city of bellingham habitat restoration master plan tag meeting february 26, 2013 esa | veda...
TRANSCRIPT
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City of BellinghamHabitat Restoration
Master Plan
TAG MeetingFebruary 26, 2013
ESA | VEDA Environmental | Northwest Ecological Services
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Existing Conditions Assessment Results
RIVERINE FUNCTION
Subwatershed
Flow Variation Function
Surface Storage Function
Biodiversity Maintenance
Habitat Creation and Maintenance
Chemical Regulation Thermo- regulation
ALDERWOOD CREEK Lower Median Lower Lowest Lower Median
BAKER CREEK TRIBUTARY Median Median Lowest Lower Lowest Median
BEAR CREEK Lower Highest Median Lower Median Higher
CEMETERY CREEK Higher Lower Higher Highest Median Lower
CHUCKANUT CREEK Highest Lower Higher Highest Highest Highest
CONNELLY CREEK Lower Median Lower Higher Lower Lowest
FEVER CREEK Lowest Median Lower Lower Lowest Lower
FORT BELLINGHAM Median Highest Highest Lower Median Lowest
HANNAH CREEK Higher Lowest Median Median Median Higher
LAKE PADDEN Highest Highest Lowest Higher Higher Higher
LINCOLN CREEK Lowest Higher Lower Median Lower Lower
LITTLE SQUALICUM CREEK Lowest Median Lowest Lowest Higher Higher
LOST CREEK Higher Highest Higher Lowest Higher Lower
LOWER BAKER CREEK Median Lower Median Median Lowest Median
LOWER PADDEN CREEK Median Lower Lower Median Lower Median
LOWER SPRING CREEK Lower Lower Highest Median Lower Higher
LOWER SQUALICUM Median Higher Higher Higher Median Lowest
LOWER TOAD CREEK Higher Lowest Median Higher Higher Median
LOWER WHATCOM CREEK Lowest Lowest Highest Median Lowest Lowest
SILVER CREEK TRIBUTARY #1 Median Higher Higher Lower Higher Median
SILVER CREEK TRIBUTARY #2 Lower Median Lowest Lowest Median Lower
SPOKANE CREEK Highest Higher Median Higher Highest Highest
UPPER PADDEN CREEK Higher Lowest Median Highest Highest Highest
UPPER WHATCOM CREEK Highest Higher Highest Highest Highest Highest
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Overview of Today’s Presentation
•Quick review of where we have been• Thorough walk-through of detailed example
explaining analysis methods• Brief summary discussion for all habitat groups• Talk about next steps and review assignments
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Goals of Today’s Presentation
• For the TAG members to have an working understanding of the existing conditions analysis methods
• Facilitate review efforts by the TAG
• Please ask questions if anything is not clear, you want more specific information, or if we are moving to fast!!
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Previously Presented Conceptual Model to TAG
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Previously Presented Conceptual Model to TAG
Initial Habitat Groups•Riverine•Riparian•Wetland•Urban• Forest (2 categories)•Meadow/shrub•Nearshore/ estuarine
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Conceptual Model Memorandum
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Conceptual Model Memo Contents
• Proposed Habitat Groups and analysis scale• Screening criteria for Functions and Attribute
MeasuresData availabilityData analysis protocolDirect MeasureRepeatable Sensitive• Proposed draft relationships for habitat groups
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Changes to Habitat Groups
Revised Habitat Groups•Wetland•Meadow/shrub•Nearshore/ estuarine •COMBINED Riverine and Riparian (now
Riverine)• Forest (ONE category)•REMOVED Urban
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Functions and Measures Tables
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Questions on Review of Past Project Work?
