Start-up for 4/14/14 What is a food web? Why are producers and decomposers vital to the stability of a food web? Why is energy lost as you move up a food web?

Biology, Chapter 3-3 Nutrient Cycles of Ecosystems Students will: Define ecology and related terminology. Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem. Summarize the results of nutrient limitations.

Define ecology and related terminology. I Play Catcher Every BaseBall game.

What is Ecology? What is an ecosystem? Define ecology and related terminology. What is Ecology? Ecology is the study of relationships between living things and their environment. What is an ecosystem? Ecosystem is a system of living things that interact with each other and with the non-living world. A Biome is a collection of related ecosystems.

What is Biotic? What is Abiotic? Living factors of an ecosystem. Define ecology and related terminology. What is Biotic? Living factors of an ecosystem. Write 3 examples in your reminder box. What is Abiotic? Non-living factors of an ecosystem. Write 3 examples in your reminder box.

Main Ecosystems: Desert Rainforest Ocean Deciduous Coniferous Forest Define ecology and related terminology. Main Ecosystems: Desert Rainforest Ocean Deciduous Coniferous Forest Tundra Chaparral Grassland Savanna Temperate Forrest

B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem. However…….. An ecosystem can be as large as the Sahara Desert, or as small as a puddle!!! Ecosystems are more than just the organisms they contain. Geography, weather, climate and geologic factors also influence the interactions within an ecosystem. Nutrient cycles contribute to maintaining the balance of an ecosystem. Nutrient cycles move atoms between abiotic and biotic factors of an ecosystem.

The WATER Cycle: Analyze the following B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem. Look at both ends of the arrows to help List two or more examples of The WATER Cycle: Analyze the following Abiotic Factors: Water in ocean Snow Clouds Air (Atmosphere) Soil Biotic Factors: Plants Animals Humans

The WATER Cycle: Analyze the following B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem. List at least 3 examples of water moving between biotic and abiotic factors: The WATER Cycle: Analyze the following Plant Transpiration to Clouds Seepage through soil to plant roots Runoff to lakes where animals can drink

The Carbon Cycle Analyze the following B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem. Look at both ends of the arrows to help List two or more examples of The Carbon Cycle Analyze the following Abiotic Factors: CO2 in Atmosphere Burning Fossil Fuels Fire CO2 in Ocean Biotic Factors: Plants Animals Decomposers

The Carbon Cycle Analyze the following B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem. List at least 3 examples of carbon moving between biotic and abiotic factors: The Carbon Cycle Analyze the following 1. Animal Respiration releases CO2 to atmosphere 2. CO2 from atmosphere absorbed by producers for PSN 3. Decomposers break down dead organisms and release to atmosphere What two processes play a major part in recycling carbon?

B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem. The Nitrogen Cycle Nitrogen Fixation – some plants (legumes) can take nitrogen from the air and convert it to ammonia (NH3). This is added to soil. Denitrification – Conversion of nitrates to atmospheric nitrogen gas.

The Nitrogen Cycle Analyze the following B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem. Look at both ends of the arrows to help List three or more examples of The Nitrogen Cycle Analyze the following Abiotic Factors: N2 in Atmosphere Nitrogen in fertilizer Ammonia in soil Nitrates in soil Biotic Factors: Plants Animals Decomposers

The Nitrogen Cycle Analyze the following B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem. List at least 3 examples of nitrogen moving between biotic and abiotic factors: The Nitrogen Cycle Analyze the following 1. Plants absorbing fertilizer from the soil 2. Plants fixing nitrogen gas into ammonia in the soil 3. Animals eating plants with nitrogen and going the bathroom

Balance Ecosystems will fail if they do not remain in balance. C) Summarize the results of nutrient limitations. Balance Ecosystems will fail if they do not remain in balance. No community can carry more organisms than its food, water and shelter can accommodate.

C) Summarize the results of nutrient limitations.

C) Summarize the results of nutrient limitations. Why is this a bad thing? Some algae blooms produce toxic chemicals that will kill the fish and contaminate shellfish.

Understanding Check – Write a 3-2-1 Summary 3 things I learned were 2 things I want to know more about or still have questions about are 1 thing I will never forget is