Populations have numbers of individuals per area {population density, ecology}.
effects
Denser populations have more pathogens, parasites, and competition. Infanticide, cannibalism, competition, disease, genetic change, breeding-behavior changes, and food-supply changes can increase.
regulation
Species have population-density-dependent population controls, to avoid extinction. Controls can reduce population if density increases: increased predation by predators, decreased food supply, increased territoriality, increased emigration, reduced hormones from increased stress, reduced fertility, and more inhibited development. Low-density populations and stable populations respond quicker to population-density-dependent parameters. High-density and unstable populations respond slower to density-dependent parameters and respond at higher thresholds.
Biological Sciences>Ecology>Community>Population
4-Ecology-Community-Population
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Date Modified: 2022.0224