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Humans have influenced global fire activity for millennia and will continue to do so into the future. Given the long-term interaction between humans and fire, we propose a collaborative research agenda linking archaeology and fire science that emphasizes the socioecological histories and consequences of anthropogenic fire in the development of fire management strategies today. Role for archaeology in fire science A collaborative research agenda Resolving collaborative challenges

We analyzed USDA Forest Service (Forest Service) employment data from 1995 to 2017, by race and ethnicity, gender, as well as race/ethnicity and gender, to assess progress towards the Forest Service’s goal of achieving a multicultural workforce that reflects the US population. We look at the trends by an employee’s level in the Forest Service and by branch of the Forest Service. Our data show an overall decrease in the workforce by nearly 20%, an increase in diversity in Forest Service leadership levels, little change in the percentage of employees in non-White racial/ethnic groups combined, the number of Black employees decreased, and the number of women in lower grades and in the National Forest System Deputy Area decreased. Comparison with the civilian labor force provides additional context. Implications are relevant beyond the Forest Service, including a risk of losing public trust and reduced agency effectiveness if a representative workforce is not achieved.

Climate change presents a novel and significant threat to the sustainability of forest ecosystems worldwide. The United States Forest Service (USFS) has conducted climate change vulnerability assessments for much of the 193 million acres of national forest lands it manages, yet little to no research exists on the degree to which management units have adopted considerations of climate change into planning or project implementation. In response to this knowledge gap, we piloted a survey instrument in USFS Region 1 (Northern region) and Region 6 (Pacific Northwest region) to determine criteria for assessing the degree to which national forests integrate climate-change considerations into their management planning and activities. Our resulting climate-change adaptation index provides an efficient quantitative approach for identifying where, how, and, potentially, why some national forests are making more progress toward incorporating climate-change adaptations into forest planning and management.

This article explores the changing relationships between the USDA Forest Service and 10 small, forest-based communities in the Northwest Forest Plan area in Washington, Oregon, and California. Interviews with 158 community members and agency personnel indicated that community member interviewees were largely dissatisfied with the agency’s current level of community engagement. Interviewees believed that loss of staff was the primary factor contributing to declining engagement, along with increasing turnover and long-distance commuting. Interviewees offered explanations for increasing employee turnover and commuting, including lack of housing, lack of employment for spouses, lack of services for children, social isolation, improving road conditions making long-distance commuting easier, agency incentives and culture, decreasing social cohesion among agency staff, unpaid overtime responsibilities, and agency hiring practices. Community member perceptions regarding long-term changes in community well-being and agency-community relationships were more negative than agency staff’s perceptions.

We present a high-resolution geostatistical analysis of prehistoric archaeological site locations and land use footprints for the South Carolina Piedmont of North America using archaeological survey data, multivariate logistic regression techniques, and fuzzy set theory. Our analysis uses archaeological site locations and generalizations about prehistoric economic systems to quantitatively model land use footprints and to test hypotheses derived from the archaeology of human-environment interactions. Specifically, we test the differential influence of landscape suitability and historical contingency as factors differentially influencing site location in immediate and delayed return economies. Our results highlight temporal variability in the influence of material factors (landforms and the residuum of previous occupations) on the selection of settlement and land use locations over the long term. We argue that our results indicate high potential for land use legacies beginning with the introduction of ceramic technologies. These landscape legacies were likely positive for human populations in that they improved the quality of ecosystems services and the reliability of provisioning.

Regional- and biome-scale paleoecological analyses and archaeological syntheses in the mountain landscapes of the western Pyrenees suggest that the Long Anthropocene began with agropastoral land use at the onset of the Neolithic. Historical and geographic analyses emphasize the marginality of the western Pyrenees and the role of enforced social norms exacted by intense solidarities of kin and neighbors in agropastoral production. Both are satisfying and simple narratives, yet neither offers a realistic framework for understanding complex processes or the contingency and behavioral variability of human agents in transforming a landscape. The Long Anthropocene in the western Pyrenees was a spatially and temporally heterogeneous and asynchronous process, and the evidence frequently departs from conventional narratives about human landscape degradation in this agropastoral situation. A complementary place-based strategy that draws on geoarchaeological, biophysical, and socio-ecological factors is used to examine human causality and environmental resilience and demonstrate their relationship with the sustainability of mountain landscapes of the western Pyrenees over medium to long time intervals.

