2. Background
• Earth is dynamic
– Change is inevitable
• Scientific inquiry has allowed us to
better understand our world
• However, there will always be surprises
– The world is inherently unknowable
2
"The only true wisdom is in knowing you know nothing."
"The fool doth think he is wise, but the
wise man knows himself to be a fool."
-William Shakespeare
-Socrates
“To know that you do not know is the
best. To pretend to know when you do
not know is a disease.”
-Lao-Tzu
3. What is Resilience?
• The ability of a system to perform its
desired function after a shock
• Equilibrium Resilience
– Maintain steady-state
• Engineering Resilience
– Time for system to return to normal
• Ecosystem Resilience
– How much a system can be disturbed
3
Earth in Balance?
4. Are Stability and Balance Good Things?
• Two key (and faulty) assumptions:
– There is an ideal stable state or
situation that we have to maintain
– We know better than nature
4
Seawalls and Sand Loss
(Pilkey et. al., 1996)
(Star Wars)
5. History of Resilience Thinking
• Ecologist C.S. ‘Buzz’ Holling ‘discovered’
the notion of resilience in the 1970s
• Major outbreak of spruce budworm
– Destroyed balsam fir trees in Eastern Canada’s
mature forests; yet left young trees alone
– Six major outbreaks since 1700s
• Canadian government reacted with
pesticide spraying
– Caused destruction of predator / budworm
relationship
– Whole forests on verge of outbreak
– Locked-in to using increased levels of pesticides
• Budworm outbreaks acted as natural
rejuvenator of spruce-fir forests
5
Spruce-Fir Forest
(Wikimedia Commons)
Spruce Budworm
(Natural Resources Canada)
6. Resilience Thinking
• Resilience Thinking is based on two premises:
– Humans and nature are part of a strongly couple and coevolving
“social-ecological” system
– Systems do not respond to change in a linear, predictable fashion
6
7. Adaptive Cycle
• Growth or exploitation (r)
– New opportunities and available resources
exploited
– Pioneers/opportunists successful
• Conservation (K)
– Energy stored, material accumulates
– Increasing dependence on existing
structure
– Increasingly stable/rigid, loss of flexibility
• Collapse or release (omega)
– Resources released
– Connections break
• Reorganization (alpha)
– Destruction opens up new options
– Novelty, invention, experimentation
possible (i.e. evolution)
7
Adaptive Cycle
(resalliance.org)
Panarchy
(resalliance.org)
8. Panarchy
• Panarchy – A hierarchical set of
linked/nested adaptive cycles, and
their cross scale effects of different
levels of a system
• Smaller and faster adaptive cycles are
areas for experimentation
• Playing / experimenting with larger
and slower adaptive cycles can have
deep, long-term effects (e.g.
anthropogenic climate change)
8
Scales and Panarchy
(Ecology and Society)
9. Basins of Attraction
• Regions in which a system tends to
remain
• More than one basin of attraction
for any given system
• Focuses on regime shifts and
tipping points, which can tip a
system into another state which
is difficult or impossible to recover
from
• “How much shock can a system absorb before it transforms into
something fundamentally different?” (Folke, 2009)
9
Ball and Cup Heuristic of
System Stability
(Environmental Governance)
12. Dealing with Climate Change
• Holocene has been a period of flourishing human civilization
• Temperature unlikely to stay the same even if no anthropogenic effects
• Impossible to predict future
• However, we can learn, adapt, and evolve through experimentation in
smaller, faster scales in the panarchy
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Temperature Fluctuations over Human History
(SeedMagazine.com)
13. Dealing with Climate Change (cont’d)
12
• Climate change is a potential large-scale
source of change in many ecosystems
– Great potential to change stability landscapes
• Resilience Thinking can be used to help
systems maintain essential functions - guided
transition
– Humans are part of nature, evolving along with it
• Will require adaptive form of governance
– Experimentation at local level
– No ‘one-size fits all’ solutions
– Increased participation; not just rely on “experts”
– Increased information flow
– Bolstered social networks / social capital
14. Key Take-Aways
• Resilience Thinking is a form of systems thinking
– Everything is connected
• Resilience Thinking embraces uncertainty and accepts risk as inevitable
• Resilience is not just about absorbing disturbance
– Also about the capability to self-organize and the capacity to learn, adapt and
transform
• Resilience Thinking encourages a greater awareness of complex systems,
their interacting parts, and the ability to cope with changes without the
need to accurately predict what a change will bring
• Embrace change, nothing is static
– The key is not equilibrium but fluctuation and change
– There is no sustainable optimal state, change will happen
– Life is full of surprises; Embrace change and dance with it, no-one's in control
11
15. Further Reading
• Stockholm Resilience Centre (http://www.stockholmresilience.org/)
• Resilience Alliance (http://www.resalliance.org/)
• Ecology and Society (www.ecologyandsociety.org)
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16. References
• Carpenter, SR, Folke, C., Scheffer, M., & Westley, F. (2009). Resilience: accounting for the noncomputable.
