Jay Diffendorfer
I'm an applied ecologist working at the Geosciences and Environmental Change Science Center.
Trained as an ecologist, I originally worked on spatial ecology and conservation biology, including a USGS-funded post doc at University of Miami modelling reptile and amphibian responses to possible restoration scenarios in the Everglades. I then worked as an assistant and full professor at San Diego State University, studying relationships between urbanization, fire, and invasive species on a native flora and fauna in southern California. This field-oriented research involved radiotelemetry, capture-recapture, and vegetation studies. I left San Diego State University and spent 4 years at the Illinois Natural History Survey where my research began to expand into disease ecology and agro-ecosystems. Since arriving at USGS in 2008, I have continued to expand my research focus and currently work on science related to the energy-environment nexus, ecosystem services, and applied ecology.
Professional Experience
2014- Research Scientist and Supervisor, Geosciences and Environmental Change Science Center, USGS, Lakewood, Colorado
2008-2014 Research Scientist, Geosciences and Environmental Change Science Center, USGS, Lakewood, Colorado
2004-2008 Associate Scientist, Illinois Natural History Survey, Champaign, Illinois
1998-2004 Assistant/Associate Professor, San Diego State University, San Diego, California
1995-1998 Postdoctoral research with USGS, University of Miami, Miami, Florida
Education and Certifications
University of Kansas, Ph.D., (Ecology), 1995
Ohio University, BS, (Wildlife Biology), 1989
Science and Products
Filter Total Items: 21
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Filter Total Items: 106
Assessing local population vulnerability to wind energy development with branching process models: an application to wind energy development Assessing local population vulnerability to wind energy development with branching process models: an application to wind energy development
Quantifying the impact of anthropogenic development on local populations is important for conservation biology and wildlife management. However, these local populations are often subject to demographic stochasticity because of their small population size. Traditional modeling efforts such as population projection matrices do not consider this source of variation whereas individual-based...
Authors
Richard Erickson, Eric A. Eager, Jessica Stanton, Julie Beston, James E. Diffendorfer, Wayne Thogmartin
Onshore industrial wind turbine locations for the United States up to March 2014 Onshore industrial wind turbine locations for the United States up to March 2014
Wind energy is a rapidly growing form of renewable energy in the United States. While summary information on the total amounts of installed capacity are available by state, a free, centralized, national, turbine-level, geospatial dataset useful for scientific research, land and resource management, and other uses did not exist. Available in multiple formats and in a web application...
Authors
James E. Diffendorfer, Louisa Kramer, Zachary Ancona, Christopher Garrity
Insufficient sampling to identify species affected by turbine collisions Insufficient sampling to identify species affected by turbine collisions
We compared the number of avian species detected and the sampling effort during fatality monitoring at 50 North American wind facilities. Facilities with short intervals between sampling events and high effort detected more species, but many facilities appeared undersampled. Species accumulation curves for 2 wind facilities studied for more than 1 year had yet to reach an asymptote. The...
Authors
Julie Beston, James E. Diffendorfer, Scott Loss
Effects of fragmentation on the spatial ecology of the California Kingsnake (Lampropeltis californiae) Effects of fragmentation on the spatial ecology of the California Kingsnake (Lampropeltis californiae)
We investigated the spatial ecology of the California Kingsnake (Lampropeltis californiae) in unfragmented and fragmented habitat with varying patch sizes and degrees of exposure to urban edges. We radiotracked 34 Kingsnakes for up to 3 yr across four site types: interior areas of unfragmented ecological reserves, the urbanized edge of these reserves, large habitat fragments, and small...
Authors
Michael Anguiano, James E. Diffendorfer
Optimizing conservation strategies for Mexican freetailed bats: a population viability and ecosystem services approach Optimizing conservation strategies for Mexican freetailed bats: a population viability and ecosystem services approach
Conservation planning can be challenging due to the need to balance biological concerns about population viability with social concerns about the benefits biodiversity provide to society, often while operating under a limited budget. Methods and tools that help prioritize conservation actions are critical for the management of at-risk species. Here, we use a multi-attribute utility...
Authors
Ruscena Wiederholt, Laura Lopez-Hoffman, Colleen Svancara, Gary McCracken, Wayne Thogmartin, James E. Diffendorfer, Brady Mattson, Kenneth Bagstad, Paul Cryan, Amy Russell, Darius Semmens, Rodrigo Medellin
Preliminary methodology to assess the national and regional impact of U.S. wind energy development on birds and bats Preliminary methodology to assess the national and regional impact of U.S. wind energy development on birds and bats
The U.S. Geological Survey has developed a methodology to assess the impacts of wind energy development on wildlife; it is a probabilistic, quantitative assessment methodology that can communicate to decision makers and the public the magnitude of these effects on species populations. The methodology is currently applicable to birds and bats, focuses primarily on the effects of...
Authors
James E. Diffendorfer, Julie Beston, Matthew D. Merrill, Jessica Stanton, M.D. Corum, Scott R. Loss, Wayne Thogmartin, Douglas Johnson, Richard Erickson, Kevin Heist
A stage-structured, spatially explicit migration model for Myotis bats: mortality location affects system dynamics A stage-structured, spatially explicit migration model for Myotis bats: mortality location affects system dynamics
Bats are ecologically and economically important species because they consume insects, transport nutrients, and pollinate flowers. Many species of bats, including those in the Myotis genus, are facing population decline and increased extinction risk. Despite these conservation concerns, few models exist for providing insight into the population dynamics of bats in a spatially explicit...
