According to the article, it is a median minimum viable number of 4169 individuals. Interesting.
I thought it would have been at least in the 5 digits and not a little over 4000.
What i'm interested in now however is if this number also calculated human behaviour? I guess not since it talks about general biology and doesn't count social behaviour and/or laws into the fact (and especially human technological repoduction possibilities).
So i guess if one would like to establish a selfpopulating group of people according to human society it would have to be in the 5 digits to account for most human quirks as opposed to animals who breed almost no matter what.