What is the term for individuals moving out of a population?

The term that refers to individuals moving out of a population is emigration. This process involves the departure of individuals from one location to another, resulting in a decrease in the population of the area being left. Emigration is a critical concept in ecology and population dynamics as it affects the size and growth rate of populations. It can be influenced by various factors, including environmental conditions, availability of resources, and social dynamics within a species. Understanding emigration helps researchers and ecologists assess population changes and the health of ecosystems. Other related terms, while important, refer to different processes such as immigration, which describes individuals moving into a population, and migration, which can refer to both emigration and immigration as part of larger, often seasonal movements.