Navigation Links
Competitive exclusion principle


The competitive exclusion principle, sometimes referred to as Gause's Law of competitive exclusion or just Gause's Law, states that two species that compete for the exact same resources cannot stably coexist. One of the two competitors will always have an ever so slight advantage over the other that leads to extinction of the second competitor in the long run.

The competitive exclusion principle is a theoretical concept that follows from abstract mathematical modeling. The conditions under which competitive exclusion must hold are not very well understood; several natural ecosystems are known in which competitive exclusion seems to be violated. The best known example is the paradox of the plankton (or short plankton paradox): All plankton species live on a very limited number of resources, primarily solar energy and minerals that are dissolved in the water. According to the competitive exclusion principle, only a small number of plankton species should be able to coexist on these resources. Nevertheless, large numbers of plankton species coexist within small regions of open sea.

A partial solution to the paradox lies in raising the dimensionality of the system. Spatial heterogeneity, multiple resource competition , competition-colonization trade-offs , and lag prevent exclusion (ignoring stochastic extinction over longer time-frames). However, such systems tend to be analytically intractable. In addition, many can theoretically support an unlimited number of species. A new paradox is created: Most well-known models that allow for stable coexistence allow for unlimited number of species to coexist, yet in nature, any community contains just a handful of species.

See also: Ecology

References

  • Gause, G. F. (1934). The struggle for existence. Baltimore, MD: Williams & Wilkins.

'"/>


(Date:2/1/2016)... 2016  Wocket® smart wallet ( www.wocketwallet.com ) announces the launch of ... Fatone . Las Vegas , where Joey appeared ... Las Vegas , where Joey appeared at the Wocket ... video ad was filmed at the Consumer Electronics Show (CES2016) in ... to meet and greet fans. --> ...
(Date:1/25/2016)... Jan. 25, 2016  Glencoe Software, the world-leading supplier ... publication industries, will provide the data management solution OMERO ... Photo ... Phenotypic analysis measures the characteristics ... allowing comparisons between states such as health and disease, ...
(Date:1/20/2016)... A market that just keeps on growing. Molecular Diagnostics ... genomics knowledge. Learn all about it in this new ... trends are pushing market growth and company valuations. Trends ... pathogen evolution - next generation sequencing - emergence of ... the role of genetic material in Disease and Health ...
Breaking Biology News(10 mins):
Other biology definition