The causes of increased wildfire risk and human exposure around the world vary geographically and across socioeconomic gradients as both wildfire risk and potential adverse social outcomes are contingent on the specific local context. Ultimately, there is no consistent explanation for what has led to extreme fire danger in a given location. Therefore this chapter does not focus on regional specifics but provides a broad overview of a range of factors and dynamics to consider in understanding the human—wildfire relationship based on insights gained from three fields of social science research: (1) natural hazards, which provides a framework for how societies and individuals perceive and respond to the wildfire hazard, (2) diffusion of innovations, which provides further guidance on factors that may influence adoption of fire mitigation measures, and (3) risk and crisis communication which provides insight into key dynamics to consider in effective outreach efforts.

Strategies for coping with normal wildfires are everywhere inadequate in the case of intense, fast-moving ones and much more in the face of extreme wildfire events (EWEs). After a detailed analysis of wildfires fatalities, the chapter proposes a new adaptive approach to cope with wildfires and possible actions to be undertaken before, during, and after a fire. The new approach is labeled BESAFE and synthesizes a holistic perspective in the actions to be undertaken by civilians and fire agencies in a collaborative way that can be easily adapted to the social and geographic context.

Extreme wildfires events (EWEs) represent a minority among all wildfires but are a true challenge for societies as they exceed the current control capacity even in the best prepared regions of the world and they create destruction and a disproportionately number of fatalities. Recent events in Portugal, Chile, Greece, Australia, Canada, and the USA provide evidence that EWEs are an escalating worldwide problem, exceeding all previous records. Despite the challenges put by climate change, the occurrence of EWEs and disasters is not an ecological inevitability. In this chapter the rationale of the definition of EWEs and the integration of potential consequences on people and assets in a novel wildfire classification scheme are proposed and discussed. They are excellent instruments to enhance wildfire risk and crisis communication programs and to define appropriate prevention, mitigation, and response measures which are crucial to build up citizens’ safety.

We detect transition to agropastoral land use in a mountain landscape by radiocarbon dating physical signatures (sedimentation rates, charcoal concentrations, magnetic susceptibility) of conversion from native forest to pasture contained within colluvial stratigraphic sections. Focus is on two study sites located on toeslopes directly beneath zero-order hollows draining several hectares in the commune of Larrau (Pyr�� Atlantiques, France) along the international drainage divide of the western Pyrenees. Sample sites maximize likelihood of spatially and temporally uniform slopewash sedimentation. This constitutes a place-based approach to decipher the chronology of agropastoral activities within individual fields, which is applicable to other mountain ranges of the world. Stratigraphic columns were augured in contiguous 10 cm sample levels, which produced temporal resolution of decades to several centuries. We interpret relatively high concentrations of charcoal, rapid sedimentation, and magnetic susceptibility patterns as evidence of the intentional use of fire to transform forests into pastures. Results indicate that intentional burning and clearing probably were initiated by the Late Neolithic (ca. 5000 e6000 cal. BP). However, intense burning, extensive forest clearance, and erosional degradation occurred later during the Bronze Age at one site, and during the Iron Age at the other site. This non-synchronous pattern of charcoal abundance and sedimentation rates is consistent with human agency of land clearance driving the chronology rather than paleoclimatic drivers. Stratigraphic zones of rapid sedimentation at both sites constitute “legacy” sediment of great antiquity. Our results are consistent with similar shifts in fire regimes and vegetation assemblages derived from direct association with anthropogenic proxies (e.g. pastoral pollen taxa, fungal spores of sheep dung, and archaeological sites) elsewhere in the Pyrenees and other European mountains. Consequently, our method may provide a good indicator of human presence and land-use activities for mountainous areas where paleoenvironmental records from bogs, lakes, and archaeological sites are limited.

