Final answer:
A forest fire is an example of density-independent regulation, where an individual's survival chances are not influenced by the population density.
Step-by-step explanation:
A forest fire is an example of density-independent regulation. Density-independent regulation refers to factors that influence the mortality of a population regardless of its density. These factors are typically abiotic, such as weather events, natural disasters like volcanic eruptions, and in this case, forest fires. An individual organism's chances of survival during a forest fire are not affected by how many other organisms are present in that area; therefore, the regulation of the population by a forest fire happens independently of its density.