Answer is: inbreeding depression. Inbreeding depression<span> is the reduced </span>biological fitness<span> in a given </span>population<span> (in this case frogs) as a result of </span>inbreeding or breeding of related individuals. This is result of population bottleneck (tsunami). Population bottleneck<span> </span><span>is a sharp reduction in the size of a </span>population<span> due to environmental events.</span>
