– whichfor canassessing be fairly ATitle framework long quite a resilience in and SoEtake 2011upreporting DECEMBER 2011 bit of space a and then even more space etc PRODUCED BY [Consultants Name and/or Organisation] DECEMBER 2011 PRODUCED BY Steven Cork FOR the Department of Sustainability, Environment, Water, FOR the Department of Sustainability, Environment, Water, Population and Communities Population and Communities ON BEHALF OF the State of the Environment 2011 Committee ON BEHALF OF the State of the Environment 2011 Committee Citation Cork S. A framework for assessing resilience in SoE 2011 reporting. Report prepared for the Australian Government Department of Sustainability, Environment, Water, Population and Communities on behalf of the State of the Environment 2011 Committee. Canberra: DSEWPaC, 2011. © Commonwealth of Australia 2011. This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from the Commonwealth. Requests and enquiries concerning reproduction and rights should be addressed to Department of Sustainability, Environment, Water, Populations and Communities, Public Affairs, GPO Box 787 Canberra ACT 2601 or email public.affairs@environment.gov.au Disclaimer The views and opinions expressed in this publication are those of the author and do not necessarily reflect those of the Australian Government or the Minister for Sustainability, Environment, Water, Population and Communities. While reasonable efforts have been made to ensure that the contents of this publication are factually correct, the Commonwealth does not accept responsibility for the accuracy or completeness of the contents, and shall not be liable for any loss or damage that may be occasioned directly or indirectly through the use of, or reliance on, the contents of this publication. Cover image Frog in rainforest near Cairns, QLD Photo by Australian Heritage Commission Australia ■ State of the Environment 2011 Supplementary information ii Preface This report was developed for the Department of Sustainability, Environment, Water, Population and Communities to help inform the Australia State of the Environment (SoE) 2011 report. As part of ensuring its scientific credibility, this report has been independently peer reviewed. The Minister for Environment is required, under the Environment Protection and Biodiversity Conservation Act 1999, to table a report in Parliament every five years on the State of the Environment. The Australia State of the Environment (SoE) 2011 report is a substantive, hardcopy report compiled by an independent committee appointed by the Minister for Environment. The report is an assessment of the current condition of the Australian environment, the pressures on it and the drivers of those pressures. It details management initiatives in place to address environmental concerns and the effectiveness of those initiatives. The main purpose of SoE 2011 is to provide relevant and useful information on environmental issues to the public and decision-makers, in order to raise awareness and support more informed environmental management decisions that lead to more sustainable use and effective conservation of environmental assets. The 2011 SoE report, commissioned technical reports and other supplementary products are available online at www.environment.gov.au/soe. Australia ■ State of the Environment 2011 Supplementary information iii A framework for assessing resilience in SoE 2011 reporting A FRAMEWORK FOR ASSESSING RESILIENCE IN SOE 2011 REPORTING Introduction Resilience is a term used in virtually all disciplines and fields of human endeavour (van Opstal 2007; Cork et al. 2008, Cork 2010). It has long been a key concept in engineering (Holling 1996). It has become especially popular recently in business and economics and in mental and physical health, as academics and practitioners are being asked to address perceptions of growing risks and threats and an increase in the severity and frequency of “surprise events” (Starr et al. 2003; van Opstal 2007). Across these disciplines and others, the word “resilience” is used in widely different ways and is frequently not defined or explained, even within disciplines. Where “sustainability” was been a prime focus for policy relating to interactions between the environment, society and economies for many years, the concept of resilience is being introduced as a way to ensure that ecological and social systems are able to find their way towards sustainability (whatever societies decide that is in the future) in the face of potential shocks, some of which can be partly anticipated and some of which will come as surprises. The strength of the concept is the fact that most people understand resilience is about the ability of something to respond to disturbance. The weakness is that most people hold fuzzy ideas on what is the source of resilience or how we should manage for it. For example, policy makers around the World have seen that building and/or maintaining the ability of ecological, social or economic systems to cope with shocks is a perfect strategy for preparing for uncertain futures but they have generally not thought very deeply about what such a strategy might consist of. The idea of building the ability to cope with change is not new but the depth of thinking about how to operationalise the idea is focussing thinking about issues like adaptability, capacity building, community engagement, adaptive governance, critical resource needs, functional diversity, and