Final answer:
Population growth is regulated by density-dependent and density-independent factors. Understanding these factors is important for managing populations and preventing extinction or overpopulation.
Step-by-step explanation:
Nature regulates population growth in a variety of ways. These are grouped into density-dependent factors, in which the density of the population at a given time affects growth rate and mortality, and density-independent factors, which influence mortality in a population regardless of population density. Conservation biologists want to understand both types because this helps them manage populations and prevent extinction or overpopulation.