By analogy a keystone species supports a par1cular

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Unformatted text preview: lec1on What is causing these cycles in popula1on size in rabbits and lynxes? prey popula=on growth Kelp Forests in the north- west Pacific food chain or trophic chain Sea oAer feeds on feeds on Giant kelp Sea urchin Kelp Forests in the north- west Pacific Sea oAer trophic cascade feeds on feeds on Giant kelp Sea urchin Kelp Forests in the north- west Pacific Sea oAer A keystone holds the arch up. By analogy, a keystone species supports a par1cular ecosystem structure, such as presence of kelp forests by sea oAers. keystone species Trophic Cascades can ripple through en1re ecosystems Food web Food web If foxes are hunted so that their popula1ons...
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