thresholds or “tipping points” to a different, more integrated level. Leading resilience researchers are quick to point out that resilience science is not a panacea; that what is most important is the questions it poses and encourages us to address that other wise can be overlooked. As the field of resilience science has developed it has become apparent that there are many challenges in implementing its lessons in the way we manage our systems. For example: resisting change is more likely to make a system vulnerable to shocks than make it resilient; few systems “bounce back” to exactly the same state they were in before a shock; assessing the resilience of a system is more complex than measuring a single biophysical parameter (e.g., soil acidity), because resilience is relative and contextual on the scale you are looking at and the questions you are posing (eg, what it is we want to be resilient, and what it needs to be resilient to); and, resilience is not always desirable (e.g., some of the most resilient systems are ones we would like to change, such as some farming systems that are unsustainable in the long term but are made Australia ■ State of the Environment 2011 Supplementary information 1 A framework for assessing resilience in SoE 2011 reporting temporarily resilient by new technologies and favourable market forces (Allison & Hobbs 2004). What has become clear as researchers have investigated ways of operationalising resilience theory is that it will rarely be possible or advisable to develop rigid prescriptions for actions to manage resilience or to identify fixed targets for the optimal amount of resilience. It is, however, possible to identify general principles for adaptively managing systems to build or reduce resilience. Definition of resilience Different disciplines have developed different definitions of resilience. The following definition is taken from Walker et al. (2004). It recognises the important lesson from a range of research on ecological systems and coupled social-ecological systems, that resilient systems don’t remain unchanged but that change occurs within limits. “Resilience is the capacity of a system to experience shocks while retaining essentially the same function, structure and feedbacks, and therefore identity.” Often, people’s perception of resilience is more akin to the concept used by engineers. Engineers define resilience as the speed with which a system can return to some equilibrium state. Social-ecological resilience is more about a system retaining the capacity to return to an equilibrium state. The rate of return is not the issue. Box 1 compares engineering resilience and social-ecological resilience. This is a key concept when applying the findings of resilience research to SoE assessments. Box 1: The nature of social-ecological resilience Social-ecological resilience is the capacity of a (social-ecological) system to absorb disturbance and re-organize so as to retain essentially the same function, structure and feedbacks – to have the same identity. Put more simply, resilience is the ability to cope with shocks and keep functioning in much the same kind of way. A key word in this definition is “identity”. It is both important and useful because it imparts the idea that a farm, a region or a community (all of which are social-ecological systems) can exhibit quite a lot of variation, be subjected to disturbance and cope, without changing their “identity” – without becoming something else. Social-ecological systems are self-organizing systems. We can control bits of the system but the system will then self organise around this change. Other bits will change in response to this control. Sometimes we have a good idea how the system will respond to our actions, sometimes it’s difficult to predict, and sometimes the response comes as a complete surprise. Most of the time, the system can absorb the changes it experiences, be it human management or some form of external disturbance like a storm. The system absorbs the disturbance, re-organizes and keeps performing in the way it did – it retains its identity. Australia ■ State of the Environment 2011 Supplementary information 2 A framework for assessing resilience in SoE 2011 reporting There are limits to how much a self-organizing system can be changed and still recover. Beyond those limits it functions differently because some critical feedback process has changed. These limits are known as thresholds. When a self-organizing system crosses a threshold it is said to have crossed into another “regime” (also called a “stability domain”) of the system, and now behaves in a different way – it has a different identity. Thresholds occur in ecosystems and in social systems. In social systems they are more often referred to as “tipping points”. Tipping points might be changes in fashion, voting patterns, riot behaviour, or markets. Thresholds are often not easy to identify. Most variables in a system don’t even have them; that is, they show a simple linear response to the change in underlying controlling variables and at no point exhibit a dramatic change in behaviour. For the ones that do have thresholds it’s really important to know about them, though achieving this is not always an easy process. Grassy rangelands that sometimes turn into shrub thickets offer a good example of what can happen when a threshold is crossed. If grazing pressure reduces the amount of grass and causes shrub density to exceed some threshold