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Existing Conditions Analysis Overview•Completed data acquisition and evaluation• Altered relationships in conceptual framework,
including some functions and numerous measures•Ran analysis of attribute measures•Reviewed attribute measure output data• Transformed/normalized data• Assigned weighting factors for functions and
measures•Determined output data categories and
distribution• Summarized results by analysis area/function
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Example – Stepwise Walkthrough of Existing Conditions Analysis
•Using Riverine Habitat Group –Biodiversity Function for example
•Refer to handout Sheets 1 through 14 during walkthrough
• Again, please ask questions if anything is not clear or you want more specific information
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Example – Riverine Habitat Group
• 24 Sub-watersheds• Six functions advanced through initial screeningFlow variationSurface storageBiodiversity maintenanceHabitat creation and maintenanceChemical regulationThermo-regulation• Revised some relationships based on data
availability
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Riverine Habitat Group Sub-watersheds
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Revised Relationships in Riverine Group – Biodiversity Function (Sheet E-1)
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Biodiversity Calculations Spreadsheet (Sheet E-2)
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Weighting of Functions and Attributes
•Data quality•Geographic coverage of data•Demonstrated relationships based on peer-
reviewed science• In general, assumed equal weighting unless
factors above dictate otherwise
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Summary of Biodiversity Function Analysis (Sheet E-3)
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Biodiversity Function Score – Ordered Results (Sheet E-4)
Subwatershed NameBiodiversity Maintenance
Function Score Ordered Biodiversity Score
LAKE PADDEN 0.432 1
BAKER CREEK TRIBUTARY 0.480 2
LITTLE SQUALICUM CREEK 0.500 3
SILVER CREEK TRIBUTARY #2 0.503 4
FEVER CREEK 0.519 5
LINCOLN CREEK 0.545 6
ALDERWOOD CREEK 0.548 7
CONNELLY CREEK 0.561 8
LOWER PADDEN CREEK 0.565 9
HANNAH CREEK 0.570 10
SPOKANE CREEK 0.600 11
UPPER PADDEN CREEK 0.609 12
BEAR CREEK 0.627 13
LOWER BAKER CREEK 0.633 14
LOWER TOAD CREEK 0.657 15
SILVER CREEK TRIBUTARY #1 0.663 16
CEMETERY CREEK 0.665 17
LOWER SQUALICUM 0.669 18
LOST CREEK 0.672 19
CHUCKANUT CREEK 0.690 20
LOWER SPRING CREEK 0.694 21
LOWER WHATCOM CREEK 0.714 22
FORT BELLINGHAM 0.718 23
UPPER WHATCOM CREEK 0.745 24
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Biodiversity Function Data Distribution (E-5)
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Other Riparian Function Distributions (Sheets E-6 and E-7)
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How Should Results Be Grouped? (Sheet E-4)
Subwatershed NameBiodiversity Maintenance
Function Score Ordered Biodiversity Score
LAKE PADDEN 0.432 1
BAKER CREEK TRIBUTARY 0.480 2
LITTLE SQUALICUM CREEK 0.500 3
SILVER CREEK TRIBUTARY #2 0.503 4
FEVER CREEK 0.519 5
LINCOLN CREEK 0.545 6
ALDERWOOD CREEK 0.548 7
CONNELLY CREEK 0.561 8
LOWER PADDEN CREEK 0.565 9
HANNAH CREEK 0.570 10
SPOKANE CREEK 0.600 11
UPPER PADDEN CREEK 0.609 12
BEAR CREEK 0.627 13
LOWER BAKER CREEK 0.633 14
LOWER TOAD CREEK 0.657 15
SILVER CREEK TRIBUTARY #1 0.663 16
CEMETERY CREEK 0.665 17
LOWER SQUALICUM 0.669 18
LOST CREEK 0.672 19
CHUCKANUT CREEK 0.690 20
LOWER SPRING CREEK 0.694 21
LOWER WHATCOM CREEK 0.714 22
FORT BELLINGHAM 0.718 23
UPPER WHATCOM CREEK 0.745 24
