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Understanding Rangelands: Ecology, Legislation & Sustainability

Explore the biodiversity and management of rangelands, including types of vegetation, legislative acts, and ecological factors. Learn about plant succession, forage value, and the impact of human activities on rangeland sustainability.

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Understanding Rangelands: Ecology, Legislation & Sustainability

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  1. Range Vegetation BIOL 425/427

  2. What is “Rangeland”?

  3. A) Uncultivated

  4. B) Provides Forage forLarge Herbivores Livestock Wildlife

  5. Grazers

  6. Browsers

  7. Intermediate Feeders

  8. Typical Rangelands

  9. In Contrast: Pasturelands • Periodic Cultivation of Non-Native Forage • Species • Agricultural Inputs (Fertilizer, Irrigation)

  10. Extent of Rangelands(Worldwide) Food and Agriculture Organization (FAO) data (2000)

  11. Extent of Rangeland (North America) FAO data (2000)

  12. Rangeland in the West :(80% of Land Area) http://www.rangelandswest.org/index.org

  13. Rangeland Types A) Grasslands

  14. Rangeland Types B) Shrublands

  15. Rangeland Types C) Woodlands

  16. Rangeland Types D) Forests

  17. PLANTS!!!

  18. Trees (Gymnosperms)

  19. Trees (Angiosperms)

  20. Small Trees and Shrubs

  21. Small Trees and Shrubs

  22. Vegetative Characteristics

  23. Succulents

  24. Forbs

  25. Forbs

  26. Flower Characteristics

  27. Graminoids (Grasses, Rushes, Sedges)

  28. Grass Characteristics

  29. WARM-SEASON vs. COOL-SEASON PLANTS

  30. FORAGE VALUE

  31. POISONOUS PLANTS

  32. INCREASERS VERSUS DECREASERS

  33. “WEEDS”

  34. RANGELAND LEGISLATION ------------------------------------------- Transcontinental Railroad Act (1862) HOMESTEAD ACT (1862) MORRILL ACT (1862) Forest Reserves Act (1891) Stock Raising Homestead Act (1916) TAYLOR GRAZING ACT (1934) MULTIPLE USE ACT (1960) National Environmental Policy Act (1970) ENDANGERED SPECIES ACT (1973)

  35. TO GRAZE OR NOT TO GRAZE? Cost of ComplianceBy Trent Loos What is the price of freedom? How many Americans have died to protect our rights? Yet we have an additional price to pay to protect our right, as a rancher, to convert natural resources into value-added products. For Kit Laney of New Mexico, part of the price was 25 days in jail without bail.

  36. RANGE ECOLOGY

  37. ABIOTIC FACTORS

  38. BIOTIC FACTORS

  39. PLANT SUCCESSIONON THE RANGE Effect of Fire Suppression in Bear’s Ears (Southwestern Utah) Top: 1920s Bottom: 1988 http://www.cpluhna.nau.edu/Tools/repeatphotog.htm

  40. DESERTIFICATION

  41. RANGE ASSESSMENT

  42. SOURCES OF INFORMATION Journal of Range Management Holecheck, J.L. et al. 2004. Range Management: Principles and Practices. http://rangelandswest.org/index.html *Ivey, R.D. 2003. Flowering Plants of New Mexico Allred, K.W. 2005. A Field Guide to the Grasses of New Mexico, 3rd edition

  43. EL FIN(THE END)

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