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Ecosystems in Action: Population & Community Dynamics

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6-8, 9-12 Hudson River Ecology

How do populations change in the Hudson River ecosystem, and how do these changes affect the larger ecological community? Using video, data, and hands-on investigations, students will explore how food webs and the abiotic resources and conditions of the ecosystem have changed in response to the zebra mussel invasion. This case study allows students to understand community level changes, which they can then apply to other systems.  

  • Grades: 6-8, 9-12

    Students will know what lives in the Hudson River, and will be able to create a food web drawing to represent the organisms living in the river. They will also know that the Hudson River food web is changing in response to the zebra mussel invasion, and will be able to make predictions about how native organisms will be affected by this invasion.  

  • Grades: 6-8, 9-12

    Students will know how the zebra mussel invasion affected the food web of the Hudson River and be able to explain at least two connections within the food web that were affected using evidence from provided graphs.

  • Grades: 6-8, 9-12

    Students will know how the zebra mussel has changed the Hudson River ecosystem and be able to explain how a biotic change affects the abiotic conditions in the Hudson River.

  • Grades: 6-8, 9-12

    Students will know how the zebra mussel invasion has changed the Hudson River and be able to use graphed data to explain the history of these changes.