Sentences with phrase «ancient ecosystems»

While this research enhances our knowledge of ancient ecosystems, it also emphasizes the often - overlooked importance of trace fossils, like footprints, and the work of amateur scientists.

Scientists have also used drilling and other techniques to look at ancient ecosystems under other ice shelves, but those methods often leave an incomplete picture.

By sequencing whatever DNA emerges (called eDNA) from even a thimbleful of ancient soil, researchers are reconstructing ancient ecosystems as far back as 700,000 years ago with astonishing clarity.

The key lies in organic materials found in fossil bones, which contain evidence for how ancient ecosystems functioned, according to a new study available online and in the September issue of the Journal of Herpetology.

«Palaeothentid marsupials once included a diversity of species that filled a variety of roles in ancient ecosystems.

The researchers now think that cyanobacteria played a larger role than previously believed in creating phosphorites in shallow waters, thereby allowing today's scientists a unique window into ancient ecosystems.

Similar analyses of fossils of other members of the same ancient ecosystem may reveal that multiple species participated in the ancient migrations, scientists say.

As the planet faces the dawn of a sixth mass extinction, scientists are searching for clues about the uncertain road ahead by exploring how ancient ecosystems collapsed and bounced back from traumatic upheavals.

Co-author Randall Irmis, of the Natural History Museum of Utah and the University of Utah's Department of Geology and Geophysics, told Discovery News that the recent discoveries reveal ancient ecosystems that were nearly unheard of just a decade ago.

There is nothing on Earth any better than a coal mine for analyzing ancient ecosystems.

To this end, Kareiva advises conservationists to craft «a new vision of a planet in which nature — forests, wetlands, diverse species, and other ancient ecosystems — exists amid a wide variety of modern, human landscapes.»

Ryan McKellar added: «Amber pieces preserve tiny snapshots of ancient ecosystems, but they record microscopic details, three - dimensional arrangements, and labile tissues that are difficult to study in other settings.

But it was before the explosion itself, «during these anoxic phases... that a lot of morphological novelty arises,» Erwin explains, likely in small, soft - bodied animals that existed on the sidelines of ancient ecosystems and which left little to no fossil record.

It took less than four years for Railroad Ridge's ancient ecosystems to collapse.

He and the dozen senior scientists he has assembled for this expedition are reconstructing the ancient ecosystem of the Hell Creek Formation.

So when Horner was casting about for a potentially fruitful location to reconstruct an ancient ecosystem, he recognized that Hell Creek offered the opportunity to pursue a number of related lines of inquiry, including reexamining the factors that led to mass extinction.»

In their attempt to reconstruct this ancient ecosystem, the Hell Creek team has developed a new way to view mass extinction.»

«It is impressive to see small clues and associations build up to form a larger picture of ancient ecosystems.»

For years we have been told that invasive alien species are driving native ones to extinction and eroding the integrity of ancient ecosystems.

«Ancient ecosystem response to «big five» mass extinction: Ingenious modeling shows that the stability of ancient ecosystems depended on species with important, big - picture roles in food web.»

«We now know that it protects an ancient ecosystem, as well,» Capps said.

This has potentially broad implications sulfate and oxygen levels in the oceans during this time, for the our understanding of Earth's ancient ecosystems.

The FMP does not restore these ancient ecosystems; rather it reduces both wildlife habitat and biodiversity and moves the Park towards becoming an industrial forest, not a protected area.