amount, there then isn’t enough grass to carry a fire. Fire kills many shrub species, but not grass. Without fire the woody shrubs take over as the dominant vegetation. This further suppresses grass growth. The feedback from grass to shrubs via fire has changed, and even if grazing pressure is then reduced the system stays in the woody shrubdominated state for a very long time before shrubs die and the grass returns in sufficient amounts to allow fire to again play a role. And that delay might be enough to bankrupt the pastoralist. The rangeland is the system. A grassy rangeland represents one regime. A shrubby rangeland represents an alternate regime. The controlling variable is the amount of grass cover and the threshold is the point along this controlling variable at which the system begins to behave differently (ie, on one side of the threshold it has the identity of a grassland, on the other it has the identity of a shrubland). Another way that the resilience of social-ecological systems has been conceptualised is using the ball in a cup analogy (Figure 1), sometimes referred to as a ball in a basin. The ball is the current state of the system and the basin or cup is the set of states the ball can exist in. Australia ■ State of the Environment 2011 Supplementary information 3 A framework for assessing resilience in SoE 2011 reporting Figure 1: The ball and cup (pebble and pothole) analogy of resilience (see text for explanation) Within a basin (where the system has essentially the same structure and function, and the same kinds of feedbacks) the ball tends to roll to the bottom. In systems terms, it tends towards some equilibrium state. In reality, this equilibrium is constantly changing due to changing external conditions; however the ball will always be moving towards it. The net effect is that one never finds a system in equilibrium (i.e., with the ball at the bottom of the basin). The shape of the basin is always changing as external conditions change and so is the position of the ball. So the system is always tracking a moving target and being pushed off course as it does so. From a resilience perspective the question is how much change can occur in the basin and in the system’s trajectory without the system leaving the basin. Beyond some limit (the edge of the basin), there is a change in the feedbacks that drive the system’s dynamics, and the system tends towards a different equilibrium. The system in this new basin has a different structure and function. The system is said to have crossed a threshold into a new basin of attraction – a new regime. These differences can have important consequences for society and so some basins of attraction are deemed ‘desirable’, while others are not. Why does resilience have to be so complex? The following sections expand on the definition discussed above and reveal insights from attempts to put the definition onto practice. Unfortunately, no matter how simple the adopted definition of resilience is, a number of complexities arise when applying it in practice. Table 1 summarises some of these complexities and why they are important Australia ■ State of the Environment 2011 Supplementary information 4 A framework for assessing resilience in SoE 2011 reporting Table 1: Some issues arising from practical applications of the concept of resilience and their implications Issue Need to be clear about what system we are talking about and what is valued about a system The needs to distinguish between specified and general resilience Links between social and ecological systems Distinctions between resilience and adaptability Adaptability and transformability Resilience is not always desirable Considering resilience requires a systems approach Resilience needs to be considered at multiple scales Implications It is easy to say we want “the system” to be resilient but we need to be clear what the system is (e.g., a farm, a landscape, a region, the natural resource management system or Australia’s system of government). This entails working with stakeholders in the system to determine the scales at which it works, its governance, its values that we want to be resilient (the resilience of what), the disturbances we want it to be resilient to, and its drivers and trends. Specified resilience is the resilience of some specified part of the system to a specified shock; a particular kind of disturbance. General resilience is the capacity of a system that allows it to absorb disturbances of all kinds, including novel, unforeseen ones, so that all parts of the system keep functioning as they were. When you prepare your system for a specific disturbance, in a sense you’re optimizing your capacity for a specific threat. In so doing, you may be eroding your system’s general capacity to absorb other kinds of disturbances. In other words, there is a trade off between specified and general resilience. Channelling all your efforts into one kind of resilience will reduce resilience in other ways. So it is necessary to consider both. The social, economic and biophysical domains that make up socialecological systems are linked. The interplay between thresholds and linkages between domains are critical to understanding the behaviour and resilience of self-organizing systems. Many of the problems associated with managing natural resources come down to the fact that our approaches don’t acknowledge these linkages. It is important to explain this distinction as a major sticking point