In the elementary science class I teach one afternoon a week, we have been studying about caves. We are spending several weeks on this topic. Much of Kentucky lies on top of a large Karst system and has many caves including the largest mapped cave system in the world-Mammoth Cave. Pollution can be a major problem in caves because of their delicate ecosystems.
One thing that we have learned through our studies is the importance of bats to the cave food chain. On the bottom of any food chain is the sun which plants use to create their own food. From their other things eat food until you get to the top of the food chain. An example of a food chain is plants produce food from the sun; insects eat plants; bats eat insects. The problem in the cave is their is no sunshine so no plants grow deep inside. Bats transfer the outside energy to the cave. They come into the cave and excrete bat guano (poop). Cave crickets eat the bits of food left in the guano and then something else eats the cave crickets. This is mainly how the delicate creatures which only live inside the cave get their food. That is why bats are so important to the cave food chain. A side benefit to humans is the massive amounts of insects that bats eat each evening.
Two things I have been trying to pass on to my students is the importance of taking care of our cave systems. This means be careful not to do things which will pollute ground water or hurt bats. It is a lesson for which we should all pay attention.
One thing that we have learned through our studies is the importance of bats to the cave food chain. On the bottom of any food chain is the sun which plants use to create their own food. From their other things eat food until you get to the top of the food chain. An example of a food chain is plants produce food from the sun; insects eat plants; bats eat insects. The problem in the cave is their is no sunshine so no plants grow deep inside. Bats transfer the outside energy to the cave. They come into the cave and excrete bat guano (poop). Cave crickets eat the bits of food left in the guano and then something else eats the cave crickets. This is mainly how the delicate creatures which only live inside the cave get their food. That is why bats are so important to the cave food chain. A side benefit to humans is the massive amounts of insects that bats eat each evening.
Two things I have been trying to pass on to my students is the importance of taking care of our cave systems. This means be careful not to do things which will pollute ground water or hurt bats. It is a lesson for which we should all pay attention.