FACTOID # 14: North Carolina has a larger Native American population than North Dakota, South Dakota and Montana combined.
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Encyclopedia > Plant community

A biocoenosis (alternatively, biocoenose or biocenose), termed by Karl Möbius in 1877, describes all the interacting organisms living together in a specific habitat (or biotope). Biotic community, biological community, and ecological community are more common synonyms of biocenosis, all of these representing the same concepts. The extent or geographical area of a biocenose is limited only by the requirement of a more or less uniform species composition (Kendeigh, 1961). An ecosystem, as originally defined by Tansley (1935), is a biotic community (or biocoenosis) along with its physical environment (or biotope as defined by many ecologists). Karl August Möbius (7 February 1825–26 April 1908) was a German ecologist. ... In biology and ecology, an organism (in Greek organon = instrument) is an assembly of molecules that influence each other in such a way that they function as a more or less stable whole and have properties of life. ... Habitat (from the Latin for it inhabits) is the place where a particular species lives and grows. ... A biotope is an area of uniform environmental (physical) conditions providing habitat(s) for a specific assemblage of plants and animals. ... In ecology, an ecosystem is a naturally occurring assemblage of organisms (plant, animal and other living organisms—also referred to as a biotic community or biocoenosis) living together with their environment (or biotope), functioning as a loose unit. ...

The importance of the biocoenosis concept in ecology is its emphasis on the interrelationships between species living in a geographical area. These interactions are as important as the physical factors to which each species is adapted and responding. In a very real sense, it is the specific biological community or biocoenosis that is adapted to conditions that prevail in a given place.

Biotic communities may be of varying sizes, and larger ones may contain smaller ones. The interactions between species are especially evident in food or feeding relationships. Therefore, a practical method of delineating biotic communities is to map the food network to identify which species feed upon which others and then determining the system boundary as the one that can be drawn through the fewest consumption links relative to the number of species within the boundary. Food chains and food webs describe the feeding relationships between species in a biotic community. ...

Mapping biotic communities is particularly important when identifying sites in need of environmental protection such as the British Site of Special Scientific Interest (SSSIs). The Australian Department of the Environment and Heritage maintains a register of Threatened Species and Threatened Ecological Communities under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act). A Site of Special Scientific Interest or SSSI is a conservation designation denoting a protected area in the United Kingdom. ... The Department of the Environment and Heritage (DEH) is a department of the Australian federal government. ...


  • Kendeigh, S. Charles. 1961. Animal Ecology. Prentice-Hall, Inc., Englewood Cliffs, N.J., 468 p.
  • Möbius, Karl. 1877. Die Auster und die Austernwintschaft. Berlin. (English translation) U.S. Commission Fish and Fisheries Report, 1880: 683-751.
  • Tansley, A. G. 1935. The use and abuse of vegetational concepts and terms. Ecology, 16(3): 284-307.

  Results from FactBites:
SFRA Chapter 2 (TERRA-2) - The History of Native Plant Communities in the South (3983 words)
In areas dominated by subsistence farming, less obvious impacts to the native plant communities occurred, such as the disruption of population processes caused by fragmentation, the introduction of exotic species, impacts on rare communities such as mountain bogs and glades, and widespread alterations in forest community structure related to timber harvesting and fuel-wood gathering.
Plant geography, the description of the distribution of plants, was the primary concern of European academics, capitalists, and naturalists.
He described the plant community as a form of superorganism to indicate his perception of the interdependence of all of the parts of a community, and he described succession as the development or life cycle of the organism.
  More results at FactBites »



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