ENVS200 Lecture Notes - Lecture 13: Extinction Vortex, Near-Threatened Species, Inbreeding Depression
12 Apr 2018
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Document Summary
Conservation is the collective name we give to the various actions we can tale to slow down or even reverse these losses of species and of biodiversity. Critically endangered: if there is considered to be more than a 50% probability of extinction in 10 years or three generations, which is longer; Endangered: if there is more than a 20% chance of extinction in 20 years or five generations; Vulnerable: if there is a greater than 10% chance of extinction in 100 years; Near threatened: if the species is close to qualifying for a threat category or judged likely to qualify in the near future; Of least concern: if it does not meet any of these threat categories. Individuals that breed with close relatives are more likely to produce offspring that receive harmful alleles from both parents. The deleterious effects that result are known as inbreeding depression.
