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Valley Riparian Woodlands

General Ecosystem Characteristics

  • Riparian means a transitional area between an area of water and the land near or above it (A Bank)

  • High diversity of wildlife and plantlife.

  • Logging, grazing and development have casused riparian woodlands to decrease an estimated 95%

  • Efforts are being made to restore the habitat

Side-View of Riparian Woodland

Picture of a California Riparian Woodland

San Joaquin River

Vegetation & Plant Life

The Harbaceous Layer consists of :

Rushes

Miner's Lettuce

Douglas Sagewort

Poison Hemlock

Sedges

Hoary Nettle

Typical understory shrubs include:

Wild Grape

Wild Rose

California Blackberry

Poison Oak

Bottom Bush

Willows

Sub-Canopy Layer

White Alder

Boxelder

Oregon Ash

Canopy Layer

Cottonwood

Colifornia Sycamore

Valley Oak

Animal Life

  • Mammals

Animal Life

  • Birds
  • Reptiles

Beaver

Beaver

Snowy Egret

Turtle

Turtle

Trophic Relationships

Organic Matter Processing

Riparian Vegetation

Generalized Food Web

Effects of Human Impact on Ecosystem

  • Heavy urbanization, with levees have ruined much of the Riparian ecosystems.

Effects of Human Impact on Ecosystem

Numbers on Urbanization And Ecosystem loss

Information From: California State University, Chico

Department of Geography and Planning and

Geographic Information Center

April, 2003

Geographical Information & Map

Valley Riparian Woodland Decline

Geographical Information & Map

  • Approximately 102,000 acres of Riparian Woodland remain in California.
  • 49,000 acres are in a disturbed state.
  • Heavy urbanization is the cause of reduced woodland size.

Valley Riparian Woodlands Pre-1900s

Large Urbanization Has Limited Riparian habitats

Valley Riparian Woodlands Pre-1900s

List of Riparian Woodland Locations

  • Upper Sacramento River
  • Big Bend
  • Antelope Creek
  • Sacramento River
  • Knight's Landing
  • Calaveras River
  • San Joaquin River
  • Middle & Upper Tuolumne River
  • Cosumnes/Mokelumne Rivers

List of Local Locations:

  • Knight's Ferry
  • Dry Creek
  • Laloma Park

List of Local Locations:

Knights Ferry

Dry Creek

La Loma Park

Current Map Of Riparian Woodlands

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