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Thus, the carrying capacity is the maximum number of individuals of a species that an environment can support in long run. [17] Population size decreases above carrying capacity due to a range of factors depending on the species concerned, but can include insufficient space, food supply, or sunlight.
If a country does not have enough ecological resources within its own territory to cover its population's footprint, then it runs an ecological deficit and the country is termed an ecological debtor. Otherwise, it has an ecological reserve and it is called a creditor. [1] To a significant degree, biocapacity correlates with access to water ...
Competition is an interaction between organisms or species in which both require one or more resources that are in limited supply (such as food, water, or territory). [1] Competition lowers the fitness of both organisms involved since the presence of one of the organisms always reduces the amount of the resource available to the other. [2]
If "I" exceeds the carrying capacity, then the system is said to be in overshoot, which may only be a temporary state. Overshoot may degrade the ability of the environment to endure impact, therefore reducing the carrying capacity. Impact may be measured using ecological footprint analysis in units of global hectares (gha). Ecological footprint ...
Originally, Wackernagel and Rees called the concept "appropriated carrying capacity". [13] To make the idea more accessible, Rees came up with the term "ecological footprint", inspired by a computer technician who praised his new computer's "small footprint on the desk". [14]
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. [5]
However, as the population reaches its maximum (the carrying capacity), intraspecific competition becomes fiercer and the per capita growth rate slows until the population reaches a stable size. At the carrying capacity, the rate of change of population density is zero because the population is as large as possible based on the resources ...
Biocapacity used in correlation to ecological footprint can therefore suggest whether a specific population, region, country or part of a world is living in the means of their capital. Accordingly, the study of biocapacity and ecological footprint is known as the Ecological Footprint Analysis (EFA). [1]