Authors
Richard Erickson, Wayne Thogmartin, Robin Russell, James E. Diffendorfer, Jennifer Szymanski
Two decision-support tools for assessing the potential effects of energy development on hydrologic resources as part of the Energy and Environment in the Rocky Mountain Area interactive energy atlas Two decision-support tools for assessing the potential effects of energy development on hydrologic resources as part of the Energy and Environment in the Rocky Mountain Area interactive energy atlas
The U.S. Geological Survey project—Energy and Environment in the Rocky Mountain Area (EERMA)—has developed a set of virtual tools in the form of an online interactive energy atlas for Colorado and New Mexico to facilitate access to geospatial data related to energy resources, energy infrastructure, and natural resources that may be affected by energy development. The interactive energy...
Authors
Joshua Linard, Anne Matherne, Kenneth Leib, Natasha Carr, James E. Diffendorfer, Sarah Hawkins, Natalie Latysh, Drew A. Ignizio, Nils Babel
Carnivore distributions across chaparral habitats exposed to wildfire and rural housing in southern California Carnivore distributions across chaparral habitats exposed to wildfire and rural housing in southern California
Chaparral and coastal sage scrub habitats in southern California support biologically diverse plant and animal communities. However, native plant and animal species within these shrubland systems are increasingly exposed to human-caused wildfires and an expansion of the human–wildland interface. Few data exist to evaluate the effects of fire and anthropogenic pressures on plant and...
Authors
P.A. Schuette, J.E. Diffendorfer, D.H. Deutschman, S. Tremor, W. Spencer
Replacement cost valuation of Northern Pintail (Anas acuta) subsistence harvest in Arctic and sub-Arctic North America Replacement cost valuation of Northern Pintail (Anas acuta) subsistence harvest in Arctic and sub-Arctic North America
Migratory species provide economically beneficial ecosystem services to people throughout their range, yet often, information is lacking about the magnitude and spatial distribution of these benefits at regional scales. We conducted a case study for Northern Pintails (hereafter pintail) in which we quantified regional and sub-regional economic values of subsistence harvest to indigenous...
Authors
Joshua Goldstein, Wayne Thogmartin, Kenneth Bagstad, James Dubovsky, Brady J. Mattsson, Darius Semmens, Laura López-Hoffman, James E. Diffendorfer
Land cover and topography affect the land transformation caused by wind facilities Land cover and topography affect the land transformation caused by wind facilities
Land transformation (ha of surface disturbance/MW) associated with wind facilities shows wide variation in its reported values. In addition, no studies have attempted to explain the variation across facilities. We digitized land transformation at 39 wind facilities using high resolution aerial imagery. We then modeled the effects of turbine size, configuration, land cover, and topography...
Authors
Jay Diffendorfer, Roger Compton
Geospatial optimization of siting large-scale solar projects Geospatial optimization of siting large-scale solar projects
Recent policy and economic conditions have encouraged a renewed interest in developing large-scale solar projects in the U.S. Southwest. However, siting some large-scale solar projects, such as concentrating solar power (CSP), is complex. In addition to the quality of the solar resource, solar developers must take into consideration many environmental, social, and economic factors when...
Authors
Jordan Macknick, Ted Quinby, Emmet Caulfield, Margot Gerritsen, James E. Diffendorfer, Seth Haines
Non-USGS Publications**
Lips, K.A., Diffendorfer, J.E., Mendelson J.R., and Sears, M.W., 2008, Riding the wave: reconciling the role of disease and climate change in amphibian declines: Public Library of Science Biology, v.6, issue 3: e72. doi:10.1371/journal.pbio.0060072.
Sears, M.W., Diffendorfer, J.E., Lips, K.A., and Mendelson, J.R., 2008, Amphibian declines and issues of inference: response to Parmesan and Singer. Public Library of Science Biology.
Kelly, A.C., Mateus-Pinilla, N.E., Diffendorfer, J.E., Jewell, E., Ruiz, M.O., Killefer, J., Shelton, P., Beissel, T., and Novakofski, J., 2008, Prion sequence polymorphisms and chronic wasting disease resistance in Illinois white-tailed deer (Odocoileus virginianus): Prion, v. 2, p. 1-9.
Diffendorfer, J.E., Fleming, G.M., Duggan, J.M., Chapman, R.E., Rahn, M.E., Mitrovitch, M.J., and Fisher, R.N., 2007, Developing terrestrial, multi-taxon indices of biological integrity: An example from coastal sage scrub: Biological Conservation, v. 140, p. 130-141.
Diffendorfer, J.E., Spencer, W.S., Tremor, S., and Beyers, J., 2007, Effects of fire severity and distance from unburned edge on mammalian community post-fire recovery: Final Report for project 04-2-1-94 to the Joint Fire Sciences Program: 37 p.
Mateus-Pinilla, N.E., Novakofski, J.E., Kelly, A., Diffendorfer, J.E., Pinkerton, M., Whittington, J.K., and Ruiz, M., 2007, W-146-R-02 Annual federal aid performance report, wildlife and chronic wasting disease surveillance: Illinois Department of Natural Resources, 19p.
