ecological niche

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ecological niche

  1. the physical space occupied by an organism.
  2. the organism's functional role in the community (e.g. TROPHIC LEVEL).
  3. other conditions of the organism's existence, such as preferred temperature, moisture and pH, combining spatial habitat with functional interaction with other species.


emanating from or pertaining to ecology.

ecological biome
see biome.
ecological climax
the state of balance in an ecosystem when its inhabitants have established their permanent relationships with each other.
ecological fallacy
bias following misinterpretation that ecological factors affect all individuals equally.
ecological imbalance
the naturally occurring changes in the environment, e.g. bushfires, floods, volcanic fallout, which leave it unbalanced with respect to the type and quality of the feed they provide.
ecological interface
the border between two ecosystems.
ecological mosaic
a pattern of interspersed ecosystems.
ecological niche
1. the position occupied by an organism in relation to other organisms and to the environment.
2. a particular part of an ecological environment in which a particular plant or animal species prospers. It is the set of terms, in relation to food and water supply and relationship with predators and disease and with competitors, by which the organism achieves its full biological potential.


a small recess, depression or indentation, especially a recess in the wall of a hollow organ that tends to retain contrast media, as revealed by radiography.

ecological niche
the geographical location in the physical environment which the particular organism occupies best, in which it thrives best. The boundaries are determined by the suitability of the climate and the feed provided and competition with predators and collaboration with synergists.
niche pericarditis
an abattoir finding in normal cattle; small red velvety patches on the outside of the great vessels.
References in periodicals archive ?
That is, if climatic changes drive range disjunctions that create opportunities for population differentiation, generally over the Pleistocene (Haffer 1969, 1974, Simpson & Haffer 1978), and if fundamental ecological niches are conservative over evolutionary time periods (Peterson et al.
However, a vineyard with a cover crop has more ecological niches than one that is clean tilled.
Theory predicts that ecological niche evolution should occur slowly over time, because adaptation rates are typically slower than extinction rates under conditions outside the fundamental niche (Gomulkiewicz and Holt, 1995).
The model organisms are covered in detail, but an effort has also been made to represent the diversity of filamentous fungis and their ecological niches, as well as the means of investigating them.
gattii is an invasive species, one that is expanding into ecological niches that it has not previously been known to occupy.
Metagenomics is thus a new field of research which has been developed during the last decade with the object of understanding the diversity of different ecological niches formed by cultivable and non-cultivable microorganisms.
The UBC scientist, Karen Bartlett, explains, "As climate change happens, new ecological niches will become available to organisms, and we will see this kind of thing happen again.
Known as marsupials, these animals had pouches but filled ecological niches populated elsewhere by lions, hyenas, hippos, tapirs, and other large animals.
In order to survive and endure, images require ecological niches or ecosystems that provide hospitable habitats or environments for their future growth: such as workshops, ateliers, and academies, as well as related ecosystems for display--churches, courts, museums, galleries.

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