food chain

food chain PowerPoint PPT Presentation

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Insects classification. Kingdom Animalia (Animals) Phylum Arthropoda (Arthropods) Superclass Hexapoda (Hexapods) Class Insecta (Insects) Subclass Pterygota (Winged Insects) Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies) Suborder Sternorrhyncha (Plant- parasitic Hemipterans) Superfamily Aleyrodoidea .

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food chain

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3. Aphids Numerous aphid species attack small grains, corn, and sorghum throughout the growing season. Examples include Russian wheat aphid (Diuraphis noxia (Mordvilko)) bird cherry-oat aphid (Rhopalosiphum padi (L.)) English grain aphid (Sitobion avenae (F.)) greenbug (Schizaphis graminum (Rondani) corn leaf aphid (R. maidis (Fitch)) yellow sugarcane aphid (Sipha flava (Forbes)) rose-grain aphid (Metopolophium dirhodum (Walker)).

4. Coccinellidae (ladybeetles) Ladybugs (also known as lady beetles or ladybird beetles) belong to the Coccinellidae family. Most are shiny red, orange, or yellow with dark spots. Ladybugs are carnivorous predators and eat other insects. Aphids are the ladybug's favorite food.

5. Objectives Build up a mini ecosystem. Identify the parts of the ecosystem. Identify producers and consumers.

6. Laboratory Demonstration: Ecosystem In two separate plastic bottles place some soil, some water and 3-4 beans. Let the beans grow into a small plant. This will take about 7 days. To bottle number one, add 10-20 aphids and 10-20 ladybugs. To bottle number two, add just 10-20 aphids. Close the bottles with netting. Observe the differences in each bottle during the next week.

8. Results and Data Analysis Have students answer the following questions: What happened in bottle 1? What happened in bottle 2? Describe the food chain in each bottle. Identify the consumers, producers, and predators. Describe and explain what the difference was in each bottle.

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