Dr. Brian Miller is a USGS Research Ecologist with the North Central Climate Adaptation Science Center, one of nine centers in the United States charged with providing the best-available climate science to resource managers.
Brian's current focus is on using scenario planning and simulation modeling (state-and-transition simulations, agent-based models) to inform natural resource management in the Rocky Mountains and northern Great Plains. He is also a co-organizer of the Indigenous Phenology Network and an instructor with the National Conservation Training Center. He has an interdisciplinary background in social-ecological systems, and has used a broad range of methods – including simulation modeling, institutional analysis, fluvial geomorphology, livelihood decision modeling, and remote sensing – to examine the interactions of climate, ecosystems, and resource management in East Africa, the Galápagos Islands, and the western U.S.
Brian earned a B.A. in Ecology and Evolutionary Biology from the University of Colorado at Boulder, and a Ph.D. in Ecology from the University of North Carolina at Chapel Hill where he also worked at the Carolina Population Center. His dissertation focused on how conservation areas and land use changes have affected access to drought resource areas in East Africa, how these changes in resource access have influenced the livelihood decisions of Maasai pastoralists, and how livelihood decisions and resource management institutions have affected rangeland rivers.
Education and Certifications
Ph.D. in Ecology, University of North Carolina at Chapel Hill
B.A. in Ecology and Evolutionary Biology, University of Colorado at Boulder
Science and Products
Deep Dive: Climate Change Scenario Planning
Managing Ecological Transformation to Enhance Carbon Storage and Biodiversity
Webinar: Developing divergent, plausible, and relevant climate futures for near- and long-term resource planning
Developing Resources for Tribal Partnership Science
Crafting Ecological Scenarios to Implement the Resist-Accept-Direct (RAD) Framework
Modeling to Support Grazing Management Planning in U.S. National Parks: A Case Study from Dinosaur National Monument
Developing A New Software Package to Enhance Species Distribution Model Functionality
Supporting the National Park Service in Climate Adaptation Planning
Open-Source and Open-Workflow Climate Futures Toolbox for Adaptation Planning
The Missing Link: Incorporating the Role of Biological Diversity into Projections of Ecosystem Services
Integrating Climate Considerations into Grazing Management Programs in National Parks
Supporting the National Park Service Midwest Region Bison Management Plan
Seventy questions of importance to the conservation of the North Central grasslands of the United States in a changing climate
Towards a better future for biodiversity and people: Modelling Nature Futures
Bringing the Nature Futures Framework to life: Creating a set of illustrative narratives of nature futures
Synthesis of climate and ecological science to support grassland management priorities in the North Central Region
Climate change and the global redistribution of biodiversity: Substantial variation in empirical support for expected range shifts
A conceptual framework to integrate biodiversity, ecosystem function, and ecosystem service models
Expert perspectives on global biodiversity loss and its drivers and impacts on people
Overcoming “analysis paralysis” through better climate change scenario planning
Integrating climate considerations into grazing management programs in national parks
From flowering to foliage: Accelerometers track tree sway to provide high-resolution insights into tree phenology
Conservation under uncertainty: Innovations in participatory climate change scenario planning from U.S. national parks
Increasing the uptake of ecological model results in policy decisions to improve biodiversity outcomes
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Coupled Agent-Based and State-and-Transition Simulation Model
Science and Products
- Science
Filter Total Items: 17
Deep Dive: Climate Change Scenario Planning