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Considerations for Category Break Determination
• Based on relative function scores•Need enough categories to be meaningful and
useful in prioritization•Need outliers (extreme high and low values) to be
within similar groups•Needs to be statistically-based
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Category Break Options Explored
• Based on various standard deviations from the mean • Based on quartiles (four equal categories)• Based on quintiles (five equal categories)
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One Standard Deviation (Sheet E-8)
Subwatershed Number Subwatershed Name
Biodiversity Maintenance Score
1 LAKE PADDEN 0.432
2 BAKER CREEK TRIBUTARY 0.480
3 LITTLE SQUALICUM CREEK 0.500
4 SILVER CREEK TRIBUTARY #2 0.503
5 FEVER CREEK 0.519
6 LINCOLN CREEK 0.545
7 ALDERWOOD CREEK 0.548
8 CONNELLY CREEK 0.561
9 LOWER PADDEN CREEK 0.565
10 HANNAH CREEK 0.570
11 SPOKANE CREEK 0.600
12 UPPER PADDEN CREEK 0.609
13 BEAR CREEK 0.627
14 LOWER BAKER CREEK 0.633
15 LOWER TOAD CREEK 0.657
16 SILVER CREEK TRIBUTARY #1 0.663
17 CEMETERY CREEK 0.665
18 LOWER SQUALICUM 0.669
19 LOST CREEK 0.672
20 CHUCKANUT CREEK 0.690
21 LOWER SPRING CREEK 0.694
22 LOWER WHATCOM CREEK 0.714
23 FORT BELLINGHAM 0.718
24 UPPER WHATCOM CREEK 0.745
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Quartiles - Four Even Categories (Sheet E-9)
Subwatershed Number Subwatershed Name
Biodiversity Maintenance Score
1 LAKE PADDEN 0.432
2 BAKER CREEK TRIBUTARY 0.480
3 LITTLE SQUALICUM CREEK 0.500
4 SILVER CREEK TRIBUTARY #2 0.503
5 FEVER CREEK 0.519
6 LINCOLN CREEK 0.545
7 ALDERWOOD CREEK 0.548
8 CONNELLY CREEK 0.561
9 LOWER PADDEN CREEK 0.565
10 HANNAH CREEK 0.570
11 SPOKANE CREEK 0.600
12 UPPER PADDEN CREEK 0.609
13 BEAR CREEK 0.627
14 LOWER BAKER CREEK 0.633
15 LOWER TOAD CREEK 0.657
16 SILVER CREEK TRIBUTARY #1 0.663
17 CEMETERY CREEK 0.665
18 LOWER SQUALICUM 0.669
19 LOST CREEK 0.672
20 CHUCKANUT CREEK 0.690
21 LOWER SPRING CREEK 0.694
22 LOWER WHATCOM CREEK 0.714
23 FORT BELLINGHAM 0.718
24 UPPER WHATCOM CREEK 0.745
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Quintiles - Five Even Categories (Sheet E-10)
Subwatershed Number Subwatershed Name
Biodiversity Maintenance Score
1 LAKE PADDEN 0.432
2 BAKER CREEK TRIBUTARY 0.480
3 LITTLE SQUALICUM CREEK 0.500
4 SILVER CREEK TRIBUTARY #2 0.503
5 FEVER CREEK 0.519
6 LINCOLN CREEK 0.545
7 ALDERWOOD CREEK 0.548
8 CONNELLY CREEK 0.561
9 LOWER PADDEN CREEK 0.565
10 HANNAH CREEK 0.570
11 SPOKANE CREEK 0.600
12 UPPER PADDEN CREEK 0.609
13 BEAR CREEK 0.627
14 LOWER BAKER CREEK 0.633
15 LOWER TOAD CREEK 0.657
16 SILVER CREEK TRIBUTARY #1 0.663
17 CEMETERY CREEK 0.665
18 LOWER SQUALICUM 0.669
19 LOST CREEK 0.672
20 CHUCKANUT CREEK 0.690
21 LOWER SPRING CREEK 0.694
22 LOWER WHATCOM CREEK 0.714
23 FORT BELLINGHAM 0.718
24 UPPER WHATCOM CREEK 0.745
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Adjusted Quintiles Were Selected as Preferred Method (Sheet E-11)
Subwatershed Number Subwatershed Name
Habitat Creation and Maintenance
Score
1 SILVER CREEK TRIBUTARY #2 0.090
2 LOST CREEK 0.199
3 ALDERWOOD CREEK 0.202
4 LITTLE SQUALICUM CREEK 0.218
5 FORT BELLINGHAM 0.225
6 SILVER CREEK TRIBUTARY #1 0.227
7 BAKER CREEK TRIBUTARY 0.229
8 FEVER CREEK 0.238
9 BEAR CREEK 0.240
10 LOWER WHATCOM CREEK 0.249
11 LOWER BAKER CREEK 0.259
12 LOWER SPRING CREEK 0.283
13 HANNAH CREEK 0.289
14 LINCOLN CREEK 0.313
15 LOWER PADDEN CREEK 0.316
16 LOWER TOAD CREEK 0.340
17 LOWER SQUALICUM 0.341
18 CONNELLY CREEK 0.344
19 LAKE PADDEN 0.380
20 SPOKANE CREEK 0.401
21 CHUCKANUT CREEK 0.418
22 CEMETERY CREEK 0.451
23 UPPER PADDEN CREEK 0.523
24 UPPER WHATCOM CREEK 0.587
