fishing4clues said:If you look at the film you will notice that there is a lot of green foilage still on the trees. and there is no ICE in the water. They are wearing light-weight gear not heavy coats as is the norm in the middle of Feb.
I'm confused as to what video you are talking about?
jurek said:However, it will happen only if a population will remain low for many generations.
That isn't exactly true. The problem with a bottleneck isn't the time but the amount of individuals that survive it. It could take one generation, but if you lose 95% of a population you are going to lose a ton of genetic variability in the following breeding season.
jurek said:Many birds and mammals have extremely low genetic variation and are doing fine - some apparently from natural causes..
Could you give an example of this?
Last edited: