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  2. Abiotic component - Wikipedia

    en.wikipedia.org/wiki/Abiotic_component

    Abiotic components include physical conditions and non-living resources that affect living organisms in terms of growth, maintenance, and reproduction. Resources are distinguished as substances or objects in the environment required by one organism and consumed or otherwise made unavailable for use by other organisms.

  3. Abiogenesis - Wikipedia

    en.wikipedia.org/wiki/Abiogenesis

    [64] [65] The Hadean atmosphere has been characterized as a "gigantic, productive outdoor chemical laboratory," similar to volcanic gases today which still support some abiotic chemistry. Despite the likely increased volcanism from early plate tectonics, the Earth may have been a predominantly water world between 4.4 and 4.3 Gya.

  4. Ecosystem - Wikipedia

    en.wikipedia.org/wiki/Ecosystem

    Ecosystem classifications are specific kinds of ecological classifications that consider all four elements of the definition of ecosystems: a biotic component, an abiotic complex, the interactions between and within them, and the physical space they occupy. Biotic factors of the ecosystem are living things; such as plants, animals, and bacteria ...

  5. Environmental factor - Wikipedia

    en.wikipedia.org/wiki/Environmental_factor

    Abiotic factors include ambient temperature, amount of sunlight, air, soil, water and pH of the water soil in which an organism lives. Biotic factors would include the availability of food organisms and the presence of biological specificity , competitors , predators , and parasites .

  6. Ecosystem ecology - Wikipedia

    en.wikipedia.org/wiki/Ecosystem_ecology

    Ecosystem ecology is philosophically and historically rooted in terrestrial ecology. The ecosystem concept has evolved rapidly during the last 100 years with important ideas developed by Frederic Clements, a botanist who argued for specific definitions of ecosystems and that physiological processes were responsible for their development and persistence. [2]

  7. Environmental gradient - Wikipedia

    en.wikipedia.org/wiki/Environmental_gradient

    The abiotic factors that environmental gradients consist of can have a direct ramifications on organismal survival. Generally, organismal distribution is tied to those abiotic factors, but even an environmental gradient of one abiotic factor yields insight into how a species distribution might look.

  8. Glossary of ecology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_ecology

    Natural biotic and abiotic resources combined. natural science natural selection nature negative feedback loop A process in which the effects of a change in a system act to reduce or counteract the change. Negative feedback loops tend to promote stability and a settling to equilibrium, reducing the effects of perturbations in the system.

  9. Biotic - Wikipedia

    en.wikipedia.org/wiki/Biotic

    Abiotic; Antibiotics are agents that either kill bacteria or inhibit their growth; Prebiotics are non-digestible food ingredients that stimulate the growth or activity of bacteria in the digestive system; Probiotics consist of a live culture of bacteria that inhibit or interfere with colonization by microbial pathogens