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  • Niche Partitioning

    Niche Partitioning

    Clips

    (4 min 13 sec) Dr. Rob Pringle introduces the concept of niche partitioning with examples drawn from the African savanna.

  • Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades

    Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades

    Short Films

    (19 min 29 sec) Keystone species and trophic cascades are fundamental concepts in ecology. This short film tells the story of how these concepts were first established through the pioneering experiments of two young researchers: Robert Paine and James Estes.

  • Building Ecological Pyramids

    Building Ecological Pyramids

    Lessons

    In this activity, students will build biomass pyramids depicting trophic levels of various habitat types using data from trail cameras in Gorongosa National Park.

  • Student Discussion on Patterns and Processes in Ecology

    Student Discussion on Patterns and Processes in Ecology

    Science Talks

    (56 min 17 sec) The 2015 Holiday Lecture discussion session.

  • A Science-Based Approach to Restoring Gorongosa's Wildlife

    A Science-Based Approach to Restoring Gorongosa's Wildlife

    Scientists at Work

    (7 min 45 sec) Scientists from Gorongosa National Park relocate zebras from a nearby reserve as part of the effort to restore healthy wildlife populations.

  • Surveying Ant Diversity in Gorongosa National Park

    Surveying Ant Diversity in Gorongosa National Park

    Scientists at Work

    (7 min 46 sec) Conservation biologist Leeanne Alonso is surveying ant species Gorongosa National Park to monitor the health of the park’s ecosystems

  • Termite Activity Enhances Ecosystem Productivity and Stability

    Termite Activity Enhances Ecosystem Productivity and Stability

    Animations

    Termite activity increases soil moisture and nutrient accumulation, strengthening African savanna ecosystems.

  • Resistance to Coral Bleaching

    Resistance to Coral Bleaching

    Data Points

    To test whether corals can become more resistant to bleaching, Dr. Steve Palumbi and colleagues performed a series of experiments in the U.S. National Park of American Samoa off of Ofu Island. Worksheets also available in Spanish.

  • Niche Partitioning and Species Coexistence

    Niche Partitioning and Species Coexistence

    Scientists at Work

    (8 min 14 sec) Professor Robert Pringle describes the cutting-edge method of DNA metabarcoding used to reveal how similar animals share resources. Film and worksheet also available in Spanish.

  • Analyzing Patterns in the Savanna Landscape

    Analyzing Patterns in the Savanna Landscape

    Scientists at Work

    (7 min 57 sec) Mathematician-turned biologist Dr. Corina Tarnita describes the importance of termite mounds in a savanna ecosystem. Also available in Spanish.

  • Conserving and Restoring Ecosystems

    Conserving and Restoring Ecosystems

    Science Talks

    (25 min 21 sec) Two important questions in ecology are "How do we conserve ecosystems?" and  "When we try to restore damaged ecosystems, what state do we restore them to?"

  • Communities as Ecological Networks

    Communities as Ecological Networks

    Science Talks

    (41 min 18 sec) Ecosystems include complex interactions between animals and plants, which can be measured experimentally and investigated using mathematical models.

  • How Species Coexist

    How Species Coexist

    Science Talks

    (27 min 25 sec) Large herbivores in the African savanna coexist by partitioning ecological niches by time, space, and diet.

  • Patterns in Nature

    Patterns in Nature

    Science Talks

    (35 min 51 sec) Regular spatial patterns abound in natural systems. Understanding how patterns arise in ecosystems provides insights into how these ecosystems function.

  • Africa's Savanna Ecosystems

    Africa's Savanna Ecosystems

    Science Talks

    (24 min 56 sec) Savannas cover 20 percent of Earth’s surface and much of Africa. The patterns and processes that occur in this globally important biome illustrate core concepts in ecology.

  • Patterns and Processes in Ecology

    Patterns and Processes in Ecology

    Science Talks

    What controls the numbers and distributions of animals in their environment? How do animals interact with other species? How do natural patterns arise in nature? Find out in the 2015 Holiday Lectures on Science.

  • Modeling Ecosystem Effects of Termite Mound Patterns

    Modeling Ecosystem Effects of Termite Mound Patterns

    Data Points

    Dr. Corina Tarnita and colleagues studied how a pattern of termite mounds across a dryland ecosystem enhances resilience against desertification.

  • Creating Chains and Webs to Model Ecological Relationships

    Creating Chains and Webs to Model Ecological Relationships

    Card Activities

    Students use cards to build model food webs and evaluate how ecological disturbances affect each trophic level. Also available in Spanish.

  • Exploring Biomes in Gorongosa National Park

    Exploring Biomes in Gorongosa National Park

    Lessons

    Gorongosa National Park in Mozambique is a region with high ecological diversity that encompasses two distinct biomes. This activity introduces students to the concept of biomes in conjunction with the Gorongosa National Park interactive map click and learn

  • Liz Hadly Tracks the Impact of Climate Change in Yellowstone

    Liz Hadly Tracks the Impact of Climate Change in Yellowstone

    Scientists at Work

    (7 min 28 sec) Ecosystems in the world-famous national park are threatened by warming temperatures.

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