california rapid assessment method (cram) for wetlands and
TRANSCRIPT
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California Rapid Assessment Method (CRAM)
for Wetlands and Riparian Habitats
Martha Sutula, Eric Stein, Betty FetscherSCCWRP
Josh Collins, Cristina Grosso, Letitia Grenier SFEI
Adam WiskindMLML
Ross ClarkCalifornia Coastal Commission
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• assessment tool: wetland & riparian habitat condition
• rapid
• observational, multiple choice
• identifies stressors
What is CRAM?
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CRAM Applicationso regional monitoring programs (e.g. So
Cal WRP & statewide) o watershed assessmentso agency-specific monitoring programs
(e.g. State & National Parks and Refuges)
o project monitoring(permits/restoration)
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All wetlands of all types in CaliforniaCRAM Scope
streams & assoc. riparianestuarine
coastal lagoondepressionalvernal pools
wet meadowsseeps and springslacustrine (lake)
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CRAM Conceptual Framework: Condition and Stressors
Wetland Condition
Landscape Hydrology Physical Structure
Biotic Structure
Stressor Check List
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CRAM Conceptual Framework: Condition Attributes and Metrics
Wetland Condition
Landscape Context
Hydrology Physical Structure
Biotic Structure
% of AA with Buffer
Buffer Condition
Ave Buffer Width
Connectivity
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Wetland Condition
Buffer Hydrology Physical Structure
Biotic Structure
Water Source
Hydrologic Connection
Hydroperiod
CRAM Conceptual Framework: Condition Attributes and Metrics
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Wetland Condition
Buffer Hydrology Physical Structure
Biotic Structure
Structural Patch Richness
Topographic Complexity
CRAM Conceptual Framework: Condition Attributes and Metrics
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Wetland Condition
Buffer Hydrology Physical Structure
Biotic Structure
Organic Matter Acc.
Vertical Biotic Structure
Interspersion & Zonation
Plant Comm. Composition
No. of Plant Layers Present
% Layers Dominated by Natives
No. of Co-dominant Spp.
% of Co-dominants as Natives
CRAM Conceptual Framework: Nested Condition Attributes & Metrics
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BUFFER / LANDSCAPE CONTEXT ATTRIBUTE
A > 75 - 100% B > 50 - 75% C 25 - 50%
Percent of AA with Buffer metric
D < 25% A > 100 m B > 60 - 100 m C 30 - 60 m
Average Buffer Width metric
D < 30 m
A Buffer for AA is characterized by abundant native vegetation and little to no cover of non-native invasive plants from the CalEPPC “A” list, with intact soils, and little or no refuse.
B
Buffer for AA is characterized by moderate cover of native vegetation, moderate cover of non-native invasive plants, intact or moderately disrupted soils, moderate or lesser amounts of trash or refuse, and minor intensity of human visitation or recreation.
C
Buffer for AA is characterized by a prevalence of non-native invasive plants, and either moderate or extensive soil disruption, moderate or greater amounts of trash or refuse, and moderate intensity of human visitation or recreation.
Buffer Condition metric
D
Buffer for AA is characterized by barren ground and highly compacted or otherwise disrupted soils, with moderate or greater amounts of trash or refuse, and moderate or greater intensity of human visitation or recreation.
Metric Rating SchedulesTypes of metric rating schedules:
1. continuous values / threshold cutoffs
2. narratives (indicators)
3. schematics
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Where to Assess
With
in
AA
Out
side
of
AA
Hydrology Present?• • Point Source (PS) Discharges (POTW, other non-stormwater discharge)• • Non-point Source (Non-PS) Discharges (urban runoff, farm drainage)• • Flow diversions • • Dams (reservoirs, detention basins, recharge basins)• Flow obstructions (culverts, paved stream crossings)• Weir/drop structure, tide gates• Dredged inlet/channel• Engineered channel (riprap, armored channel bank, bed)• Dike/levees, fills (e.g. from construction)• Groundwater extraction• • Other
Subtotal by Attribute
Physical Structure Present? • Filling or dumping of sediment orsoils (N/A for restoration areas)• Grading/ compaction (N/A for restoration areas)• Plowing/Discing (N/A for restoration areas)• Resource extraction (sediment, gravel, oil and/or gas) • Vegetation management• Excessive sediment or organic debris from watershed
• Nutrient-impaired (PS or Non-PS pollution)• Heavy-metal-impaired (PS or Non-PS pollution)• Pesticide- or trace-organics impaired (PS or Non-PS pollution)• Bacteria- and pathogen- impaired (PS or Non-PS pollution)• Trash or refuse• • Other
Stressor ChecklistStressor checklist
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How Was CRAM Developed?
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San Francisco Bay Area
Wetlands Regional Monitoring Program
San Francisco Bay Area
Wetlands Regional Monitoring Program
Central California Wetlands
Comprehensive GIS Project
Central Coast Wetlands
Working Group
Regional Partners across State
North Coast(SFEI)
Central Coast(MLML)
South Coast(SCCWRP)
CRAM Core Team
California Wetlands Monitoring
Venture
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CRAM Developmental Steps1. formed Statewide & Regional Teams
2. developed conceptual models of form and function draft classification, attributes, and metrics
3. conducted “verification”, followed by revision
4. conducted calibration v 4.2 – PUBLIC!
5. completed CRAM web site, software, user’s manual, training materials, reference resources.
cramwetlands.org
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• correlation w/ independent data
• reproducibility (w/in & between)
• user friendliness
• score distributions
Calibration Objectives
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Estuarine vegetation
Riparian birds
Stream benthic macroinvertebrates
Independent Data Sources
for CRAM calibration
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Map of statewide calibration
sites
Total sites used for calibration: 38 estuarine sites & 95 riverine sites
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CRAM attribute Type of Intensive Data
rcorrelation
pValue
-BMI IBI +0.623 <0.0001-richness of non-riparian bird species (MAPS3)
+0.427 0.006
-richness of non-riparian bird species (MAPS3)
+0.386 0.01-BMI IBI +0.592 <0.0001
Hydrology -species richness of all birds (MAPS1)
+0.323 0.04
Landscape
0.01
0.003
Physical -BMI IBI +0.346
Biotic -BMI IBI +0.404
Overall
All CRAM Attributes Had Sign. Correlation with Intensive Measure of Condition
Example: Riverine wetlands
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CRAM Developmental Steps1. formed Statewide & Regional Teams
2. developed conceptual models of form and function draft classification, attributes, and metrics
3. conducted “verification”, followed by revision
4. conducted calibration v 4.2 – PUBLIC!
5. completed CRAM web site, software, user’s manual, training materials, reference resources.
cramwetlands.org
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Accessing CRAM materials:www.cramwetlands.org
More information:Betty Fetscher
[email protected] 714-372-9237
More information:Betty Fetscher
[email protected] 714-372-9237