ecosystem services, global change and the role of ... · ecosystem services, global change and the...
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Ecosystem services, global change and the role of mainstream ecologists
Dave Raffaelli BES/YESI meeting
University of York 8th-9th April 2013
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How does she manage without a Swiss Army knife and a woolly hat?
Oh god, he’s even got the beard…..
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The Ecosystem Approach
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The Ecosystem Approach
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Boreal Ecosystem Wealth Accounting System (BEWAS)
Natural Capital Accounts Land Accounts Ecosystem Service Accounts
Natural Capital Stocks and Flows
Ecosystem Functions Economic Values Economic Values
Biological Resources - forests, wetlands, peatlands, fish and wildlife, protected spaces
Soil Resources Mineral Assets - oil, gas, coal
Waste Production - emissions to air, land and water
Atmospheric and climate stabilisation, disturbance avoidance, water stabilisation, water supply, erosion control, sediment stabilisation, soil formation, nutrient cycling, waste treatment, pollination, biological control, habitat, raw materials, genetic resources, recreation, cultural use.
National Resource Accounting Anielski and Wilson (2006)
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0 250 500
number of papers published
2010
1990
1980
1970
2000
origins and gestation of modern ecosystem services concept
ecosystem services in decision-making
ecosystem services in mainstream science agenda
Key initiatives TEEB (2007) Stern (2006) MEA (2005) MDG (2000) Daily (2007) Constanza (2007) GBA (1993) Rio (1991) WCED (1987) WRI (1982) Meadows (1972) Hardin (1968)
Raffaelli & White (in press)
The rise of Ecosystem Services
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What can mainstream
ecologists offer?
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Stocks: the ecosystem structure and processes and links to the abiotic environment.
Flows: outcomes from the functioning of ecosystems of significant value (benefits) to human society.
Here’s what: capital stocks and service flows
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Key questions for ecologists to answer
Flows of ecosystem services
Natural Capital Stock
1. What are the relationships between capital stocks and flows of services?
2. How will future global drivers affect stocks and flows?
3. What tools and metrics can be developed to measure trends in stocks and flows?
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Putting the system back into Ecosystem
Point Barrow, Alaska, from Worthington (1975)
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Putting the system back into Ecosystem
Point Barrow, Alaska, from Worthington (1975)
stocks and flows are the stuff of ecosystem ecology
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wheat grain
capital inputs
nutrients water
organic matter biodiversity
irrigation rain
solar energy
pesticides
fertiliser
Production of wheat
Systems framework linking stocks and flows: unpacking the “stock-box”
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Wheat growing in a field (units ?)
Soil nutrients (N, P, K, etc.) mg/100g soil
Soil water (% or …)
Soil Organic Matter (% or g/kg soil)
Soil fauna (biodiversity) (e.g. worms/m2)
Soil pH (pH units)
Soil structure (e.g. bulk
density, g/m3)
Rain (mm/day)
Irrigation (mm/day)
Fertiliser input (kg/ha/yr)
Bedrock nutrients (N, P, K, etc.) mg/100g
Weathering (mg/100g/yr)
Capital inputs (e.g. Harvesting machinery)
Pesticides (units ?)
Users of wheat for food products e.g. Bread, etc.
Beneficiaries/users
Water uptake (mm/day)
Nutrient uptake (mg/yr)
Solar energy for photosynthesis (W/m2/day)
Soil temperature
(deg C)
Harvested wheat grain
(t/ha)
Valuation: Market prices
The fine detail……. From Laurence Jones et al in prep.
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Why has systems ecology been neglected?
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Systems ecology has unfamiliar concepts
The holistic approach was seen as “blasphemous…..and not to be trusted in a world where reductionism and small scale biology held rein” (Brown et al. 2004).
Ecosystems do work They are goal directed Exergy, System Overhead, Ascendancy Windows of Vitality, Emergy………
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Systems ecology also loves horrendo-grams
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shellfish, bait, water purification
angling, food
bird-watching
bait, nutrient cycling
wildfowling, bird-watching
nutrient cycling, de-toxification
But, stocks and flows can be readily captured
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5
5
10
10
number of trophic levels
linka
ge d
ensi
ty
What effect do trade-offs of services have on the system?
Ulanowicz’ Window of Vitality
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Typified by Cedar Creek and
BioDEPTH grassland projects:
1. Create plots with different numbers of plant species
2. Measure ecosystem function (process) in each plot
Reductionist approaches: Biodiversity and Ecosystem Functioning
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Reductionist approaches: The Ecotron at Imperial College
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Reductionist approaches: The Mudotron at Aberdeen
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Extending BEF experiments to ecosystem services
From Brad Cardinale et al. 2012
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But just doing the science isn’t enough: Ecologists must engage with other disciplines Ecological science’s voice needs to be heard
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environmental decision making
After Kerry Turner (in press)
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Balance sheet 1 economic analysis
• Individualism and self-interest motivation • Economic Cost-Benefit Analysis • Distributional effects: actual compensation • Behavioural economics: social networks, etc. • Group dialogue before individual valuation • Green national income accounts • Comprehensive wealth concepts
environmental decision making
After Kerry Turner (in press)
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Balance sheet 1 economic analysis
Balance sheet 2 regional and local
impact analysis
• Individualism and self-interest motivation • Economic Cost-Benefit Analysis • Distributional effects: actual compensation • Behavioural economics: social networks, etc. • Group dialogue before individual valuation • Green national income accounts • Comprehensive wealth concepts
• Local policy impact: structural unemployment • Local economic multipliers • Symbolic and cultural asset loss • Social capital loss
environmental decision making
After Kerry Turner (in press)
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Balance sheet 1 economic analysis
Balance sheet 2 regional and local
impact analysis
Balance sheet 3 multi-criteria
methods
• Individualism and self-interest motivation • Economic Cost-Benefit Analysis • Distributional effects: actual compensation • Behavioural economics: social networks, etc. • Group dialogue before individual valuation • Green national income accounts • Comprehensive wealth concepts
• Local policy impact: structural unemployment • Local economic multipliers • Symbolic and cultural asset loss • Social capital loss
• Collectivism and limited self-interest • Shared values elicited through group discussions • Stakeholder forums • Social justice and ethical rules • Maintenance of natural capital stock • Safe minimum standards • Precautionary principle
environmental decision making
After Kerry Turner (in press)
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Balance sheet 1 economic analysis
Balance sheet 2 regional and local
impact analysis
Balance sheet 3 multi-criteria
methods
• Individualism and self-interest motivation • Economic Cost-Benefit Analysis • Distributional effects: actual compensation • Behavioural economics: social networks, etc. • Group dialogue before individual valuation • Green national income accounts • Comprehensive wealth concepts
• Local policy impact: structural unemployment • Local economic multipliers • Symbolic and cultural asset loss • Social capital loss
• Collectivism and limited self-interest • Shared values elicited through group discussions • Stakeholder forums • Social justice and ethical rules • Maintenance of natural capital stock • Safe minimum standards • Precautionary principle
Safe, simple and slow
Dangerous, complex and dynamic
environmental change context
environmental decision making
After Kerry Turner (in press)
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The things one has to do to save the
planet
engagement is everything
OK, but the beard will have to go