Alpine Tundra Animals Food Web. At the top of the food web, the polar bear reigns.the only predator for the polar bear is man (not shown on this ecosystem chart).polar bears eat the arctic seal and the atlantic salmon and has no predator thus for making it the top of its food web.below is a list of who eats who:. Marmots are large squirrels that are found in the alpine tundra zones of mountain ranges in europe, asia, and north america.

For tundra plants and animals, survival is not just about battling the harsh environment of this biome, but is equally about being a part of its complex food web. Gulo, marten, grizzly bear, badger, red fox, coyote, and bobcat are at the top of the food chain. Plants include mosses, lichens and poor grasses.

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Because animals of the tundra are generally migratory, this biome's population is constantly changing. Because animals of the tundra are generally migratory, this biome's population is constantly changing. Plants are devoured by herbivores and carnivores eat the animals that have eaten the plants. Atop the food chain are tundra carnivores, such as arctic foxes (vulpes lagopus), arctic wolves (canis lupus), snowy owls (bubo scandiaca), and polar bears (ursus maritimus), which move into the tundra during the summer when prey is plentiful and their usual hunting grounds on sea ice diminish.