BIOL 422 Lecture Notes - Lecture 14: Outcrossing, Wildlife Trade, Invasive Species
5 May 2020
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Document Summary
False positives and negatives must be controlled for. Identify species for enforcement of international wildlife trade laws. Us national forensics lab in oregon is essentially a wildlife crime lab. Useful for management actions (e. g. whether to allow outbreeding) Genetic diversity is worth conserving (in it"s own right and for benefits like disease resistan. Morphological studies may be inadequate for identifying species. At one point, there were > 22 definitions for species. However, there are problems with any definition of a subspecies. Reduction of area composed of a certain cover type. This leads to a reduction in population size. Then come in the stochastic and genetic problems. Unlike habitat loss, fragmentation is a change is connectedness or spatial configuration. Cause habitats to become fragmented, isolated or unconnected. Natural fragmentation is usually left untouched, even though there is a risk of inbreeding depression or genetic loss. Changes ecological interactions (i. e. food web or ecosystem shifts to account for loss)