Mateus-Pinilla, N.E., Novakofski, J.E., Kelly, A., Diffendorfer, J.E., Pinkerton, M., Whittington, J.K., and Ruiz, M., 2006, W-146-R-01 Annual Federal Aid Performance Report, wildlife and chronic wasting disease surveillance: Illinois Department of Natural Resources, 34p.
Mateus-Pinilla, N.E., Novakofski, J.E., Diffendorfer, J.E., Killefer, J., 2006, Genetic relatedness and gene flow of white-tailed deer (Odocoileus virginianus) in the chronic wasting disease prevalent region of Illinois: Illinois Department of Natural Resources and International Association of Fish and Wildlife Agencies (IAFWA).
Rahn, M.E., Doremus, H., and Diffendorfer, J.E., 2006, Species coverage in multispecies habitat conservation plans: Where's the science? BioScience, v. 56, p. 613-619.
Mendelson, J.R., Lips, K.R., Gagliardo, R.W., Rabb, G. B., Collins, J.P., Diffendorfer, J.E., Daszak, P., D Ibáñez, R., Zippel, K.C., Lawson, D.P., Wright, K.M., Stuart, S.N., Gascon, C., da Silva, H.R., Burrowes, P.A., Joglar, R.L., La Marca, E., Lötters, S., du Preez, L.H., Weldon, C., Hyatt, A., Rodriguez-Mahecha, J.V., Hunt, S., Robertson, H. Lock, B., Raxworthy, C.J., Frost, D.R., Lacy, R.C., Alford, R.A., Campbell, J.A., Parra-Olea, G. Bolaños, F, Domingo, J.J.C., Halliday, T., Murphy, J.B., Wake, M.H., Coloma, L.A., Kuzmin, S.L., Price, M.S., Howell, K.M., Lau, M., Pethiyagoda, R., Boone, M., Lannoo, M. J., Blaustein, A. R., Dobson, A., Griffiths, R.A., Wake, D.B., Brodie Jr E.D., 2006, Confronting amphibian declines and extinctions: Science, v. 313, 48 p.
Mendelson, J.R., Lips, K.R., Diffendorfer, J.E., Gagliardo, R.W., Rabb, G.B., Collins, J.P., , Daszak, P., Ibáñez, R., Zippel, K.C., Stuart, S.N., Gascon, C., da Silva, Burrowes, P.A., Lacy, R.C., Bolaños, F, Coloma, L.A., Wright, K.M., Wake, D. B. 2006. Response to: Pounds et al.: responding to amphibian loss: Science, v. 314, p. 1541-1542.
Diffendorfer, J.E., Rochester, C., Fisher, R.N., and Brown, T.K., 2005, Movement and space use by coastal rosy boas (Lichanura trivirgata roseofusca) in Coastal Southern California: Journal of Herpetology, v. 39, p. 24-36.
Morris, D.W., Diffendorfer, J.E., and Lundberg, P., 2004, Dispersal among habitats varying in fitness: reciprocating migration through ideal habitat selection: Oikos, v. 107, p. 559-575.
Morris D.W., and Diffendorfer, J.E., 2004, Reciprocating dispersal by habitat-selecting white-footed mice: Oikos v. 107, p. 549-558.
Diffendorfer, J.E., and Doherty P.F., 2004, Lifting Cassandra's curse: Conservation Biology v. 18, p. 600.
Diffendorfer, J.E., Fleming G.M., Duggan, J., Chapman R., Hogan, D., 2004, Final report for creating and index of biological integrity for coastal sage scrub: A tool for habitat quality assessment and monitoring: Prepared for California Department of Fish and Game. 248 p.
Gaines, M.S., Sasso, C.R., Diffendorfer, J.E., and Beck, H., 2003, Effects of tree island size and water on the population dynamics of small mammals in the Everglades: in van der Valk, A., and Sklar, F., ed., Tree Islands of the Everglades: Kluwer Academic.
Betzler, J., Diffendorfer, J.E., Fleury, S., Hawke, M., Klein, M., Morrison, S., Nichols, G., Oberbauer, T., Rochester, C., Webb, M., and Williams, K., 2003, A summary of affected flora and fauna in the San Diego County fires of 2003: Burned Area Emergency Response (BAER) Program Reports, 36 p. + Appendices.
Diffendorfer, J.E. and Deutschman D.D., 2003, Monitoring the Stephen’s kangaroo rat: An analysis of monitoring methods and recommendations for future monitoring. Prepared for the United States Fish and Wildlife Service, 51 p.
Diffendorfer, J.E. Chapman, R.E., Duggan, J.M., Fleming G.M., Mitrovitch M., Rahn M.E., and Rosario, R. del., 2002, Coastal Sage Scrub response to disturbance: A literature review and annotated bibliography. Prepared for the California Department of Fish and Game, 87 p.
Diffendorfer, J.E. and Rosario, R. del., 2002, Assessing habitat quality and disturbance in Coastal Sage Scrub using an index of biological integrity: Prepared for California Department of Fish and Game, 29 p.
Diffendorfer, J.E., Chapman, R.E., Duggan, J.M., Fleming, G.M., 2002, An analysis of monitoring data in light of small mammal, plant, and bird responses to disturbance in CSS and the development of an Index of Biological Integrity: Prepared for the California Department of Fish and Game, 33 p.
