bioindicator, snails, inventory and monitoring, all taxa biodiversity inventory, Great Smoky Mountains National Park, calcium, acid deposition
In this lesson students will better understand how snails are an important part of the soil’s food chain and why scientists are concerned about their population due to the links between calcium availability in soil and acid deposition. This unit is broken into three parts including a trip to the park, a preparation activity and a wrap-up activity.
1) understand the biodiversity of the Great Smoky Mountains National Park
2) recognize that many snails here are endemic species, meaning they are known to live only in the park
3) recognize that snails only live in certain geologic areas
4) describe physical characteristics that make one snail shell different from another
5) learn the definitions associated with snails
6) explain why land snails are important to an ecosystem