HHMI's Holiday Lectures on Science

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Episodes

Date Title & Description Contributors
2017-06-15

  2016 Ecology Lecture 1

"Trophic Cascades in Rivers" by Mary E. Power, PhDThe ecosystem of a river depends on complex interactions between primary producers, grazers, and predators, which in turn are determined both by the traits of the individual species involved and the phy...
  HHMI/Mary E. Power, PhD author
2017-06-15

  2016 Ecology Lecture 2

"Untangling Salt Marsh Food Webs" by Brian R. Silliman, PhDCoastal wetlands are dominated by a variety of plants adapted to a stressful environment. In the absence of a significant number of herbivores, the growth of these plants was thought to be limi...
  HHMI/Brian R. Silliman, PhD author
2017-06-15

  2016 Ecology Lecture 3

"Floods, Droughts, and Food Chains" by Mary E. Power, PhDMany rivers of the world have vast seasonal changes in flow rates. Dr. Mary Power leads us in an exploration of Northern California’s Eel River and how the community of herbivores and predators i...
  HHMI/Mary E. Power, PhD author
2017-06-15

  2016 Ecology Lecture 4

"Climate Stress and Coastal Food Webs" by Brian R. Silliman, PhDMany rivers of the world have vast seasonal changes in flow rates. Dr. Mary Power leads us in an exploration of Northern California’s Eel River and how the community of herbivores and pred...
  HHMI/Brian R. Silliman, PhD author
2017-06-15

  2016 Ecology Discussion

"Ecology, Food Webs, and the Chesapeake Bay" with Sean Carroll, PhD, Beth McGee, PhD, Mary E. Power, PhD, and Brian R. Silliman, PhDA discussion of the Chesapeake Bay Watershed, its complex food web, and the challenges of conserving and restoring the b...
  Howard Hughes Medical Institute author
2016-03-10

  2015 Ecology Lecture 1

"Africa's Savanna Ecosystems" by Robert M. Pringle, PhDSavannas 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.
  HHMI/Robert M. Pringle, PhD author
2016-03-10

  2015 Ecology Lecture 2

"Patterns in Nature" by Corina E. Tarnita, PhDRegular spatial patterns abound in natural systems. Understanding how patterns arise in ecosystems provides insights into how these ecosystems function.
  HHMI/Corina E. Tarnita, PhD author
2016-03-10

  2015 Ecology Lecture 3

"How Species Coexist" by Robert M. Pringle, PhDLarge herbivores in the African savanna coexist by partitioning ecological niches by time, space, and diet.
  HHMI/Robert M. Pringle, PhD author
2016-03-10

  2015 Ecology Lecture 4

"Modeling Populations and Species Interactions" by Corina E. Tarnita, PhDGorongosa National Park in Mozambique provides several examples for how to model the growth of animal populations and then check the models against actual data.
  HHMI/Corina E. Tarnita, PhD author
2016-03-10

  2015 Ecology Lecture 5

"Communities as Ecological Networks" by Robert M. Pringle, PhD and Corina E. Tarnita, PhDEcosystems include complex interactions between animals and plants, which can be measured experimentally and investigated using mathematical models.
  HHMI/Robert M. Pringle, PhD and Corina E. Tarnita, PhD author