News tagged with tree species

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Darwin's Tree of Life May Be More Like a Thicket

(PhysOrg.com) -- In On The Origin of Species, Darwin used the image of a tree of life to illustrate how species evolve, one from another. Even today, branches sprouting from lower branches (representing ancest ...

Jan 27, 2009 weblog
4.8 / 5 (9) 2

Forest mortality and climate change: The big picture

Over the past two decades, extensive forest death triggered by hot and dry climatic conditions has been documented on every continent except Antarctica. Forest mortality due to drought and heat stress is expected to increase ...

Sep 09, 2012
4.1 / 5 (10) 0 | with audio podcast