Ecology & society, 14(1). Retrieved from http://su.diva-portal.org/smash/record.jsf?pid=diva2:432532
• Carpenter, Steve, Walker, B., Anderies, J. M., & Abel, N. (2001). From Metaphor to Measurement:
Resilience of What to What? Ecosystems, 4(8), 765–781. doi:10.1007/s10021-001-0045-9
• Folke, C. (2009, December). How much disturbance can a system withstand ? With roots in ecology and
complexity science , Resilience Thinking offers new ways to turn crises into catalysts for innovation . Seed
Magazine.com, 40–42.
• Holling, C. S. (1973). Resilience and Stability of Ecological Systems. Annual Review of Ecology and
Systematics, 4, 1–23. Retrieved from http://www.jstor.org.ezproxy.hpu.edu/stable/info/2096802
• Lin, B. B., & Petersen, B. (2013). Resilience , Regime Shifts , and Guided Transition under Climate Change :
Examining the Practical Difficulties of Managing Continually Changing. Ecology and Society, 18(1).
• Rockström, J., & Steffen, W. (2009). Planetary boundaries: exploring the safe operating space for humanity.
Ecology and Society, 14(2). Retrieved from http://www.ecologyandsociety.org/vol14/iss2/art32/main.html
• Walker, BH, Anderies, J., Kinzig, A., & Ryan, P. (2006). Exploring resilience in social-ecological systems
through comparative studies and theory development: introduction to the special issue. Ecology and
Society, 11(1). Retrieved from http://www.ibcperu.org/doc/isis/8587.pdf
• Walker, Brian, & Holling, C. (2004). Resilience, Adaptability and Transformability in Social--ecological
Systems. Ecology and Society, 9(2). Retrieved from http://profesores.usfq.edu.ec/fdelgado/Ecologia
Humana/articulosdigitales/Walker.pdf
Notas do Editor
Resilience at one scale does not necessarily mean resilience at all scales.
http://www.ecologyandsociety.org/vol7/iss1/art14/figure2.gif
“basins of attraction” – region in state space in which a system tends to remain
Crossing a threshold may move a system into a new state, but identifying such thresholds is very difficult (Shcheffer et al. as cited in Lin & Petersen, 2013)
“…social-ecological systems have a number of thresholds at different scales and in both the ecological and socioeconomic domains.” (BH Walker et al., 2006)
“There is ample evidence from local to regional-scale ecosystems, such as lakes, forests, and coral reefs, that gradual changes in certain key control variables (e.g., biodiversity, harvesting, soil quality, freshwater flows, and nutrient cycles) can trigger an abrupt system state change when critical thresholds have been crossed” (Carpenter et al. 2001, Folke et al. 2004, Hughes et al. 2007, Scheffer 2009 as cited in Rockström & Steffen, 2009)
“stability landscapes” – the different basins of attraction that a system may occupy and the boundaries that separate them
http://www.resalliance.org/images/key_concepts/fig1a.jpg
“stability landscapes” – the different basins of attraction that a system may occupy and the boundaries that separate them
http://www.resalliance.org/images/key_concepts/fig1a.jpg
Image source: Folke, C. (2009, December). How much disturbance can a system withstand ? With roots in ecology and complexity science, Resilience Thinking offers new ways to turn crises into catalysts for innovation . Seed Magazine.com, 40–42.
Resilience is ultimately about adapting, it is evolution
Image source: http://www.mrwallpaper.com/Viva-La-Evolution-wallpaper/ and http://www.bullishink.com/2012/04/30/poem-tango-at-midnight/
Resilience Network – “…an ephemeral research group that produced four edited volumes, each of which explored different interdisciplinary connections.”
Resilience Alliance – “The Resilience Alliance, an international consortium of 15 research groups that grew out of the Resilience Network. One specific objective of the group is to bring together ecologists, economists, political scientists, mathematicians, social scientists, and archaeologists to begin an interdisciplinary assessment of the ideas developed in previous works.”