Scenario planning is a powerful tool to help decision makers plan for an uncertain future. Through this process, people consider different ways the climate could change and explore how these changes would affect resources important to them. USGS scientists work with natural and cultural resource managers to use climate change scenario planning to prepare for a wide range of possible futures.Managing Ecological Transformation to Enhance Carbon Storage and Biodiversity
In the North Central region, invasive species and climate change are intricately linked to changing fire regimes, and together, these drivers can have pronounced effects on ecosystems. When fires burn too hot or too frequently, they can prevent slow-growing native plants from regrowing. When this happens, the landscape can transform into a new type of ecosystem, such as a forest becoming a grasslaWebinar: Developing divergent, plausible, and relevant climate futures for near- and long-term resource planning
View this webinar to learn how scientists use scenario planning as a tool to prepare for a changing climate.Developing Resources for Tribal Partnership Science
Tribal Partnership Science (TPS) is a rapidly growing field that brings together biophysical and social scientists, federally recognized tribes, and federal land management agencies. TPS is essential for addressing complex environmental challenges facing tribes and their homelands. In recent years, a proliferation of methods, frameworks, and guidance for TPS has emerged from diverse scientific disCrafting Ecological Scenarios to Implement the Resist-Accept-Direct (RAD) Framework
As climate change progresses, profound environmental changes are becoming a widespread concern. A new management paradigm is developing to address this concern with a framework that encourages strategic decisions to resist, accept, or direct ecological trajectories. Effective use of the Resist-Accept-Direct (RAD) framework requires the scientific community to describe the range of plausible ecologModeling to Support Grazing Management Planning in U.S. National Parks: A Case Study from Dinosaur National Monument
The National Park Service is responsible for managing livestock grazing on 94 locations across the country and several grazing management planning efforts for this work are underway. However, there is a recognized need to update grazing management plans to address potential future effects of climate change on related resources and practices. This is the second phase of a project that is using scenDeveloping A New Software Package to Enhance Species Distribution Model Functionality
Even when faced with uncertainty about future climate conditions, resource managers are tasked with making planning and adaptation decisions that impact important natural and cultural resources. Species distribution models are widely used by both researchers and managers to estimate species responses to climate change. These models combine data on environmental variables (e.g., temperature, precipSupporting the National Park Service in Climate Adaptation Planning
Natural and cultural resource managers across the country have begun to use a tool known as "scenario planning" to help prepare for climate change effects that may unfold in the future. In this process, scientific projections are used to identify different plausible, relevant, and divergent climate conditions for a particular area, and then through a participatory process, scientists and resourceOpen-Source and Open-Workflow Climate Futures Toolbox for Adaptation Planning
Global climate models are a key source of climate information and produce large amounts of spatially explicit data for various physical parameters. However, these projections have substantial uncertainties associated with them, and the datasets themselves can be difficult to work with. The project team created the first version (cst 0.1.0) of the Climate Futures Toolbox, an open source workflow inThe Missing Link: Incorporating the Role of Biological Diversity into Projections of Ecosystem Services
Modeling interactions between human and ecological systems is needed to identify pathways to meet multiple United Nations Sustainable Development Goals. Particularly important is the relationship between biodiversity, ecological processes, and ecosystem services. However, current models tend to ignore impacts of biodiversity on ecological processes. Existing models capture impacts of socio-economiIntegrating Climate Considerations into Grazing Management Programs in National Parks
