The logistic growth model describes how populations grow in a limited environment. Initially, the population increases rapidly when resources are abundant. However, as resources become scarce, the growth rate slows down, leading to a stable population size known as the carrying capacity. This model is often represented by an S-shaped curve. In this model, factors such as food availability, space, and competition play crucial roles in regulating population growth. The logistic growth model is commonly used in ecology to understand the dynamics of species like deer or bacteria in various ecosystems.