population growth
biology
News •
Immigrants Dominate U.S. Population Growth
• Dec. 20, 2024, 4:16 AM ET (Wall Street Journal)
population growth, in population ecology, a change in the number of members of a certain plant or animal species in a particular location during a particular time period. Factors affecting population growth include fertility, mortality, and, in animals, migration—i.e., immigration to or emigration from a particular location. The average change in a population over time is referred to as the population growth rate. A positive growth rate indicates a population increase, and a negative growth rate indicates a population decrease. The upper limit of a population in a given environment, referred to as the environment’s carrying capacity, is determined by ...(100 of 685 words)