Unit 1: Ecosystem Interactions and Population Dynamics

Bees are important for agriculture. But bee populations face threats. This resource looks at Colony Collapse Disorder, herbicides & pesticides, and more.

When fertilizers from agriculture get into lakes and rivers, big problems can result for aquatic ecosystems, food chains & webs!

Beavers are a Canadian symbol. But in South America, they’re considered an invasive species.

Wind power is a growing source of electricity generation. But wind projects often affect local wildlife populations, and researchers are using environmental monitoring techniques to alleviate some of these impacts.