Final answer:
Isolated populations are a concern for conservation biologists as they face restricted gene flow and genetic diversity, making them more vulnerable to extinction.
Step-by-step explanation:
Student isolation is a concern of conservation biologists because it leads to restricted immigration and emigration, which can negatively impact the gene flow and genetic diversity of a population. Isolated populations are more vulnerable to inbreeding, genetic drift, and the loss of adaptive potential, making them more at risk of extinction. Additionally, isolation can limit the ability of individuals to find suitable habitats, food, and mates, further threatening their survival.