BIOL-1116 Lecture Notes - Lecture 2: Commercial Fishing, Sustainable Development, Effective Population Size
15 Mar 2017
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Chapter 56: define what is meant by conservation biology. Seeks to preserve life, integrates several fields: ecology, physiology, genetics, molecular biology, evolutionary biology: list the three major threats to biodiversity and give an example of each. Habitat destruction: the tall grass prarie s in mb occupying <0. 1% of its original area. Introduced species: humans moving other species to new areas. Overexploitation: when humans harvest plants or animals for food at high rates, not giving the species enough time to recover. This then plummets the population: define and compare the small-population approach and the declining-population approach. Small-population: prone to positive-feedback loops that draw it down an extinction vortex. Declining-population: focuses on threatened and endangered populations that show a downward trend, regardless of population size: distinguish between the total population size and the effective population size. Total population size: literally, the total population.