in understanding resilience for many people is their need to understand how it related to adaptability. Resilience is an emergent property of the system: it’s a measure of how much disturbance the system can absorb before it changes its identity. Adaptability is the capacity of the system to manage resilience, to stop it crossing a threshold (or engineer a crossing back into a desired regime). Transformability is the capacity of a system to become a different system, to create a new way of making a living. It’s about changing the system when the existing system is no longer working for us and it’s not worth adapting. Adaptability is about sticking with the system you have. They are complementary processes – managers often need to transform a lower scale of system in order that a higher scale can remain resilient. (eg, portions of a catchment might change their enterprise in order that the broader catchment remains viable. Resilience, per se, is not “good” or “bad”. Undesirable states of systems can be very resilient. Rangelands choked by woody weeds, salinized catchments and military dictatorships can all be highly undesirable system states that are also highly resilient. Resilience is an emergent property of a complex adaptive system. Understanding and managing for resilience requires an engagement with the broader system, not just an understanding of its individual parts. While this is at first intimidating for some people, the aim of resilience thinking is to help stakeholders focus on the important dynamics of their system. Stakeholders cannot understand or successfully manage a system – any system, but especially a social-ecological system – by focusing on only one scale. Ignoring cross-scale effects is one of the most common reasons for failures in natural resource management systems – particularly those aimed at optimizing production. Australia ■ State of the Environment 2011 Supplementary information 5 A framework for assessing resilience in SoE 2011 reporting Self-organisation is a key to resilience Being resilient requires changing within limits – in fact, probing those limits. Holding a system in exactly the same condition erodes resilience because the capacity to absorb disturbance is based on the system’s history of dealing with disturbances. Resilience of what to what? To put the above definition of resilience into practice it is necessary to ask what are the essential “function, structure and feedbacks” of a system, and what “shocks” might they need to be resilient to. Thus the first question to be asked in a resilience analysis is “resilience of what to what?” (Carpenter et al. 2001). Note that some resilience researchers distinguish between specified resilience (resilience to challenges that are known or anticipated) and general resilience (ability to cope with a range of unspecified challenges). This distinction is discussed later. One way to address the “resilience of what” part of the question is to focus on sets of species and their relationships with the non-living environment, in which case a shift from a grassland to a shrub land might be seen as a change of identity. Another way to answer this question has been to identify a set of so-called “ecosystem services”. These are the benefits that humans get from ecological systems, including regulatory services, like regulation of water flows in rivers, regulation of water tables, regulation of pests and diseases and regulation of atmospheric composition; provisioning services, like provision of food, clean water, fibre, building material, pharmaceuticals; cultural services, like maintenance of spiritual, educational and recreational values; and supporting services, like maintenance of soil fertility, creation of soil and maintenance of genetic diversity (Daily 1997; Binning et al. 2001; Cork et al. 2001; Abel et al. 2003). The resilience of a system can only be considered in relation to what it might need to be resilient to (“resilience to what?”), which means that it is never possible to say whether a system has enough or more than enough resilience while there is uncertainty about what shocks it might receive. It is, however, possible to identify signs that resilience might be too low (for example, if characteristics known to contribute to resilience are declining below levels that appeared to be critical in relation to past shocks). Across much of Australia, there are reasons to believe that ecological and social resilience are in danger of falling below levels required to cope with known and expected shocks, let alone possible surprises (Walker and Salt 2006; Cork et al. 2008; Cork 2009; 2010). Specified versus general resilience In terms of the current state of any system, there are two complementary aspects of resilience – specified and general (Walker & Salt 2006). Specified resilience is the resilience of some specified part of the system to a specified shock. General resilience is the capacity of a system that allows it to absorb disturbances of all kinds, including novel, unforeseen ones. If all attention and actions are focused on managing for specified resilience, you may inadvertently be reducing resilience in other ways – resilience to novel “surprises”. Australia ■ State of the Environment 2011 Supplementary information 6 A framework for assessing resilience in SoE 2011 reporting The manager of a town in a fire prone area might make preparedness for fires a priority. (S)he might consider things like fire fighting