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  2. Population density - Wikipedia

    en.wikipedia.org/wiki/Population_density

    Population density is the number of people per unit of land area, usually per square kilometre or square mile. Learn about the factors, effects and examples of population density, and compare the most densely populated countries and territories in the world.

  3. Mark and recapture - Wikipedia

    en.wikipedia.org/wiki/Mark_and_recapture

    Learn how to estimate population size using mark and recapture, a method that captures, marks, and releases animals. The Lincoln-Petersen method is one of the methods that assumes a closed population and uses the formula N = K/k/p, where N is the population size, K is the number of animals captured on the second visit, k is the number of recaptured animals, and p is the proportion of marked ...

  4. Lincoln index - Wikipedia

    en.wikipedia.org/wiki/Lincoln_index

    The Lincoln index is a statistical method to estimate the population size of an animal species based on the number of species observed by two independent methods. Learn about its applications, formulation, limitations and related concepts.

  5. Population dynamics - Wikipedia

    en.wikipedia.org/wiki/Population_dynamics

    Population dynamics is the mathematical study of the size and age composition of populations as dynamical systems. It covers topics such as Malthusian growth, logistic equation, intrinsic rate of increase, epidemiology and geometric populations.

  6. Taylor's law - Wikipedia

    en.wikipedia.org/wiki/Taylor's_law

    2.1 Biology. 2.2 Physics. 2.3 ... Wilon and Room equation and m is the sample ... index which is independent of both sample size and population density and bounded by ...

  7. I = PAT - Wikipedia

    en.wikipedia.org/wiki/I_=_PAT

    I = PAT is a mathematical equation that relates human impact on the environment to population, affluence and technology. Learn the history, factors and criticisms of this formula and how it applies to different environmental issues.

  8. Allee effect - Wikipedia

    en.wikipedia.org/wiki/Allee_effect

    The Allee effect is a positive correlation between population size or density and individual fitness. Learn about its history, background, definition, subcategories, and ecological mechanisms from this Wikipedia article.

  9. Beverton–Holt model - Wikipedia

    en.wikipedia.org/wiki/Beverton–Holt_model

    The Beverton–Holt model is a classic discrete-time population model which gives the expected number n t+1 (or density) of individuals in generation t + 1 as a function of the number of individuals in the previous generation, + = + /.

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