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Recreation ecology is the scientific study of environmental impacts resulting from recreational activity in protected natural areas. This field of study includes research and monitoring assessments of biophysical changes, analyses to identify causal and influential factors or support carrying capacity planning and management, and investigations of the efficacy of educational, regulatory, and ...
Ampacity is a portmanteau for ampere capacity, ... of the cable's thermal environment and an evaluation of the commercial value of the lost service life due to excess ...
Ecosystems are dynamically ... Biodiversity plays an important role in ecosystem services which by definition maintain and ... which is known as the "carrying capacity."
Using these techniques, Malthus' population principle of growth was later transformed into a mathematical model known as the logistic equation: = (), where N is the population size, r is the intrinsic rate of natural increase, and K is the carrying capacity of the population.
Jack mackerel caught by a Chilean purse seiner Fishing down the food web. Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in the species becoming increasingly underpopulated in that area.
English ecologist Charles Elton applied the term resistance to the ecosystem properties which limit the ability of introduced species to successfully invade communities. These properties include both abiotic factors like temperature and drought, and biotic factors including competition , parasitism , predation and the lack of necessary mutualists .
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.
The prey population eventually recovers, starting a new cycle. This suggests that the population of the herbivore fluctuates around the carrying capacity of the food source, in this case, the plant. Several factors play into these fluctuating populations and help stabilize predator-prey dynamics.