epa region 5 assessing ecosystem condition in region 5 by mary l. white & charles g. maurice 1
TRANSCRIPT
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EPA Region 5
Assessing Ecosystem Condition in Region 5
byMary L. White & Charles G. Maurice
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HEALTHY COMMUNITIES AND ECOSYSTEMS
Protect, sustain or restore the health of people, communities, and ecosystemsusing integrated and comprehensive approaches and partnerships.
Goal 4
Objective 4.3 Restore and protect critical ecosystems
But how do we Prioritize issues?
Measure success?
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Partner Identified Ecosystems
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Three Criteria –DiversitySustainabilityRarity
Indicator data sets to populate these criteriaDiversity – four data setsSustainability – twelve data setsRarity – four data sets
Critical Ecosystem Assessment Model
CrEAM
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Base Map – National Land Cover Data Base 1992
30m x 30m pixel size
only undeveloped land coverclasses were used
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Ecoregion Legend
Omernik Ecoregions for Region 5
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Diversity SustainabilityRarity
4 data layers 4 data layers
12 data layers
final composite ecosystem score 7
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"Diversity" Layers
land cover diversity calculation by ecoregion
temp. and precipitation maxima by ecoregion
appropriateness of land cover
contiguous sizes of undeveloped areas
higher diversity(better)
lower diversity(worse)100 0
higher Shannon index lower Shannon index
higher temperature and precip lower temperature and precip
(Kuchler) appropriate land cover (Kuchler) inappropriate land cover
larger contiguous area smaller contiguous area
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area / perimeter calculation
waterbody created by impoundments
road density
contiguous sizes by land cover type
more contiguous(better)
more fragmented(worse)100 0
larger area/perimeter smaller area/perimeter
fewer impoundments more impoundments
lower road density higher road density
larger contiguous area smaller contiguous area
"Fragmentation" Layers
appropriateness of land cover(Kuchler) appropriate land cover (Kuchler) inappropriate land cover
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"Stress" Layers
airport noise
hazardous waste cleanup sites
water quality summary from BASINS model
air quality from OPPT air risk model
less stressed(better)
more stressed(worse)100 0
land outside of airport buffer zone land within airport buffer zone
land outside RCRA site zone land inside RCRA site zone
low N, sediment, high O2 high N, sediment, low O2
fewer exceedances of thresholds more exceedances of thresholds
Superfund NPL sites
waterway obstructions
land outside NPL sites land within NPL sites
fewer dams per HUC more dams per HUC
urban disturbanceland further from developed area land closer to developed area
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land cover rarity by ecoregion
species rarity per 7.5 minute quad
number of rare species per 7.5 minute quad
number of rare taxa per 7.5 minute quad
more rare species and features(better)
fewer rare species and features(worse)100 0
land cover type is very rare land cover type is ubiquitous
G1 Heritage rating G5 Heritage rating
more species observed fewer species observed
more taxa observed fewer taxa observed
"Rarity" Layers
* Raw rare species data used to generate these 3 layers were provided by the Natural Heritage Programs of Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin in cooperation with The Nature Conservancy. These data are confidential business information and cannot be provided or reproduced without written consent of the corresponding Natural Heritage Program. 11
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CrEAM / Essential Ecological Attributes Crosswalk
Diversity Sustainability Rarity
Biotic Condition 1 2 3
Landscape Condition 2 5 1
Chem. & Phys. Characteristics 7
Hydrology & Geomorphology 4
Natural Disturbance Regimes 1
Ecological Processes
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Airports13
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Water Quality14
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Air Toxics
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Composite layer for acriteria is the sum of all
normalized indicator layers
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Diversity compositescores 0 - 397
Sustainability compositescores 464 - 1157
Rarity compositescores 0 - 331
Criteria scores were normalizedbetween 0 – 100 and addedfor a final ecosystem score.
