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  2. Food web - Wikipedia

    en.wikipedia.org/wiki/Food_web

    A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community. Ecologists can broadly define all life forms as either autotrophs or heterotrophs, based on their trophic levels, the position that they occupy in the food web.

  3. 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 ...

  4. Grassland - Wikipedia

    en.wikipedia.org/wiki/Grassland

    Grassland in all its form supports a vast variety of mammals, reptiles, birds, and insects. Typical large mammals include the blue wildebeest, American bison, giant anteater, and Przewalski's horse. The plants and animals that live in grasslands are connected through an unlimited web of interactions.

  5. Savanna - Wikipedia

    en.wikipedia.org/wiki/Savanna

    A grass savanna in South Africa ( Kruger National Park) A savanna or savannah is a mixed woodland - grassland (i.e. grassy woodland) biome and ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous ...

  6. Trophic level - Wikipedia

    en.wikipedia.org/wiki/Trophic_level

    The trophic level of an organism is the position it occupies in a food web. Within a food web, a food chain is a succession of organisms that eat other organisms and may, in turn, be eaten themselves. The trophic level of an organism is the number of steps it is from the start of the chain. A food web starts at trophic level 1 with primary ...

  7. Thomson's gazelle - Wikipedia

    en.wikipedia.org/wiki/Thomson's_gazelle

    Thomson's gazelle is a relatively small gazelle; it stands 60–70 cm (24–28 in) at the shoulder. Males weigh 20–35 kg (44–77 lb), while the slightly lighter females weigh 15–25 kg (33–55 lb). Facial characteristics of the gazelle include white rings around the eyes, black stripes running from a corner of the eye to the nose, rufous ...

  8. Soil food web - Wikipedia

    en.wikipedia.org/wiki/Soil_food_web

    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. Food webs describe the transfer of energy between species in an ecosystem. While a food chain examines one, linear, energy pathway through ...

  9. Buffalo Gap National Grassland - Wikipedia

    en.wikipedia.org/wiki/Buffalo_Gap_National_Grassland

    The National Grasslands Visitor Center in Wall, South Dakota is part of the Buffalo Gap National Grassland – Wall Ranger District. The center features exhibits about grassland wildlife and plants, grazing management and the history of the Great Plains. There is also a theater with a video about the grasslands, restrooms and a gift shop.

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