Talk:Population

Open Issue: Wikipedia gives 500 - 1000 individuals to be a minimaly viable population: Minimum viable population

I was under the impression that a minimally viable gene-pool consists of 40 unrelated individuals - Jarogers2001 01:07, 21 October 2008 (UTC)

The number may depend on wether the colonists are preselected to exclude known genetic diseases and disorders. Frozen embryos could be sent with the colonists to provide added genetic diversity without the extra space (aside from refrigeration/support - still a lot less than the equivalent number of full grown humans). Aside form the outstanding moral/ethical stickiness, people may be willing to donate "extra" embryos from fertility treatments, or donate them outright. --Laertes 01:24, 21 October 2008 (UTC)

I thought a minimally viable population was around 100. T.Neo 07:07, 21 October 2008 (UTC)

I went ahead and asked an expert. This is what I found out: There is no definite minimum viable population, just a survivability curve based upon the number of individuals of a species spread out over an arbitrary geographic area. The larger the area and higher the population, the higher the statistical probability of survival. Genetic diversity also affects the curve. Thinking the other way: viability decreases as geographic spread, genetic diversity, and population decrease. Geographic spread will avoid taxing the local (in this case Artificial) environment and will ensure survival should something happen to one or more habs/settlements. Instead of bringing embryos, I suggest sperm as it is easier to implant and stores can be diluted (unless we develop some form of artificial womb). - Jarogers2001 06:32, 26 October 2008 (UTC)