Population ecology is a major sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment. The older term, autecology (from Greek: αὐτο, auto, "self"; οίκος, oikos, "household"; and λόγος, logos, "knowledge") refers to roughly the same field of study, coming from the division of ecology into autecology—the study of individual species in relation to the… (More on Autecology)