This paper examines local processes of agricultural abandonment, socioeconomic changes, and associated landscape transition in a Pyrenean mountain village. We analyze the effects of socioeconomic and demographic factors contributing to changes in parcel level land use and ownership from 1830 to 1958. We use an event-history analysis to examine how individual etxe (Basque households) influenced the pace and character of landscape transition through their internal composition and their mediation of market pressures. Contrary to conventional narratives of agricultural transitions, our analysis suggests that more rapid “abandonment” of the landscape was prevented by etxe that were able to both engage in markets and maintain higher fertility rates. We conclude that the capacity of agropastoral landscapes to absorb broad-scale change is directly tied to local institutions, such as the etxe, which ultimately mediate socioeconomic drivers of change.

We examined the relationships between lightning-fire-prone environments, socioeconomic metrics, and documented use of broadcast fire by small-scale hunter-gatherer societies. Our approach seeks to re-assess human-fire dynamics in biomes that are susceptible to lightning-triggered fires. We quantify global lightning-fire-prone environments using mean monthly lightning and climatological flammability, and then compare how well those environments and socioeconomic variables (population density, mobility, and subsistence type) serve as predictors of observed broadcast fire use from the ethnographic data. We use a logistic model for all vegetated, forested, and unforested biomes. Our global analysis of human-fire-landscape interaction in three hundred and thirty-nine hunter-gatherer groups demonstrates that lightning-fire-prone environments strongly predict for hunter-gatherer fire use. While we do not maintain that lightning-fire-prone environments determine the use of fire by small societies, they certainly appear to invite its use. Our results further suggest that discounting or ignoring human agency contradicts empirical evidence that hunter-gatherers used fire even in locations where lightning could explain the presence of fire. Paleoecological research on fire and hypothesis testing using global fire modeling should consider insights from human ecology in the interpretation of data and results. More broadly, our results suggest that small-scale societies can provide insight into sustainable fire management in lightning-fire-prone landscapes.

Every year worldwide some extraordinary wildfires occur, overwhelming suppression capabilities, causing substantial damages, and often resulting in fatalities. Given their increasing frequency, there is a debate about how to address these wildfires with significant social impacts, but there is no agreement upon terminology to describe them. The concept of extreme wildfire event (EWE) has emerged to bring some coherence on this kind of events. It is increasingly used, often as a synonym of other terms related to wildfires of high intensity and size, but its definition remains elusive. The goal of this paper is to go beyond drawing on distinct disciplinary perspectives to develop a holistic view of EWE as a social-ecological phenomenon. Based on literature review and using a transdisciplinary approach, this paper proposes a definition of EWE as a process and an outcome. Considering the lack of a consistent “scale of gravity” to leverage extreme wildfire events such as in natural hazards (e.g., tornados, hurricanes and earthquakes) we present a proposal of wildfire classification with seven categories based on measurable fire spread and behavior parameters and suppression difficulty. The categories 5 to 7 are labeled as EWE.

Th is paper presents a place-based examination of the timing and long-term pedogenic eff ects of human-induced forest to pasture conversion in the French western Pyrenees Mountains, Basque commune of Larrau. We analyzed colluvial stratigraphic sections to derive the chronology of landscape change using radiocarbon dating, charcoal concentrations, magnetic susceptibility, and n-alkanes to reveal when forests were replaced by pastures (largely by intentional use of fi re). In addition, we compared properties of native forest soils to those of adjacent long-term pastures using a paired t-test approach. Results indicate that intense burning and clearing occurred in the late Holocene, starting at about 4,000 cal yr BP, but limited fi res occurred on the landscape during the early and middle Holocene. Aft er 4,000 cal yr BP the sedimentation rates signifi cantly increased, constituting “legacy” sediment, but post-4,000 cal yr BP sedimentation rates remain well within a range typical for forested hillsides (< 1 mm yr-1). Th us, erosional degradation is not apparent. Our paired analysis of old-growth forests compared to long-term pastures reveals that soils of millennial pastures are building up by additions of organic matter and phytoliths, as well as by decreases in bulk density of topsoils. Th e pastured A horizons are triple the thickness of those in forests, and pastures have signifi cantly lower bulk densities, resulting in much more rapid water infi ltration capacities. Although the concentrations of some inorganic nutrients in the pastured soils are signifi cantly lower than in forested soils (mg kg-1 basis), the overall result is that the soils in pastures are of higher quality than those in forests. Melanization of the pastured profi les is an indirect anthropogenic process that has built-up the A horizons through time, which testifi es to the importance of human agency in long-term soil evolution. Th e agropastoral uplands of Larrau stand in contrast to conventional degradation narratives of millennially grazed landscapes. Th e apparent sustainability of this landscape suggests that over the long term, agropastoral land use actually can result in changes to soils and landscapes that facilitate conservation.

