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2. Carrying capacity - Wikipedia

   en.wikipedia.org/wiki/Carrying_capacity

   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. The carrying capacity is defined as the environment 's maximal load, [clarification needed] which in population ...

3. I = PAT - Wikipedia

   en.wikipedia.org/wiki/I_=_PAT

   I = (PAT) is the mathematical notation of a formula put forward to describe the impact of human activity on the environment . The expression equates human impact on the environment to a function of three factors: population (P), affluence (A) and technology (T). It is similar in form to the Kaya identity which applies specifically to emissions ...

4. Competitive Lotka–Volterra equations - Wikipedia

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

   Here x is the size of the population at a given time, r is inherent per-capita growth rate, and K is the carrying capacity.. Two species. Given two populations, x 1 and x 2, with logistic dynamics, the Lotka–Volterra formulation adds an additional term to account for the species' interactions.

5. Metapopulation - Wikipedia

   en.wikipedia.org/wiki/Metapopulation

   In Levins' own words, it consists of "a population of populations". [1] A metapopulation is generally considered to consist of several distinct populations together with areas of suitable habitat which are currently unoccupied. In classical metapopulation theory, each population cycles in relative independence of the other populations and ...

6. Intraspecific competition - Wikipedia

   en.wikipedia.org/wiki/Intraspecific_competition

   An example of direct competition. Intraspecific competition is an interaction in population ecology, whereby members of the same species compete for limited resources. This leads to a reduction in fitness for both individuals, but the more fit individual survives and is able to reproduce. [1] By contrast, interspecific competition occurs when ...

7. 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.