allen adaptive management for ecosystems
DESCRIPTION
69th SWCS International Annual Conference “Making Waves in Conservation: Our Life on Land and Its Impact on Water” July 27-30, 2014 Lombard, ILTRANSCRIPT
Lessons from places at the threshold
Adaptive Management of Working Agricultural Landscapes for Ecosystem
Services
Craig Allen, Christo Fabricius and the Resilience Alliance Working Group on Agricultural Resilience
What is the problem?
Sub‐Saharan Africa
Global Harvest Initiative 2012
Pretty et al. 2011. Int J Agric Sust, 9:1, 5‐24
Two clashing trends
Maize yields
Mouths to feed
Livestock, crops, livelihoods , governance and culture are integrated
– ‘Agri‐Culture’
• The ability to absorb disturbances• To be changed and then to re‐organise and still retain the same basic structure and ways of functioning
• As resilience declines the magnitude of a shock from which it cannot recover gets smaller and smaller.
resilience
resilience, per se, is neither ‘good’ nor ‘bad’
undesirable states of systems can be very resilient (dictatorships, saline landscapes)
a system state that once was desirable can become ‘undesirable’ through changes in external conditions (context)
“A regime shift involving alternate stable states occurs when a threshold level of a controlling variable in a system is passed, such that the nature and extent of feedbacks change, resulting in a change of direction (the trajectory) of the system itself.”
Identified regime shifts related to agriculture and the hydrological cycle
EVAPORATION & LEAF AREA
Wet savanna ‐> dry savanna
Cloud forests ‐> Woodland
Forest ‐> savanna
Monsoons ‐> No monsoon
Gordon, et al. 2008
RUN‐OFF QUANT, QUAL
Eutrophication
Hypoxic zones
River channel change
INFILTRATION, MOISTURE
Salinisation
Vegetation patterns
Soil structure
Atmosphere
Aquatic
Soil
Cundill & Fabricius 2008.
The slippery slope of resilience loss
• most losses in resilience are unintended consequences of processes beyondthe scale of focus
• in particular, failure to recognize cross‐scale and cross‐domain feedbacks
Traps
• A trap is an undesirable state from which ‘escape’ is difficult
• a Trap is characterized by • low potential for change• rigidity and, because of the extremely degraded state, • a high resistance to change.
• The system has become vulnerable• Sources of novelty and innovation have been eliminated
Allison, H. E. and R. J. Hobbs. 2004. Ecology and Society 9(1): 3.
Time
Resilience
Resilience: the amount of disturbance a system can absorb
CONSU
MPT
ION ‐meat &
fuel
(rich old millions)
FOOD PRODUCTION (poor young billions)
High
High
Low
A safe operating space for the world’s food systems?
Rockström, J. et al. 2009. Planetary boundaries: exploring the safe operating space for humanity. Ecology and Society 14(2): 32. [online] URL: http://www.ecologyandsociety.org/vol14/iss2/art32/
Transformation• Transformability: “The capacity to create afundamentally new system when ecological, economic,or social (including political) conditions make theexisting system untenable”
www.resalliance.org
Walker, B., C. S. Holling, S. R. Carpenter, and A. Kinzig. 2004. Resilience, adaptability and transformability in social–ecological systems. Ecology and Society 9(2): 5.
Transformability
•preparedness to change• getting beyond the state of denial
•options for change• new ‘trajectories’ ‐ emerge from support for experiments,
novelty, continual learning
•capacity to change• levels of capitals (including ‘social capital’), higher‐scale
support ‐ governance
Capacity to make use of ‘windows of opportunity’
Folke et al. 2009 In: Principles of Ecosystem Stewardship: Springer
Social‐ecological systems framework
Goulburn Broken Catchment Management Plan, Australiahttp://www.gbcma.vic.gov.au
With participation and empowerment at every level and in every sphere
Adaptive Management (and Adaptive Governance)
• A method to experimentally probe systems to determine key uncertainties, with experiments where it is ok to fail.
• An approach that “…views policy as hypotheses: that is, most policies are really questions masquerading as answers. Because policies are questions, then management actions become treatments, in an experimental sense."
Ecological Diversity
Ecological Variability
Ecological Modularity
Social Diversity
Social Modularity
Acknowledging slow variables
Tight Feedbacks
Social Capital
Innovation
Overlapping Governance
Ecosystem Services
Assessing tradeoffs among axes of resiliencein working agricultural landscapes
Water quality
Water Quantity
Biodiversity
Invasion Resistance
Soil development
Food productionCultural
Nutrient Control
CarbonSequestration
Predation
Pollination
Assessing tradeoffs among ecosystem services
Resilience resources:
‐www.resalliance.org‐information and news‐ workbooks (free, downloadable)
‐Ecology and Society‐www.ecologyandsociety.org
‐Twitter: @christofab@resilienceSci