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The study of social-ecological systems (SES) has been significantly shaped by insights from research on complex adaptive systems (CAS). We offer a brief overview of the conceptual integration of CAS research and its implications for the advancement of SES studies and methods. We propose a conceptual typology of six organizing principles of CAS based on a comparison of leading scholars’ classifications of CAS features and properties. This typology clusters together similar underlying organizing principles of the features and attributes of CAS, and serves as a heuristic framework for identifying methods and approaches that account for the key features of SES. These principles can help identify appropriate methods and approaches for studying SES. We discuss three main implications of studying and engaging with SES as CAS. First, there needs to be a shift in focus when studying the dynamics and interactions in SES, to better capture the nature of the organizing principles that characterize SES behavior. Second, realizing that the nature of the intertwined social-ecological relations is complex has real consequences for how we choose methods and practical approaches for observing and studying SES interactions. Third, engagement with SES as CAS poses normative challenges for problem-oriented researchers and practitioners taking on real-world challenges.

In recent years, social-ecological systems (SES) have emerged as a prominent analytical framing with which to investigate pressing sustainability issues associated with the Anthropocene era. Despite the growth of SES research, the lack of a delineated set of methods commonly contributes to disorientation for those entering into a field where methodological pluralism is the norm. We conduct a review of SES research, focusing particularly on methods used in this field. Our results reflect the rapid growth in SES research relative to other publications in relevant subject areas, and suggest a maturation of the field. Whilst institutions investigating SES have been mostly based in the global north, focal SES has been more globally distributed, although key regions, especially island regions, remain poorly studied. Key problems addressed in the studies related to policy, trade, conservation, adaptation, land use change, water, forests, sustainability, urban problems, and governance and institutions. We identified 311 methods, which we grouped into 27 method categories that can serve as a guide to SES research methods for newcomers to the field. We also performed an exploratory assessment of the ability of these methods to account for key features of SES as complex adaptive systems. We found that methods do better at accounting for the relational and context-dependent nature of SES, and least well with complex causality. Our study highlights the plurality of methods used in SES research, and helps highlight key areas in need of further methodological development.

Remote sensing tools have been long used to monitor landscape dynamics inside and around protected areas. Hereto, scientists have largely relied on land use and land cover (LULC) data to derive indicators for monitoring these dynamics, but these metrics do not capture changes in the state of vegetation surfaces that may compromise the ecological integrity of conservation areas’ landscapes. Here, we introduce a methodology that combines LULC change estimates with three Normalized Difference Vegetation Index-based proxy indicators of vegetation productivity, phenology, and structural change. We illustrate the utility of this methodology through a regional and local analysis of the landscape dynamics in the Cerrado Biome in Brazil in 2001 and 2016. Despite relatively little natural vegetation loss inside core protected areas and their legal buffer zones, the different indicators revealed significant LULC conversions from natural vegetation to farming land, general productivity loss, homogenization of natural forests, significant agricultural expansion, and a general increase in productivity. These results suggest an overall degradation of habitats and intensification of land use in the studied conservation area network, highlighting serious conservation inefficiencies in this region and stressing the importance of integrated landscape change analyses to provide complementary indicators of ecologically-relevant dynamics in these key conservation areas.

Protected areas (PAs) remain central to the conservation of biodiversity. Classical PAs were conceived as areas that would be set aside to maintain a natural state with minimal human influence. However, global environmental change and growing cross-scale anthropogenic influences mean that PAs can no longer be thought of as ecological islands that function independently of the broader social-ecological system in which they are located. For PAs to be resilient (and to contribute to broader social-ecological resilience), they must be able to adapt to changing social and ecological conditions over time in a way that supports the long-term persistence of populations, communities, and ecosystems of conservation concern. We extend Ostrom's social-ecological systems framework to consider the long-term persistence of PAs, as a form of land use embedded in social-ecological systems, with important cross-scale feedbacks. Most notably, we highlight the cross-scale influences and feedbacks on PAs that exist from the local to the global scale, contextualizing PAs within multi-scale social-ecological functional landscapes. Such functional landscapes are integral to understand and manage individual PAs for long-term sustainability. We illustrate our conceptual contribution with three case studies that highlight cross-scale feedbacks and social-ecological interactions in the functioning of PAs and in relation to regional resilience. Our analysis suggests that while ecological, economic, and social processes are often directly relevant to PAs at finer scales, at broader scales, the dominant processes that shape and alter PA resilience are primarily social and economic.

Digital participatory mapping improves accessibility to spatial information and the way in which knowledge is co-constructed and landscapes co-managed with impoverished communities. However, many unintended consequences for social and epistemic justice may be exacerbated in developing country contexts. Two South African case studies incorporating Direct-to-Digital participatory mapping in marginalized communities to inform land-use decision-making, and the ethical challenges of adopting this method are discussed. Understanding the past and present context of the site and the power dynamics at play is critical to develop trust and manage expectations among research participants. When employing unfamiliar technology, disparate literacy levels and language barriers create challenges for ensuring participants understand the risks of their involvement and recognize their rights. The logistics of using this approach in remote areas with poor infrastructure and deciding how best to leave the participants with the maps they have co-produced in an accessible format present further challenges. Overcoming these can however offer opportunity for redressing past injustices and empowering marginalized communities with a voice in decisions that affect their livelihoods.