capacity, knowledge of fuel loads, fire risk assessment and a raft of things specifically to do with being prepared for fires. But if this manager was asked to cope when an unknown disaster– it could be a disease outbreak, flood, earthquake, riot or something right out of left field; then the focus would be more about the general qualities of the town. What are its food reserves, diversity of skills to deal with different types of emergencies, levels of trust and the ability of the community to pitch in to help itself, distance from the nearest hospital, friends in high places who will mobilise resources to help when things get tough, and so on. These are all general qualities and they all relate to general resilience. Social versus ecological resilience Most of those researching resilience in ecological systems over the past few decades have been influenced by CS Holling and his ideas about adaptive cycles (Holling 1973; Figure 2). These cycles of resource capture and release, organisational complexity and rising and falling certainty were initially observed in ecological systems but collaboration between ecologists and social scientists has concluded that the same cycles occur in social systems. Indeed, much of the work of social scientists like Elinor Ostrom and Graeme Marshall on institutions for dealing with uncertainty (Ostrom 2002; Marshall 2010) have drawn on research on ecological resilience. Thus, in concept there are few major distinctions to be made between ecological and social resilience. In fact, the strong consensus among resilience researchers is that the resilience of social and ecological systems cannot, and should not, be considered independently as the two types of systems are almost always coupled and strongly influence one another. Figure 2: Simplified version of the adaptive cycle (adapted from Walker & Salt 2006) Adaptability and transformability Australia ■ State of the Environment 2011 Supplementary information 7 A framework for assessing resilience in SoE 2011 reporting Adaptability is the capacity of a social-ecological system to manage resilience – to avoid crossing thresholds, or to engineer a crossing to get back into a desired regime, or to move thresholds to create a larger safe operating space. Transformability is the capacity of a system to become a different system, to create a new way of making a living. An example comes from South Eastern Zimbabwe where, in the 1980s, ranchers transformed their cattle ranches to game hunting and safari parks when the livestock industry proved unviable. On the surface, it may appear there’s a tension between adapting and transforming. Should you adapt or transform? But the tension is resolved when you consider the system at multiple scales, because making the system resilient at a regional scale, for example, may require transformational changes at lower scales (Folke et al, 2010). Adapting and transforming are actually complementary processes. A good example of this is the current proposed change to water allocation in Australia’s Murray Darling Basin. Huge cuts in many sub-catchments have been identified as necessary for the basin as a whole to continue functioning – to retain its identity as an agricultural region. It will require transformational changes in a number of its irrigation areas, from irrigation farming to some other kind of agriculture. The process of transforming is never without pain. However, if transformation needs to take place, it’s better to do it sooner than later. The costs of delay can be extremely high. The three ingredients necessary for transformation are: the preparedness to change (as opposed to a state of denial); having the options for change (possible new “trajectories”); and the capacity to change (Transformative change needs support from higher scales, and also depends on having high levels of all capitals – natural, human, built and financial). The importance of resilience in landscapes A diversity of resources, functions and response types in ecosystems (and in social systems) is one the keys to being able to adapt to change. Figure 3 shows an old but good example of the importance of functional and species diversity in an ecosystem. The duplication of functions in common and uncommon species in this rangeland means that if conditions change and the common species can no longer thrive there is the chance for less common species to take over their role. This has been called “functional redundancy” and “response diversity”. It is essentially an insurance policy. Ecosystems with low response diversity can survive if conditions remain constant but are vulnerable to collapsing into different states if conditions change. Diversity is one factor that allows an ecosystem to keep functioning throughout periods of change without going through a threshold or “tipping point”. Thresholds occur Australia ■ State of the Environment 2011 Supplementary information 8 A framework for assessing resilience in SoE 2011 reporting because some of the important drivers of a system change slowly until they get to a point where a critical feedback changes and the system’s behaviour alters rapidly. For example, many lake systems flip into a different regime when too much phosphorus (a plant nutrient) enters the lake. A small increase in phosphorus (P) levels in the lake sediment pushes the system over a threshold and it begins to behave very differently. Due to changes in P solubility under changing oxygen concentrations in