities despite differences in the species present and the scale of the studies," he added.The results are revealed for the first time in this month's PLOS ONE scientific journal. (ANI)
Global variations in malaria parasites revealed Jun 28, 1:20 pm
Washington D.C, Jun 28 (ANI): A team of scientists has found that the malaria parasite Plasmodium vivax is evolving rapidly to adapt to conditions in different geographical locations.Full Story »
Texting changes your brain's rhythm Jun 28, 12:28 pm
Washington D.C, Jun 28 (ANI): There is now a biological reason why you shouldn't text and drive as new study has found that messaging with smartphones can change the rhythm of brain waves.Full Story »
This is your brain when buying music Jun 28, 11:27 am
Washington D.C, Jun 28 (ANI): What happens in the brain when purchasing music? A team of researchers has investigated this question.Full Story »
This new technique will help your shampoos' flow freely Jun 27, 3:20 pm
Washington, D.C., June 27 (ANI) A new study has found a way through which soap products can flow freely.Full Story »
- LIGO may detect formation of black-hole binary stars: Study
- Driverless cars pose 'safety dilemma'
- Scientists have new theory on how 'climate' affects 'violence'
- Dinosaur-era bugs knew how to camouflage
- Earth's present magnetic field isn't 'same old, same old'
- Global warming forecast: Even warmer days ahead
- For volcanoes, 'calm before the storm' holds true
- Soon, waste water may power Kerala homes
- Your win lies in the `eyes` of opponent
- 'Coral zombies' may eat away world's reefs
TOP VIDEO STORIES