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Ecosystem Services, Biodiversity, and Property Values in an Urbanizing Region Kevin Bigsby, Chris Clary, Nyeema Harris, George Hess, Megan Lawler, Melissa McHale, Alicia Raimondi, Shawn Shifflett, Neal Wisenbaker
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(World Population Prospects 2007, United Nations) Introduction US Population Growth
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Introduction Land Use Change
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(Foley et al. 2005, Science) Introduction Impacts of land use change
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Biophysical Approach: Does managing for ecosystem services in a highly urbanizing region inherently encompass areas of conservation concern? Valuation Approach: Will the monetary value of ecosystem services outcompete property value in a rapidly developing area? Introduction Research Questions
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Study Area T RIANGLE R EGION, N ORTH C AROLINA Introduction Study Area
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BIODIVERSITY: HABITAT QUALITY AND RARITY CARBON STORAGE CARBON SEQUESTRATION RESERVIOR HYDROPOWER PRODUCTION WATER PURIFICATION: NUTRIENT RETENTION AVOIDED RESERVIOR SEDIMENTATION MANAGED TIMBER PRODUCTION CROP POLLINATION InVEST Methods
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2001 Land Cover Methods
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URBAN AREAS : M ODERATELY HIGH AGRICULTURAL AREAS L OW W ETLANDS AND FORESTS : H IGH C ARBON S TORED (B IOPHYSICAL ) Methods Ecosystem Service
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N UTRIENT R ETENTION (B IOPHYSICAL ) Methods Ecosystem Service H IGH V ALUES T HROUGHOUT S PATIALLY H ETEROGENEOUS
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P OLLINATION (B IOPHYSICAL ) Methods Ecosystem Service URBAN AREAS L OW F ORESTS LOCATED NEAR A G AREAS H IGH
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Methods Stacked Ecosystem Service Carbon Nutrient Retention Pollination ALL SERVICES
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V ERTEBRATE SPECIES RICHNESS Methods Biodiversity Metric 1:
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E LEMENT OCCURRENCES Methods Biodiversity Metric 2:
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S IGNIFICANT N ATURAL H ERITAGE A REAS Method Biodiversity Metric 3:
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Methods Ecosystem Service Quartiles F ORESTS LOCATED NEAR A G AREAS AND W ETLANDS IN F OURTH Q UARTILE URBAN AREAS IN FIRST QUARTILE
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V ERTEBRATE SPECIES RICHNESS 98%96% 99%100% Modeled species richness does not vary significantly according to the Ecosystem service quartile. NO CONCORDANCE Result Biodiversity Metric 1:
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Element Occurrences Completeness – n (%) of total occurrences Representation – n (%) of unique occurrences Ecosystem services capture to identity, but not the spatial distribution of element occurrences MODERATE CONCORDANCE E LEMENT OCCURRENCES Result Biodiversity Metric 2:
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S IGNIFICANT N ATURAL H ERITAGE A REAS Ecosystem services do not efficiently protect SNHAs LOW CONCORDANCE Result Biodiversity Metric 3:
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Interpretations varied depending on the biodiversity metrics Overall, low concordance between biodiversity and ecosystems services Win-win locations do exist in a urbanizing region Using an ecosystem approach to conserve biodiversity is not efficient Summary Ecosystem Services & Biodiversity
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Biophysical Approach: Does managing for ecosystem services in a highly urbanizing region inherently encompass areas of conservation concern? Valuation Approach: Will the monetary value of ecosystem services outcompete property value in a rapidly developing area? Part II Ecosystem Service Valuation
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Ecosystem Services Carbon Sequestration Water Purification: Nutrient Retention Crop Pollination InVEST Methods How are we comparing values? Property Value vs. Multiple Ecosystem Service Value 20 year values with a 1% discount rate Theme There are reasons to establish contracts early for ecosystem service conservation.
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