The National Park Service (NPS) is responsible for managing livestock grazing in 94 units, and several park grazing management planning efforts are currently underway. However, there is a recognized need to update grazing management practices to address potential future effects of management practices and climate change. The goal of this project is to outline the steps required for developing NPSSupporting the National Park Service Midwest Region Bison Management Plan
The bison, which has long served as the symbol of the Department of the Interior, became the official national mammal of the United States in 2016. Bison played a key role in shaping the grasslands of the Great Plains for millennia, but today they are confined to unnaturally small ranges. National parks, including four in the Great Plains, provide a major last bastion for wild bison. Herds in Badl - Multimedia
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Filter Total Items: 33
Seventy questions of importance to the conservation of the North Central grasslands of the United States in a changing climate
Successful conservation of ecosystems in a changing climate requires actionable research that directly supports the rethinking and revising of management approaches to address changing risks and opportunities. As an important first step toward actionable research, we reviewed and synthesized grassland management-related documents to identify broadly shared questions that, if answered, would help tAuthorsChristine D. Miller Hesed, Heather M. Yocum, Molly S. Cross, Aparna Bamzai-Dodson, Ben Wheeler, Jon P. Beckmann, Marissa Ahlering, Kimberly R. Hall, Emily Boyd-Valandra, Danika Mosher, Brian W. Miller, Sarah JaffeTowards a better future for biodiversity and people: Modelling Nature Futures
The Nature Futures Framework (NFF) is a heuristic tool for co-creating positive futures for nature and people. It seeks to open up a diversity of futures through mainly three value perspectives on nature – Nature for Nature, Nature for Society, and Nature as Culture. This paper describes how the NFF can be applied in modelling to support decision-making. First, we describe key considerations for tAuthorsH. Kim, G.D. Peterson, W.W. Cheung, S. Ferrier, R. Alkemade, A. Arneth, Jan J. Kuiper, S. Okayasu, L.M. Pereira, L.A. Acosta, R. Chaplin-Kramer, E. den Belder, T.D. Eddy, J. C. Johnson, S. Karlsson-Viinkhuyzen, M.T.J. Kok, P. Leadley, D. Leclère, C. Lundquist, C. Rondini, R.J. Scholes, M.A. Schoolenberg, Y. Shin, E. Stehfest, F. Stephenson, P. Visconti, D. van Vuuren, C.C.C. Wabnitz, J.J. Alava, I. Cuadros-Casanova, K.K. Davies, M.A. Gasalla, G. Halouani, M. Harfoot, S. Hashimoto, T. Hickler, T. Hirsch, G. Kolomytsev, Brian W. Miller, H. Ohashi, M.G. Palomo, A. Popp, R.P. Remme, O. Saito, U.R. Sumalia, S. Willcock, H.M. PereiraBringing the Nature Futures Framework to life: Creating a set of illustrative narratives of nature futures
To halt further destruction of the biosphere, most people and societies around the globe need to transform their relationships with nature. The internationally agreed vision under the Convention of Biological Diversity—Living in harmony with nature—is that “By 2050, biodiversity is valued, conserved, restored and wisely used, maintaining ecosystem services, sustaining a healthy planet and deliveriAuthorsAmérica P. Durán, Jan J. Kuiper, A.P.D. Aguiar, W.W. Cheung, M.C. Diaw, G. Halouani, S. Hashimoto, M.A. Gasalla, G.D. Peterson, M.A. Schoolenberg, R. Abbasov, L.A. Acosta, D. Armenteras, F. Davila, M.A. Denboba, P.A. Harrison, K.A. Harhash, S. Karlsson-Viinkhuyzen, H. Kim, C. Lundquist, Brian W. Miller, S. Okayasu, R. Pichs-Madruga, J. Sathyapalan, A.K. Saysel, D. Yuan, L.M. PereiraSynthesis of climate and ecological science to support grassland management priorities in the North Central Region
Grasslands in the Great Plains are of ecological, economic, and cultural importance in the United States. In response to a need to understand how climate change and variability will impact grassland ecosystems and their management in the 21st century, the U.S. Geological Survey North Central Climate Adaptation Science Center led a synthesis of peer-reviewed climate and ecology literature relevantAuthorsChristine D. Miller Hesed, Heather M. Yocum, Imtiaz Rangwala, Amy Symstad, Jeff M. Martin, Kevin Ellison, David J. A. Wood, Marissa Ahlering, Katherine J. Chase, Shelley Crausbay, Ana D. Davidson, Julie L. Elliott, Jim Giocomo, David Hoover, Toni Klemm, David A. Lightfoot, Owen P. McKenna, Brian W. Miller, Danika Mosher, R. Chelsea Nagy, Jesse B. Nippert, Jeremy Pittman, Lauren M. Porensky, Jilmarie Stephens, Alexander V. ZaleClimate change and the global redistribution of biodiversity: Substantial variation in empirical support for expected range shifts
