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Jeffrey Evans


Jeffrey Evans

Senior Landscape Ecologist, Conservation Lands

Jeffrey Evans is a Senior Landscape Ecologist for The Nature Conservancy’s Conservation Lands Global Science Team. His focus is on the development of new statistical tools for evaluation of species status, biodiversity, habitat quality and potential effects of anthropogenic development. Working extensively on the Conservancy’s Development by Design strategy, he works on using predictive models to develop solutions that benefit conservation outcomes. Jeffrey is involved in his own research, with collaborators at several universities, USFWS, NRCS, USFS and various TNC scientists, covering diverse topics such as spatial statistics, population ecology, remote sensing and landscape genetics.

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Publications

Select publications

Griscom, B.W., Ellis, P.W., Baccini, A., Marthinus, D., Evans, J.S., Ruslandi. (2016). Synthesizing global and local datasets to estimate jurisdictional forest carbon fluxes in Berau, Indonesia. PLoS ONE, 11, e0146357. doi:10.1371/journal.pone.0146357

Baruch-Mordo, S., J.S. Evans, J. Severson, J. D. Naugle, J. Kiesecker, J. Maestas, and M.J. Falkowski (2013) Saving sage-grouse from the trees: A proactive solution to reducing a key threat to a candidate species Biological Conservation 167:233-241

Copeland, H.E., A. Pocewicz, D.E. Naugle, T. Griffiths, D. Keinath, J.S. Evans, J. Platt (2013) Measuring the effectiveness of conservation: a novel framework to quantify the benefits of sage-grouse conservation policy and easements in Wyoming. PLoS One 8(6):e67261

Cushman, S.A, K. McGarial, K. Gutzwiller and J.S. Evans. (2010). The gradient paradigm: A conceptual and analytical framework for landscape ecology. Chapter 5 in S.A. Cushman and F. Huettman (eds). Spatial Complexity, Informatics and Wildlife Conservation, Springer, New York.

Doherty K.E., J.S. Evans, J. Walker, J.H. Devries, D.W. Howerter (2015) Building the Foundation for International Conservation Planning for Breeding Ducks across the U.S. and Canadian Border. PLoS ONE 10(2): e0116735

Doherty, K.E., D.E. Naugle, and J.S. Evans (2010) A Currency for Offsetting Energy Development Impacts: Horse-Trading Sage-Grouse on the Open Market. PLoS One 5(4):e10339

Evans, J.S., S.R. Schill, G.T. Raber (2015) A Systematic Framework for Spatial Conservation Planning and Ecological Priority Design in St. Lucia, Eastern Caribbean. Chapter 26 in Central American Biodiversity : Conservation, Ecology and a Sustainable Future. F. Huettman (eds). Springer, NY.

Evans, J.S., J.M. Kiesecker (2014) Shale Gas, Wind and Water: Assessing the Potential Cumulative Impacts of Energy Development on Ecosystem Services within the Marcellus Play. PLoS ONE 9(2): e89210. doi:10.1371/journal.pone.0089210

Evans J.S., M.A. Murphy, Z.A. Holden, S.A. Cushman (2011). Modeling species distribution and change using Random Forests in Predictive species and habitat modeling in landscape ecology: concepts and applications. eds Drew CA, YF Wiersma, F Huettmann. Springer, NY

Evans, J.S. and S.A. Cushman (2009) Gradient Modeling of Conifer Species Using Random Forest. Landscape Ecology 5:673-683.

Evans, J.S., & A.T. Hudak. 2007. A multiscale curvature algorithm for classifying discrete return lidar in forested environments. IEEE Transactions on Geoscience and Remote Sensing 45(4):1029-1038

Gabrielsen, C.G., M.A. Murphy, J.S. Evans (in press) Using Probabilistic, Multiscale Approaches to Identify Spatial and Temporal Wetland Gradients. Remote Sensing of the Environment.

Griscom, B.W., P.W. Ellis, A. Baccini, D. Matrhinus, J.S. Evans, L. Hovani (in press) Synthesizing global datasets for jurisdictional forest carbon accounting in Berau, Indonesia. PLoS One.

Hegel T., S.A. Cushman, F. Huettmann, and J.S. Evans (2010) Current State of the Art for Statistical Modeling of Species Distributions. Chapter 16 in Spatial Complexity, Informatics and Wildlife Conservation eds. F Huettmann and S.A. Cushman. pp. 273-311. Springer, New York.

Kiesecker, J.M., J.S. Evans, J. Fargione, K. Doherty, K. Foresman, D. Naugle, N. Nibbelink, N. Niemuth (2011) A Win-Win for Wind and Wildlife: A Vision for Facilitating Sustainable Development. PLoS One 10.1371/journal.pone.0017566

Lipsey, M.K., K.E. Doherty, D.E. Naugle, S. Fields, J.S. Evans, S.K. Davis and N. Koper (2015) One step ahead of the plow: Using cropland conversion risk to guide grassland songbird conservation. Biological Conservation. 191:739–749

Murphy M, J.S. Evans, and A. Storfer (2010) Quantifying Bufo boreas connectivity in Yellowstone National Park with landscape genetics. Ecology 91:252-261

Smith, J.T., J.S. Evans, S. Baruch-Mordo, D.E. Naugle (in press) Reducing cropland conversion risk to sage-grouse through strategic conservation of working rangelands. Ecosphere.