the water, the amount of P in the water jumps much higher (it’s very soluble under anaerobic conditions) and won’t come down till P in the sediment is much lower. Algal growth is stimulated and the lake goes from a clear water regime to a regime of algal blooms and dead fish. In a system like that depicted in Figure 3, slow changes in climate might cause subtle changes in the species composition of the system but major functional changes would not occur until the system had exhausted its redundancy. For example, when all the ‘A’ functions have been exhausted due to change the system may have crossed a resilience threshold losing its function, structure, feedbacks, and identity shifting it to an alternative state. Because humans tend to pay much more attention to rapid change than slow change, we are frequently caught off guard by threshold changes. Figure 3: Functional similarities between dominant and minor plant species in a savanna rangeland community in southwest Queensland. Columns are different species and patterns indicate similar functions (Walker et al. 1999). Insights from research and practice Research on what gives ecosystems and coupled social-ecological systems the ability to maintain their essential functions and identity in the face of disturbances has yielded insights that challenge aspects of natural resource policy and management but also offer clues to actions that can be taken to build and/or maintain resilience in social-ecological systems (Carpenter et al. 2001; Walker et al. 2004; Olsson et al. 2006; Walker & Salt 2006; Walker et al. 2009): It is not useful to think of resilience as resistance to change (resistance creates brittleness and vulnerability rather than resilience) There is a trade off between specified resilience (the resilience to specified disturbances) and general resilience (the capacity to absorb disturbances of all Australia ■ State of the Environment 2011 Supplementary information 9 A framework for assessing resilience in SoE 2011 reporting kinds). Channelling all your efforts into one kind of resilience will reduce resilience in other ways. So it is necessary to consider both Resilience is not always desirable, for example decision makers often want to change a system but its resilience works against change Resilience should be considered together with adaptability (the ability of a system to maintain its resilience by changing within limits) and transformability (the capacity to create a fundamentally new system when ecological, economic and/or social conditions make the existing system untenable) Ecosystems rarely, if ever, function in isolation from human social systems so considering the coupled systems is important Considering the dynamics of social-ecological systems is vital for understanding and managing resilience, especially considering where there is potential for change to build to a point where the system might suddenly flip into a different regime (i.e., pass through a threshold), because such thresholds define the limits of a system’s resilience Resilience should be considered at multiple scales above and below the scale of interest (e.g. the resilience of a landscape will be affected not only by processes occurring at that scale but also by processes occurring at a paddock, remnant scale or finer scale and processes occurring at catchment, regional, national and larger scales) Self organisation tempered by frequent perturbation increases the likelihood that a system will be resilient - controlling a system too much risks reducing resilience The three key requirements for general resilience are: Diversity (of functions, resources, skills, approaches etc); Modularity (connections that mean collapse of one part of a system won’t bring the whole system down); and Tight feedbacks (mechanisms by which information about change is gathered and transmitted through the system so that appropriate responses can be taken at appropriate scales and in a timely fashion Also important for general resilience are: Openness (the ease with which things like people, ideas and species can move into and out of your system) Reserves (natural, social and economic) Leadership, social networks and trust (sometimes referred to as social capital) Assessing resilience in an SoE context Resilience of what to what? To draw conclusions about how well a system might “experience shocks while retaining essentially the same function, structure and feedbacks, and therefore identity” it is necessary to be clear what those functions, structure and feedbacks are. Some essential biophysical functions, structures and feedbacks are obvious (e.g., a wetland will only remain a Australia ■ State of the Environment 2011 Supplementary information 10 A framework for assessing resilience in SoE 2011 reporting wetland if it retains certain characteristics). Other characteristics are less clear (e.g., does a forest that has lost its koalas still have the same identity as one that still has them). For native ecosystems that are primarily valued for their wildlife it might be enough to base a resilience assessment on the functions, structures and feedbacks that define the “health” of recognised biomes (e.g., wetland, grassland, shrubland, rainforest) as these characteristics underpin biodiversity. When dealing with native ecosystems that are valued for other services they provide to humans (e.g., pest control, erosion prevention, stream regulation in agricultural landscapes, cultural values in