ISCI 1001 Lecture Notes - Lecture 15: Natural Farming, Lynn Townsend White Jr., Genetic Diversity
26 Oct 2015
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Document Summary
Isn"t simply a way of growing crops it"s the cultivation & perfection of human beings. Seed balls: powdered [red] clay, seed mixtures, water -> balls. The roots of our ecologic crisis (1960s: de-sacralization of nature. Sum total of all organisms in an area, taking into account the diversity of: ecosystem, species, genes. Provides raw material for adaptation to changing local conditions. Dna varieties among individuals within species, subspecies, populations. If genetic diversity is low in a population, the population may not be able to adapt to environmental change. Limited variety of genetic material available to be passed on by the small # of surviving individuals. Maybe inbreeding depression: when genetically similar, parents mate & produce weak or defective offspring. Set of organisms that share unique characteristics/who can reproduce & produce fertile offspring. Species richness -> # of diff species in particular area. A, b different species (*diagrams in lecture slide: ab, ab, ab, ab, ab, ab.
