Homework SourseThe Chinese Alligator Alligator sinensis above is a critical
The Chinese Alligator (Alligator sinensis; above) is a critically endangered species living in a restricted reserve area in the Yangtze River in China’s Anhui province. (Captive populations are doing much better; where individuals may live up to 70 years).
a)Your estimate of the effective population size above may actually be an overestimate of the true effective population size. What other factors might reduce the effective population size? Describe at least two.
b)Distinguish absolute fitness and relative fitness.
Solution
Effective population size (Ne) is the number of individuals in a population who contribute offspring to the next generation. The various factors that reduce the effective population size are as follows:
b. Distinguish between absolute fitness and relative fitness.
| Absolute Fitness | Relative Fitness |
| It is the ratio between the number of individuals with that genotype after selection to those before selection. | It is quantified as the average number of surviving progeny of a particular genotype compared with the average number of surviving progeny of competing genotype after single generation. |
| absolute fitness is represented as wabs | Relative fitnessis standarised absolute finess. It is represented as wrel |
