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foodstuff at the tops of conifers

Robert J Meyerson writes:

> Even if they weren't at the very tops of the trees, conifers (as well as
>  most trees, now that I think about it) have an annoying habit of
>  becoming rather sparse near the very top.  

Not true. I've just spent 2 weeks touring Ca. with a botanist whose speciality 
was cypresses, and one thing that strikes me is that _many_ different species 
conifers have _no_ foliage at lower levels; they lose them due to loss of 
and concentrate the foliage at upper, well-lit canopies (this for _forest_ 
species). Other species, such as (sorry can't think of Latin name) (English) 
Scot's Pine is an open heathland tree and yet has a canopy at the top. Ditto 
California's Digger Pine and other species.

Plenty of foodstuff for an adapted animal.