Ecosystems.

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What is an ecosystem? Chapter 5 Lesson 1.

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Presentation transcript:

Ecosystems

What is Ecology? Ecology is the study of relationships between living things and 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 physical world. A Biome is a collection of related ecosystems.

Main Ecosystems: Desert Rainforest Ocean Taiga Tundra Chaparral Grassland Temperate Forrest

However…….. An ecosystem can be as large as the Sahara Desert, or as small as a puddle!!! Ecosystems are more than just the organisms that live there. Geography, weather, climate and geologic factors also influence the interactions within an ecosystem.

Living Elements (Biotic) Plants animals Ecosystems are the living and non-living parts of a habitat working together. Living Elements (Biotic) Plants animals Non- Living Elements (Abiotic) Landforms Rocks Sand Soil Water Air Sunlight

Levels of Organization in Ecosystem Individual: A single organism in an environment Population: Individuals of the same species living together in an environment Community: ALL of the different populations of organisms that are living in a specific habitat. ECOSYSTEM: a community and its physical environment

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.

http://www.youtube.com/watch?v=O3CZFfyed3M