Palaeoenvironmental proxies indicate long-term development of agro-pastoralist landscapes in Inner Asian mountains

A growing body of archaeological research on agro-pastoralist populations of the Inner Asian mountains indicates that these groups adapted various systems of mobile herding and cultivation to ecotopes across the region from as early as 5000 BP. It has been argued that these adaptations allowed the development of flexible social-ecological systems well suited to the long-term management of these mountain landscapes. At present, less attention has been paid to examining the long-term ecological legacy of these adaptations within the sedimentary or palaeoenvironmental record. Here we present sediment, palynomorph and charcoal data that we interpret as indicating agro-pastoralist environmental perturbations, taken from three cores at middle and high altitudes in the Kashmir Valley at the southern end of the Inner Asian mountains. Our data indicate spatially and temporally discontinuous patterns of agro-pastoralist land use beginning close to 4000 BP. Periods of intensification of upland herding are often coincident with phases of regional social or environmental change, in particular we find the strongest signals for agro-pastoralism in the environmental record contemporary with regionally arid conditions. These patterns support previous arguments that specialised agro-pastoralist ecologies across the region are well placed to respond to past and future climate deteriorations. Our data indicating long-term co-evolution of humans and landscape in the study area also have implications for the ongoing management of environments generally perceived as “pristine” or “wilderness”.

Shock and Conflict in Social-Ecological Systems: Implications for Environmental Governance

In this paper, we present a framework for the analysis of shock and conflict in social-ecological systems and investigate the implications of this perspective for the understanding of environmental governance, particularly its evolutionary patterns and drivers. We dwell on the distinction between shock and conflict. In mapping the relation between shock and conflict, we invoke a different potentiality for altering rigidity and flexibility in governance; different possibilities for recall, revival and trauma; and different pathways for restructuring the relation between governance, community and environment. Shock and conflict can be both productive and eroding, and for each, one can observe that productivity can be positive or negative. These different effects in governance can be analyzed in terms of object and subject creation, path creation and in terms of the dependencies recognized by evolutionary governance theory: path, inter-, goal and material dependencies. Thus, shock and conflict are mapped in their potential consequences to not only shift a path of governance, but also to transform the pattern of self-transformation in such path. Finally, we reflect on what this means for the interpretation of adaptive governance of social-ecological systems.

Importance and Utilization of Theory-Based Evaluations in the Context of Sustainable Development and Social-Ecological Systems

Numerous challenges confront the task of evaluating sustainable development—its complex nature, complementary evaluation criteria, and the difficulty of evaluation at the nexus of human and natural systems. Theory-based evaluation, drawn from critical realism, is well suited to this task. When constructing a program theory/theory of change for evaluating sustainable development, concepts of socioecological systems and coupled human and natural systems are useful. The chapter discusses four modes of inference and the application of different theory-based evaluation approaches. It introduces the CHANS (coupled human and natural systems) framework, a holistic, analytical framework that is useful in evaluating such complex, social-ecological systems and resonates with the challenging elements of sustainable development evaluation.

A comparative study of small-scale fishery supply chains’ vulnerability and resilience to COVID-19

The COVID-19 pandemic and response has significantly disrupted fishery supply chains, creating shortages of essential foods and constraining livelihoods globally. Small-scale fisheries (SSFs) are responding to the pandemic in a variety of ways. Together, disruptions from and responses to COVID-19 illuminate existing vulnerabilities in the fish distribution paradigm and possible means of reducing system and actor sensitivity and exposure and increasing adaptive capacity. Integrating concepts from literature on supply chain disruptions, social-ecological systems, human wellbeing, vulnerability, and SSFs, we synthesize preliminary lessons from six case studies from Indonesia, the Philippines, Peru, Canada, and the United States. The SSF supply chains examined employ different distribution strategies and operate in different geographic, political, social, economic, and cultural contexts. Specifically, we ask (a) how resilient have different SSF supply chains been to COVID-19 impacts; (b) what do these initial outcomes indicate about the role of distribution strategies in determining the vulnerability of SSF supply chains to macroeconomic shocks; and (c) what key factors have shaped this vulnerability? Based on our findings, systemic changes that may reduce SSF vulnerability to future macroeconomic shocks include: diversification of distribution strategies, livelihoods, and products; development of local and domestic markets and distribution channels; reduced reliance on international markets; establishment of effective communication channels; and preparation for providing aid to directly assist supply chains and support consumer purchasing power.

Multiple drivers and extreme events collapse social-ecological systems sooner

The world’s ecosystems are undergoing unprecedented changes due to the impact of climate change and local human activities. A major concern is the possibility of tipping points where ecosystems and landscapes change abruptly to undesirable states. We consider what happens to the timing of tipping points when current stresses strengthen whilst systems experience additional stresses and/or extreme events. We run experiments on four mathematical models that simulate tipping points in lake water quality, the Easter Island community, the Chilika lagoon fishery, and forest dieback. We show that the strongest impacts occur under increasing levels of primary stress, but additional and more extreme stresses in all four models bring the tipping points significantly closer to today. Translating the results to the real world underlines the need for humanity to reduce damaging disturbances and global warming, and to be vigilant for signs that natural systems are degrading more rapidly than previously thought.