BackgroundAmong the most widely predicted climate change-related impacts to biodiversity are geographic range shifts, whereby species shift their spatial distribution to track their climate niches. A series of commonly articulated hypotheses have emerged in the scientific literature suggesting species are expected to shift their distributions to higher latitudes, greater elevations, and deeper depAuthorsMadeleine A. Rubenstein, Sarah R. Weiskopf, Romain Bertrand, Shawn Carter, Lise Comte, Mitchell Eaton, Ciara G. Johnson, Jonathan Lenoir, Abigail Lynch, Brian W. Miller, Toni Lyn Morelli, Mari Angel Rodriguez, Adam Terando, Laura ThompsonA conceptual framework to integrate biodiversity, ecosystem function, and ecosystem service models
Global biodiversity and ecosystem service models typically operate independently. Ecosystem service projections thus may be overly optimistic because they do not account for the role of biodiversity in maintaining ecological functions underpinning their provision. We review models used in recent global model intercomparison projects and develop a novel model integration framework to more fully accAuthorsSarah R. Weiskopf, Bonnie J.E. Myers, Maria Isabel Arce-Plata, Julia L. Blanchard, Simon Ferrier, Elizabeth A. Fulton, Mike Harfoot, Forest Isbell, Justin A. Johnson, Akira S. Mori, Ensheng Weng, Zuzana Harmáčková, Maria Cecilia Londoño-Murcia, Brian W. Miller, Laura Pereira, Isabel M.D. RosaExpert perspectives on global biodiversity loss and its drivers and impacts on people
Despite substantial progress in understanding global biodiversity loss, major taxonomic and geographic knowledge gaps remain. Decision makers often rely on expert judgement to fill knowledge gaps, but are rarely able to engage with sufficiently large and diverse groups of specialists. To improve understanding of the perspectives of thousands of biodiversity experts worldwide, we conducted a surveyAuthorsForest Isbell, Patricia Balvanera, Akira S. Mori, Jin-Sheng He, James M. Bullock, Ganga Ram Regmi, Eric W. Seabloom, Simon Ferrier, Osvaldo E. Sala, Nathaly R. Guerrero-Ramírez, Julia Tavella, Daniel J. Larkin, Bernhard Schmid, Charlotte L. Outhwaite, Pairot Pramua, Elizabeth T. Borer, Michel Loreau, Taiwo Crossby Omotoriogun, David O. Obura, Maggie Anderson, Cristina Portales-Reyes, Kevin Kirkman, Pablo M Vergara, Adam Thomas Clark, Kimberly J Komatsu, Owen L. Petchey, Sarah R. Weiskopf, Laura J. Williams, Scott L. Collins, Nico Eisenhauer, Christopher H Trisos, Delphine Renard, Alexandra J. Wright, Poonam Tripathi, Jane Cowles, Jarrett E. K. Byrnes, Peter B. Reich, Andy Purvis, Zati Sharip, Mary I. O'Connor, Clare E. Kazanski, Nick M. Haddad, Eulogio H. Soto, Laura E. Dee, Sandra Díaz, Chad R. Zirbel, Meghan L. Avolio, Shaopeng Wang, Zhiyuan Ma, Jingjing Liang, Hanan C. Farah, Justin Andrew Johnson, Brian W. Miller, Yann Hautier, Melinda D. Smith, Johannes M. H. Knops, Bonnie Myers, Zuzana Harmáčková, Jorge Cortés, Mike Harfoot, Andrew Gonzalez, Tim Newbold, Jacqueline Oehri, Marina Mazón, Cynnamon Dobbs, Meredith S. PalmerOvercoming “analysis paralysis” through better climate change scenario planning
This "In Brief" article describes the use of scenario planning to facilitate climate change adaptation in the National Park Service. It summarizes best practices and innovations for using climate change scenario planning, with an emphasis on management outcomes and manager perspectives. The scenario planning approach and management outcomes highlighted in this article are the culmination of more tAuthorsGregor W. Schuurman, Brian W. Miller, Amy Symstad, Amber N. Runyon, Brecken C. RobbIntegrating climate considerations into grazing management programs in national parks
