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  2. Food web - Wikipedia

    en.wikipedia.org/wiki/Food_web

    Within these categories, food webs can be further organized according to the different kinds of ecosystems being investigated. For example, human food webs, agricultural food webs, detrital food webs, marine food webs, aquatic food webs, soil food webs, Arctic (or polar) food webs, terrestrial food webs, and microbial food webs. These ...

  3. Soil food web - Wikipedia

    en.wikipedia.org/wiki/Soil_food_web

    An example of a topological food web (image courtesy of USDA) [1]. The soil food web is the community of organisms living all or part of their lives in the soil. It describes a complex living system in the soil and how it interacts with the environment, plants, and animals.

  4. High-nutrient, low-chlorophyll regions - Wikipedia

    en.wikipedia.org/wiki/High-nutrient,_low...

    Some diatoms, such as pseudo-nitzschia, release the neurotoxin domoic acid, poisoning grazing fish. [48] If diatoms grow preferentially during iron fertilization experiments, sustained fertilizations could enhance domoic acid poisoning in the marine food web near fertilized patches. [48] Global dust deposition from wind.

  5. Ecology of the San Francisco Estuary - Wikipedia

    en.wikipedia.org/wiki/Ecology_of_the_San...

    Detrital production from clam excretion and death may fuel bacterial production, which may be circulated into the detrital food web, or microbial loop. While the recycled nutrients may support some phytoplankton growth, it ultimately feeds back to increased C. amurensis populations.

  6. 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.

  7. Food chain - Wikipedia

    en.wikipedia.org/wiki/Food_chain

    Food chain in a Swedish lake. Osprey feed on northern pike, which in turn feed on perch which eat bleak which eat crustaceans.. A food chain is a linear network of links in a food web, often starting with an autotroph (such as grass or algae), also called a producer, and typically ending at an apex predator (such as grizzly bears or killer whales), detritivore (such as earthworms and woodlice ...

  8. Marine protists - Wikipedia

    en.wikipedia.org/wiki/Marine_protists

    [13] [14] Notwithstanding their significance for understanding the evolution of life on Earth and their role in marine food webs, as well as driving biogeochemical cycles to maintain habitability, little is known about their cell biology including reproduction, metabolism and signaling. [12]

  9. Lake ecosystem - Wikipedia

    en.wikipedia.org/wiki/Lake_ecosystem

    A detrital feeder in the profundal zone, for example, that finds the oxygen concentration has dropped too low may feed closer to the benthic zone. A fish might also alter its residence during different parts of its life history: hatching in a sediment nest, then moving to the weedy benthic zone to develop in a protected environment with food ...