What does genetic diversity refer to?

Genetic diversity refers to all the different genes within all the members of a population. This concept highlights the variability of genetic information within a species, which can include variations in alleles, gene combinations, and overall genetic makeup. High genetic diversity within a population is crucial for the adaptability and resilience of organisms to changes in the environment, such as disease outbreaks or climate fluctuations. It allows for a greater chance that some individuals within the population possess traits that will enable them to survive and reproduce in challenging conditions, thereby sustaining the population over time. This variability is fundamental to the process of evolution and the overall health of ecosystems, as it contributes to the stability and functionality of biological communities.