Tag Archives: biodiversity

Food Webs and Energy Pyramids: Bedrocks of Biodiversity

Captions are on! TO turn off, click the CC button at bottom right. Follow the amoebas on Twitter (@amoebasisters) and Facebook! When we were little, we loved nature shows. One reason was because we didn’t have cable and it was one of the few things we actually got a TV signal for that didn’t require… Read More »

Greg Asner: Ecology from the air

Technology can change our understanding of nature. Take for example the case of lions. For centuries, it’s been said that female lions do all of the hunting out in the open savanna, and male lions do nothing until it’s time for dinner. You’ve heard this too, I can tell. Well recently, I led an airborne… Read More »

Conservation and Restoration Ecology: Crash Course Ecology #12

For the past 12 weeks, we’ve been investigating our living planet together, and learning how it works on many levels; how populations of organisms interact, how communities thrive and ecosystems change, and how humans are wrecking the nice, perfectly functioning systems Earth has been using for hundreds of thousands of years. And now it’s graduation… Read More »

Ecology – Rules for Living on Earth: Crash Course Biology #40

For the last 38 episodes of Crash Course Biology, we’ve talked about how to make an organism. And you know what I’ve learned in those 38 weeks? Putting a living thing together is hard! There are molecules that make up organelles that run cells, which come together to form tissues, which make up organs that… Read More »

Untapped Capacity: Our 4,000 Species of Native Bees

[ Background Conversations ] [ Silence ] [ Background Conversations ] Well, hello. Welcome to the U.S. Geological Survey in another installment of our monthly public lecture series. It’s delighted – delightful to see such a full house today. I saw a preview of the lecture this morning – or, this afternoon at lunch, and… Read More »