By LadyofHats (Own work) [CC0], via Wikimedia Commons https://commons.wikimedia.

Question

By LadyofHats (Own work) [CC0], via Wikimedia Commons https://commons.wikimedia.org/wiki/File%3AFood_web_diagram.svg

Consider the food web above depicting a terrestrial food web and a marine food web. In the Everglades, a freshwater marsh, terrestrial and aquatic environments are interconnected. The complexity of this unique ecosystem can be analyzed by constructing a food web to trace the flow of energy between organisms.

Part 1: Your task for this project is to construct an illustrated food web to diagram trophic interactions in the Everglades ecosystem. The food web must be an original creation, you cannot submit a food web that you find online! You must use a minimum of 8 species that are found in the Everglades. You must indicate, using arrows or lines, the flow of energy between the species in your diagram. Be sure to upload your food web as an attachment in the assignment dropbox. Your constructed food web is worth 60 points.

Click here for a resource that will allow you to identify plants and animals that are found in the Everglades.

Part 2: Answer the following questions about the food web you constructed. Answers should be provided on a separate attachment in the assignment dropbox. Answers to the 10 questions using correct spelling and grammar are worth a total of 40 points.

1) List the producer(s) in your food web.

2) List the herbivores in your food web.

3) Are there any organisms in your food web that are omnivores? On which trophic levels are they feeding?

4) List the carnivores in your food web.

5) Identify and list a food chain within your food web that depicts at least three trophic levels. What organism in your selected food chain is a secondary consumer?

6) Are there any nonnative species in your food web? Briefly describe are they altering this food web in the Everglades ecosystem?

7) Choose a primary consumer in your food web. If its population suddenly started to decline, what density-dependent (biotic) factors could be causing it?

8) Choose a secondary consumer in your food web. If its population suddenly started to increase, what density-dependent (biotic) factors could be causing it?

9) Are there any keystone species in your food web? If a keystone species were removed from your food web, how would its loss impact the other organisms?

10) Are there any endangered or threatened species in your food web? If the species goes extinct, how would its loss impact the other organisms?

Explanation / Answer

Answer:

The Everglades is tropical wetlands in the southern part of Florida in U.S

1. List of the Producers in the food web:

• Grass pink,

• Florida bonamia

• Florida Golden Aster

• Floating Bladderwort Butterfly Orchid

• Highlands scrub Hypericum

• Giant air plant

• Gumbo limbo

• Key tree cactus

• Comner cactus etc

2. List of the herbivores in food web:

• Key deer

• .key largo woodrat

• Kartland warbler etc.

3. List of omnivores in foodweb:

• Wild boar

• Black bear

• Cotton mouse etc.

4. List of carnivores in food web:

• Florida Panther

• Crocodile

• Alligator

• Pelican etc

5. Food chain in the food web contains:

Producer: Algae

primary consumer: Tadpoles

secondary consumer: Bass fishes

tertiary consumer:Alligators

Quaternary consumers:Burmese Python.

6. Non native species in food chain is Burmese python.

They are creating problems by eating native species like alligators and crocodiles etc. It breaks the food chains in the Everglades food web because python is not native species.

7. primary consumer: Tadpoles

In the food chain, if the population of primary consumer suddenly started to decline, the main reason behind is the overpopulation of secondary consumers and decline in Producers.

8. secondary consumer: Bass fishes

In the food chain, if the population of secondary consumer suddenly started to decline, the main reason behind is the overpopulation of tertiary consumers and decline in primary consumers.

9. Keystone species in the food web is: Periphyton algae

It is the base species of the food web. It provides food for the primary consumer. Many food chains depend on it.

10. Endangered species in the food web are American Alligator and crocodiles.

These species are very important in food web because they control the population density of secondary consumers directly and producers indirectly.they are also keystone species of Everglade eco-web.

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