Tag «food web»

What Will Round Gobies Do to Great Lakes Streams?

What Will Round Gobies Do to Great Lakes Streams?

NARR: The round goby is dramatically changing things in the Great Lakes. It invaded the lakes about twenty years ago. Now it’s disrupting the food web that supports the lakes’ bass, walleye, yellow perch and other sport fish. The consequences could be severe. But the round goby is also working its way up the streams …

Ecosystem Ecology

Ecosystem Ecology

Hi. It’s Mr. Andersen and this is environmental science video 7. It is on ecosystem ecology. Ecosystems are large areas on our planet that contain both living and nonliving material. A great example could be these giant kelp forests. The kelp are producers. So they are taking energy from the sun and converting that into …

Ecosystems

Ecosystems

Hi. It’s Mr. Andersen and welcome to biology essentials video number 47. This is on ecosystems. And we happen to live next to one of the most famous ecosystems on the plant. That’s the greater Yellowstone ecosystem. So we live right here in Bozeman, which is about 60 miles north as the crow flies from …

Home Sweet Habitat: Crash Course Kids #21.1

picture of polar bear in the desert know what you’re imagining is way too cute take off the sunglasses and the swim trunks there he’s hot he’s hungry he’s downright miserable why is he such a grumpy bear well it’s because he’s not where he belongs there aren’t any tasty seals to eat no cold …

The Secret Life of Plankton

The Secret Life of Plankton

[Stories from the Sea] [Fish Tale My Secret Life as Plankton] How did I get here? Well, it’s a stranger story than you might think. I came from a world of drifters, a place few humans have ever seen. The world of plankton. I came from a batch of a million eggs, and only a …

What’s the Big Idea? —Using Citizen Science to Help Track Aquatic Food Webs of the Grand Canyon

What’s the Big Idea? —Using Citizen Science to Help Track Aquatic Food Webs of the Grand Canyon

Hi, my name is Ted Kennedy. I am a research ecologist with the Grand Canyon Monitoring Research Center in Flagstaff, Arizona. So my group did some synoptic food web studies from 2006 to 2009. Where we described food webs throughout Grand Canyon…looking at algae, and detritus, and the invertebrates that eat those materials and then …