8.2 2 Population Bottle Necks And Founder Effect

Question 1

Population bottleneck

Answer 1

Is the effect of an event or series of events that dramatically reduces the size of a population and causes a severe decrease in the gene pool of the population resulting in large changes in allele frequencies and reduction in genetic diversity

Question 2

Examples of population bottlenecks

Answer 2

Environmental disaster 
A new disease 
Hunting 
Very efficent predators 
Habitat destruction

Question 3

As population recovers

Answer 3

May become so different from orginal population that genetically it becomes a different species

Question 4

The founder effect

Answer 4

The loss of genetic variation that occurs when a small number of individuals become isolated forming a new population with allele frequencies not representive of the original population