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Is this the end of forests as we've known them?


Is this the end of forests as we ve known them?
Alastair Gee
Camille Stevens-Rumann never used to worry about seeing dead trees. As a wildland firefighter in the American west, she encountered untold numbers killed in blazes she helped to extinguish. She knew fires are integral to forests in this part of the world; they prune out smaller trees, giving room to the rest and even help the seeds of some species to germinate.
“We have largely operated under the assumption that forests are going to come back after fires,” Stevens-Rumann said.
But starting in about 2013, she noticed something unsettling. In certain places, the trees were not returning. For an analysis she performed of sites across the Rocky Mountains, she found that almost one-third of places that had burned since 2000 had no trees regrowing whatsoever. Instead of tree seedlings, there were shrubs and flowers. ....

United States , Sierra Nevada , Mariposa Grove , New Mexico , San Francisco , Rocky Mountains , Canada General , Juniper Hills , David Mcnew Getty , Durango Herald , Camille Stevens Rumann , Steven Ostoja , Nate Mcdowell , Fredericj Brown , Henrik Hartmann , Craig Allen , Natureworld Alamy , Adriane Esquivel Muelbert , International Tree Mortality Network , Birmingham Institute Of Forest Research , Intergovernmental Panel On Climate , Pacific Northwest National Laboratory , University Of Birmingham , Us Geological Survey New Mexico , Colorado State University , Intergovernmental Panel On Climate Change ,

'Pompeii of prehistoric plants' unlocks evolutionary secret -- study


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Spectacular fossil plants preserved within a volcanic ash fall in China have shed light on an evolutionary race 300 million years ago, which was eventually won by the seed-bearing plants that dominate so much of the Earth today.
New research into fossils found at the Pompeii of prehistoric plants , in Wuda, Inner Mongolia, reveals that the plants, called Noeggerathiales, were highly-evolved members of the lineage from which came seed plants.
Noeggerathiales were important peat-forming plants that lived around 325 to 251 million years ago. Understanding their relationships to other plant groups has been limited by poorly preserved examples until now.
The fossils found in China have allowed experts to work out that Noeggerathiales are more closely related to seed plants than to other fern groups. ....

Yi Zhang , Jun Wang , Inner Mongolia , Nei Mongol , Indiana University , United States , Czech Republic , Tony Moran , Shijun Wang , David Dilcher , Jason Hilton , Hermannw Pfefferkorn , Institute Of Geology , Shenyang Normal University , Birmingham Institute Of Forest Research , International Communications , University Of Birmingham , Chinese Academy Of Sciences , Academy Of Sciences The Czech Republic , Centre Of Palaeobiodiversity , Proceedings Of The National Academy Sciences , University Of Vienna , University Of Birmingham Institute Forest Research , Nanjing Institute , National Academy , Forest Research ,