competitive exclusion


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Related to competitive exclusion: Competitive exclusion principle, Resource partitioning

competitive exclusion

n
(Environmental Science) ecology the dominance of one species over another when both are competing for the same resources, etc
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References in periodicals archive ?
According to the Fact.MR report, among the various sources of animal feed probiotics, demand is especially strong for probiotic bacteria lactobacillus as it stimulates immunity, increases colonization resistance and boosts competitive exclusion. Lactobacillus is widely known for its health stimulating properties.
"It's essentially a pre-biotic that encourages competitive exclusion in bacteria and drives overall improvements in gut microbiomes." Only tiny amounts of liquid BCXF are needed to fuel gut bacteria - one litre per 10,000 of water.
Volterra has argued that the coexistence of two or more predators competing for fewer prey resources is impossible, which was later known as the principle of competitive exclusion. The principle of competitive exclusion was reexamined by Koch [1] in 1974 who found via numerical simulation that the coexistence of two predators competing exploitatively for a single prey species in a constant and uniform environment was in fact possible when the predator functional response to the prey density was assumed according to nonlinear function, and such coexistence occurred along what appeared to be a periodic orbit in the positive octant of [R.sup.3] rather than an equilibrium.
System (2) globally exhibits three dynamic scenarios in five parametric regions which are competitive exclusion, competitive coexistence, and existence of an infinite number of equilibrium solutions; see [1-3].
When the Nurmi concept or CE concept was first discovered, researchers believed that a probiotic needed to mimic the full complement of native microflora to achieve competitive exclusion. (60, 67, 68) Studies using a single species of bacteria sometimes reported no significant effects.
histolyticum colonisation through mechanisms including competitive exclusion.
The utilization of similar niches seems to be in conflict with the competitive exclusion principle, which holds that two or more species cannot permanently coexist if they have identical ecological needs (Levin, 1970).
The topics include prosimians and the second radiation, paleobiogeographical perspectives on the origin of the Platyrrhini, species diversity and diet in monkeys and apes during the Miocene, the single-species hypothesis of competitive exclusion among lower Pleistocene hominids, and a molecular approach to the question of human origins.
Lab activities cover concepts including predator-prey dynamics, carrying capacity, resource partitioning, the competitive exclusion principle, keystone species, food webs, limiting nutrients, and succession.

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