Diffendorfer, J.E., and Slade, N.S., 2002, Long-distance movements in Cotton Rats (Sigmodon hispidus) and Prairie Voles (Microtus ochrogaster) in Northeastern Kansas: American Midland Naturalist, v. 148, p. 309-319.
Diffendorfer, J.E., Richards, P.M., Dalrymple, G.H., and DeAngelis, D.L., 2001, Applying linear programming to estimate fluxes in ecosystems or food webs: an example from the herpetological assemblages of freshwater Everglades: Ecological Modeling, v. 144, p. 99-120.
Noss R., Allen E., Ballmer, G., Diffendorfer, J.E., Soulé M., Tracy R., and Webb R., 2001, Independent science advisors review: Coachella Valley multiple species habitat conservation plan/natural communities conservation plan (MSHCP/NCCP): Prepared for the United States Fish and Wildlife Service and the California Department of Fish and Game, 53 p.
Rochester, C.J., Diffendorfer, J.E., and Fisher, R.N., 2001, Natural history of the Rosy Boa (Charina trivirgata): Prepared for U.S. Geological Survey-Species at Risk Technical Report. 71p.
Schweiger, E.W., Diffendorfer, J.E., Holt, R.D., Pierotti, R., and Gaines, M.S., 2000, The interaction of habitat fragmentation plant, and small mammal succession in an old field: Ecological Monographs, v. 70, p. 383-400.
Diffendorfer, J.E., Gaines, M.S., and Holt, R.D., 1999, Patterns and impacts of movements at different scales on small mammals: in Barrett, G.W., and Peles, J., eds., The landscape ecology of small mammals: New York, Springer-Verlag, p. 63-88.
Schweiger, E.W., Diffendorfer, J.E., Pierotti, R., and Holt, R.D., 1999, The relative importance of small-scale and landscape-level heterogeneity in structuring small mammal distribution: in Barrett, G.W., and Peles, J.D., ed., landscape ecology of small mammals: Springer-Verlag New York, Inc., p. 175-207.
Diffendorfer, J.E., 1998, Testing models of source-sink dynamics and balanced dispersal: Oikos, v. 81, p. 417-433.
Gaines, M.S., Diffendorfer, J.E., and Lind, L., 1998, The effects of high water on small mammal populations inhabiting hammock islands in Everglades National Park: in Ecological assessment of the 1994-1995 high water conditions in the southern Everglades, National Park Service.
Bassett, A., DeAngelis, D.L., and Diffendorfer, J.E., 1997, The effect of functional response on stability of a grazer population on a landscape: Ecological Modelling, v. 101, p. 153-162.
Gaines, M.S., Diffendorfer, J.E., Tamarin, R.H., and Whittam, T.S., 1997, The effects of habitat fragmentation on the genetic structure of small mammal populations: Journal of Heredity, v. 88, p. 294-304.
Diffendorfer, J.E., Holt, R.D., Slade, N.A., and Gaines, M.S., 1996, Small mammal community patterns in old fields; distinguishing site-specific from regional processes: in Cody, M.L., and Smallwood, J.A., eds., Long-term studies of vertebrate communities: San Diego, CA, Academic Press.
Diffendorfer, J.E., Gaines, M.S. and Holt, R.D., 1995, Habitat fragmentation and the movements of three small mammals (Sigmodon hispidus, Microtus ochrogaster, and Peromyscus maniculatus): Ecology, v. 76, p. 837-839.
Diffendorfer, J.E., Slade, N.A., Gaines, M.S., and Holt, R.D., 1995, Population dynamics of small mammals in fragmented and continuous old-field habitat: in Lidicker, W.Z., ed., Landscape approaches in mammalian ecology and conservation: Minneapolis, USA, University of Minnesota Press, p. 175-199.
Diffendorfer, J.E., 1995, The spatial ecology of small mammals in old fields: a study of movement, demography and community structure in a fragmented landscape: University of Kansas, Ph.D. dissertation, 202 p.
Gaines, M.S., Diffendorfer, J.E., Foster, J., Wray, F.P., and Holt, R.D., 1994, The effects of habitat fragmentation on populations of three species of small mammals in Eastern Kansas: Polish Ecological Studies, v. 20, p. 163-175.
Holt, R.D., Debinski, D.M., Diffendorfer, J.E., Gaines, M.S., and Martinko, E.A., 1994, Perspectives from an experimental study of habitat fragmentation in an agroecosystem: in Glen, D.M., Greaves, M.P., and Anderson, H.M., eds., Ecology and Integrated Farming Systems: New York, Wiley and Sons.
Gaines, M.S., and Diffendorfer, J.E., 1992. Physiological plasticity of electromorphs of blood proteins in free-ranging Microtus ochrogaster: a second look: Ecology, v. 73, p. 1915-1917.
Gaines, M.S., Foster, J., Diffendorfer, J.E., Sera, W.E., Holt, R.D., and Robinson, G.R., 1992, Population processes and biological diversity: Transactions of the North American Wildlife and Natural Resource Conference, v. 57, p. 252-262.
Gaines, M.S., Robinson, G.R., Diffendorfer, J.E., Holt, R.D., and Johnson, M.L., 1992, The effects of habitat fragmentation on small mammal populations: in McCullough, D.R., and Barret, R.H., eds., Wildlife 2001: Populations: London, Elsevier Applied Science, p. 875-885.
