enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Ecological niche - Wikipedia

    en.wikipedia.org/wiki/Ecological_niche

    Hutchinson's "niche" (a description of the ecological space occupied by a species) is subtly different from the "niche" as defined by Grinnell (an ecological role, that may or may not be actually filled by a species—see vacant niches). A niche is a very specific segment of ecospace occupied by a single species.

  3. Cenococcum geophilum - Wikipedia

    en.wikipedia.org/wiki/Cenococcum_geophilum

    A factor that may contribute to this wide niche breadth is the species ability to tolerate a wide range of stressors. Cenococcum geophilum isolates have been shown to tolerate freezing, [ 12 ] salinity, [ 13 ] and heavy metal [ 14 ] stressors, but is probably best known for its ability to tolerate water stress.

  4. Niche apportionment models - Wikipedia

    en.wikipedia.org/wiki/Niche_apportionment_models

    In a Dominance preemption model of niche apportionment the species colonize random portion between 50 and 100% of the smallest remaining niche, making this model stochastic in nature. A closely related model, the Geometric Series, [ 9 ] is a deterministic version of the Dominance pre-emption model, wherein the percentage of remaining niche ...

  5. Niche construction - Wikipedia

    en.wikipedia.org/wiki/Niche_construction

    For niche construction to affect evolution it must satisfy three criteria: 1) the organism must significantly modify environmental conditions, 2) these modifications must influence one or more selection pressures on a recipient organism, and 3) there must be an evolutionary response in at least one recipient population caused by the environmental modification.

  6. Occupancy–abundance relationship - Wikipedia

    en.wikipedia.org/wiki/Occupancy–abundance...

    Niche dynamics assume differences among species in their fundamental niche which should give rise to patterns in the abundance and distribution of species (i.e. their realized niches). In this framework, the abundance and distribution of a single species and hence the emergent patterns across multiple species, are driven by causal mechanisms ...

  7. Interspecific competition - Wikipedia

    en.wikipedia.org/wiki/Interspecific_competition

    Subadult male lion and female spotted hyena in the Masai Mara.The two species share the same ecological niche, and are thus in competition with each other. Interspecific competition, in ecology, is a form of competition in which individuals of different species compete for the same resources in an ecosystem (e.g. food or living space).

  8. AOL Mail

    mail.aol.com/?icid=aol.com-nav

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Realized niche width - Wikipedia

    en.wikipedia.org/wiki/Realized_niche_width

    A species' realized niche is usually much narrower than its fundamental niche width as it is forced to adjust its niche around the superior competing species. The physical area where a species lives, is its habitat. The set of environmental features essential to that species' survival, is its "niche." (Ecology. Begon, Harper, Townsend)