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Energy in Ecosystems (C) Copyright 2014-all rights reserved

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Presentation on theme: "Energy in Ecosystems (C) Copyright 2014-all rights reserved"— Presentation transcript:

1 Energy in Ecosystems (C) Copyright 2014-all rights reserved

2 Do Now Please answer the following questions to the best of your ability. Answer in complete sentences. Where do organisms get their energy from? Give at least 3 different organisms, and identify where they get their energy from? Example: Humans get their energy from food such as meat, dairy, fruit, vegetables etc… (C) Copyright 2014-all rights reserved

3 Objectives Students will be able to: Describe the movement of energy between the trophic levels of an ecosystem. Compare and contrast producers, consumers and decomposers and how they contribute to the transfer of energy through trophic levels. (C) Copyright 2014-all rights reserved

4 Important Vocabulary Important Vocabulary Producer Autotroph Consumer Heterotroph Chemosynthesis Food Chain Herbivore Carnivore Omnivore Detritivore Decomposer Trophic Level Food Web (C) Copyright 2014-all rights reserved

5 Producers and Consumers Producers: “AUTOTROPHS” Get their energy from non-living resources. Ex. Plants, algae, phytoplankton Consumers: “HETEROTROPHS” Get their energy by eating living, or once living resources. Ex. Animals, fungus (C) Copyright 2014-all rights reserved

6 Chemosynthetic Organisms Organisms in the Domain/Kingdom: Archaebacteria They produce their energy by CHEMOSYNTHESIS- the use of chemicals not sunlight to make energy (carbohydrates) They are mostly found near hydrothermal vents on the ocean floor. (C) Copyright 2014-all rights reserved

7 Practice Question #1 If you are at the park taking pictures of wildlife and you come across a bee taking nectar from a flower. Which is the producer? Which is the consumer? A. Bee=producer, flower=consumer B. Bee=consumer, flower=producer (C) Copyright 2014-all rights reserved

8 Practice Question #2 You are studying various heterotrophs, which of the following are you studying? A. Hummingbird B. Cactus C. Sea grass D. Soil (C) Copyright 2014-all rights reserved

9 Practice Question #3 Where do autotrophs get their energy from? a.soil b.water c.sunlight d.themselves (C) Copyright 2014-all rights reserved

10 Food Chain Food Chain Is the simplest model that links species by their feeding relationships. (C) Copyright 2014-all rights reserved

11 Types of Consumers Types of Consumers Herbivores: are organisms that eat only plants. ex. Rabbits Carnivores: are organisms that eat only animals. ex Hawks Omnivores: are organisms that eat both plants/animals. ex. Humans Detritivores: are organisms that eat dead organic matter "detritus" ex. millipede. decomposers such as fungi. (C) Copyright 2014-all rights reserved

12 Practice Question #4 Herbivores are which of the following? a.producers b.secondary consumers c.primary consumers d.decomposers (C) Copyright 2014-all rights reserved

13 Practice Question #5 Which of the following shows a single sequence of feeding relationships in an ecosystem? pyramid chain web d.consumer chain (C) Copyright 2014-all rights reserved

14 Food Web Shows the complex feeding relationships within an ecosystem. Each arrow points to the consumers Each arrow shows the direction of energy transfer. During each transfer, energy is lost to metabolic processes and the environment. (C) Copyright 2014-all rights reserved

15 Energy Pyramid Displays the levels of nourishment (trophic levels) in a food chain. Energy transfer is Ineffecient. Producers (bottom) have the most energy Transfer between trophic levels is about 1/10 (C) Copyright 2014-all rights reserved

16 Practice Question #6 Create an Energy Pyramid from this food chain. Include Producer/Consumer labels. (C) Copyright 2014-all rights reserved

17 Practice Question #7 A diagram of a food web is shown to the right. Which organism receives the most amount of energy from the producers? a.Owl c.Fox b.Snake d.Mouse (C) Copyright 2014-all rights reserved

18 Do Now Isolate one complete food chain from the given food web. Make sure to label the different trophic levels (levels of nutrition). (C) Copyright 2014-all rights reserved

19 35273742/images.jpg (producer/consumer) 35273742/images.jpg content/uploads/Hydrothermal-vent-NOAA-PMEL- Vents-Program-590x442.jpg (chemosynthetic) content/uploads/Hydrothermal-vent-NOAA-PMEL- Vents-Program-590x442.jpg http://www.field-studies- (food chain1) http://www.field-studies- ain.jpg/280760194/food_chain.jpg (food chain2) ain.jpg/280760194/food_chain.jpg 1.gif (food web) 1.gif ood-web-forest.jpeg (food web last do now) ood-web-forest.jpeg (C) Copyright 2014-all rights reserved

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