The human use of fire is a major disturbance factor shaping the long term composition and patterning of temperate forest landscapes. Yet, knowledge of the role of human agency in the historical dynamics of fire in temperate forests remains vague. This paper presents a cross-scale Bayesian Weights of Evidence analysis of change in the spatial patterns of fire use over the last 180 years for a village territory in the Basque portion of the French Pyrenees. Research investigated the historical relationships between social institutions that control land use, the spatial patterning of fire use, and landscape change. Analysis considered the spatial contexts within which humans use and manage land: the household institution and the parcel unit of land management. Bayesian methods established statistically significant associations between social and ecological factors driving fire use and landscape change. These associations suggest that social institutions differentially affected fire use patterns through inherited constraints. The resulting socioecological legacies helped to explain the spatial patterns of landscape change. Uncertainty highlighted in the modeling process suggests that we need a better understanding of the historical ecological dynamics of household institutions and land use change in order to better explain relationships between variability in land use intensity and the fire regime.

I analyzed the spatiotemporal patterning of intentional, unauthorized landscape fires in the state of Georgia, USA, for the years 1987 through 2010 with the aim of delineating socioecological constraints on and firesetter preferences for the timing and placement of ignitions. Unauthorized fires represent complex phenomena through which actors compete over social and ecological outcomes that transcend the spatiotemporal confines of individual fires themselves. Current classificatory systems define unauthorized firesetting behavior as irrational, destructive, and malicious. Because landscape fires cause both positive and negative consequences for biological diversity and ecosystems services, perceived costs and benefits of fires are contestable and relative to point of view. The locational and temporal patterns of unauthorized landscape fires examined in this study do not show firesetter preferences for maximizing damage to landscapes. Instead, unauthorized fires in Georgia potentially contribute to the maintenance of landscapes adapted to frequent, dormant- and early growing-season fire regimes.

People in the French Western Pyrenees have used fire for millennia in order to shape and manage landscapes. This history has left cultural and ecological legacies that both reflect and ensure the relative persistence of landscape patterns and processes. In this paper I draw on ethnographic research, ethnohistorical evidence, and Bayesian spatial analyses of historical fire use locations and land use maps to shed some light on human-firelandscape dynamics in the Pyrenees for the years 1830 to 2011. I show how cultural and ecological legacies reflect a self-organized fire management regime that emerges from fire use driven by the production goals of individual households. I frame the self-organizing dynamic inherent in Pyrenean pastoral fire use as ‘‘landscape memory.’’ This conclusion has implications for the future direction of fire-related conservation policy for the Pyrenees and for analogous systems characterized by self-organized land management regimes.

