beaver mediated anastomosed streams c lassified
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BEAVER - MEDIATED ANASTOMOSED STREAMS - C LASSIFIED Mark Beardsley - PowerPoint PPT Presentation

BEAVER - MEDIATED ANASTOMOSED STREAMS - C LASSIFIED Mark Beardsley & Jessica Doran The first step in wisdom is to know the things themselves; objects are distinguished and known by classifying them methodically and giving them


  1. BEAVER - MEDIATED ANASTOMOSED STREAMS - C LASSIFIED Mark Beardsley & Jessica Doran

  2. The first step in wisdom is to know the things themselves; objects are distinguished and known by classifying them methodically and giving them appropriate names. Therefore, classification and name-giving will be the foundation of our science. Carolus Linnaeus Systema Naturae (1735)

  3. Carolus Linnaeus Systema Naturae (1735)

  4. C4 R EFERENCE A PPLICATIONS • A SSESSMENT ( DEPARTURE , EVOLUTION ) • R ESTORATION (NCD) • I NVENTORY ( WATERSHED FUNCTION )

  5. Beaver-mediated meadow streams. Functions and services D B Water storage/ retention

  6. T HE D B S TREAM TYPE • ANASTOMOSED • BEAVERS - DAMS , PONDS , CHANNELS • FLOODPLAIN CONNECTION (H<<H C ) • STABLE OR AGGRADING (Qs in ≥ Qs out ) • VARIABLE W/D, K, S

  7. S TREAM E VOLUTION M ODEL D B C or E D or C Cluer and Thorne (2013) A Stream Evolution Model Integrating Habitat F G and Ecosystem Benefits. River Research and Applications.

  8. WHAT ’ S SO DAM D B IMPORTANT ? • D B IMPORTANT FUNCTIONS C • D B → C/E CONVERSION • C/E → D B RESTORATION

  9. D B FUNCTIONS Hydrology Habitat/wetland Water quality Floodplain connection Vegetation Temp. regulation Water structure/diversity Filtration storage/retention Aquatic habitat Nutrient cycling Base flow diversity Sediment maintenance Fisheries support storage/retention Flood attenuation Wildlife support Groundwater exchange

  10. C/E (1) D B (0) Pre- settlement D B D B → C CONVERSION C/E D B (0) C/E (1) Present day

  11. D B → C CONVERSION C (1) D B (0)

  12. D B → C CONVERSION Land use patterns

  13. D B → C CONVERSION Late 1800s Historic photos 2012

  14. D B → C CONVERSION F LOODPLAIN LANDFORM & SOILS

  15. R ESTORATION C → D B D B C C

  16. S UMMARY D B ( STAGE 0) EXISTS ! D B HIGHLY FUNCTIONAL D B → C/E C/E → D B

  17. S UMMARY D B ( STAGE 0) EXISTS ! D B HIGHLY FUNCTIONAL D B → C/E C/E → D B

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