range = 23-253 mean = 139
Results
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Final Composite ofEcological Condition
Final CompositeScores
0-2021-4041-6061-8081-100no data
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low = 23high = 253
mean = 139
Distribution of composite ecosystem scores
Results
0
10000
20000
30000
40000
50000
60000
70000
80000
0 50 100 150 200 250 300Composite score
Top 1 %
Mean Top 10 %
Nu
mb
er o
f ce
lls
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Results
Composite score
co
un
t
-8000
-6000
-4000
-2000
0
2000
4000
6000
0 50 100 150 200 250 300
Top 10%Top 1%
Top .1%
AC BDF E
Composite score
Num
ber
of p
ixel
s
Top 1 %
MeanTop 10 %
first derivative
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A > 210 (top 0.1%)
B 209 - 190 (top 1.0%)
C 189 - 165 (top 10%)
D 164 - 122
E 121 - 76
F < 76
legendcategory score
Ecological Significance Ratings
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Ecological Significance Ratings
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10
100
1000
10000
100000
1000000
10000000
A B C D E F
Category
nu
mb
er o
f ce
lls
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Critical Ecosystem Assessment Model
To validate and evaluate model:
1. Best Professional Judgment2. Statistical Analysis3. SAB review4. Field validation (RARE grant)5. Peer review in journals
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Validation1. Best Professional Judgment
Areas in red havecomposite scores in the top 1% of all cells
1
2
3
4
5
67
400 km N
1 St. Croix State Park, MN2 Wisconsin Dells, Baraboo, WI3 Sleeping Bear Dunes National Lakeshore, MI4 Indiana Dunes National Lakeshore, IN5 Shawnee National Forest, IL6 Hoosier National Forest, IN7 Wayne National Forest, OH
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Within criterion correlation of data layers:
Diversity 0.41 between land cover diversity and contiguous area of undeveloped land
Sustainability 0.45 between weighted road density and development buffer
Rarity 0.52 between rare species abundance and rare taxa abundance
Thus we conclude that the individual data layers within a criterion do not duplicate each other.
2. Sensitivity Analysis
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Correlations between individual criteria and their relationship with the total composite score. All correlations aresignificant at p < .0001; N = 3,634,183.
Total CompositeScore
C1 Composite Score
C2 CompositeScore
C3 Composite Score
TotalCompositeScore
1.00 .59 .51 .34
C1 CompositeScore
.59 1.00 .40 -0.02
C2 CompositeScore
.51 .40 1.00 -0.08
C3 CompositeScore
.34 -0.02 -0.08 1.00
Correlations between individual criteria and their relationship with the total composite score. All correlations are
Thus we conclude that the criteria do not duplicate each other
Sensitivity Analysis
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http://www.epa.gov/sab/panels/epec_crmpesls.html
Evaluation of Model 3. SAB Review June 2004
5. Peer Review journal article
The Critical Ecosystem Assessment Model (CrEAM)Identifying healthy ecosystems for environmental protection planning
Mary L. White, Charles G. Maurice, Amy Mysz, Thomas BrodyIn
Campbell, J.C., K. B. Jones, J. H. Smith and M. T. KoppeNorth American Land Cover Summit
Association of American Geographers, 2008
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Develop quick* assessment protocols for forests non-forest terrestrial wetlands lakes
Validation of Model 4. RARE Grant 2003-2005
*quick meansassessment of a 300 x 300 m parcelby four people in four hours.
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Proposed Uses of the CrEAM
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1. Quantify and Track Ecosystem Quality
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0 50 100 150 200 250 300Composite score
Num
ber
of c
ells
1992 results
Hypothetical 2000 results
AB
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2. Prioritize
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3. NEPA Reviews
Location of airport32
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4. Targeting
low diversitylow sustainabililty
high diversitylow sustainability
high diversityhigh sustainability
low diversityhigh sustainability
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Texas Environmental Resource Stewards
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Primary Collaborators
Charles Maurice & Mary WhiteCritical Ecosystems Team
Amy Mysz Robert Beltran & John SchneiderPesticides Program Gt. Lakes Nat. Program Office
Mike Gentleman Lawrence Lehrman Water Division Office of Information Services
Brenda Jones Dan MazurSuperfund Division Waste Management Program
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