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In biology and ecology, a resource is a substance or object in the environment required by an organism for normal growth, maintenance, and reproduction. Resources can be consumed by one organism and, as a result, become unavailable to another organism. [1] [2] [3] For plants key resources are light, nutrients, water, and space to
A free price system or free price mechanism (informally called the price system or the price mechanism) is a mechanism of resource allocation that relies upon prices set by the interchange of supply and demand. The resulting price signals communicated between producers and consumers determine the production and distribution of resources ...
Biological exponential growth is the unrestricted growth of a population of organisms, occurring when resources in its habitat are unlimited. [1] Most commonly apparent in species that reproduce quickly and asexually , like bacteria , exponential growth is intuitive from the fact that each organism can divide and produce two copies of itself.
The simplest form of ecological fitting is resource tracking, in which an organism continues to exploit the same resources, but in a new host or environment. In this framework, the organism occupies a multidimensional operative environment defined by the conditions in which it can persist, similar to the idea of the Hutchinsonian niche . [ 3 ]
3: Red dominates in the middle for the more abundant resources. Yellow adapts to a new niche restricted to the top and bottom and avoiding competition . In ecology , the competitive exclusion principle , [ 1 ] sometimes referred to as Gause's law , [ 2 ] is a proposition that two species which compete for the same limited resource cannot ...
The American economist Thorstein Veblen wrote a seminal tract on the development of the term as discussed in this article [tone]: The Engineers and the Price System. [3] [4] Its chapter VI, A Memorandum on a Practicable Soviet of Technicians discusses the possibility of socialist revolution in the United States comparable to that then occurring in Russia (the Soviets had not yet at that time ...
Scarcity rent is one of two costs the extraction of a finite resource imposes on society. The other is marginal extraction cost--the opportunity cost of resources employed in the extraction activity. Scarcity rent is the cost of "using up" a finite resource because benefits of the extracted resource are unavailable to future generations.
Consumer–resource interactions are the core motif of ecological food chains or food webs, [1] and are an umbrella term for a variety of more specialized types of biological species interactions including prey-predator (see predation), host-parasite (see parasitism), plant-herbivore and victim-exploiter systems. These kinds of interactions ...