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Re: Savannah and Grassland
Rick Cook (rcook@BIX.com)
13 Oct 1995 09:32:01 GMT
Harry Erwin wrote:
> Homo is the keystone because the alternative
>source of fire (lightning- caused) is rare in temperate grassland and
>unknown in tropical savannah.
>
There are other species which can be keystones for this process, notably
browsers such as elephants. I understand that the elephants, giraffes and
other browsers have a lot to do with maintaining the African veldt.
--RC
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