Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?

Q. Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics? 

 

Answer:- 

The small number of surviving tigers is the cause of worry from the point of view of genetics because Genetics is the science of heredity and variations which support the evolutionary survival of a species. The size of its population, plays a dominant role for its evolutionary expansion. For a small population of tigers, diversity of traits will be adversely affected. Small population of tiger may indulge in inbreeding, which will further result in decrease in population due to untimely deaths caused by the genetic deformities. In the event of a disease or natural disaster possibility of survival against numbers will be greatly reduced. Not only this, Tiger forms an integral part of food chain in Eco-system. Its role as predator, in animal kingdom, helps in checking the population growth of animals in down food chain. The pretense of tiger, ensures an healthy and balanced Eco-system with all inherent diversity in other species. Small number of surviving tiger will affect the diversity negatively and will result in an ecological imbalance.