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Ecosystems and Energy
- 1. Energy Flow in Ecosystems
- 2. Important Questions Energy Flow In Ecosystems Give an example of a producer. Give an example of a consumer. What are the 4 kinds of consumers? Give an example of a decomposer. What is the function of a decomposer? What do food chains show? What does a food chain always begin with? How can ecosystems be affected by climate change?
- 3. Energy Roles An organism’s energy role is determined by how it obtains energy and how it interacts with other organisms. Each of the organisms in an ecosystem fills the energy role of producer, consumer, or decomposer.
- 4. Producers Energy enters most ecosystems as sunlight. Some organisms, such as plants, algae, and some bacteria, capture the energy of sunlight and store it as food energy. (Through photosynthesis) An organism that can make its own Energy is transferred to food is a producer.
- 5. Important Questions Energy Flow In Ecosystems Give an example of a producer. plants, algae, and some bacteria Give an example of a consumer. What are the 4 kinds of consumers? Give an example of a decomposer. What is the function of a decomposer? What do food chains show? What does a food chain always begin with? How can ecosystems be affected by climate change?
- 6. Consumers Some members of an ecosystem cannot make their own food. An organism that obtains energy by feeding on other organisms is a consumer.
- 7. Important Questions Energy Flow In Ecosystems Give an example of a producer. plants, algae, and some bacteria Give an example of a consumer. Any organism that obtains energy by feeding on other organisms (Wolf, Bird, People etc.) What are the 4 kinds of consumers? Give an example of a decomposer. What is the function of a decomposer? What do food chains show? What does a food chain always begin with?
- 8. Consumers Consumers are classified (grouped) by what they eat. Herbivores Carnivores Omnivores Scavengers
- 9. Important Questions Energy Flow In Ecosystems Give an example of a producer. plants, algae, and some bacteria Give an example of a consumer. Any organism that obtains energy by feeding on other organisms (Wolf, Bird, People etc.) What are the 4 kinds of consumers? Herbivores Carnivores Omnivores Scavengers Give an example of a decomposer. What is the function of a decomposer? What do food chains show? What does a food chain always begin with?
- 10. Consumers - Herbivores Consumers that eat only plants are herbivores. Examples: caterpillars and deer
- 12. Consumers - Carnivores Consumers that eat only animals are carnivores. Examples: Lions and spiders
- 14. Consumers - Omnivores Consumers that eat both plants and animals are omnivores. Crows, bears, and most humans are omnivores.
- 16. Consumers - Scavengers Some carnivores are scavengers. A scavenger is a carnivore that feeds on the bodies of dead organisms. Examples: catfish and vultures http://www.fisheriesmanagement.co.uk/catfish/catfish_introduction.htm
- 17. Decomposers Decomposers break down wastes and dead organisms and return the raw materials to the ecosystem. You can think of decomposers as nature’s recyclers. Mushrooms, bacteria, and some insects are common decomposers.
- 18. Important Questions Energy Flow In Ecosystems Give an example of a producer. plants, algae, and some bacteria Give an example of a consumer. Any organism that obtains energy by feeding on other organisms (Wolf, Bird, People etc.) What are the 4 kinds of consumers? Herbivores Carnivores Omnivores Scavengers Give an example of a decomposer. Mushrooms, bacteria, and some insects What is the function of a decomposer? What do food chains show? What does a food chain always begin with?
- 19. Food Chains and Food Webs Energy enters most ecosystems as sunlight and is converted into food molecules by producers. This energy is transferred to each organism that eats a producer, and then to other organisms that feed on these consumers. The movement of energy through an ecosystem can be shown in diagrams called food chains and food webs.
- 20. Food Chains Every living thing needs energy in order to live. Every time animals do something (run, jump) they use energy to do so. Energy is necessary for living beings to live and grow. Animals get energy from the food they eat, and all living things get energy from food. Plants use sunlight, water and nutrients to get energy (photosynthesis).
- 21. Food Chains A food chain shows how each living thing gets food, and how nutrients and energy are passed from creature to creature. Food chains begin with plant-life, and end with animal-life. Some animals eat plants, some animals eat other animals. http://www.sheppardsoftware.com/content/animals/kidscorner/foodchain/decomposers.htm
- 22. There is actually even more to this chain. After a hawk dies, fungi (like mushrooms) and other decomposers break down the dead hawk, and turn the remains of the hawk into nutrients, which are released into the soil. The nutrients (plus sun and water) then cause the grass to grow. It's a full circle of life and energy!!
- 23. Important Questions Energy Flow In Ecosystems Give an example of a producer. plants, algae, and some bacteria Give an example of a consumer. Any organism that obtains energy by feeding on other organisms (Wolf, Bird, People etc.) What are the 4 kinds of consumers? Herbivores Carnivores Omnivores Scavengers Give an example of a decomposer. Mushrooms, bacteria, and some insects What is the function of a decomposer? To recycle dead and decaying organisms in order to put nutrients back in the soil for producers. What do food chains show? They show how each living thing gets food, and how nutrients and energy are passed from creature to creature. What does a food chain always begin with? A producer How can ecosystems be affected by climate change?
- 24. How can ecosystems be affected by climate change?