Kelly, A., Mateus-Pinilla, N.E., Beissel, T., Diffendorfer, J.E., Killefer, J., Novakofski, J., Shelton, P., 2007, Development of a panel of microsatellite markers for the assessment of genetic structure in white-tailed deer in Northern Illinois and Southern Wisconsin: Journal of neuropathology and experimental neurology, 66:433.
Schweiger, E.W., Diffendorfer, J.E., Pierotti, R., Holt, R.D., 1999, The relative importance of small-scale and level heterogeneity in structuring small mammal distribution, in Barrett, G.W., and Peles, J.D., ed., Landscape ecology of small mammals: Springer-Verlag New York, Inc., 175-207.
**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.
Science and Products
Filter Total Items: 21
No Result Found
Filter Total Items: 106
Assessing local population vulnerability to wind energy development with branching process models: an application to wind energy development Assessing local population vulnerability to wind energy development with branching process models: an application to wind energy development
Quantifying the impact of anthropogenic development on local populations is important for conservation biology and wildlife management. However, these local populations are often subject to demographic stochasticity because of their small population size. Traditional modeling efforts such as population projection matrices do not consider this source of variation whereas individual-based...
Authors
Richard Erickson, Eric A. Eager, Jessica Stanton, Julie Beston, James E. Diffendorfer, Wayne Thogmartin
Onshore industrial wind turbine locations for the United States up to March 2014 Onshore industrial wind turbine locations for the United States up to March 2014
Wind energy is a rapidly growing form of renewable energy in the United States. While summary information on the total amounts of installed capacity are available by state, a free, centralized, national, turbine-level, geospatial dataset useful for scientific research, land and resource management, and other uses did not exist. Available in multiple formats and in a web application...
Authors
James E. Diffendorfer, Louisa Kramer, Zachary Ancona, Christopher Garrity
Insufficient sampling to identify species affected by turbine collisions Insufficient sampling to identify species affected by turbine collisions
We compared the number of avian species detected and the sampling effort during fatality monitoring at 50 North American wind facilities. Facilities with short intervals between sampling events and high effort detected more species, but many facilities appeared undersampled. Species accumulation curves for 2 wind facilities studied for more than 1 year had yet to reach an asymptote. The...
Authors
Julie Beston, James E. Diffendorfer, Scott Loss
Effects of fragmentation on the spatial ecology of the California Kingsnake (Lampropeltis californiae) Effects of fragmentation on the spatial ecology of the California Kingsnake (Lampropeltis californiae)
We investigated the spatial ecology of the California Kingsnake (Lampropeltis californiae) in unfragmented and fragmented habitat with varying patch sizes and degrees of exposure to urban edges. We radiotracked 34 Kingsnakes for up to 3 yr across four site types: interior areas of unfragmented ecological reserves, the urbanized edge of these reserves, large habitat fragments, and small...
Authors
Michael Anguiano, James E. Diffendorfer
Optimizing conservation strategies for Mexican freetailed bats: a population viability and ecosystem services approach Optimizing conservation strategies for Mexican freetailed bats: a population viability and ecosystem services approach
Conservation planning can be challenging due to the need to balance biological concerns about population viability with social concerns about the benefits biodiversity provide to society, often while operating under a limited budget. Methods and tools that help prioritize conservation actions are critical for the management of at-risk species. Here, we use a multi-attribute utility...
Authors
Ruscena Wiederholt, Laura Lopez-Hoffman, Colleen Svancara, Gary McCracken, Wayne Thogmartin, James E. Diffendorfer, Brady Mattson, Kenneth Bagstad, Paul Cryan, Amy Russell, Darius Semmens, Rodrigo Medellin
Preliminary methodology to assess the national and regional impact of U.S. wind energy development on birds and bats Preliminary methodology to assess the national and regional impact of U.S. wind energy development on birds and bats
The U.S. Geological Survey has developed a methodology to assess the impacts of wind energy development on wildlife; it is a probabilistic, quantitative assessment methodology that can communicate to decision makers and the public the magnitude of these effects on species populations. The methodology is currently applicable to birds and bats, focuses primarily on the effects of...
Authors
James E. Diffendorfer, Julie Beston, Matthew D. Merrill, Jessica Stanton, M.D. Corum, Scott R. Loss, Wayne Thogmartin, Douglas Johnson, Richard Erickson, Kevin Heist
A stage-structured, spatially explicit migration model for Myotis bats: mortality location affects system dynamics A stage-structured, spatially explicit migration model for Myotis bats: mortality location affects system dynamics
Bats are ecologically and economically important species because they consume insects, transport nutrients, and pollinate flowers. Many species of bats, including those in the Myotis genus, are facing population decline and increased extinction risk. Despite these conservation concerns, few models exist for providing insight into the population dynamics of bats in a spatially explicit...
