A Population of Frogs Was Reduced 60 Years Ago by a Major

Multiple Choice

A population of frogs was reduced 60 years ago by a major outbreak of a disease.The population was reduced to a very small size (less than 300 individuals) and the frequency of mating with relatives increased.Recently,this population has been observed to have morphological defects and reduced survivorship.There has also been a reduction in fecundity.As a result the population is becoming smaller and smaller.What is happening to this population and how could it be helped?

A) There is nothing to do for this population. It is too small and sick.
B) Increase breeding in the population to offset the amount of competition.
C) Raise eggs in captivity and then release them later. Intra- and inter- specific competition is too great for this population
D) This population is experiencing an extinction vortex. The population may be rescued by introducing new alleles to increase genetic diversity.