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  2. Carrying capacity - Wikipedia

    en.wikipedia.org/wiki/Carrying_capacity

    The carrying capacity of an environment is the maximum population size of a biological species that can be sustained by that specific environment, given the food, habitat, water, and other resources available.

  3. Competition (biology) - Wikipedia

    en.wikipedia.org/wiki/Competition_(biology)

    [2] In the study of community ecology, competition within and between members of a species is an important biological interaction. Competition is one of many interacting biotic and abiotic factors that affect community structure, species diversity, and population dynamics (shifts in a population over time). [3]

  4. Ecological footprint - Wikipedia

    en.wikipedia.org/wiki/Ecological_footprint

    Ecological Footprint per person and HDI of countries by world regions (2014) and its natural resource consumption [42] According to the 2018 edition of the National footprint accounts, humanity's total ecological footprint has exhibited an increasing trend since 1961, growing an average of 2.1% per year (SD= 1.9). [33]

  5. Population ecology - Wikipedia

    en.wikipedia.org/wiki/Population_ecology

    In a population, carrying capacity is known as the maximum population size of the species that the environment can sustain, which is determined by resources available. In many classic population models, r is represented as the intrinsic growth rate, where K is the carrying capacity, and N0 is the initial population size.

  6. Competitive Lotka–Volterra equations - Wikipedia

    en.wikipedia.org/wiki/Competitive_Lotka...

    This model can be generalized to any number of species competing against each other. One can think of the populations and growth rates as vectors, α 's as a matrix.Then the equation for any species i becomes = (=) or, if the carrying capacity is pulled into the interaction matrix (this doesn't actually change the equations, only how the interaction matrix is defined), = (=) where N is the ...

  7. Relative species abundance - Wikipedia

    en.wikipedia.org/wiki/Relative_species_abundance

    Thus if k is 0.5, the most common species would represent half of individuals in the community (50%), the second most common species would represent half of the remaining half (25%), the third, half of the remaining quarter (12.5%) and so forth.

  8. I = PAT - Wikipedia

    en.wikipedia.org/wiki/I_=_PAT

    The maximum endurable impact is called the carrying capacity. As long as "I" is less than the carrying capacity the associated population, affluence, and technology that make up "I" can be perpetually endured. If "I" exceeds the carrying capacity, then the system is said to be in overshoot, which may only be a temporary state. Overshoot may ...

  9. Maximum sustainable yield - Wikipedia

    en.wikipedia.org/wiki/Maximum_sustainable_yield

    The equation for figure 2 is the differential of equation 1.1 (Verhulst's 1838 growth model): [13] = (equation 1.2) can be understood as the change in population (N) with respect to a change in time (t). Equation 1.2 is the usual way in which logistic growth is represented mathematically and has several important features.