Aquatic ecology and Biodiversity

Unit 4- Community ecology

4.2.2. Stability and diversity
Diversity is the number of species in a community while the Stability is the relative constancy in the abundance of population
Evolution
Evolution is the survival of fittest. Survival means live long enough to reproduce and have offspring who in turn can survive. Fitness means individuals in a population are more likely to pass on their genes to the next generation. It is influenced by many factors such as physical, physiological, and social conditions in the environment.
Natural selection
It is the differential reproduction and survival by genotypes. Natural selection is the mechanism of evolutionary change. It works on phenotypic expression of genotypes.