In light of the minimal genetic diversity observed in the present koala populations, which of the following outcomes is a possible consequence?
The likelihood of inbreeding within the current koala population decreases.
Koalas in the current populations demonstrate heightened resilience against emerging diseases.
Koalas in the current populations exhibit a loss of reproductive compatibility with other species.
The current koala populations face diminished capacity to adapt to environmental fluctuations.
Given the minimal genetic diversity observed in the present koala populations, this implies that there is a limited range of genetic traits and variations within the population. Genetic diversity is crucial for a species' ability to adapt to changing environmental conditions. A lack of genetic diversity reduces the likelihood of having individuals with beneficial genetic variations that could help them adapt and survive in different environments. With reduced genetic diversity, the koala populations may be more susceptible to environmental changes such as habitat loss, climate shifts, or the emergence of new threats. This diminished capacity to adapt could put the koalas at a disadvantage and make it more challenging for them to survive and thrive in changing conditions.
Therefore, option 4 is the correct answer.