The National Park Service (NPS) is responsible for managing livestock grazing in nearly 100 parks, and several park grazing management planning efforts are currently underway. However, there is a recognized need to update grazing management practices to be responsive and adaptive to future climate change. As a step toward developing a process to address this need, this project worked with DinosaurAuthorsBrian W. Miller, Amanda Hardy, Emily Spencer, Jordan Spaak, Greg Eckert, Gregor Schuurman, Amber Childress, Imtiaz Rangwala, David Thoma, Leonardo Frid, Kirk R. Sherrill, Linda Zeigenfuss, Danguole BockusFrom flowering to foliage: Accelerometers track tree sway to provide high-resolution insights into tree phenology
Trees are bioindicators of global climate change and regional urbanization, but available monitoring tools are ineffective for fine-scale observation of many species. Using six accelerometers mounted on two urban ash trees (Fraxinus americana), we looked at high-frequency tree vibrations, or change in periodicity of tree sway as a proxy for mass changes, to infer seasonal patterns of flowering andAuthorsDeidre M. Jaeger, A. M. C. Looze, M. S. Raleigh, Brian W. Miller, J. M. Friedman, C. A. WessmanConservation under uncertainty: Innovations in participatory climate change scenario planning from U.S. national parks
The impacts of climate change (CC) on natural and cultural resources are far-reaching and complex. A major challenge facing resource managers is not knowing the exact timing and nature of those impacts. To confront this problem, scientists, adaptation specialists, and resource managers have begun to use scenario planning (SP). This structured process identifies a small set of scenarios—descriptionAuthorsBrian W. Miller, Gregor W. Schuurman, Amy Symstad, Amber C Runyon, Brecken C. RobbIncreasing the uptake of ecological model results in policy decisions to improve biodiversity outcomes
Models help decision-makers anticipate the consequences of policies for ecosystems and people; for instance, improving our ability to represent interactions between human activities and ecological systems is essential to identify pathways to meet the 2030 Sustainable Development Goals. However, use of modeling outputs in decision-making remains uncommon. We share insights from a multidisciplinaryAuthorsSarah R. Weiskopf, Zuzana Harmáčková, Ciara G. Johnson, Maria Cecilia Londoño-Murcia, Brian W. Miller, Bonnie J.E. Myers, Laura Pereira, Maria Isabel Arce-Plata, Julia L. Blanchard, Simon Ferrier, Elizabeth A. Fulton, Mike Harfoot, Forest Isbell, Justin A. Johnson, Akira S. Mori, Ensheng Weng, Isabel M.D. RosaNon-USGS Publications**
Miller, B. W. 2015. Using geospatial analysis to assess the influence of land-use change and conservation on pastoralist access to drought resources. Nomadic Peoples 19(1): 120-145.Miller, B. W., Leslie, P. W., McCabe, J. T. 2014. Coping with natural hazards in a conservation context: resource-use decisions of Maasai households during recent and historical drought. Human Ecology 42(5): 753-768.Miller, B. W., & Doyle, M. W. 2014. Rangeland management and fluvial geomorphology in northern Tanzania. Geomorphology 214: 366-377.Miller, B. W., Caplow, S. C., Leslie, P. W. 2012. Feedbacks between conservation and social-ecological systems. Conservation Biology 26(2): 218-227.Miller, B. W., Breckheimer I., McCleary, A. L., Guzmán-Ramirez, L., Caplow, S. C., Jones-Smith, J. C., Walsh, S. J. 2010. Using stylized agent-based models for population-environment research: a case study from the Galápagos Islands. Population and Environment 31(6): 401-426.Walsh, S. J., Miller, B. W., Breckheimer, I., McCleary, A. L., Guzman-Ramirez, L., Caplow, S. C., Jones-Smith, J. C. 2009. Complexity Theory and Spatial Simulation Models to Assess Population-Environment Interactions in the Galápagos Islands. In: M. Wolff and M. Gardener (eds.), Proceedings of the Galápagos Science Symposium, Charles Darwin Foundation, Puerto Ayora, Galapagos, Ecuador. Pp 145-148.**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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Coupled Agent-Based and State-and-Transition Simulation Model
Agent-based models (ABMs) and state-and-transition simulation models (STSMs) have proven useful for understanding processes underlying social-ecological systems and evaluating practical questions about how systems might respond to different scenarios. ABMs can simulate a variety of agents (i.e., autonomous units, such as wildlife, people, or viruses); agent characteristics, decision-making, adapti - News