enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Marine food web - Wikipedia

    en.wikipedia.org/wiki/Marine_food_web

    In the case of marine ecosystems, the trophic level of most fish and other marine consumers takes value between 2.0 and 5.0. The upper value, 5.0, is unusual, even for large fish, [7] though it occurs in apex predators of marine mammals, such as polar bears and killer whales. [8]

  3. Marine ecosystem - Wikipedia

    en.wikipedia.org/wiki/Marine_ecosystem

    Actual salinity varies among different marine ecosystems. [4] Marine ecosystems can be divided into many zones depending upon water depth and shoreline features. The oceanic zone is the vast open part of the ocean where animals such as whales, sharks, and tuna live. The benthic zone consists of substrates below water where many invertebrates live.

  4. Trophic level - Wikipedia

    en.wikipedia.org/wiki/Trophic_level

    A large carnivore may eat both smaller carnivores and herbivores; the bobcat eats rabbits, but the mountain lion eats both bobcats and rabbits. Animals can also eat each other; the bullfrog eats crayfish and crayfish eat young bullfrogs. The feeding habits of a juvenile animal, and, as a consequence, its trophic level, can change as it grows up.

  5. Consumer (food chain) - Wikipedia

    en.wikipedia.org/wiki/Consumer_(food_chain)

    A balance in these transfers is vital to the health and stability of an ecosystem. [4] Consumers balance the food chain in an ecosystem by keeping plant populations at a reasonable number. Without proper balance, an ecosystem can collapse and cause the decline of all affected species.

  6. Food web - Wikipedia

    en.wikipedia.org/wiki/Food_web

    [66] [67] "This leads to anomalies, such as food web calculations determining that an ecosystem can support one half of a top carnivore, without specifying which end." [68] Nonetheless, real differences in structure and function have been identified when comparing different kinds of ecological food webs, such as terrestrial vs. aquatic food ...

  7. Deep-sea community - Wikipedia

    en.wikipedia.org/wiki/Deep-sea_community

    Pelagic zones. The ocean can be conceptualized as being divided into various zones, depending on depth, and presence or absence of sunlight.Nearly all life forms in the ocean depend on the photosynthetic activities of phytoplankton and other marine plants to convert carbon dioxide into organic carbon, which is the basic building block of organic matter.

  8. Omnivore - Wikipedia

    en.wikipedia.org/wiki/Omnivore

    An omnivore (/ ˈ ɒ m n ɪ v ɔːr /) is an animal that regularly consumes significant quantities of both plant and animal matter. [ 3 ] [ 4 ] Obtaining energy and nutrients from plant and animal matter, omnivores digest carbohydrates , protein , fat , and fiber , and metabolize the nutrients and energy of the sources absorbed. [ 5 ]

  9. Zooplankton - Wikipedia

    en.wikipedia.org/wiki/Zooplankton

    Grazing is a central, rate-setting process in ocean ecosystems and a driver of marine biogeochemical cycling. [75] In all ocean ecosystems, grazing by heterotrophic protists constitutes the single largest loss factor of marine primary production and alters particle size distributions. [76]