In summer 70% of bites consisted of mountain maple, willow, and paper birch
on large feeding station, random feeding station, and random plot paths.
Along the half nearest Lake Superior, aspen and paper birch
predominate with stand ages generally ranging from <50 y to 100 y: a few isolated pockets of older forest also remain.
On some species, such as paper birch
, this pressure causes thin layers of the outer cork to separate and peel away from the trunk and branches in horizontal, curly strips--creating my third distinctive bark type and a new stack of photos.
The brown-reddish discoloration found in paper birch
wood is considered traumatic heartwood in the literature (Campbell and Davidson 1941; Shigo 1967, 1986; Siegle 1967; Shigo and Larson 1969; Shigo and Hillis 1973; Basham 1991; Allen 1996; Hallaksela and Niemisto 1998; Boulet 2005).
PERCENTAGE OF GREY OR PAPER BIRCH
LEAVES MINED BY FENUSA PUSILLA AND PERCENTAGE OF LEAF MINER LARVAE PARASITIZED BY THE ICHNEUMONID LATHROLESTES NIGRICOLLIS IN SEVEN NORTHEASTERN STATES IN 2007.
Mutual use of leaf-shelters by lepidopteran larvae on paper birch
enjoys another birch trait--it finishes very well.
We have all seen weeping birch and many paper birch
slowly thin out at their top and then die.
Beyond the womb-like cube pavilion, I can glimpse the garden, where visitors will be able to relax among the paper birch
The hardwood component, primarily paper birch
and aspen, represents a largely untouched economic engine for future generations of wood producers.
This landscape designer from Los Angeles, California refused to believe that I would walk away from a lucrative job offer rather than agree to plant a clump of paper birch
on the north side of a North Carolina mountain top.
If you have the space ( and it will ultimately grow to over 20m (70ft) ( then the paper birch
, Betula papifera, from North America, is outstanding.