September 12, 1995
Governor Racicot,
I am personally opposed to the reintroduction of Grizzly Bears for the reasons stated
by other Bitterroot residents but do not think the soils and vegetative history of the
area have been given adequate consideration.
At the time my Dad worked there for the USFS, around 1920, plus or minus 5 years, large
bands of sheep from both the Bitterroot and Idaho sides were summered in the area. These
fire successional grasslands are now greatly reduced or have disappeared entirely. USFS
fire suppression policy has been credited with this loss but I do not believe it is the
primary cause of this loss. Following is a discussion of some of the factors from an old
Bitterrooter whose family has been familiar with the area for over 100 years.
The proposed Grizzly Bear
Reintroduction Area is essentially the Idaho Batholith, a 14,000 square mile granite chunk
of rock. The soils covering the area are young and relatively under developed. Under a
cover of conifer trees they become extremely sterile, acid and generally low in cation
elements, these elements are some of the limiting essential elements required by
vertebrate animals, calcium being perhaps the key element as it is required in relatively
large amounts by vertebrate animals and also prinoiply determines soil PH which controls
the availability of Phosphorus, the other most important limiting element. Stockmen are
generally very familiar with livestock requirements for these elements. Feeds and Feeding
by Frank Morrison being the bible on this subject.
The soils in this area
were, for hundreds of years prior to the arrival of Europeans, maintained in their highest
state of productivity by Native American Firestick Farming or Pyrocultivation. This is a
more or less sophisticated system of vegetative management by burning.
The result of this
pyrocultivation is obviously the rapid cycling of the essential elements in vegetation.
The most important and persistent result of this pyrocultivation is the selection of
plants and plant communities which are adapted to frequent fire. These are the same plants
that concentrate the essential elements and have the highest (TDN) Total Digestible
Nutrient1 content and are the most palatable to animals.
Grass is the primary
desired result of this pyrocultivation as grass plant communities not only conserve soil
but conserve essential elements, thus raising soil PH to where these elements are most
available to plants.
A dominant feature of grass
plant communities is elevation of the "Cation Exchange Capacity" of the soil
from the organic residue, or humus, from grass roots. Conifer trees, in contrast, create a
duff layer on top of the soil which is the primary cause of "podzolization" or
acidification of forest soils, conifers are adapted to this acid soil and thus persist
under a "no fire" condition.
This very brief summary of
plant and animal ecology is necessary to understand why the area cannot support a vigorous
population of Grizzly Bears, or Elk, or Blue Grouse, or frogs, or Western Tanagers, or
Cutthroat Trout, or Grayling, or Steelhead, or Salmon, without Pyrocultivation as was done
by Native Americans thousands of years.
Attached is a very precise
summary of some of these issues by Charles E. Kay, PHD.
Sincerely yours,
Harvey J. Hackett
858 Groff Lane
Stevensville, Montana
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