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  2. Carrying capacity - Wikipedia

    en.wikipedia.org/wiki/Carrying_capacity

    The carrying capacity is defined as the environment's maximal load, [clarification needed] which in population ecology corresponds to the population equilibrium, when the number of deaths in a population equals the number of births (as well as immigration and emigration). Carrying capacity of the environment implies that the resources ...

  3. Sustainable population - Wikipedia

    en.wikipedia.org/wiki/Sustainable_population

    Many studies have tried to estimate the world's sustainable population for humans, that is, the maximum population the world can host. [5] A 2004 meta-analysis of 69 such studies from 1694 until 2001 found the average predicted maximum number of people the Earth would ever have was 7.7 billion people, with lower and upper meta-bounds at 0.65 and 9.8 billion people, respectively.

  4. List of countries by ecological footprint - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries by ecological footprint. The table is based on data spanning from 1961 to 2013 from the Global Footprint Network 's National Footprint Accounts published in 2016. Numbers are given in global hectares per capita.

  5. Human overpopulation - Wikipedia

    en.wikipedia.org/wiki/Human_overpopulation

    The belief that global population levels will become too large to sustain is a point of contentious debate. Those who believe global human overpopulation to be a valid concern, argue that increased levels of resource consumption and pollution exceed the environment's carrying capacity, leading to population overshoot. [18]

  6. List of countries by arable land density - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Arable density (m² per capita) by country. This is a list of countries ordered by physiological density."Arable land" is defined by the UN's Food and Agriculture Organization, the source of "Arable land (hectares per person)" as land under temporary crops (double-cropped areas are counted once), temporary meadows for mowing or for pasture, land under market or kitchen gardens, and land ...

  7. List of countries by population (United Nations) - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Statistical subregions as defined by the United Nations Statistics Division [1]. This is the list of countries and other inhabited territories of the world by total population, based on estimates published by the United Nations in the 2024 revision of World Population Prospects.

  8. Ricker model - Wikipedia

    en.wikipedia.org/wiki/Ricker_model

    Bifurcation diagram of the Ricker model with carrying capacity of 1000. The Ricker model, named after Bill Ricker, is a classic discrete 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, [1]

  9. List of countries and dependencies by population density

    en.wikipedia.org/wiki/List_of_countries_and...

    This is a list of countries and dependencies ranked by population density, sorted by inhabitants per square kilometre or square mile. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1. The list also includes unrecognized but de facto independent countries. The figures in the table ...