1. This graph comes from a study on the effects of European green crabs on the food web in Bodega Bay Harbor, California. 1960 Response: Crabs (no./trap) 0 1991 1992 1993 7661 1995 1996 1997 1998 ● 250 200 +60 S 00+ Clams (no./core) European Green Crabs (no./50m²) O European Green Crabs Clams

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Communities and Ecosystems

Ecology contains two words: Eikos means dwelling, and logy means to study, so the combined meaning is studying habitat or living.