01:119:115 Lecture 28: Conservation Biology
17 Jan 2019
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Document Summary
Humans are rapidly pushing many species toward extinction. Seeks to preserve life, integrating several fields to perceive biological diversity. Genetic diversity comprises genetic variation within a population and between population. Endangered species is "in danger of becoming extinct" A threatened species is likely to become endangered soon. Local extinction = extirpation (loss in one area) Ecosystem services ways natural ecosystem and species help sustain human life. Habitat fragmentation and destruction lead to loss of biodiversity. Introduced species are those that humans move to new geographic regions. Overharvesting = human harvesting plants/animals at rates exceeding the ability of populations of those species to rebound. Global change = alterations in climate, atmospheric chemistry and broad ecological systems. Reduces the capacity of the earth to sustain life. Small populations are vulnerable to interbreeding and genetic drift. Minimum viable population (mvp) = minimum population size at which a species can survive.