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Functional Category Assignment
• Should reflect that all categories are relative to other analysis units in Project Area•Names were selected to indicate relative function
and comparative to average (median) condition:HighestHigherMedianLowerLowest
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Results Color Coded to Relative Condition Score (Sheet E-12)
Subwatershed Number Subwatershed Name
Habitat Creation and Maintenance
Score Functional Score Category1 SILVER CREEK TRIBUTARY #2 0.090
Lowest2 LOST CREEK 0.1993 ALDERWOOD CREEK 0.2024 LITTLE SQUALICUM CREEK 0.2185 FORT BELLINGHAM 0.225
Lower6 SILVER CREEK TRIBUTARY #1 0.2277 BAKER CREEK TRIBUTARY 0.2298 FEVER CREEK 0.2389 BEAR CREEK 0.240
10 LOWER WHATCOM CREEK 0.249
Median
11 LOWER BAKER CREEK 0.25912 LOWER SPRING CREEK 0.28313 HANNAH CREEK 0.28914 LINCOLN CREEK 0.31315 LOWER PADDEN CREEK 0.31616 LOWER TOAD CREEK 0.340
Higher17 LOWER SQUALICUM 0.34118 CONNELLY CREEK 0.34419 LAKE PADDEN 0.38020 SPOKANE CREEK 0.40121 CHUCKANUT CREEK 0.418
Highest22 CEMETERY CREEK 0.45123 UPPER PADDEN CREEK 0.52324 UPPER WHATCOM CREEK 0.587
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Biodiversity Results by Sub-watershed (Sheet E-13)
Subwatershed
Biodiversity Maintenance Relative Function Rating
ALDERWOOD CREEK Lower
BAKER CREEK TRIBUTARY Lowest
BEAR CREEK Median
CEMETERY CREEK Higher
CHUCKANUT CREEK Higher
CONNELLY CREEK Lower
FEVER CREEK Lower
FORT BELLINGHAM Highest
HANNAH CREEK Median
LAKE PADDEN Lowest
LINCOLN CREEK Lower
LITTLE SQUALICUM CREEK Lowest
LOST CREEK Higher
LOWER BAKER CREEK Median
LOWER PADDEN CREEK Lower
LOWER SPRING CREEK Highest
LOWER SQUALICUM Higher
LOWER TOAD CREEK Median
LOWER WHATCOM CREEK Highest
SILVER CREEK TRIBUTARY #1 Higher
SILVER CREEK TRIBUTARY #2 Lowest
SPOKANE CREEK Median
UPPER PADDEN CREEK Median
UPPER WHATCOM CREEK Highest
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Repeated Analysis Process for All Functions in Riverine Group (Sheet E-14)
RIVERINE FUNCTION
Subwatershed
Flow Variation Function
Surface Storage Function
Biodiversity Maintenance
Habitat Creation and Maintenance
Chemical Regulation
Thermo- regulation
ALDERWOOD CREEK Lower Median Lower Lowest Lower Median
BAKER CREEK TRIBUTARY Median Median Lowest Lower Lowest Median
BEAR CREEK Lower Highest Median Lower Median Higher
CEMETERY CREEK Higher Lower Higher Highest Median Lower
CHUCKANUT CREEK Highest Lower Higher Highest Highest Highest
CONNELLY CREEK Lower Median Lower Higher Lower Lowest
FEVER CREEK Lowest Median Lower Lower Lowest Lower
FORT BELLINGHAM Median Highest Highest Lower Median Lowest
HANNAH CREEK Higher Lowest Median Median Median Higher
LAKE PADDEN Highest Highest Lowest Higher Higher Higher
LINCOLN CREEK Lowest Higher Lower Median Lower Lower
LITTLE SQUALICUM CREEK Lowest Median Lowest Lowest Higher Higher
LOST CREEK Higher Highest Higher Lowest Higher Lower
LOWER BAKER CREEK Median Lower Median Median Lowest Median
LOWER PADDEN CREEK Median Lower Lower Median Lower Median
LOWER SPRING CREEK Lower Lower Highest Median Lower Higher
LOWER SQUALICUM Median Higher Higher Higher Median Lowest
LOWER TOAD CREEK Higher Lowest Median Higher Higher Median
LOWER WHATCOM CREEK Lowest Lowest Highest Median Lowest Lowest
SILVER CREEK TRIBUTARY #1 Median Higher Higher Lower Higher Median
SILVER CREEK TRIBUTARY #2 Lower Median Lowest Lowest Median Lower
SPOKANE CREEK Highest Higher Median Higher Highest Highest
UPPER PADDEN CREEK Higher Lowest Median Highest Highest Highest
UPPER WHATCOM CREEK Highest Higher Highest Highest Highest Highest
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Questions on Existing Conditions Analysis Example?
