Hudson River Ecology

How does the Hudson River ecosystem respond to different types of changes over time? Are these changes permanent, and how will the ecosystem respond? Our curriculum addresses these questions through modules which combine unique and engaging Hudson River data collected by the Cary Institute and other scientists, investigations, readings, and visualizations.

Ecosystems in Action: Cycling of Matter & Energy

Nutrients & Energy
Nature of Science

Ecosystems are defined as all the organisms along with all the components of the abiotic environment, interacting together as a system, within specific spatial boundaries.  The Hudson's ecosystem is connected by the streams, rainfall, runoff and seepage to the forest, atmosphere, and groundwater systems that are in its watershed and airshed.

  • Hudson River Food Webs

    Students will know how an invasive species has changed the Hudson River food web and be able to explain the impact of the zebra mussel on the food web over time.

  • Aquatic Ecosystem Exploration

    Students will know how an aquatic ecosystem works and be able to collect representative organisms, identify the organism and its trophic level, and create a food web of a local aquatic ecosystem.

  • Nitrogen in Ecosystems

    Students will know where nitrogen exists and in which forms, and will be able to draw a diagram showing the movement of nitrogen in ecosystems.

  • Eutrophication

    Students will know the difference between a pulse and a press event with regards to eutrophication and be able to graph the growth of algae over time.

  • Ecosystem Disturbance: Deforestation

    Students will know the effects of deforestation on an ecosystem and be able to use data to explain ways that deforestation impacts a stream. 

  • Inquiry Oxygen

    Students will know the factors that change dissolved oxygen levels and be able to design an experiment to test their ideas.

  • Temperature and Dissolved Oxygen

    Students will know how temperature affects dissolved oxygen and be able to create a graph showing this relationship.

  • Respiration

    Students will know that plants use oxygen underwater and be able to design an experiment that will test this question.

  • Water Chestnut & Dissolved Oxygen

    Students will know how a water chestnut bed impacts dissolved oxygen levels across space and through time and will be able to use graphs to explain these changes.

  • Introduction to Dissolved Oxygen

    Students will know how dissolved oxygen enters water and be able to explain at least two variables that affect the amount of dissolved oxygen in water.

Cary Institute of Ecosystem Studies | Millbrook, New York 12545 | Tel (845) 677-5343

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