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Biome

Biome. Climax community over a large geographical area. Ecological. Reasons for Biomes?. 1. Temperature C. Hart Meriam (1898) eastern USA “Life Zones” latitude Arizona & Florida?. Reasons for Biomes?. 1. Temperature 2. Moisture 3. Fire (Complex Set of Factors!). Biomes of the USA.

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Biome

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  1. Biome Climax community over a large geographical area. Ecological

  2. Reasons for Biomes? • 1. Temperature • C. Hart Meriam (1898) eastern USA • “Life Zones” latitude • Arizona & Florida?

  3. Reasons for Biomes? • 1. Temperature • 2. Moisture • 3. Fire • (Complex Set of Factors!)

  4. Biomes of the USA

  5. Biomes of the USA • Mediterranean • Temperate Rain Forest • Desert • Grassland • Eastern Deciduous forest • Semitropical Rainforest • Coniferous Forest • Tundra

  6. Plant Taxonomy • Biomes are referred to as Formations or Floristic Regions • “Each characterized by numerous endemic species and by an unduplicated make-up of species.” • -L. Benson

  7. Floristic Regions of the USA-L. Benson • Western Woodland and Brush Region • Pacific Northwest • Southwest Desert Region • Plains and Prairie Region • Eastern Forest Region • Subtropical Region • Northern Coniferous Forest Region • Boreal Alpine • Rocky Mt. Region

  8. Floristic Regions of the USA-L. Benson • Boreal Alpine/Rocky Mt. Region • (Biome/Floristic changes easily observed) • North-South • White Mts. • Rocky Mts. • 1000 ft. = 600 miles

  9. Rocky Mts.Vegetation Zones • Foothills • Montane or Coniferous (Doug firs, Ponderosa Pines) • Subalpine Forest (Subalpines firs, Spruces) • Hudsonian (scattered, stunted trees) • Alpine Tundra (willows, cushion plants)

  10. Climax Communities/Local Associations • Eastern Deciduous Forest • Beech-Maple • Oak Hickory • Grassland • Tallgrass Prairie • Mixed-grass Prairie • Short-grass Prairie

  11. Grasslands of the USA • (Grasslands/Prairies)

  12. Grasslands of the USA • (Grasslands/Prairies)

  13. Missouri General Land Survey 1815 -1818

  14. Pre-settlement Prairie in Missouri

  15. Pre-settlement Prairie in Northwest Missouri > 70%

  16. Pre-settlement Prairie in Northwest Missouri > 70% • Perenials • Extensive root systems • Warm season growth • Disease and insect resistance • Good coverage for wildlife • Food for wildlife • Forage programs • Re-established natural areas

  17. Precipitation Zones in Missouri

  18. Reasons for Prairies • 1. Temperature • 2. Precipitation • 3. Fire!

  19. Local Associations/Climax Communities • Tend to form if: • Conditions are natural • Proper seed bank is available

  20. If local association (climax community) is destroyed? • - Series of plant communities • Seral Stages • Natural Succession

  21. Seral Stages

  22. Climax Community

  23. Seral Stages/Secondary Growth • A major part of the natural environment!

  24. Floristic Regions of Missouri-J. Steyermark • Plant Distribution and Topography

  25. Natural Divisions of Missouri- MDC/MDNR • Plant/Animal Distribution, Topography and Geographical History

  26. Natural Divisions of Missouri- MDC/MDNR • Plant/Animal Distribution, Topography and Geographical History

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