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Repeated Process for all Habitat Groups - Wetland
• Analysis units were 28 sub-watersheds• Seven functions advancedSurface water storageNitrogen removalPathogen removalOrganic matter export/contributionSediment/phosphorus removalWildlife habitatCarbon sequestration
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Wetland Habitat Group Analysis (cont.)
•Most functions were carried forward (exception was thermo-regulation) • Altered numerous attribute measures – generally
based on data availability and duplication•Relative condition categories as follows:Lowest and Highest = 5 sub-watsh. eachLower and Higher = 6 sub-watsh. eachMedian = 6 sub-watersheds
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Forest Habitat Group Analysis
• Analysis units were 85 forested habitat blocks based on Nahkeeta NW report• Two functions were advanced Biodiversity MaintenanceHabitat Creation and Maintenance•Can use attribute level metrics for next project
steps if necessary (numbering 3 and 2, respectively)
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Forest Habitat Group Analysis (cont.)
• Functions were revised substantially • Altered numerous attribute measures – generally
based on data availability•Relative condition categories as follows:Lowest and Highest = 14 habitat blocks eachLower and Higher = 16 habitat blocks eachMedian = 25 habitat blocks
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Meadow/Shrub Habitat Group Analysis
• Analysis units were 46 meadow/shrub habitat blocks based on Nahkeeta NW report• Two functions were advanced Biodiversity MaintenanceHabitat Creation and Maintenance•Can use attribute level metrics for next project
steps if necessary (numbering 2 and 2, respectively)
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Meadow/shrub Habitat Group Analysis (cont.)
• Functions were revised substantially • Altered numerous attribute measures – generally
based on data availability•Relative condition categories as follows:Lowest and Highest = 7 habitat blocks eachLower and Higher = 9 habitat blocks eachMedian = 14 habitat blocks
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Nearshore/ Estuarine Habitat Group
• Analysis used methodology in WRIA 1 nearshore assessment (CGS/Anchor 2013)• Same methods as WRIA 1 analysis, but scaled to
project area •Methodology rated stressors, analogous to
function ratings for other habitat groups• EVC (Ecological Value Criteria) scores scaled to
project area.• Existing conditions and results presented in
memorandum
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Questions on Existing Conditions Analysis for Other Habitat Groups?
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Questions for TAG to Consider / Answer When Reviewing Existing Conditions
• Are the results of the analyses consistent with your understanding of conditions in the study area?
• Are the attribute measures analyzed useful and weighted appropriately?
• Are all of the functions analyzed useful for restoration prioritization, or are some superfluous?
• Are there any data sources or additional metrics that would strengthen the analyses?
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Next Steps
•Receive TAG comments on existing condition analysis•Refine analysis and re-run if Required• Prepare draft list of restoration actions and
determine affect on each ecological function• Prepare matrix tying existing conditions to
restoration actions to prioritize key actions • Prepare memorandum presenting results of initial
(without constraints) prioritized list of actions for each analysis unit
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Questions?