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How can we help the planet work for us?
A brief overview of ecosystem services
Dr. Jeremy Brooks School of Environment & Natural Resources Tools for Measuring Sustainability - Professional Development Workshop Environmental Policy Initiative, The Ohio State University
Biodiversity Loss
Biodiversity Loss
http://wwf.panda.org/about_our_earth/all_publications/living_planet_report/living_planet_report_graphics/lpi_interactive/ Rockstrom et al. 2009 Nature
http://www.nytimes.com/interactive/2012/06/01/opinion/sunday/are-we-in-the-midst-of-a-sixth-mass-extinction.html
Nearctic
Neotropical
Palearctic
Afrotropical
Indo-Pacific
(Dirzo et al. 2014 Science)
Defaunation
“The loss of species and populations of wildlife as well as local declines in abundance of individuals”
(Dirzo et al. 2014 Science)
Nearctic
Neotropical
Palearctic
Afrotropical
Indo-Pacific
(Dirzo et al. 2014 Science)
“Focus on extinction…is important, but it has blinded us to the effects of population declines in common species that may have a bigger impact on ecosystem function”
Gatson and Fuller (2008)
Defaunation
McCauley et al. (2015) - Science
Dirzo et al. 2014 Science
� 50% - 67% of major biomes converted to agriculture by 1990
� More cropland converted 1950-1980 than from 1700-1850
� 20% of coral reefs lost, 20% degraded, and 35% of mangroves lost by 2000
Land degradation
What are the consequences of these changes?
Dirzo et al. 2014 Science
Dirzo et al. 2014 Science
Ecosystem Services
Ecosystem: a co-existing set of species and their habitat, characterized by a particular climatic regime, physical characteristics, and the species present
Ecosystem processes/functioning: interactions among species and the non-living parts of the environment that entail transfers, transformation and storage of energy and materials
Ecosystem services: the results of ecosystem processes that confer benefits on human society
President’s Council of Advisors on Science and Technology (2011) Sustaining Environmental Capital: Protecting Society and the Economy
Forests & Trees Global & Local Benefits
Forests & Trees Global & Local Benefits
Carbon sequestration Climate regulation Food, timber, fiber Recreation, aethetics, awe
Forests & Trees Global & Local Benefits
Carbon sequestration Climate regulation Food, timber, fiber Recreation, aethetics, awe
Temperature regulation Air quality regulation
Psychological benefits
Regional
Pollination/ food production
Food provision Flood control Water purification Recreation Cultural value
VERY Local: - Digestive
health - Immune
system function
- Weight
regulation
Microorganisms & Microbiomes
Specific examples: Whale Poop!
Boost fisheries Climate regulation
Bring iron to surface “fertilize” oceans, stimulate phytoplankton growth
Absorbs CO2
Specific examples: Coastal flood protection
Hurricane Katrina
Superstorm Sandy
Green Infrastructure in Salisbury, Massachussets
� Major coastal floods in 2005, 2006, 2007
� Restoring tidal flows - Dam deconstruction, culvert replacement, streamflow enhancement
� Flood protection, improved water quality, climate change mitigation, aesthetic improvements
http://www.mass.gov/eea/docs/dfg/der/pdf/eco-services-summary-ma-der.pdf
Not all “services” are benign
Comberti et al. 2015 Global Environmental Change
How do we protect/manage the ecosystems that are functioning well? How can we restore ecosystems that have lost key functions/services? How can we enhance critical ecosystem services?
Biodiversity & Ecosystem Services
Biodiversity & Ecosystem Services Scientific consensus:
� Impact of BD loss rivals other drivers of environmental change
Cardinale et al. (2014) - Nature
Biodiversity & Ecosystem Services Scientific consensus:
� Impact of BD loss rivals other drivers of environmental change
� BD loss reduces capture of resources, production of biomass, cycling of nutrients
Cardinale et al. (2014) - Nature
Biodiversity & Ecosystem Services Scientific consensus:
� Impact of BD loss rivals other drivers of environmental change
� BD loss reduces capture of resources, production of biomass, cycling of nutrients
� BD increases stability of ecosystem functions over time
Cardinale et al. (2014) - Nature
Biodiversity & Ecosystem Services Scientific consensus:
� Impact of BD loss rivals other drivers of environmental change
� BD loss reduces capture of resources, production of biomass, cycling of nutrients
� BD increases stability of ecosystem functions over time
� Functional traits of organisms more important than specific organisms (impact of extinctions depends on which biological traits are gone, not just which species)
Cardinale et al. (2014) - Nature
Biodiversity & Ecosystem Services Scientific consensus:
� Impact of BD loss rivals other drivers of environmental change
� BD loss reduces capture of resources, production of biomass, cycling of nutrients
� BD increases stability of ecosystem functions over time
� Functional traits of organisms more important than specific organisms (impact of extinctions depends on which biological traits are gone, not just which species)
� Higher levels of BD are needed to maintain multiple, simultaneous services
Cardinale et al. (2014) - Nature
Biodiversity & Ecosystem Services Scientific consensus:
� BD loss reduces capture of resources, production of biomass, cycling of nutrients
� BD increases stability of ecosystem functions over time
� Functional traits of organisms more important than specific organisms (impact of extinctions depends on which biological traits are gone, not just which species)
� Higher levels of BD are needed to maintain multiple, simultaneous services
� Impact of BD loss is non-linear; change accelerates with species loss
Cardinale et al. (2014) - Nature
Biodiversity & Ecosystem Services
� BD directly related to, or influences, provisioning and regulating services
� Services are often regulated by multiple underlying functions (e.g. carbon sequestration depends on photosynthesis, biomass production and decomposition rates)
� Ecosystems deliver multiple services, so pay attention to tradeoffs (e.g. Afforestation to increase carbon sequestration may reduce water supplies)
Cardinale et al. (2014) - Nature
� ~60% of ecosystem services are being degraded or used unsustainably (e.g., capture fisheries, water supply/purification, regulation of air quality, regulation of climate)
� The use of two services (capture fisheries and fresh water) is well above sustainable levels even at current demands
Cardinale et al. (2014) - Nature
� Optimizing ecosystems for certain provisioning services…has greatly simplified their structure, compositioning and function. Simplification has enhanced some services but reduced others
How might declines in ecosystem services impact businesses?
� Could lead to increased regulatory constraints
� Risks to reputation and brand image if ecosystem services are threatened
� Affect supply chains - increase in costs of important inputs
� Increased vulnerability of assets to natural hazards
� Increase in conflict and corruption in areas facing scarcity of ecosystem services.
Modified from MEA - Opportunities and Challenges for Business and Industry (2005)
Opportunities for businesses
� New markets, product opportunities for addressing ecosystem service scarcities
� Enhance image, reputation, political capital and brand value for proactive management
� Cost and operational advantages from early recognition and action to address ecosystem service scarcity
Modified from MEA - Opportunities and Challenges for Business and Industry (2005)
Thank you!
(and some foreshadowing..)
Indirect drivers:
Population growth
Economic growth
Socio-political factors (terrorism)
Cultural factors (medicinal value)
Technological change