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Rangeland Ecosystems of Idaho

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'a community of plants, animals, and microorganisms that are linked ... grassland, tundra, desert, tropical rainforest, deciduous forest and coniferous forests. ... – PowerPoint PPT presentation

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Title: Rangeland Ecosystems of Idaho


1
Rangeland Ecosystems of Idaho
Created by Jennifer Peterson In Cooperation
With Idaho Rangeland Resources Commission and the
University of Idaho - Rangeland Ecology
Management Department
2
Objectives
  • Define rangeland ecosystems
  • Discuss factors that create different ecosystems,
    biomes, and ecoregions
  • Identify and describe ecoregions of Idaho

3
What is an Ecosystem
  • a community of plants, animals, and
    microorganisms that are linked by energy and
    nutrient flows and that interact with each other
    and with the physical environment

-National Geographic Magazine
4
Examples of Ecosystems
Rainforest
Desert
Grassland
Coral Reef
Rotting Log
5
What is a Biome?
  • A very large ecosystem that occupies a distinct
    region.
  • Terrestrial biomes include
  • grassland, tundra, desert, tropical rainforest,
    deciduous forest and coniferous forests.
  • There are two basic aquatic biomes
  • freshwater and marine

6
Rangelands of the Earth
7
Rangelands of North America
These Ecosystems are Types of RANGELAND
8
What creates different biomes?
  • Precipitation
  • Temperature
  • Also
  • Soils
  • Topography

Robert Whittakers classification of biomes,
based on annual precipitation, temperature
9
What creates different biomes?
  • Precipitation
  • Temperature
  • Also
  • Soils
  • Topography

These are RANGELANDS
Robert Whittakers classification of biomes,
based on annual precipitation, temperature
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Idaho Vegetation Types
CalledEcoregions
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Vegetation vs Precipitation
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Soils of Idaho
15
Topography of Idaho
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Ecoregions of Idaho
  • Pacific Bunchgrass
  • Sagebrush Grassland
  • Juniper Woodland
  • Salt Desert Shrubland
  • Coniferous Forest Mountain Meadows

17
Pacific Bunchgrass
  • Characterized by
  • Deep, rich soils
  • Moist climate
  • Palouse and Camas Prairies
  • Precipitation 12-30
  • Today, area is mostly farmland

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Sagebrush Grassland
  • Characterized by
  • Drier soils
  • Hotter climate
  • Plains, plateaus, valleys south of the Snake
    River
  • Precipitation 10-15
  • Classic western rangeland type

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Juniper Woodlands
  • Characterized by
  • Shallow, rocky soils
  • Hotter climate
  • Southern Idaho (Owyhee area)
  • Precipitation 12-30
  • Potential problem due to fire suppression

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Salt Desert Shrub
  • Characterized by
  • Salty soils
  • Cold temperatures
  • Southern Idaho (Mountain Home area)
  • Precipitation lt10
  • Excellent winter range due to high nutritive value

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Coniferous Forest and Mountain Meadows
  • Characterized by
  • Andisols (volcanic ash, very fertile)
  • Dense forest with open meadows
  • Most of northern Idaho
  • Precipitation 40
  • Excellent wildlife habitat and summer range

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