Niche

There are several things called niche, a word English has borrowed from French. Generally, a niche is a special place within the scheme of things. It sometimes denotes the function or position of a thing within a structure.
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Function of a particular species in an ecological community; all aspects of an organisms existence that enable it to survive and reproduce. For example, an Osprey primarily preys upon fish therefore its niche is near water, ...
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niche The biological role played by a species.
niche overlap The extent to which two species require similar resources; speci?es the strength of the competition between the two species.
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Niche
The range of environmental variables such as temperature, humidity, etc. in which a species can survive and reproduce.
Nuclear genome
The portion of the genome contained in the nucleus ie the chromosomes.
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Niche. A general term referring to the range of environmental space occupied by a species
Niche overlap. An overlap in resource requirements by two species
Nitrogen fixation. The conversion of gaseous nitrogen to nitrate by specialized bacteria.
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niche -- n. The portion of the environment which a species occupies, defined in terms of the conditions under which an organism can survive, and may be affected by the presence of other competing organisms.
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niche See ecological niche.
nicotine adenine dinucleotide A local electron carrier that transfers hydrogen atoms and electrons within metabolic pathways; a free-moving carrier, not membrane bound in a transport system; NAD+.
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ecological niche
The sum total of an organism's utilization of the biotic and abiotic resources of its environment.
ecological pyramid ...
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Ecological niches
It is comparatively easy for a poikilotherm to accumulate enough energy to reproduce. Poikilotherms in the same ecological niche often have much shorter generations than homeotherms: weeks rather than years.
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There aren't niches that exist in certain areas of the brain like the hippocampus where neurogenesis can occur.
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The evolution of new species or sub- species to fill unoccupied ecological niches. Aerobe. A microorganism that grows in the presence of oxygen. See Anaerobe. Agarose gel electrophoresis.
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Adaptive radiation: evolutionary divergence of members of a single phyletic line into many different niches. Allele: one of two or more different chemical codes possible for a given gene. Offer variation in a given trait.
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This group also includes the "missing lithotrophs" performing the "anammox" process - organisms that can break down ammonia in wastewater anaerobically; this ecological niche has been postulated for many years, ...
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NicheThe place in a biological community occupied by a particular species in its relation to other species. Nicotinamide adenine dinucleotide (NAD) and NADPCoenzymes that transfer electrons within the cell.
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It occurs when the zones of two species with a similar ecological niche abut but do not overlap. The two species may have contact at the common boundary of their zones.
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The mammalian fauna of Australia is often cited as an example of this; marsupial mammals fill most of the equivalent niches that placentals fill in other ecosystems.
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Adaptive radiation. The evolution of new species or sub- species to fill unoccupied ecological niches.
Aerobe. A microorganism that grows in the presence of oxygen. See Anaerobe.
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community: a situation in which populations of organisms each contain a habitat and a niche.
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