Levels of Organization in Ecosystems

1. Levels of Organization in Ecosystems

2. Biotic and Abiotic Factors • Biotic factor: any living thing in the environment • Plants, animals, bacteria, protists, fungi • Abiotic factor: any nonliving part of an environment • Water, sunlight, oxygen, temperature, soil • In any ecosystem, all living things interact with at least some other biotic and abiotic factors in the ecosystem

3. Levels of Organization

4. Levels of Organization

5. Levels of Organization • Community: made up of all the populations that live in an area at the same time • Example: Can include raccoons, pines, ferns, mushrooms, mosses, dragonflies, and other populations • Ecosystem: made up of one or more communities in an area and their abiotic factors • Biome: a group of ecosystems that have similar climates and organisms • Biosphere: the part of Earth that supports life • The top part of Earth’s crust, the waters that cover the Earth’s surface, the surrounding atmosphere, and all biomes

6. Habitats

7. Niches