cultural landscapes, or amenity in and around built environments), however, assessment of whether essential functions, structures and feedbacks are maintained depends on knowing what is valued. This may or may not be known. As pointed out by Robert Joy, the key functions, structures and feedbacks of atmospheric systems are related to effects on human health and well being, and these effects are well defined. In some cases it will be possible to consider what a system needs to be resilient to (see “Assessing specified resilience”, below) but most systems will also need to be resilient to unknown pressures (see “Assessing general resilience”, below). Assessing specified resilience Specified resilience is the resilience of some part of the system to particular kinds of disturbance. Of most importance, it’s about whether a disturbance might push the system over a particular threshold where it changes the way it functions (e.g., stops producing grain or timber or providing habitat). Assessing specified resilience is about identifying known and possible thresholds between alternate states (or regimes) the system can be in. Thresholds occur on underlying, controlling variables that often change slowly relative to the variables managers are concerned about. For example, the variable of concern might be crop production and the controlling variable along which a threshold for crop production lies might be soil acidity. Because controlling variables often change slowly, the changes tend not to get noticed by managers, and so thresholds are often not factored in. The aim in attempting to assess specified resilience is to produce some form of representation of the system that shows possible thresholds and how they might interact with each other. Because self-organizing systems operate at different scales and in all three domains – social, economic and ecological (biophysical), thresholds can occur in each domain and at each scale. Australia ■ State of the Environment 2011 Supplementary information 11 A framework for assessing resilience in SoE 2011 reporting To begin with, it’s helpful to consider known thresholds and thresholds of potential concern. Then it’s a matter of attempting to construct simple conceptual models of how the system is operating. Finally, stakeholders might consider engaging experts and developing analytical models. Assessing general resilience The literature suggests that assessment of general resilience should include, at least, consideration of diversity, modularity, tightness of feedbacks, openness, reserves and leadership (Table 2). Table 2: Examples of considerations for assessing general resilience Resilience component Diversity Vulnerability of connections and networks (modularity) Tightness of feedbacks Openness Reserves Leadership and social capital Examples of assessment considerations Trends in diversity of genes, species, ecosystems, and landscapes in ecological systems and of skills, ideas, training opportunities, and institutions in social systems. Consider the structure and function of connections and processes in socialecological systems so that collapse of one part of the system does not cause collapse of other parts (includes connectivity of habitat in ecosystems, allocation of responsibilities for information gathering and sharing networks and environmental management, and overlap between institutions) Consider the nature of feedbacks, including the processes within ecosystems for natural population regulation, response to climate variability and change, response of fires and other perturbations, and processes within social systems for detection of change and initiation of action at appropriate time and spatial scales by appropriate people Processes to monitor, experiment and evaluate to learn, anticipate and develop shared mental understanding are important There is no “optimal” degree of openness. Its effects depend on how resilient or non-resilient the system is in other ways, and either extreme (too open or too closed) can reduce resilience. What trends are occurring? Is there any evidence (social or ecological) that the system is becoming (or is) too closed? In general, more reserves means greater resilience, and the trend to look for is often one of a loss of reserves, both natural (such as habitat patches, seedbanks), social (memory and local knowledge) and economic (levels of savings). Can you identify any reserves that have come into play in the past and are any of them changing? Leadership, social networks and trust are three, intertwined social attributes that emerge repeatedly from case studies of resilience as being important contributors to the “coping capacity” of a community. They are often referred to as “social capital”. Without them the response capacity of the socialecological system to disturbances is low. Can you identify any trends where these attributes are under threat? An SoE resilience report card Figure 4 illustrates how resilience might fit with other elements of SoE assessment, especially the elements of a DPRIR framework. Australia ■ State of the Environment 2011 Supplementary information 12 A framework for assessing resilience in SoE 2011 reporting Figure 4: Schematic representation of where resilience fits with other elements of SoE reporting. The elements of a DPSIR approach are shown as white boxes. It is proposed that reporting on resilience in the 2011 SoE report be under the following headings: Evidence of past resilience Preparedness for