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Five Levels of the Environment

Five Levels of the Environment. Biome. The climate and types of plants that are found in similar places around the world . Ecosystem.

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Five Levels of the Environment

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  1. FiveLevels of theEnvironment

  2. Biome • Theclimate and types of plantsthat are found in similar places aroundtheworld.

  3. Ecosystem • There are manyecosystemswithineachbiome. Insideanecosystem, living and non living factorsinteracttoform a stablesystem. Anecosystemissmallerthan a biome and onlyincludesorganisms and their local environment.

  4. Community • Made up of theliving componentsof theecosystem. Differentplants, animals and otherorganismsinteractwitheachother.

  5. Population • A group of organismsof thesamespeciesthatlive in thesamearea.

  6. Organism • A single individual animal, plant, fungusorotherlivingthing.

  7. Patternsexist in populations • PATTERNS IN SPACE • Populations can becrowdedtogether, spread farapartorlive in smallgroups. • Think of us!!

  8. Example 1: Creosote bushesin theMojavedesert • Spacedevenlythroughoutthedesert. • Notplantedbyhumans . • Samedistancefromeachotherbecausetheroots of eachbushrelease a toxinthatpreventstheroots of otherbushesfromgrowing.

  9. Example 2:Bluebirds • Birdhousesneedtobe at least 100 metersapartfromeachother. • Bluebirdsneeds a largearea of theirownaroundtheirnest in ordertocollectenoughinsectstofeedtheiryoung.

  10. Example 3: Herring • Swim in schools. • Individual fish are packedtogether. • Safety in numbers.

  11. Example 4: Wildebeests • RoamtheAfricangrasslands in closelypackedherds. • Group safety. • Thinkaboutit: evenifonememberisattacked, many more willsurvive.

  12. PATTERNS IN TIME • Thenumber of individuals in thepopulationmayriseorfall, dependingontheseasonorotherconditions, or as a result of interactionswithotherorganisms.

  13. Example 1: Wasps • In springyouwouldn’tseeyellowjacketwasps. • In autumntheywouldswarmyour picnic. • Populationsizechangedwith time. • In spring, thequeenwasplayseggs and new waspshatch. • Layseggsallsummerpopulationgrows. • Winter all die (exceptqueen) populationdecreases.

  14. Example 2: Birds • Seasonalpatterns • In North AmericabirdsflysouthtoCentral and South America in winter. • Food and goodnestingsites. • Small populations in winter and largeones in summer in North America.

  15. Example 3: Cicadas • Cicadasactuallyhatch and growundergroundover 17 years!!! Checkoutthe bar graphonthecicadapopulation.

  16. Didyouunderstand? • Answerthefollowingtofindout: • 1. What are twocharacteristics of a population? • 2. Orderthesetermsfromsimplesttomostcomplex (biome, community, ecosystem, organism, population). • 3. Infer: Howmighttheseasonalpatterns of insectpopulations relate toseasonalpatterns of birdpopulations?

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