DNA study suggests Bigfoot exists?
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12-06-2012, 07:40 AM
Join Date: May 2008
Location: Athens, GA
In terms of conservation biology, the rule of thumb is 50/500. For the short term, an
(basically the number of breeding individuals expressed as a proportional average of male and females of (at least) 50 individuals is required to stave off the effects of inbreeding. In the long run, an effective population of 500 is required for mutation to create alleles at a rate that can counteract genetic drift.
Pulled from the space colonization page, but its the same model that you use in conservation biology/endangered species management. I have a final in my endangered species class in about 20 mins, trust me on this.
Researchers in conservation biology have tended to adopt the "50/500" rule of thumb initially advanced by Franklin and Soule. This rule says a short-term effective population size (Ne) of 50 is needed to prevent an unacceptable rate of inbreeding, while a long‐term Ne of 500 is required to maintain overall genetic variability. The N_e = 50 prescription corresponds to an inbreeding rate of 1% per generation, approximately half the maximum rate tolerated by domestic animal breeders. The N_e = 500 value attempts to balance the rate of gain in genetic variation due to mutation with the rate of loss due to genetic drift.
This means that there needs to be at least 500 Sasquatch within an area small enough for all 500 to be able to interact/breed. At the very least, a fragmented group of sub-populations close enough to allow for migration between groups. Anything less than that and the population doesn't have enough individuals to maintain genetic diversity over time.
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