Authors
Richard Erickson, Wayne Thogmartin, Robin Russell, James E. Diffendorfer, Jennifer Szymanski
Two decision-support tools for assessing the potential effects of energy development on hydrologic resources as part of the Energy and Environment in the Rocky Mountain Area interactive energy atlas Two decision-support tools for assessing the potential effects of energy development on hydrologic resources as part of the Energy and Environment in the Rocky Mountain Area interactive energy atlas
The U.S. Geological Survey project—Energy and Environment in the Rocky Mountain Area (EERMA)—has developed a set of virtual tools in the form of an online interactive energy atlas for Colorado and New Mexico to facilitate access to geospatial data related to energy resources, energy infrastructure, and natural resources that may be affected by energy development. The interactive energy...
Authors
Joshua Linard, Anne Matherne, Kenneth Leib, Natasha Carr, James E. Diffendorfer, Sarah Hawkins, Natalie Latysh, Drew A. Ignizio, Nils Babel
Carnivore distributions across chaparral habitats exposed to wildfire and rural housing in southern California Carnivore distributions across chaparral habitats exposed to wildfire and rural housing in southern California
Chaparral and coastal sage scrub habitats in southern California support biologically diverse plant and animal communities. However, native plant and animal species within these shrubland systems are increasingly exposed to human-caused wildfires and an expansion of the human–wildland interface. Few data exist to evaluate the effects of fire and anthropogenic pressures on plant and...
Authors
P.A. Schuette, J.E. Diffendorfer, D.H. Deutschman, S. Tremor, W. Spencer
Replacement cost valuation of Northern Pintail (Anas acuta) subsistence harvest in Arctic and sub-Arctic North America Replacement cost valuation of Northern Pintail (Anas acuta) subsistence harvest in Arctic and sub-Arctic North America
Migratory species provide economically beneficial ecosystem services to people throughout their range, yet often, information is lacking about the magnitude and spatial distribution of these benefits at regional scales. We conducted a case study for Northern Pintails (hereafter pintail) in which we quantified regional and sub-regional economic values of subsistence harvest to indigenous...
Authors
Joshua Goldstein, Wayne Thogmartin, Kenneth Bagstad, James Dubovsky, Brady J. Mattsson, Darius Semmens, Laura López-Hoffman, James E. Diffendorfer
Land cover and topography affect the land transformation caused by wind facilities Land cover and topography affect the land transformation caused by wind facilities
Land transformation (ha of surface disturbance/MW) associated with wind facilities shows wide variation in its reported values. In addition, no studies have attempted to explain the variation across facilities. We digitized land transformation at 39 wind facilities using high resolution aerial imagery. We then modeled the effects of turbine size, configuration, land cover, and topography...
Authors
Jay Diffendorfer, Roger Compton
Geospatial optimization of siting large-scale solar projects Geospatial optimization of siting large-scale solar projects
Recent policy and economic conditions have encouraged a renewed interest in developing large-scale solar projects in the U.S. Southwest. However, siting some large-scale solar projects, such as concentrating solar power (CSP), is complex. In addition to the quality of the solar resource, solar developers must take into consideration many environmental, social, and economic factors when...
Authors
Jordan Macknick, Ted Quinby, Emmet Caulfield, Margot Gerritsen, James E. Diffendorfer, Seth Haines
Non-USGS Publications**
Lips, K.A., Diffendorfer, J.E., Mendelson J.R., and Sears, M.W., 2008, Riding the wave: reconciling the role of disease and climate change in amphibian declines: Public Library of Science Biology, v.6, issue 3: e72. doi:10.1371/journal.pbio.0060072.
Sears, M.W., Diffendorfer, J.E., Lips, K.A., and Mendelson, J.R., 2008, Amphibian declines and issues of inference: response to Parmesan and Singer. Public Library of Science Biology.
Kelly, A.C., Mateus-Pinilla, N.E., Diffendorfer, J.E., Jewell, E., Ruiz, M.O., Killefer, J., Shelton, P., Beissel, T., and Novakofski, J., 2008, Prion sequence polymorphisms and chronic wasting disease resistance in Illinois white-tailed deer (Odocoileus virginianus): Prion, v. 2, p. 1-9.
Diffendorfer, J.E., Fleming, G.M., Duggan, J.M., Chapman, R.E., Rahn, M.E., Mitrovitch, M.J., and Fisher, R.N., 2007, Developing terrestrial, multi-taxon indices of biological integrity: An example from coastal sage scrub: Biological Conservation, v. 140, p. 130-141.
Diffendorfer, J.E., Spencer, W.S., Tremor, S., and Beyers, J., 2007, Effects of fire severity and distance from unburned edge on mammalian community post-fire recovery: Final Report for project 04-2-1-94 to the Joint Fire Sciences Program: 37 p.
Mateus-Pinilla, N.E., Novakofski, J.E., Kelly, A., Diffendorfer, J.E., Pinkerton, M., Whittington, J.K., and Ruiz, M., 2007, W-146-R-02 Annual federal aid performance report, wildlife and chronic wasting disease surveillance: Illinois Department of Natural Resources, 19p.
Mateus-Pinilla, N.E., Novakofski, J.E., Kelly, A., Diffendorfer, J.E., Pinkerton, M., Whittington, J.K., and Ruiz, M., 2006, W-146-R-01 Annual Federal Aid Performance Report, wildlife and chronic wasting disease surveillance: Illinois Department of Natural Resources, 34p.
Mateus-Pinilla, N.E., Novakofski, J.E., Diffendorfer, J.E., Killefer, J., 2006, Genetic relatedness and gene flow of white-tailed deer (Odocoileus virginianus) in the chronic wasting disease prevalent region of Illinois: Illinois Department of Natural Resources and International Association of Fish and Wildlife Agencies (IAFWA).
