Crash Course Ecology


  • The History of Life on Earth | Crash Course Ecology

    Life is powerful, and in order to understand how living systems work, you first have to understand how they originated, developed and diversified over the past 4.5 billion years of Earth's history. Hang on to your hats as Hank tells us the epic drama that is the history of life on Earth.

    Grades: 9-12
  • Population Ecology: The Texas Mosquito Mystery | Crash Course Ecology

    Population ecology is the study of groups within a species that interact mostly with each other. It examines how these animals live together in one geographic area to understand why these populations are different in one time and place than they are in another. Hank uses the example a of West Nile virus outbreak in Texas to show you in this episode of Crash Course: Ecology.

    Grades: 9-12
  • Human Population Growth | Crash Course Ecology

    Hank is here to tell us the specifics of why and how human population growth has happened over the past hundred and fifty years or so, and how those specifics relate to ecology.

    Grades: 9-13+
  • Community Ecology I: Feel the Love | Crash Course Ecology

    Interactions between species are what define ecological communities, and community ecology studies these interactions anywhere they take place. Although interspecies interactions are mostly competitive, competition is pretty dangerous, so a lot of interactions are actually about side-stepping direct competition and instead finding ways to divvy up resources to let species get along.

    Grades: 9-12
  • Community Ecology II: Predators | Crash Course Ecology

    Hank gets to the more aggressive part of community ecology by describing predation and the many ways prey organisms have developed to avoid it.

    Grades: 9-12
  • Ecological Succession: Change is Good | Crash Course Ecology

    In the world of ecology, the only constant is change - but change can be good. Today Hank explains ecological succession and how ecological communities change over time to become beautiful, biodiverse mosaics.

    Grades: 9-13+
  • Ecosystem Ecology: Links in the Chain | Crash Course Ecology

    Hank brings us to the next level of ecological study with ecosystem ecology, which looks at how energy, nutrients, and materials are getting shuffled around within an ecosystem (a collection of living and nonliving things interacting in a specific place). It basically comes down to who is eating who.

    Grades: 9-12
  • The Hydrologic and Carbon Cycles: Always Recycle! | Crash Course Ecology

    Hank introduces us to biogeochemical cycles by describing his two favorites: carbon and water. The hydrologic cycle describes how water moves on, above, and below the surface of the Earth, driven by energy supplied by the sun and wind. The carbon cycle does the same... for carbon!

    Grades: 9-12
  • Nitrogen & Phosphorus Cycles: Always Recycle! Part 2 | Crash Course Ecology

    Hank describes the desperate need many organisms have for nutrients (specifically nitrogen and phosphorus) and how they go about getting them via the nitrogen and phosphorus cycles.

    Grades: 9-12
  • 5 Human Impacts on the Environment | Crash Course Ecology

    Hank gives the run down on the top five ways humans are negatively impacting the environment and having detrimental effects on the valuable ecosystem services which a healthy biosphere provides.

    Grades: 9-12
  • Pollution | Crash Course Ecology

    Hank talks about the last major way humans are impacting the environment: pollution. Pollution takes many forms - from the simplest piece of litter to the more complex endocrine distruptors - and ultimately, humans are responsible for it all.

    Grades: 9-13+
  • Conservation and Restoration Ecology | Crash Course Ecology

    Hank wraps up by taking a look at the growing fields of conservation biology and restoration ecology: protecting ecosystems and to cleaning up the messes that we've already made.

    Grades: 9-13+

Brand:
Contributor: