Food chains, also called food webs, food networks and/or trophic networks, describe the feeding relationships between species to another within an ecosystem. Organisms are connected to the organisms they consume by arrows representing the direction of biomass transfer. Typically a food chain or food web refers to a graph where only connections are recorded, and a food network or ecosystem network refers to a network where the connections are given weights representing the quantity of nutrients or energy being transferred.

Sea ice is now covering 40% less area that it did 26 years ago off the west Antarctic peninsula. This decrease has led to reduced numbers of krill, the main source of food for chinstrap penguins.

a look at the kind and amount of food you need for 60 days of antarctic skiing unsupported - maxime chaya

The Leopard Seal (Hydrurga leptonyx) is a seal belonging to the family Phocidae. It is the only species in its genus. Leopard Seals are the second largest species of seal in the Antarctic (after Southern Elephant Seals), and are near the top of the Antarctic food chain. During the summer months, they hunt among the pack ice surrounding the continen

How is it like being on top of the Antarctic food chain

About effects of warming seen near Antarctic.Researchers at Ohio State University say that higher temperatures have already forced penguin populations to migrate south and may have reduced the availability of krill that serve as the based of the Antarctic food chain.