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HABITAT LEARNING LAB:

Upper Grades Ecosystem Investigation: Frog and Toad Habitat


Southern Leopard Frogs
Max Pixel
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Investigate Frogs and Toads
and Their Habitat

Your frog bog and pond provide the habitat that frogs and toads need for food, water, shelter, and a place to raise their young.

Click on the topics below to learn more!
Butterfly link to Alabama's Pollinators
Alabama's Frogs & Toads Life Cycle Habitat Needs Interesting Facts


Alabama's Frogs and Toads
Frogs, toads, and salamanders make up the class “amphibia”. Amphibians with no tails are called “anurans” – this includes frogs and toads.
Alabama is home to 30 species of anurans – 4 toads and 26 frogs.
All toads are frogs, but not all frogs are toads!

There are three easy-to-spot differences between frogs and toads:

  1. Frogs have smooth, moist skin and toads have bumpy or warty, dry skin.
  2. Frogs have longer back legs than toads.
  3. Because of the difference in leg length, frogs leap long distances while toads hop short distances.
  4. Frogs lay their eggs in clusters while toads lay their eggs in chains.
  5. Frogs have teeth in the upper jaw while toads to not have teeth.
  6. Frogs typically live in wetter environments while toads typically live in drier environments.
Frogs can be divided into different groups based on their traits or characteristics. This is called classification. For example, tree frogs have bulging eyes and round discs at the tips of their toes that they use for climbing. “True frogs” like bullfrogs are relatively large, have webbed feet for swimming, and often have raised ridges running along their backs. Toads are characterized by their warty skin and shorter hind legs.
Differences between Frogs & Toads Photos
To see a full list of the frogs and toads found in Alabama, CLICK HERE!

You can also click on the links below to learn about a few common frogs and toads that you may find in your outdoor classroom:

American Bullfrog Bronze Frog Cope's Gray Tree Frog Fowler's Toad Southern Toad


Life Cycle
Frogs and toads both live part of their life in water and part on land. Baby frogs do not look like adult frogs. They undergo metamorphosis (a physical change) as they grow.
Step 1: They begin life as eggs in water.
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Step 2:

They hatch from the eggs and spend time as an aquatic tadpole. They look more like a fish than a frog at this point. They have no legs and a tail, their mouthparts are for eating algae, and they have gills instead of lungs.
Step 3:

The tadpole begins changing – legs grow, mouthparts shift, tail shrinks, and finally gills become lungs.
Step 4: The tadpole moves onto land with all four legs and lungs and eats bugs. At first, it will still have a short tail. At this point it is called a froglet.
Step 5: The tail is fully absorbed and it is now an adult frog that will reproduce and lay eggs to start the process all over again.


Habitat Needs
The pond and bog in your Frog and Toad Habitat provide food, water, and shelter for frogs and toads as well as their tadpoles.
Food:

Frogs and toads begin life as herbivorous, aquatic tadpoles that feed on vegetation in the pond. As they go through metamorphosis their mouthparts change and they become carnivorous, terrestrial adults. The water in and vegetation around your pond will provide food directly for the frogs and toads as herbivorous tadpoles, as well as carnivorous adults by attracting insects and insect larva.

Wood Frog Tadpole

Wood Frog (Lithobates sylvaticus)
Sally Ray, Pennsylvania Natural Heritage Program
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Water:

Frogs and toads require water for reproduction, their aquatic larval stage, and for keeping their skin moist and hydrated as adults. The pond will provide the water needed for frogs and toads throughout their whole lives. The aquatic plants inside of and around the pond will filter and aerate the water.

Shelter:

The marginal aquatic plants in the pond, the rocks lining the pond, the bog plants, and the moist soil in the bog will provide shelter for the frogs and toads.

Place to Raise Young:

Frogs and toads will lay their eggs in your pond. They do not protect or stay with the eggs once they are laid, and tadpoles hatch from the eggs ready to start life on their own.


Interesting Facts
#1:

Frogs and toads have unique, specialized feet for their specific habitats. Tree frogs have toe pads that help them stick to surfaces while they are climbing. Species of frogs, like bullfrogs, that live in water have webbed hind feet to help them swim. Spadefoots, a type of frog that burrows into soil and lives there most of the year, have hard spots called “spades” on their hind feet that help them dig.
https://www.alabamawildlife.org/uploadedFiles/Image/image-20201005170357-1.jpeg
Cope's Gray Tree Frog Toe Pads
Tyler Burgener
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#2:
Frogs absorb water and even breathe through their skin. This is why it’s important that you don’t hold them in your hands for a long time (they’ll dry out) or hold them if you have chemicals on your hands like bug spray or lotion. This is also why their presence or absence is great at telling us when a wetland is polluted – they can not survive in a habitat that is polluted.
https://www.alabamawildlife.org/uploadedFiles/Image/image-20201005170357-1.jpeg
Red Hills Salamander
Flickr – Seánín Óg
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#3:
Alabama has the third highest number of amphibian
(frogs, toads & salamanders) and reptile (snakes, turtles, lizards, and alligators) species out of all 50 states in the U.S. This means we have more reptile and amphibian diversity than all but two other states.
#4: Our “State Amphibian” is the Red Hills Salamander.


Sources