"Water, soil and the earth's green mantle of plants make up the
world that supports the animal life of the earth."
63
"the Earth's vegetation is
part of a web of life in which there are intimate and essential relations between plants and the earth, between
plants and other plants , between plants and animals."
64
"One of the most tragic examples
of our bludgeoning of the landscape
is to be seen in the sagebrush lands of the West"
"The land of the sage is the land of the high western plains
and the lower slopes of the mountains that rise above them, a land born of the
great uplift of the Rocky Mountain system many millions of years ago."
"As the landscape evolved (changed), there must have
been a long period of trial and error."
64
"The sage–low growing and
shrubby–could hold its place on the mountain slopes and on the (dry) plains,
and within its small grey leaves it could hold moisture enough to defy the thieving
winds."
"Along with the plants, animal life too was evolving in
harmony with the searching requirements of the land."
65
"The sage and the grouse seem made for one another. The
original range of the bird coincided with the rang of the sage, and as the sagelands have been reduced, so the populations of grouse
have dwindled."
"The antelope too have adjusted their life to the sage."
65
"And another life looks to the sage. Mule deer often
feed on it."
66
"...the eventual effect of
eliminating the sage...." for the cattle industry -- beef.
"But even if the program succeeds in its immediate
objective, it is clear that the whole closely knit fabric of life has
been ripped apart."
67
chemical versus biological controls
the costs and merit of each method
68-83
Example: herbicide 2-4 D causes anoxia–deprived of
oxygen–affects on soil?
76 - 79
Example 2: Crabgrass in suburban lawns and
spraying; a question of toxicity
(80)
Example 3: Klamath weed or European introduced St.
John's wort and its spread and biotic control with beetles
[biological control].
81-83
Rachel Carson, Silent
Spring pp 1-51, 83 & see web site: & The Green Mantle Initiative