The current fires raging across Indonesia are emitting more carbon than the annual fossil fuel emissions of Germany or Japan, and the fires are still consuming vast tracts of rainforest and peatlands. The National Interagency Fire Center (www.nifc.gov) notes that 2015 is one worst fire years on record in the U.S., where more than 9 million acres burned -- equivalent to the combined size of Massachusetts and New Jersey. The U.S. and Indonesian fires have already displaced tens of thousands of people, and their impacts on ecosystems are still unclear. In the case of Indonesia, the burning peat is destroying much of the existing soil, with unknown implications for the type of vegetation regrowth. Such large fires result from a combination of fire management practices, increasing anthropogenic land use, and a changing climate. The expected increase in fire activity in the upcoming decades has led to a surge in research trying to understand their causes, the factors that may have influenced similar times of fire activity in the past, and the implications of such fire activity in the future. Multiple types of complementary data provide information on the impacts of current fires and the extent of past fires. The wide array of data encompasses different spatial and temporal resolutions (Figure 1) and includes fire proxy information such as charcoal and tree ring fire scars, observational records, satellite products, modern emissions data, fire models within global land cover and vegetation models, and sociodemographic data for modeling past human land use and ignition frequency. Any single data type is more powerful when combined with another source of information. Merging model and proxy data enables analyses of how fire activity modifies vegetation distribution, air and water quality, and proximity to cities; these analyses in turn support land management decisions relating to conservation and development.

We test the hypothesis that prehistoric Native American land use influenced the Euro-American settlement process in a South Carolina Piedmont landscape. Long term ecological studies demonstrate that land use legacies influence processes and trajectories in complex, coupled social and ecological systems. Native American land use likely altered the ecological and evolutionary feedback and trajectories of many North American landscapes. Yet, considerable debate revolves around the scale and extent of land use legacies of prehistoric Native Americans. At the core of this debate is the question of whether or not European colonists settled a mostly "wild" landscape or an already "humanized" landscape. We use statistical event analysis to model the effects of prehistoric Native American settlement on the rate of Colonial land grants (1749-1775). Our results reveal how abandoned Native American settlements were among the first areas claimed and homesteaded by Euro-Americans. We suggest that prehistoric land use legacies served as key focal nodes in the Colonial era settlement process. As a consequence, localized prehistoric land use legacies likely helped structure the long term, landscape- to regional-level ecological inheritances that resulted from Euro-American settlement.

Bowman et al. (Journal of Biogeography, 2011, 38, 2223–2236) attempt a synthesis of the current status of study into human use of fire as an ecosystem management tool and provide a framework for guiding research on the human dimensions of global fire. While we applaud this ambitious effort, we believe the proposed ‘pyric phase and transition’ model to be too deterministic and simplistic to account for the complexity and diversity in human–fire relationships. After reviewing theoretical problems with the proposed framework, we question policy implications of their conclusions concerning tropical forest systems. We suggest that a theoretically informed perspective should build on an historical fire ecology framework for investigating social and ecological aspects of human–environment interactions.

Human activity currently plays a significant role in determining the frequency, extent and intensity of landscape fires worldwide. Yet the historical and ecological relationships between humans, fire and the environment remain ill-defined if not poorly understood and an integrative approach linking the social and physical aspects of fire remains largely unexplored. We propose that human fire use is ubiquitous and evidence that historical fire patterns do not differ from non-anthropogenic fire regimes is not evidence that humans did not practice fire management. Through literature review and the presentation of two case studies from the south-eastern USA and tropical Australia, we discuss how the study of fire ecology can benefit from paying attention to the role of humans in three thematic areas: (1) human agency and decision processes; (2) knowledge and practice of landscape fire and (3) socioecological dynamics inherent in the history of social systems of production and distribution. Agency, knowledge of fire ecology and social systems of production and distribution provide analytical links between human populations and the ecological landscape. Consequently, ignitions ultimately result from human behaviours, and where fire use is practised, ignitions result from decision process concerning a combination of ecological knowledge and belief and the rationale of livelihood strategies as constrained by social and ecological parameters. The legacy of human land use further influences fuel continuity and hence fire spread.

Fire is a global phenomenon transcending social, economic, and political boundaries. Effective decision making regarding fire policies requires integrating knowledge of human, ecological, and climatic components of fire research over a range of spatial and temporal scales. The Analysis, Integration and Modeling of the Earth System (AIMES) fourth Young Scholar's Network workshop brought together early-career researchers representing anthropology, archaeology, atmospheric science, climate modeling, ecology, fire management, geography, paleoclimate, political science, and remote sensing. Goals of the workshop were to explore the drivers, impacts, and feedbacks of human use of fires and to contextualize the management of fires.