By Andy Kerr
The most pervasive and
insidious threat to the Oregon Desert is domestic
livestock grazing. Livestock have done more
damage to the Earth than the chainsaw. Bovine
bulldozers have impoverished the arid West at the
expense of both water quality and quantity,
native fish and wildlife, native vegetation and
soil. They are an abomination.
The sins of domestic
livestock (a.k.a. meadow maggots) in the arid
West are countless, but to enumerate a few:
1. Domestic livestock
consume forage at the expense of wildlife.
When you see domestic livestock on public lands,
you are not seeing bighorn sheep, pronghorn, elk,
deer or other forage-eating wildlife. In one
study, scientists found that domestic livestock
grazing consumed 88.8 percent of the available
forage (cattle 82.3 percent, feral horses 5.8
percent, sheep 0.7 percent), leaving 11.2 percent
to wildlife species (mule deer 10.1 percent,
pronghorn 0.9 percent, bighorn sheep 0.1 percent,
elk 0.1 percent). [2]
2. Domestic livestock
endanger native fish and wildlife. Scientists
summarized the percentages of 1,880 species
imperiled by habitat loss, alien species,
pollution, over exploitation, and disease. In the
United States, grazing has contributed to the
demise of 22 percent of the speciescompared
to logging (12 percent) and mining (11 percent).
In particular, livestock grazing is especially
harmful to plant species, affecting 33 percent of
endangered plant species. [3]
3. Domestic livestock
destroy streams by degrading both water quality
and total water quantity. Cattle devolved
from species inhabiting wet meadows in northern
Europe and Asia. They love water.
This is well illustrated in one study,
which found that a riparian zone in eastern
Oregon comprised only 1.9 percent of the
allotment, but produced 21 percent of the
available forage and 81 percent of the forage
consumed by cattle. [4]
Streams of the arid West
are more defiled and tragic than wild and scenic.
Dr. Joy Belsky (and associates), a world-renowned
grasslands ecologist, exhaustively reviewed the
scientific literature and found the following:
A large number of studies document that
cattle grazing degrades the environment....
Locally, grazing affects:
- Water quality:
livestock deposit pathogenic bacteria
into streams and increase nutrient
content, water turbidity, and water
temperatures, all of which harm
populations of cold water fish and
other species.
- Stream channel morphology: grazing
results in stream downcutting and
streambank loss, and reduces channel
and streambank stability, number and
quality of deep pools, and number of
stream meanders.
- Hydrology (stream flow
patterns): grazing causes
an increase in runoff, flood water
velocity, number of flood events, and
peak flow, while reducing (or
stopping) summer flow and lowering
the water table.
- Riparian soils:
grazing increases the area of bare
ground, soil compaction, and erosion,
while reducing water infiltration and
soil fertility.
- Instream vegetation:
grazing causes an increase in algal
populations but a decline in
submerged higher plants.
- Streambank vegetation:
grazing reduces the cover, biomass,
and productivity of herbaceous and
woody vegetation, and impedes plant
succession.
- Aquatic and riparian wildlife:
grazing leads to the reduction in
diversity, abundance, and
productivity of cold-water fish,
amphibians, reptiles and
invertebrates and alters the
composition and diversity of birds
and mammals.
Consequently, livestock degrade all
aspects of local stream and riparian ecology.
At the regional level..., grazing
reduces the quality and quantity of water for
domestic water supplies, reduces reservoir
life and the hydroelectric capacity of
reservoirs, increases maintenance costs of
irrigation canals, and reduces commercial and
recreational fishing opportunities. In
addition, grazing fragments riparian
corridors used by migratory wildlife,
intensifies flood damage, and homogenizes the
biotic landscape. [5]
4. Domestic livestock
are a hazard to human health. The intestinal
bacterium E. coli appears first in streams
and then in us. The microscopic fecal parasite Cryptosporidium
now contaminates nearly all surface waters that
have been tested nationwide. [6] (No more euphemisms. Refuse to
use the term cow pies. Pie is good and
tasty, and unlike pumpkin pies or berry pies, cow
pies aren't filled with cow.)
Eating beef contributes
to heart disease. Cattle on open-range highways
have more right-of-way than automobiles.
5. Domestic livestock
cost the taxpayers money. Taxpayers are
subsidizing livestock grazing on the public land
to the tune of $10.74 for every $1.00 received. [7] Because of these subsidies, it
costs an elite set of ranchers only $1.35 per
month to keep a cow and calf on public land. It
costs more to feed a house cat. If it ever made
sense to grazing the public lands, it certainly
does not now.
Don't expect most public
land grazing permittees and many government
bureaucrats to change their ways. Unfortunately,
it is difficult to get someone to understand
something when their livelihood, profits or
lifestyle depends on not understanding it.
© 2000 by The
Larch Company, L.L.C. Text reprinted with
permission from Oregon
Desert Guide: 70 Hikes by Andy
Kerr, published by The Mountaineers, Seattle, WA.
_____________________
Footnotes
[1] Used
with permission. Oregon Desert Guide: 70 Hikes
by Andy Kerr (pages 64-67, Seattle: The
Mountaineers Books, 2000).
[2] Cited
in Robert R. Kindschy, Charles Sundstrom, and
James D. Yoakum. Wildlife Habitats in Managed
RangelandsThe Great Basin of Southeastern
Oregon: Pronghorns. USDA Forest Service and
USDI Bureau of Land Management, General Technical
Report PNW-145, 1982, 6.
[3] D. S.
Wilcove, D. Rothstein, J Dubow, A Phillips, and
E. Losos. "Quantifying Threatened to
Imperiled Species in the United States: Assessing
the Relative Importance of Habitat Destruction,
Alien Species, Pollution, Overexploitation and
Disease. BioScience 48, no. 8 (August 1,
1998): 607-615
[4]
Studies cited in J. Belsky, A Matzke, and S.
Uselman. "Survey of Livestock Influences on
Stream and Riparian Ecosystems in the Western
United States," Journal of Soil and
Watershed Conservation 54, no. 1 (1999)):
419-431
[5] Ibid.
[6] E. A.
Weiss, M.D. Wilderness 911. Seattle: The
Mountaineers Books, 1998, 194.
[7] H. D.
Radtke and S. W. Davis, Economic Study of
Implementing the Proposed Oregon High Desert
Protection Act. Bend, OR: Oregon Natural
Desert Association, 1998.
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