This workshop is designed to help students investigate and identify energy interactions in an ecosystem, and predict how species extinction may alter the food chain and affect existing populations.

*Teacher lesson plan can be found at the bottom of this page*

**Links work best when signed into a Google Account. Student worksheets are forced copied so students can work directly on the respective Google Documents**

This video discusses the Chihuahuan Desert Food Web including the different trophic levels. It also highlights a case study of the decline in grassland birds and the importance of the Chihuahuan Desert in conserving them.

After completing this workshop, you should have a better understanding of desert food webs and different interactions and flow of energy among trophic levels. You should also recognize the importance of how modifications to the food web can have direct and indirect effects on the existing populations in the ecosystem.