Ecological threshold can be described as the point at which a relatively small change in external conditions causes a rapid change in an ecosystem. When an ecological threshold has been passed, the ecosystem may no longer be able to return to its state. The trespassing of ecological threshold often leads to rapid change of ecosystem health.
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Famous quotes containing the words ecological and/or threshold:
“Could it not be that just at the moment masculinity has brought us to the brink of nuclear destruction or ecological suicide, women are beginning to rise in response to the Mother’s call to save her planet and create instead the next stage of evolution? Can our revolution mean anything else than the reversion of social and economic control to Her representatives among Womankind, and the resumption of Her worship on the face of the Earth? Do we dare demand less?”
—Jane Alpert (b. 1947)
“I had a good talk with Alcott this afternoon. He is certainly the youngest man of his age we have seen,—just on the threshold of life. When I looked at his gray hairs, his conversation sounded pathetic; but I looked again, and they reminded me of the gray dawn.”
—Henry David Thoreau (1817–1862)