Views that protected area (PA) expansion relies predominantly on land purchased by government are increasingly being challenged. The inclusion of privately owned PAs (PPAs) in national conservation strategies is now commonplace, but little is known about their long‐term persistence and how it compares to that of state‐owned PAs. We undertook the first long‐term assessment of the dynamics of a national system of terrestrial PPAs, assessing its growth, as well as its resilience to downgrading, downsizing, and degazettement (PADDD). Between 1926 and 2018, 6.2% of all private nature reserves established in South Africa were degazetted, compared to 2.2% of state‐owned nature reserves. Privately owned PA growth exceeded that of state‐owned PAs. Trends in PA establishment differed between privately owned and state‐owned PAs, reflecting different legislative, political, and economic events. Our findings highlight the value of enabling legislative environments to facilitate PPA establishment, and demonstrate the potential of PPAs as a long‐term conservation strategy.

The inclusion of the knowledge and perspectives of Indigenous peoples and local communities (IPLC) in global science-policy processes are increasingly being mandated. This is indicative of the recognition of their expertise and worldviews to inform social and ecological decisions. The IPBES Values Assessment (VA) explicitly highlighted the necessity for a nuanced engagement of different actors while undertaking valuation for decisions related to nature. In this paper we further reflect on the findings of Chapter 6 of the VA that focused on operationalizing diverse values approaches in policy. We examine how IPLC are consulted and their values included in sectoral and cross-sectoral policies interlinked with biodiversity. We specifically share IPLC experiences of the IPBES process based on personal reflections of a participating Indigenous scholar. Apart from emphasizing the pitfalls of excluding diverse IPLC values of nature from decision making, our review also discusses how IPLC perspectives are represented within global forums, and particularly in IPBES processes . Our analysis reveals that meaningful IPLC inclusion pertains to representation of knowledge (mind) and of active participation and agency to bring their networks into the discourse (body). While highlighting some major deficiencies of the current decision-making practices (e.g., lack of pluralistic and inclusive processes, human and financial resources, or culturally sensitive processes) that preclude the full and effective inclusion of IPLC, we offer promising approaches, specifically engaging reflexivity and learning, that can address these deficiencies and move toward ensuring higher representation of IPLC by and for themselves.

The expansion of wildlife ranching has been broadly linked to conservation benefits, job creation, and economic contributions. However, a more nuanced understanding of the socioeconomic contributions of wildlife ranching accounting for the enterprise diversity in the sector remains a major limitation to assessing its potential to contribute to sustainable development. We assessed several important socioeconomic contributions of diverse wildlife-based business models, defined by their main revenue-generating activities, within the South African wildlife ranching industry, and the financial viability of these models. Owners and managers of privately-owned wildlife ranches and conventional agricultural farms (for comparative purposes) were interviewed in the Eastern Cape (112 ranches; 24 farms) and Limpopo provinces (152 ranches; 4 farms). We used a hierarchical clustering analysis to delineate six wildlife ranching business models. These included three more specialized models: ecotourism, trophy hunting, and wildlife breeding, and three more mixed models: mixed hunting (i.e., both meat and trophy hunting), mixed wildlife-agriculture, and trophy hunting-game meat. In general, ecotourism-focused ranches employed more people in total and per hectare (median = 23 jobs; 0.008/ha), and a higher proportion of women and skilled employees (41% and 45% of employees, respectively) than the other ranching models (median = 7–21 jobs; 0.002–0.005/ha) and conventional agriculture (median = 12 jobs; 0.004/ha). Trophy hunting-focused ranches employed the second highest number of people per hectare (0.006) although on average, a third of these jobs were seasonal. Trophy hunting ranches tended to be more profitable (median profit margin = 33%) than ecotourism (−10%), wildlife breeding (0%) and mixed-hunting (12%) ranches, though ecotourism ranches showed very high variability (interquartile range = −32% to 14%). These findings advance our understanding of the distinct socioeconomic contributions of diverse wildlife ranches, which benefits policy discourse and implementation surrounding the industry, promoting improved industry sustainability and inclusive growth.

Private land conservation areas (PLCAs) have become critical for achieving global conservation goals, but we lack understanding of how and when these areas respond to global pressures and opportunities. In southern Africa, where many PLCAs rely on trophy hunting as an income‐generating strategy, a potential ban on trophy hunting locally or abroad holds unknown consequences for the future conservation of these lands. In this study, we investigate the consequences of a potential trophy hunting ban in PLCAs in two biodiversity hotspots in South Africa's Eastern and Western Cape provinces. We used semistructured interviews with PLCA managers and owners to elicit perceived impacts of an internationally imposed trophy hunting ban on conservation activities in PLCAs, and to probe alternative viable land uses. The majority of interviewees believed that both the economic viability of their PLCA and biodiversity would be lost following a hunting ban. Owners would primarily consider transitioning to ecotourism or livestock farming, but these options were constrained by the social‐ecological context of their PLCA (e.g., competition with other PLCAs, ecological viability of farming). Our results suggest that a trophy hunting ban may have many unintended consequences for biodiversity conservation, national economies, and the livelihoods of PLCA owners and employees. Along with similar social‐ecological studies in other areas and contexts, our work can inform policy decisions around global trophy hunting regulation.