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  2. Community (ecology) - Wikipedia

    en.wikipedia.org/wiki/Community_(ecology)

    A bear with a salmon. Interspecific interactions such as predation are a key aspect of community ecology.. In ecology, a community is a group or association of populations of two or more different species occupying the same geographical area at the same time, also known as a biocoenosis, biotic community, biological community, ecological community, or life assemblage.

  3. Ethnoecology - Wikipedia

    en.wikipedia.org/wiki/Ethnoecology

    Ecology is the study of the interactions between living organisms and their environment; enthnoecology applies a human focused approach to this subject. [2] The development of the field lies in applying indigenous knowledge of botany and placing it in a global context.

  4. Ecological classification - Wikipedia

    en.wikipedia.org/wiki/Ecological_classification

    Ecological classification or ecological typology is the classification of land or water into geographical units that represent variation in one or more ecological features. . Traditional approaches focus on geology, topography, biogeography, soils, vegetation, climate conditions, living species, habitats, water resources, and sometimes also anthropic factors.

  5. Association (ecology) - Wikipedia

    en.wikipedia.org/wiki/Association_(ecology)

    In phytosociology and community ecology an association is a type of ecological community with a predictable species composition and consistent physiognomy (structural appearance) which occurs in a particular habitat type.

  6. List of ecoregions in the United States (EPA) - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in_the...

    The classification system has four levels, but only Levels I and III are on this list. Level I divides North America into 15 broad ecoregions; of these, 12 lie partly or wholly within the United States. Fifty Level II regions were created to allow for a narrower delineation of Level I areas. Three level I areas were not subdivided for level 2. [2]

  7. Allee effect - Wikipedia

    en.wikipedia.org/wiki/Allee_effect

    The term "Allee principle" was introduced in the 1950s, a time when the field of ecology was heavily focused on the role of competition among and within species. [ 1 ] [ 3 ] The classical view of population dynamics stated that due to competition for resources, a population will experience a reduced overall growth rate at higher density and ...

  8. Biogeographic realm - Wikipedia

    en.wikipedia.org/wiki/Biogeographic_realm

    Beginning in the 1960s, it was used originally in the field of biostratigraphy to denote intervals of geological strata with fossil content demonstrating a specific ecology. [3] In Canadian literature, the term was used by Wiken [ 4 ] in macro-level land classification , with geographic criteria (see Ecozones of Canada ).

  9. Consumer–resource interactions - Wikipedia

    en.wikipedia.org/wiki/Consumer–resource...

    Consumer–resource interactions are the core motif of ecological food chains or food webs, [1] and are an umbrella term for a variety of more specialized types of biological species interactions including prey-predator (see predation), host-parasite (see parasitism), plant-herbivore and victim-exploiter systems.