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Showing 1-20 of 31 Resources
  • Ecology, Food Webs, and the Chesapeake Bay

    Ecology, Food Webs, and the Chesapeake Bay

    Lecture

    (49 min 3 sec) A discussion of the Chesapeake Bay Watershed, its complex food web, and the challenges of conserving and restoring the bay.

  • Climate Stress and Coastal Food Webs

    Climate Stress and Coastal Food Webs

    Lecture

    (43 min 18 sec) We are in the midst of a major die-off of coastal wetlands – what is to blame?

  • Floods, Droughts, and Food Chains

    Floods, Droughts, and Food Chains

    Lecture

    (44 min 27 sec) How a river's community of herbivores and predators is affected by changes in river flow.

  • Untangling Salt Marsh Food Webs

    Untangling Salt Marsh Food Webs

    Lecture

    (45 min 16 sec) The revelation that salt marshes are controlled by top-down forces of herbivores and other consumers.

  • Trophic Cascades in Rivers

    Trophic Cascades in Rivers

    Lecture

    (44 min 27 sec) How fishes in a river ecosystem play a critical role in forming the aquascape.

  • Ecology of Rivers and Coasts—Food Webs and Human Impacts

    Ecology of Rivers and Coasts—Food Webs and Human Impacts

    Lecture

    Two leading ecologists describe the complex interactions between species and their environment in aquatic ecosystems. 

  • Student Discussion on Patterns and Processes in Ecology

    Student Discussion on Patterns and Processes in Ecology

    Lecture

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

  • The Science of Camera Traps

    The Science of Camera Traps

    Lecture

    (23 min 44 sec) A discussion of camera traps and their use in ecological research.

  • Conserving and Restoring Ecosystems

    Conserving and Restoring Ecosystems

    Lecture

    (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

    Lecture

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

  • Modeling Populations and Species Interactions

    Modeling Populations and Species Interactions

    Lecture

    (30 min 38 sec) Gorongosa National Park in Mozambique provides several examples for how to model the growth of animal populations and then check the models against actual data. 

  • How Species Coexist

    How Species Coexist

    Lecture

    (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

    Lecture

    (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

    Lecture

    (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

    Lecture

    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.

  • Saving Biodiversity Discussion

    Saving Biodiversity Discussion

    Lecture

    (57 min 28 sec) A sixty-minute discussion on biodiversity.

  • Dodging Extinction

    Dodging Extinction

    Lecture

    (31 min 12 sec) What steps can be taken to avoid the sixth mass extinction?

  • Ocean Species Respond to Climate Change

    Ocean Species Respond to Climate Change

    Lecture

    (29 min 39 sec) Coral reefs, how they are threatened by climate change, and how to protect them.

  • Extreme Life of the Sea

    Extreme Life of the Sea

    Lecture

    (29 min 27 sec) The threat to biodiversity in the ocean differs from the threats on the land.

  • Rescuing Species

    Rescuing Species

    Lecture

    (29 min 1 sec) How to preserve genetic diversity that is threatened by habitat loss.

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