Rahn, M.E., Doremus, H., and Diffendorfer, J.E., 2006, Species coverage in multispecies habitat conservation plans: Where's the science? BioScience, v. 56, p. 613-619.
Mendelson, J.R., Lips, K.R., Gagliardo, R.W., Rabb, G. B., Collins, J.P., Diffendorfer, J.E., Daszak, P., D Ibáñez, R., Zippel, K.C., Lawson, D.P., Wright, K.M., Stuart, S.N., Gascon, C., da Silva, H.R., Burrowes, P.A., Joglar, R.L., La Marca, E., Lötters, S., du Preez, L.H., Weldon, C., Hyatt, A., Rodriguez-Mahecha, J.V., Hunt, S., Robertson, H. Lock, B., Raxworthy, C.J., Frost, D.R., Lacy, R.C., Alford, R.A., Campbell, J.A., Parra-Olea, G. Bolaños, F, Domingo, J.J.C., Halliday, T., Murphy, J.B., Wake, M.H., Coloma, L.A., Kuzmin, S.L., Price, M.S., Howell, K.M., Lau, M., Pethiyagoda, R., Boone, M., Lannoo, M. J., Blaustein, A. R., Dobson, A., Griffiths, R.A., Wake, D.B., Brodie Jr E.D., 2006, Confronting amphibian declines and extinctions: Science, v. 313, 48 p.
Mendelson, J.R., Lips, K.R., Diffendorfer, J.E., Gagliardo, R.W., Rabb, G.B., Collins, J.P., , Daszak, P., Ibáñez, R., Zippel, K.C., Stuart, S.N., Gascon, C., da Silva, Burrowes, P.A., Lacy, R.C., Bolaños, F, Coloma, L.A., Wright, K.M., Wake, D. B. 2006. Response to: Pounds et al.: responding to amphibian loss: Science, v. 314, p. 1541-1542.
Diffendorfer, J.E., Rochester, C., Fisher, R.N., and Brown, T.K., 2005, Movement and space use by coastal rosy boas (Lichanura trivirgata roseofusca) in Coastal Southern California: Journal of Herpetology, v. 39, p. 24-36.
Morris, D.W., Diffendorfer, J.E., and Lundberg, P., 2004, Dispersal among habitats varying in fitness: reciprocating migration through ideal habitat selection: Oikos, v. 107, p. 559-575.
Morris D.W., and Diffendorfer, J.E., 2004, Reciprocating dispersal by habitat-selecting white-footed mice: Oikos v. 107, p. 549-558.
Diffendorfer, J.E., and Doherty P.F., 2004, Lifting Cassandra's curse: Conservation Biology v. 18, p. 600.
Diffendorfer, J.E., Fleming G.M., Duggan, J., Chapman R., Hogan, D., 2004, Final report for creating and index of biological integrity for coastal sage scrub: A tool for habitat quality assessment and monitoring: Prepared for California Department of Fish and Game. 248 p.
Gaines, M.S., Sasso, C.R., Diffendorfer, J.E., and Beck, H., 2003, Effects of tree island size and water on the population dynamics of small mammals in the Everglades: in van der Valk, A., and Sklar, F., ed., Tree Islands of the Everglades: Kluwer Academic.
Betzler, J., Diffendorfer, J.E., Fleury, S., Hawke, M., Klein, M., Morrison, S., Nichols, G., Oberbauer, T., Rochester, C., Webb, M., and Williams, K., 2003, A summary of affected flora and fauna in the San Diego County fires of 2003: Burned Area Emergency Response (BAER) Program Reports, 36 p. + Appendices.
Diffendorfer, J.E. and Deutschman D.D., 2003, Monitoring the Stephen’s kangaroo rat: An analysis of monitoring methods and recommendations for future monitoring. Prepared for the United States Fish and Wildlife Service, 51 p.
Diffendorfer, J.E. Chapman, R.E., Duggan, J.M., Fleming G.M., Mitrovitch M., Rahn M.E., and Rosario, R. del., 2002, Coastal Sage Scrub response to disturbance: A literature review and annotated bibliography. Prepared for the California Department of Fish and Game, 87 p.
Diffendorfer, J.E. and Rosario, R. del., 2002, Assessing habitat quality and disturbance in Coastal Sage Scrub using an index of biological integrity: Prepared for California Department of Fish and Game, 29 p.
Diffendorfer, J.E., Chapman, R.E., Duggan, J.M., Fleming, G.M., 2002, An analysis of monitoring data in light of small mammal, plant, and bird responses to disturbance in CSS and the development of an Index of Biological Integrity: Prepared for the California Department of Fish and Game, 33 p.
Diffendorfer, J.E., and Slade, N.S., 2002, Long-distance movements in Cotton Rats (Sigmodon hispidus) and Prairie Voles (Microtus ochrogaster) in Northeastern Kansas: American Midland Naturalist, v. 148, p. 309-319.
Diffendorfer, J.E., Richards, P.M., Dalrymple, G.H., and DeAngelis, D.L., 2001, Applying linear programming to estimate fluxes in ecosystems or food webs: an example from the herpetological assemblages of freshwater Everglades: Ecological Modeling, v. 144, p. 99-120.