Storfer A. M.A.Murphy, J.S.Evans., et al., (2007) Putting the landscape in landscape genetics Heredity 98:128-142.

Strager, M.P., J.M. Strager, A.E. Maxwell, J.S. Evans, J. Dunscomb, B. Kreps (2015) Combining a Spatial Model and Demand Forecasts to Map Future Surface Coal Mining in Appalachia. PLoS ONE 10(6):e0128813.

Rehfeldt, G.E., N.L. Crookston, M.V. Warwell, J.S. Evans. (2006). Empirical analysis of plant-climate relationships for the western United States. International Journal of Plant Science. 167(6):1123-1150


Select Reports

Doherty K.E., J.S. Evans, P.S. Coates, L. Juliusson, B.C. Fedy (2015) Importance of regional variation in conservation planning and defining thresholds for a declining species: A range-wide example of the Greater Sage-grouse. USGS, Technical Report. 

Doherty, K.E., J.D. Tack, J.S. Evans, D.E. Naugle (2010) Mapping breeding densities of greater sage-grouse: A tool for range-wide conservation planning. Bureau of Land Management. Report Number: L10PG00911. Available: http://www.conservationgateway.org/ConservationByGeography/NorthAmerica/Pages/sagegrouse.aspx

Dunscomb, J.K., J.S. Evans, J.M. Strager, M.P. Strager, J.M. Kiesecker (2015) Assessing Future Energy Development across the Appalachian Landscape Conservation Cooperative. Appalachian Landscape Conservation Cooperative technical Report #2012-02.

Evans, J.S., C. Pedraza, T. Walschburger, J.C. Gonzalez, J.M. Kiesecker (2015) A Shell-TNC Development by Design Project for Implementation of the Mitigation Hierarchy in Colombia’s Magdalena River Basin to Enable Shell to Manage Impacts from both Conventional and Unconventional Oil and Gas Development (Phase I Critical Habitat Analysis). The Nature Conservancy, Technical report.

Evans, J.S. (2015) spatialEco: An R package for spatial analysis and modeling. R package version 0.1-1.

Evans, J.S., & M.A. Murphy (2015). GeNetIt; An R package for Graph-theoretical Spatial Genetic Gravity Models. R package version 0.1-0.

Evans, J.S. and M.A. Murphy (2014) rfUtilities: An R package for model selection and validation of Random Forests models. R package version 1.0-1.

Heiner, M., G. Davaa, J.M. Kiesecker, B. McKenney, J.S. Evans, T. Enkhtsetseg, et al., (2011) Identifying Conservation Priorities in the Face of Future Development: Applying Development by Design in the Grasslands of Mongolia. The Nature Conservancy, Technical report.

MacKenzie, D.I., J.S. Evans (2015) Spatial-temporal analysis of male greater sage grouse lek trends. USFWS, Technical Report.

Murphy, M.A., J.S. Evans, C.G. Gabrielsen (2013) Wetland Hydroperiod and Climate Change. Report to the Plains and Prairie Pothole Landscape Conservation Cooperative. Available: http://www.plainsandprairiepotholeslcc.org/research-project/wetland-hydroperiod-and-climate-change-implications-for-biodiversity-and-water-availability/

Jeffrey Evans is a Senior Landscape Ecologist for The Nature Conservancy’s Conservation Lands Global Science Team. His focus is on the development of new statistical tools for evaluation of species status, biodiversity, habitat quality and potential effects of anthropogenic development. Working extensively on the Conservancy’s Development by Design strategy, he works on using predictive models to develop solutions that benefit conservation outcomes. Jeffrey is involved in his own research, with collaborators at several universities, USFWS, NRCS, USFS and various TNC scientists, covering diverse topics such as spatial statistics, population ecology, remote sensing and landscape genetics. Jeffrey received his Ph.D. from University of California Berkeley in ecology and statistics and holds an affiliate assistant professor position at the University of Wyoming. Prior to TNC he worked as a research ecologist for the USFS Research Station, held affiliate assistant professor status at the University of Idaho and worked at the California Academy of Sciences as a Research Assistant. Jeffrey has been married to, long term collaborator, Dr. Melanie Murphy for fifteen years and together they have two dogs and three horses.

 

Jeffrey is one of the consulting lead scientists for the USDA-NRCS Sage Grouse Initiative, providing relevant science-based information to guide proactive “on-the-ground” management. He is also a technical advisor to the USFWS Prairie Pothole waterfowl science team and provides broad technical and statistical support to various TNC efforts. Current projects include impact assessment of development on biodiversity and ecosystem process in Colombia, Indonesia, India and the US. He is also collaborating with various academic colleagues on: evaluation of Hirola population dynamics in Kenya; response of wetland hydroperiod and biodiversity to climate variation in the US prairie pothole region; development of novel graph-theoretical statistics in evaluating genetic and functional connectivity; evaluation of anthropogenic disturbance on species occurrence; development of novel models for understanding spatial-temporal trend in sage grouse and other sage/grassland obligates; and development of several modeling tools for the ArcGIS and R software that facilitate technology transfer of novel analytical/statistical methods developed by the Conservation Lands Science team.

Contact

Geraldine Henrich-Koenis
Phone: (703) 841-3939
E-mail: ghenrich-koenis@tnc.org

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