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Study finds hemlock trees dying rapidly, affecting forest carbon cycle http://apocadocs.com/s.pl?1235673863
Otto, NC -- New research by U.S. Forest Service Southern Research Station (SRS) scientists and partners suggests the hemlock woolly adelgid is killing hemlock trees faster than expected in the southern Appalachians and rapidly altering the carbon cycle of these forests.... Eastern hemlock, a keystone species in the streamside forests of the southern Appalachian region, is already experiencing widespread decline and mortality because of hemlock woolly adelgid (a tiny nonnative insect) infestation. The pest has the potential to kill most of the region's hemlock trees within the next decade. As a native evergreen capable of maintaining year-round transpiration rates, hemlock plays an important role in the ecology and hydrology of mountain ecosystems.... The authors suggest that infrequent frigid winter temperatures in the southern Appalachians may not be enough to suppress adelgid populations.
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[Read more stories about:
massive die-off, ecosystem interrelationships, invasive species, carbon sinks]
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Haley says: "Sung to the tune of "Edelweiss": Adelgid, adelgid, you look happy to see me...."
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