Habitat

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Related to habitable: habitable room, habitable space

habitat

the environment in which an animal or plant normally lives or grows

Habitat

The sum of the environmental conditions that determine the existence of a community in a specific place where humans, animals, plants, and microorganisms live and its surroundings, both living and nonliving.

Habitat

 

an area of land or water occupied by an organism, a group of a single species, a biocenosis, or a synousia and possessing all conditions required for its existence (climate, topography, soil, food).

The habitat of a species is defined as the total area within the species’ range of distribution that satisfies the species’ ecological requirements. The habitat of a population is the part of the species’ habitat that will guarantee the existence of a population. The habitat of an individual is the actual area occupied by a given individual in all phases of its development. There are also animal habitats of family, herd, flock, or colony. There are plant habitats of groves, beds, and other communities. In terms of the use of a habitat, organisms are classified as stenotopic, occupying similar habitats only, and eurytopic, capable of occupying a variety of habitats within the given range of distribution.

The habitats of many species vary with the stage of development in the organism’s life cycle. For example, the larvae of amphibians usually live in water, and the adults on land. Many parasites have a dormant phase outside the given host and an active phase within the host (often limited even to certain organs). The various developmental phases of many parasitic plants are associated with different plant hosts. The part of the habitat that a species occupies for a limited time only (a season, a part of a day) or for a particular purpose (feeding, reproduction) is called a station. The habitat of a biocenosis is called a biotope.

REFERENCES

Naumov, N. P. Ekologiia zhivotnykh, 2nd ed. Moscow, 1963.
Osnovy lesnoi biogeotsenologii. Edited by V. N. Sukachev and N. V. Dylis. Moscow, 1964.

N. P. NAUMOV

habitat

[′hab·ə‚tat]
(ecology)
The part of the physical environment in which a plant or animal lives.

Habitat

(networking, graphics)
The original term for on-line graphical virtual communities or worlds. Created at Lucasfilm in 1985 by Randy Farmer and Chip Morningstar.

http://communities.com/habitat.html.
References in periodicals archive ?
Kane and Gelino's study suggests that the habitable zone surrounding stars could be considerably larger than previously suspected.
According to Scwieterman's co-author Timothy Lyons of the University of California - Riverside, their study marks the first time that Earth's environmental conditions were referenced in the search of alien life in habitable zones.
Future efforts to find alien life will focus on the composition of potentially habitable planets.A
"While most of the stars that Kepler observed are typically thousands of light years away from the Sun, Kepler observed a large enough sample of stars that we can perform a rigorous statistical analysis to estimate of the rate of Earth-size planets in the habitable zone of nearby sun-like stars." said Hsu.
Mais selon Rafael Luque, cette methode ne permet pas de confirmer si la planete est habitable. Pour cela, il faut utiliser la technique du transit, qui permet de mesurer sa taille, puis de calculer sa densite et sa composition (gazeuse ou pas).
"Our study is among the first to investigate climate stability of exoplanets and adds to the growing understanding of these potentially habitable nearby worlds," said Li.
The habitable zone is the region around a star where a planet with an Earth-like atmosphere on a circular orbit can support liquid water on its surface.
Hawking also gave light to a project that he is backing-the Breakthrough Starshot initiative-which aims to develop ultra-fast light-powered spacecraft that can accommodate humans to habitable worlds circling around the nearby star, Alpha Centauri.
"My goal is to construct the Habitable Sculpture on a site that will give it the recognition it deserves, both domestically and internationally.
Frank Drake's famous 1961 formulation refers to "habitable planets," and at the time Saturn and its moons were consid ered to be far outside the "Goldilocks zone." Yet, with the discovery that even remote Enceladus might be life-friendly, surely "moons of planets" should also be factored into the equation.
Each of the worlds orbits in the star's "habitable zone", the narrow corridor where temperatures are mild enough to permit bodies of surface water such as lakes and oceans.