Logistic growth

Logistic growth describes how a population increases rapidly when resources are abundant, but slows down as it approaches the environment’s carrying capacity—the maximum number the environment can support. Initially, growth is exponential, but as resources become limited, the growth rate decreases, eventually stabilizing. Imagine a new species entering an environment with plenty of food and space; the population grows quickly at first, then levels off as space and resources become scarce, resulting in a characteristic S-shaped (sigmoid) curve. This model helps understand how populations naturally regulate their size over time.