Forecasting Resilience of Social Ecological Landscapes
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Transcript of Forecasting Resilience of Social Ecological Landscapes
Forecasting Resilience of Social Ecological Landscapes
Some Tools to Help Us Understand This Thing Called “Sustainability”
Lilian Alessa, Andrew Kliskey, Mark AltaweelResilience and Adaptive Management Group, Water and Environmental Research Center, University of
Alaska; Center for Social Dynamics and Complexity, Arizona State University, University of Chicago,
Argonne National Lab
A Few Sustainability Myths
1. Sustainability is about the environment.2. Consumer choices and grassroots activism
works.3. There is no single critical piece of the
sustainability challenge.
Lemonik, 2009. Princeton, New Jersey.
Humour Me…..• Sustainability is possibly one of the most
misunderstood words in common usage.• Social structure, particularly agent types,
are powerful determinants of emergent SES patterns.
• The environment has become synonymous with “green” but we are more of a STS than an SES (something I’d like you to jot down for your Immersion Experience tomorrow).
Water is the Critical Piece• Entering the “Century of Water”• Most issues depend on water availability,
distribution and/or quality.• Transitions from common pool resource to
trade commodity.• Several “solutions” are not possible
unless water is factored in.
Trends in Water Resources
Also see White, Hinzman, Alessa, JGR Biogeosciences, 2007
• Not just availability but also quality, we can only “clean” so well.
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Dealing with Future Change Requires a Paradigm Shift in “Science”
Growing evidence that technological interventions alone are not effective and may drive critical changes in water use patterns. --UN Commission on Sustainable Development (1995).1. Our understanding of the social dynamics in social ecological systems is poor.2. Our incorporation of scale is sloppy.3. Our treatment of SES is oversimplified.These may represent some of our greatest vulnerabilities to effectively coping with change.
ArcticRIMS_UNH
Scale
Alessa et al. 2009. In Press, Sustainability
Screen shot of SES types paper
How Could We Possibly Fail?• Scale• Messy Social Ecological Systems• Underestimation of Social Dynamics • Hubris: we will engineer a solution or
‘sustainability as a hobby’
Desire,Means
Technology
Perceptions,Values
Exposure
NetworksLearning
Vulnerable Resilient
Resources
Disasters/Conflicts
Policies
Gaining an Edge:The Tools• Social Ecological Hotspots Mapping.• The Arctic Water Resources Vulnerability
Index (AWRVI).• Forecasting Environmental Resilience of
Arctic Landscapes (FERAL).
MapAssessModel
Social Ecological Systems Hotspot Mapping
• Takes social and biophysical values and uses GIS to map the coupled social ecological landscape.
• Gives us information about where specific dynamics exist.
• Was highlighted as innovative science by NSF in Spring 2008.
Screen shot of paper
Screen shot of paper
Adapting to Change: AWRVI
• The Arctic Water Resources Vulnerability Index: AWRVI (“Ar-Vee”).
• Tool to assess status of water resources at the watershed scale.
• Unifies western and traditional knowledge systems.• Can be used to determine resilience and best
strategies for development.
First and only of its kind for high latitudes and local scales.
Environmental Vulnerability Indices
• EVI: United Nations Environment Programme (2001).
• UN Commission on Sustainable Development (1995).
• Global Commission on Fresh Water Resources (2004).
• Water recognized as single-most important variable in rapid change.
Emergent toolsagent-based models
(ABM)
Agent Based Models• Specify the rules of behavior of individuals
(agents) as well as rules of interaction• Simulate many agents using a computer
model• Explore the consequences of the agent-
level rules on the population as a whole• “Simple” models to produce complex
behaviors“How could drops of water know themselves to be a river? Yet the river flows on”
--Antoine du Sainte-Exupery
Agents and Systems• agents have connections to each other, and
form a system and operate in an environment with feedbacks
• agents behave autonomously thus they each have their own parameters (data) and behaviors
• systems change once the agents affect the threshold in a significant way
Agent Based ModelsAre not• An attempt to perfectly reproduce reality (usually)
Are• Are a tool to gain intuition about the system of interest
without needing to know all of the details• A tool to run “experiments” which cannot be performed
in real life• A tool to generate and test hypotheses about what is
occurring• A tool to refine data collection foci
Big Questions• What drives the human hydrological
system? • How do societies ‘overshoot’ their
resources (both social and physical)?• How can we learn to avoid this fate?
