BioConcepts

minimal nicheMinimalnische (ger.)

• Minimal conditions that permit the survival of an organism. (HWB 2011)
  category niche

  1981

  a set of ‘barely adequate’ recources may be termed the minimal niche. […] It is […] the availability of a minimal niche (empty, expropriable or a mixture of these) which determines whether a species can invade a new system. And the number of species that can coexist in equilibrium, i.e., the answer to the species-packing problem, will be determined, in part, by the sizes of the minimal niches of the species that are potentially members of the assemblage

  Hurlbert, S.H. (1981). A gentle depilation of the niche: Dicean resource sets in resource hyperspace. Evol. Theor. 5, 177-184: 183.