Currently viewing the tag: "population viability"

Study indicates 5000 mature individuals are needed for population viability

Conservation Targets Too Small To Stop Extinction
RedOrbit

This determination could have profound implications for the protection of many species. Many biologists use a number of 2000 individuals in a population for maintenance of viable populations over the long term. In the Northern […]

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‎"At some point we must draw a line across the ground of our home and our being, drive a spear into the land and say to the bulldozers, earthmovers, government and corporations, “thus far and no further.” If we do not, we shall later feel, instead of pride, the regret of Thoreau, that good but overly-bookish man, who wrote, near the end of his life, “If I repent of anything it is likely to be my good behaviour."

~ Edward Abbey