(Should we? If so, why?)• Move beyond rhetoric.
Source: Alessa , Kliskey, and Altaweel. 2009, In Press, Sustainability
Desire,Means
Technology
Perceptions,Values
Exposure
NetworksLearning
Vulnerable Resilient
Resources
Disasters/Conflicts
Policies
Forecasting Environmental Resilience of Arctic Landscapes (FERAL)
Developing “Real” Rules• Too often, ABMs rely on ‘artificial’ rules
(e.g., games).• Or ….”what ifs”.• It is critical that rules be derived from the
messy, real world.• Humans are not logical but they are
predictable.
"Man is a complex being; he makes the deserts bloom and lakes die."— Gil Stern
Developing Real Rules• There are three rules of thumb to
successfully developing rule sets for ABM.1. Observe your system to the point of intimacy.2. Establish colleagues in it who will assist you
with field work and data collection.3. Include modelers at the outset, not once you
think it would be “nice” to model.
Screen shot of JASSS 2 paper
Your Immersion Experience• Tomorrow you will go out into three “SES”
(two being primarily “STS”).• As yourself “who/what are the objects in the
landscape” (e.g., people, terrain, interventions, others?).
• For each of these objects, what would you need to know about them to develop meaningful rule sets?
Applying Agent-Based Modeling
Source: Altaweel, Alessa, and Kliskey, JASSS, Forthcoming
Values held toward water
drinkingwashing and cleaningsubsistence uses
travelrecreationbiological
cultural activitiesMost important value of water
18-39 years 40-59 years 60-99 years
Source: Alessa , Kliskey, Williams. Society & Natural Resources. 2008.
Current Social ABM in
FERAL
Step 1: Assess water source selection process with observed trends and determine consequences of water selection choices.
Integrated Models: Example Runtime Output 2
River Discharge
Quantity change belief
Maximum
Mean
How People Make Choices: Why We Need to Know This
People make decisions according to their life experiences,social relationships, and perceptions of what is around them.
Different people have different influence and goals that influencesother people around them: three agent types, alpha, beta and gamma.
A person’s ideas
Person’s decision
The thought process
Social influence and behavior affects water use
Decision Making: Divisions in the Decision Process
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Plot points show agents.Red=Reject
Blue=Accept
Different agent types affectwhether decisions made resultIn collective or individualbenefits
Results show cliquesforming and social position
of those rejectingan idea.
Decision Making: Representation in Social Space
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Social network representation of
relationships.
Over a few ticks, more people agree to accept the initial idea. However, this often occurs if leaders agree initially and coordinate theirefforts.
Black=RejectLight Blue=Accept
25Negative Relationships
Changing Viewpoints: Effect on Decision Making
Group vs. Individual goals
FERAL: White Mountain Scenario
agent
White Mountain
Fish River
Municipal Water sourceWorld Wind 3D visualization view
10-Year Scenario: Travel To River
agents
White Mountain
Fish River
Agents concentrate at river sources nearest to White Mountain.
10-Year Scenario: Tracking Total Movements
Aggregate agent movements during each Time tick.
Concentration of movements over entire simulation and time.
Municipal and non-municipal sources fluctuate seasonally.
Colors in water sources indicate relative levels, bluecolors indicate high volume, while red is lower volume.
agents accessing the municipal source house icon varies in size based
on population levels
10-Year Scenario: Travel To River
agents
White Mountain
Fish River
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In: Alessa, Kliskey, Busey, Hinzman, White. Global Environmental Change, 2008.
Evolution of Water Use on the Seward Peninsula
Take Home Messages
• Many of the challenges in sustainability are not ‘fixable’ using technologies or good will.
• Agents drive the system from the bottom up and some dynamics simply aren’t pretty.
• A powerful approach to understanding consequences is to use agent based models.
• ABMs allow the unpredictable outcomes of simple choices and changes in patterns of use to be visualized in virtual worlds.
Acknowledgements• The RAM Group at UAA• My colleagues at the International Arctic Research Center,
and the Institute for Northern Engineering, UAF • My colleagues at the Center for Social Dynamics and
Complexity, Arizona State University• Fabrice Renaud, Head, Environmental Assessment and
Resource Vulnerability Section, United Nations University• Volker Grimm, Director, Center for Environmental Research,
Leipzig-Halle, Germany. • The National Science Foundation.