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Bacteria on old-growth trees may help forests grow
Date:6/7/2011

floor.

Moss is the crucial element. The amount of nitrogen coming from the canopy depends on trees having mosses.

"You need trees that are large enough and old enough to start accumulating mosses before you can have the cyanobacteria that are associated with the mosses," Lindo said. "Many trees don't start to accumulate mosses until they're more than 100 years old. So it's really the density of very large old trees that are draped in moss that is important at a forest stand level. We surveyed trees that are estimated as being between 500 and 800 years old."


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Contact: Katherine Gombay
katherine.gombay@mcgill.ca
514-398-2189
McGill University
Source:Eurekalert

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