RE: Cook Forest update   John Eichholz
  Mar 12, 2004 07:03 PST 

Ed, Dale:

Dale's data is so deep it can already provide for many kinds of
analysis. I recently posted about the distribution of heights of Black
Cherry in the vicinity of the state co-champ in MTSF. A similar
analysis of Dale's BC data also shows a bell-type distribution, with a
median and mode of 120'

Here is the data, and the rounding down to 5's:
black cherry 87.02 85
black cherry 95.73 95
black cherry 104.5 100
black cherry 104.77 100
black cherry 105.31 105
black cherry 109.6 105
black cherry 110.5 110
black cherry 111.14 110
black cherry 111.47 110
black cherry 113.3 110
black cherry 113.91 110
black cherry 114.1 110
black cherry 116.4 115
black cherry 117.23 115
black cherry 117.46 115
black cherry 118.4 115
black cherry 119.21 115
black cherry 119.8 115
black cherry 119.87 115
black cherry 120.1 120
black cherry 120.1 120
black cherry 120.5 120
black cherry 120.7 120
black cherry 120.9 120
black cherry 122.55 120
black cherry 123.1 120
black cherry 123.7 120
black cherry 124 120
black cherry 124.62 120
black cherry 124.69 120
black cherry 126.7 125
black cherry 127.8 125
black cherry 128.8 125
black cherry 128.86 125
black cherry 128.87 125
black cherry 129.8 125
black cherry 131.5 130
black cherry 133.74 130
black cherry 136.24 135
black cherry 136.39 135
black cherry 137 135
black cherry 137.49 135

This data, unlike the MTSF data, is not from a single stand, but an
aggregate at the site level. Also, it does not purport to cover all BC
at Cook. Nevertheless, a similar distribution pattern shows up.

Dale, I would guess "Tony's BC stand" is a contiguous area. Are any
other BC stands at Cook in a tight geographic cluster?

I think foresters as well as researchers would be interested in any
eventual conclusion we could draw between the top height and the median
height for a species on a site.


Ed Frank wrote:

All joking aside, I am interested in the data set Dale is gathering on
the large pines at Cook Forest. It will be interesting to see how the
size distributions fall out and is certainly a worthwhile project. Dale

has provided us with a much larger data set for the state of
Pennsylvania than just a list of the big trees at various localities by
including a list of many significant trees besides just the largest and

much more analysis could be done with that kind of detailed information
(It is posted on the website)

The focus of the Eastern Native Tree Society should not be just on one
aspect of the forest.
RE: Cook Forest update   Dale J. Luthringer
  Mar 12, 2004 08:08 PST 


That stand of black cherry you mention is actually part of a larger
stand. I just broke it into named "sections" that I could remember for
future documentation. That section of black cherry you mention lays on
a northeast facining slope that stretches about 1.5 to 2 miles. The
tallest are usually towards the base of this slope, or on small benches
throughout the slope.

The black cherry in this area usually shares canopy dominance with E.
hemlock, Am. beech, and some E. white pine. I'd suggest many of the
largest black cherry are old specimens, >175-250 years old. There is
one in particular that might go a bit older, but is only around ~120ft
in height. We recently found a whopper that went to ~11ft x 140ft even.
140ft class black cherries are very rare. When you get into the upper
130's, you're starting to get close to the known upper height limit of
black cherry.