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This activity is based on a published news article titled, "Search for the Missing Sea Otters" which details the collapse of an Alaskan ecosystem. Students should have prior knowledge of food chains, food webs, and keystone species to successfully complete the activity.
As students read the news article, they identify predator-prey relationships within the ecosystem and analyze population trends as well as the root cause of the ecosystem collapse.
Activity Package Includes:
- Teacher Guide
- Activity Outline
- Published Article
- Audio version of published article
- Pictures for food web creation
- Feeding relationship guide
- Analysis questions
- Answer key to feeding relationship guide and analysis questions
Google Docs links provided for all documents if Google users want to make a copy.
Keywords: food chain, food web, ecosystem, keystone species, producer, consumer, primary consumer, secondary consumer, tertiary consumer, autotroph, heterotroph, scientific method, independent variable, manipulated variable, dependent variable, responding variable, control, experimental