Presentation on theme: "Drill #13: 4/29/2013 Using your previous knowledge, define the following and provide an example of each: –Producer –Consumer –Decomposer."— Presentation transcript:
Drill #13: 4/29/2013 Using your previous knowledge, define the following and provide an example of each: –Producer –Consumer –Decomposer
SWBAT Explain the processes involved in the water cycle, carbon cycle and nitrogen cycle. Define ecology and the levels of organization on our planet. Identify the producers and consumers in a food chain or web.
Agenda Turn in Project Notes on Levels of Organization Complete Nutrient Cycling WS and turn in today. Complete Levels of Organization and Food Web Worksheet for tomorrow.
Ecology The study of the interactions between living and nonliving things –Biotic-living parts of the environment Ex. Plants, animals, fungi, protist and bacteria –Abiotic-nonliving parts of the environment Ex. Air, water, chemical and physical conditions, light, temperature
Ecology Cont. Every organism depends on biotic and abiotic components to survive –When biotic or abiotic components change, the species has to adapt or it will die out
Interconnectedness All organisms interact with other organisms in their surroundings and abiotic factors –Survival of one is dependent on another
Levels of Organization in Ecology Organism Population-includes all the members of a species that live in one place at one time
Levels of Organization in Ecology Cont. Community-all of the different populations that live and interact in the same area –Only biotic factors Ecosystem-includes all communities in an area, as well as abiotic factors
Levels of Organization in Ecology Cont. Desert Deciduous Forest Grassland Chaparral Taiga Tundra Mountains Tropical Rainforest Savanna Biome: A group of ecosystems that have the same climate and distinctive plant and animal communities.
Levels of Organization in Ecology Cont. Biosphere-all the parts of the Earth that support and contain life
Major Roles of Organisms in an Ecosystems Define the terms producers (autotrophs) and consumers (heterotrophs). Color the organisms in the foodweb according to the key. Answer the analysis questions.
Drill #14: 4/30/13 Define the term biogeochemical cycle. Identify one reason why each of the following is important to living things: –Water –Carbon –Nitrogen
Drill #14: 4/30/13 Define the term biogeochemical cycle. A pathway by which an element or molecule moves through both biotic and abiotic compartments of Earth. Ex. chem nutrient cycles Identify one reason why each of the following is important to living things: –Water –Carbon –Nitrogen
SWBAT Explain the processes involved in the water cycle, carbon cycle and nitrogen cycle. Identify the producers and consumers in a food chain or web. Draw an energy pyramid and explain what happens to energy and you go up the pyramid
Food Webs Food webs show the transfer of energy from one trophic level (feeding or nutrient level) to another Made up of food chains Arrows in the food web represent energy flow (the arrow points to the organism doing the eating, therefore the direction of energy flow)
Square #1 Define each of the following: 1.Biotic Factor 2.Abiotic Factor 3.Limiting Factor 4.Carrying Capacity = living factors = nonliving factors = factors influencing population numbers = maximum population supported by an environment
Square #2 Chose one, 4-organism food chain from this food web and write the names of the organisms using arrows to show energy flow Label the organisms as producers, primary, secondary, and tertiary consumers.
Square #3 The pyramid at the right represents energy. Label each level with the name and type of organism from your food chain. If 10% of the total energy consumed is incorporated into the next level, write the amount of energy in each level if the bottom level starts at 1000 calories. Producer Primary Consumer Secondary Consumer Tertiary Consumer 1,000 100 10 1
Square #4 1.What happens to the energy as you go up the pyramid? 2.Why? –The 10% Rule: Producer Primary Consumer Secondary Consumer Tertiary Consumer 1,000 100 10 1 ENERGY Organisms lose energy as they…grow, eat, move, etc. The energy is turned into heat energy and is lost to the environment!
Drill #15: 5/1/13 Look at the photos below and name the ecological level. Why did you pick that level?
SWBAT Identify the producers and consumers in a food chain or web. Explain what happens when predator or prey populations fluctuate in an ecological community.
Agenda Finish Ecology Interactive Notes Deer: Predation or Starvation Worksheet Food Web Activity Worksheet
EXTENSION QUESTION! A pyramid is a good shape for the energy flow diagram because it shows the reduced calories available at each trophic level… –What else do you think gets reduced as you work your way up through the trophic levels?
Square #5 List the biotic and abiotic factors in this forest ecosystem BioticAbiotic
Square #6 List five factors that would be limiting factors in this forest ecosystem
Squares #7 + #8 Answer the following questions in complete sentences: 1.Predict what would happen to the members of the food chain if pollution from factories killed significant numbers of the primary consumers. 2.Predict what would happen if a better- adapted secondary consumer were to move into the ecosystem. 3.If humans built homes that decreased the habitat of this ecosystem, how would the carrying capacity be affected? Why?
Wrap up Describe what type of relationships exist between the coyote, the grounds squirrel, and the badger.
Exit Ticket BCR Interdependence in nature is illustrated by the transfer of energy through trophic levels. Use the forest food chain you developed to answer the following: –Explain how energy is obtained at each trophic level by the different organisms (consumer, producer, etc). –Describe the efficiency of energy transfer between trophic levels and discuss how the amount of energy available at each trophic level affects the structure of the ecosystem. –If the plant material contained a commercially produced toxin, what would be the likely effects of this toxin on this food web? Explain.