Building a Florida Food Web
As you have learned, a food web is a more accurate depiction of how energy moves through a community of organisms. Food chains show only a single set of energy transfers, ignoring that many organisms obtain energy from many different sources, and in turn may provide energy to many different organisms.
In this activity, you will be building a food web for our local Central Florida ecosystem. You have been provided with images of a number of organisms that are native to the area.
1. Cut out the animal icons from the paper provided.
2. You must use ALL of the icons – no fair making some members of the community disappear. The icons are not drawn to scale!
3. On the poster board provided, organize the icons. Establish as many energy-transfer relationships as possible. If you are not certain if an organism might be someone else’s food source, feel free to use your book and/or the Internet for research.
4. Once organized, glue the animals onto the poster board.
5. Using a straight edge (ruler), draw lines showing the energy transfer relationships on your board. Remember: The arrowhead should point AT the organism that is CONSUMING the other organism.
6. Along each line connecting two organisms, identify the relationship that exists between the two:
When you submit your poster board, be certain to have the names of ALL of the members of your group listed in the upper-right hand corner (Front) of the board.
FUN FROG FACTS
1. Some frogs can jump as much as 20 times their own length.
2. Some types of frogs have a round iris in their eyes, but some have horizontal slits, some have vertical slits, and some are even triangular or heart-shaped.
3. The smallest frog in the world is from Cuba, and is only 1/2" long. The largest frog in the world is from West Africa (Conraua goliath) and is about 12 inches long.
4. The red-eyed tree frog from Central America lays its eggs on leaves that are over the water. When the eggs hatch, the tadpoles fall into the water below.
5. Because frogs have eyes and nostrils that are on the tops of their heads, they can see and breathe while the rest of the body is under water. Adult frogs breathe with lungs, but also absorb oxygen through their skin.
6. Frogs have smooth skin, and long legs to help them leap. Toads have drier warty skin and short legs, and they move by crawling or hopping rather than by leaping. Technically, though, toads are just a type of frog.
7. There are over 4000 species of frogs in the world, though only 88 species in the US and Canada. They are all over the world, except for Antarctica and Iceland.
8. Some tree frogs live their whole lives in the trees, and never come down. They even lay their eggs in the tree branches or on leaves.
9. Some frogs lay as many as 25,000 eggs while others may lay as few as 4.
10. Tadpoles breathe through gills while adult frogs breath through crude lungs and also absorb oxygen through their skin.
11. People who study frogs and toads are called herpetologists. Herpetology is the study of amphibians and reptiles.
12. Frogs don't drink water but absorb it through their skin. 13. Most frogs can change their color somewhat to match their surroundings.
CULTURAL FROG BELIEFS……
14. In Japan frogs are symbols of good fortune.
15. Native American and Australian aborigines believed frogs brought rain.
16. In India frogs personified thunder.
17. In China it wasn't the Man in the Moon but the Frog in the Moon. In a lunar eclipse the frog swallowed the moon!
18. In ancient Egypt, frogs were symbols of resurrection and were even mummified with the dead.
19. The golden poison arrow frog of Columbia has a skin secretion that is so deadly it can not be handled by bare hands. Native Americans used the poison to coat their hunting arrows. Just 0.2 micrograms of his poison in your bloodstream would kill you.