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Intro to Ecology

Intro to Ecology. Ecology. scientific study of the interactions between organisms and the environment interactions determine distribution of organisms and their abundance. Organisms and the Environment. The environment of any organism includes: Abiotic , or nonliving, components

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Intro to Ecology

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  1. Intro to Ecology

  2. Ecology • scientific study of the interactions between organisms and the environment • interactions determine distribution of organisms and their abundance

  3. Organisms and the Environment • The environment of any organism includes: • Abiotic, or nonliving, components • Temperature • Water • Sunlight • Wind • Rocks and soil • Biotic, or living, components • Interactions with other species • Predation • Competition • Environmental components affect the distribution and abundance of organisms

  4. Subfields of Ecology • Organismal ecology studies how an organism’s structure, physiology, and (for animals) behavior meet environmental challenges

  5. Subfields of Ecology • Population ecology focuses on factors affecting how many individuals of a species live in an area

  6. Subfields of Ecology • Community ecology deals with the whole array of interacting species in a community

  7. Subfields of Ecology • Ecosystem ecology emphasizes energy flow and chemical cycling among the various biotic and abiotic components

  8. Subfields of Ecology • Landscape ecology deals with arrays of ecosystems and how they are arranged in a geographic region

  9. Climate • Four major abiotic components of climate: temperature, water, sunlight, and wind • Global climate patterns are determined largely by solar energy and the planet’s movement in space • Sunlight intensity • Oceans and their currents and large lakes • Mountains

  10. Biomes • major ecological associations that occupy broad geographic regions of land or water • determined by combinations of abiotic and biotic factors

  11. Aquatic Biomes • Major aquatic biomes: • Lakes • Wetlands • Streams and rivers • Estuaries • Intertidal zones • Oceanic pelagic biome • Coral reefs • Marine benthic zone

  12. Terrestrial Biomes • Major terrestrial biomes: • Tropical forest • Desert • Savanna • Chaparral • Temperate grassland • Coniferous forest • Temperate broadleaf forest • Tundra

  13. 30°N Tropic of Cancer LE 50-19 Equator Tropic of Capricorn 30°S Chaparral Tundra Key Temperate grassland High mountains Tropical forest Polar ice Temperate broadleaf forest Savanna Coniferous forest Desert

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