known or anticipated future pressures (i.e., specified resilience) Factors affecting potential capacity to deal with surprises (i.e., general resilience) Table 3 gives examples of what information might go into this assessment. Table 3: Examples of the sorts of issues that might be considered in developing a resilience assessment in the 2011 SoE Report Chapter Evidence of past resilience Preparedness for known or anticipated pressures Sorts of resilience questions to be asked Are there examples of how the “system” (e.g., biodiversity, land, inlands water, built environment, cultural heritage) has coped (or not) with pressures in the past? Past performance does not tell us whether the system is or is not resilient now, but it gives clues to what aspects of the system made it resilient or not and therefore we can draw some inferences about whether or not those elements are still in place. Examples: Soils might have been able to cope with floods in the past due to ground cover Animals in woodlands might have coped with foxes in the past due to the size of patches and the structural complexity of understorey Regulators might have been able to control pollutants in the atmosphere due to levels of staffing and certain legislation Cultural heritage might have been able to cope with population pressures because people were not so close to financial limits that cause them to use every bit of land available How much anticipation has been done about future pressures? Have potential thresholds been identified? How much preparation has been made? How well resourced and supported are those preparations? Examples: How much thinking has been done about future fire regimes and Australia ■ State of the Environment 2011 Supplementary information 13 A framework for assessing resilience in SoE 2011 reporting Factors affecting potential capacity to deal with surprises their potential effects on biodiversity, are there thresholds in climatic or other change that could see fire regimes change dramatically, what plans are being developed and are they adequately resourced and supported by the right people and institutions? How much thinking has been done about the impacts of population growth on cultural heritage, are there thresholds of population above which pressure on cultural heritage might escalate, what plans are being developed to cope with these pressures, and how well resourced are they in terms of funds and suitably trained people? What trends are evident in relation to the diversity and adequacy of key resources and might these be approaching critical thresholds? Are environmental and societal processes connected in ways that allow the necessary processes to continue of parts of the system fail? Are ecological and societal processes in place to collect and share relevant information about change and act on it as appropriate scales? Examples: Is there evidence that declining diversity of species, functions and habitats and/or the adequacy of landscape connections might be reaching (or have past) a point where recovery from unexpected pressures might be compromised? What is happening with respect to the diversity of research, skills and experience being brought to bear on understanding atmospheric processes and are these sufficient to allow early detection and action to address unexpected pressures on the atmosphere? Are governance arrangements in place to ensure that appropriate people are involved in monitoring for change and taking action early to prevent escalation of unexpected problems? References Abel N., Cork S., Gorddard R., Langridge J., Langston A., Plant R., Proctor W., Ryan P., Shelton D., Walker B. & Yialeloglou M. (2003) Natural Values: Exploring Options For Enhancing Ecosystem Services In The Goulburn Broken Catchment. CSIRO, Canberra, Australia Allison H. E. & Hobbs R. J. (2004) Resilience, adaptive capacity, and the "Lock-in Trap" of the Western Australian agricultural region. Ecology and Society 9, 3 [online], <http://www.gbcma.vic.gov.au/downloads/wshop_resilience_reading/resilience_west_ aust.pdf> Binning C., Cork S., Parry R. & Shelton D. (2001) Natural assets: An inventory of ecosystem goods and services in the Goulburn Broken catchment. CSIRO, Canberra, Australia Carpenter S. R., Walker B. H., Anderies J. M. & Abel N. (2001) From metaphor to measurement: Resilience of what to what? Ecosystems 4, 765-81 Cork S. ed. (2009) Brighter prospects: Enhancing the resilience of Australia. 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R., Walker B., Scheffer M., Chapin T., & Rockström J. (2010) Resilience thinking: integrating resilience, adaptability and transformability. Ecology and Society [online] URL: http://www.ecologyandsociety.org/vol15/iss4/art20/ Holling C. S. (1973) Resilience and stability of ecological systems. Annual Review of Ecology and Systematics 4, 1-23 Holling C. S. (1996) Engineering resilience versus ecological resilience. In: Engineering within ecological constraints (ed P. C. Schulze) pp. 31-44. National Academy Press, Washington, D.C Marshall G. R. (2010) Governance in a surprising world. In: Resilience and Transformation Preparing Australia for Uncertain Futures (ed S. Cork) pp. 49-56. CSIRO Publishing, Collingwood, Victoria, Australia Olsson P., Gunderson L., Carpenter S., Ryan P., Lebel L., Folke C. & Holling C. S. (2006) Shooting the rapids: navigating transitions to adaptive governance of socialecological systems. 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