speciespopulations
A species population refers to the total number of individuals of a particular species living in a specific geographic area at a given time. This number is not static and can change due to various factors. Population dynamics study these changes and the underlying mechanisms. Key aspects of population study include population size, density, distribution, and age structure. Population density is the number of individuals per unit area or volume. Distribution describes how individuals are spread out, which can be uniform, random, or clumped. Age structure, the proportion of individuals in different age groups (pre-reproductive, reproductive, post-reproductive), influences a population's potential for growth.
Several factors influence population size. Birth rates (natality) increase population size, while death rates (mortality) decrease