Noss R., Allen E., Ballmer, G., Diffendorfer, J.E., Soulé M., Tracy R., and Webb R., 2001, Independent science advisors review: Coachella Valley multiple species habitat conservation plan/natural communities conservation plan (MSHCP/NCCP): Prepared for the United States Fish and Wildlife Service and the California Department of Fish and Game, 53 p.
Rochester, C.J., Diffendorfer, J.E., and Fisher, R.N., 2001, Natural history of the Rosy Boa (Charina trivirgata): Prepared for U.S. Geological Survey-Species at Risk Technical Report. 71p.
Schweiger, E.W., Diffendorfer, J.E., Holt, R.D., Pierotti, R., and Gaines, M.S., 2000, The interaction of habitat fragmentation plant, and small mammal succession in an old field: Ecological Monographs, v. 70, p. 383-400.
Diffendorfer, J.E., Gaines, M.S., and Holt, R.D., 1999, Patterns and impacts of movements at different scales on small mammals: in Barrett, G.W., and Peles, J., eds., The landscape ecology of small mammals: New York, Springer-Verlag, p. 63-88.
Schweiger, E.W., Diffendorfer, J.E., Pierotti, R., and Holt, R.D., 1999, The relative importance of small-scale and landscape-level heterogeneity in structuring small mammal distribution: in Barrett, G.W., and Peles, J.D., ed., landscape ecology of small mammals: Springer-Verlag New York, Inc., p. 175-207.
Diffendorfer, J.E., 1998, Testing models of source-sink dynamics and balanced dispersal: Oikos, v. 81, p. 417-433.
Gaines, M.S., Diffendorfer, J.E., and Lind, L., 1998, The effects of high water on small mammal populations inhabiting hammock islands in Everglades National Park: in Ecological assessment of the 1994-1995 high water conditions in the southern Everglades, National Park Service.
Bassett, A., DeAngelis, D.L., and Diffendorfer, J.E., 1997, The effect of functional response on stability of a grazer population on a landscape: Ecological Modelling, v. 101, p. 153-162.
Gaines, M.S., Diffendorfer, J.E., Tamarin, R.H., and Whittam, T.S., 1997, The effects of habitat fragmentation on the genetic structure of small mammal populations: Journal of Heredity, v. 88, p. 294-304.
Diffendorfer, J.E., Holt, R.D., Slade, N.A., and Gaines, M.S., 1996, Small mammal community patterns in old fields; distinguishing site-specific from regional processes: in Cody, M.L., and Smallwood, J.A., eds., Long-term studies of vertebrate communities: San Diego, CA, Academic Press.
Diffendorfer, J.E., Gaines, M.S. and Holt, R.D., 1995, Habitat fragmentation and the movements of three small mammals (Sigmodon hispidus, Microtus ochrogaster, and Peromyscus maniculatus): Ecology, v. 76, p. 837-839.
Diffendorfer, J.E., Slade, N.A., Gaines, M.S., and Holt, R.D., 1995, Population dynamics of small mammals in fragmented and continuous old-field habitat: in Lidicker, W.Z., ed., Landscape approaches in mammalian ecology and conservation: Minneapolis, USA, University of Minnesota Press, p. 175-199.
Diffendorfer, J.E., 1995, The spatial ecology of small mammals in old fields: a study of movement, demography and community structure in a fragmented landscape: University of Kansas, Ph.D. dissertation, 202 p.
Gaines, M.S., Diffendorfer, J.E., Foster, J., Wray, F.P., and Holt, R.D., 1994, The effects of habitat fragmentation on populations of three species of small mammals in Eastern Kansas: Polish Ecological Studies, v. 20, p. 163-175.
Holt, R.D., Debinski, D.M., Diffendorfer, J.E., Gaines, M.S., and Martinko, E.A., 1994, Perspectives from an experimental study of habitat fragmentation in an agroecosystem: in Glen, D.M., Greaves, M.P., and Anderson, H.M., eds., Ecology and Integrated Farming Systems: New York, Wiley and Sons.
Gaines, M.S., and Diffendorfer, J.E., 1992. Physiological plasticity of electromorphs of blood proteins in free-ranging Microtus ochrogaster: a second look: Ecology, v. 73, p. 1915-1917.
Gaines, M.S., Foster, J., Diffendorfer, J.E., Sera, W.E., Holt, R.D., and Robinson, G.R., 1992, Population processes and biological diversity: Transactions of the North American Wildlife and Natural Resource Conference, v. 57, p. 252-262.
Gaines, M.S., Robinson, G.R., Diffendorfer, J.E., Holt, R.D., and Johnson, M.L., 1992, The effects of habitat fragmentation on small mammal populations: in McCullough, D.R., and Barret, R.H., eds., Wildlife 2001: Populations: London, Elsevier Applied Science, p. 875-885.
Kelly, A., Mateus-Pinilla, N.E., Beissel, T., Diffendorfer, J.E., Killefer, J., Novakofski, J., Shelton, P., 2007, Development of a panel of microsatellite markers for the assessment of genetic structure in white-tailed deer in Northern Illinois and Southern Wisconsin: Journal of neuropathology and experimental neurology, 66:433.
Schweiger, E.W., Diffendorfer, J.E., Pierotti, R., Holt, R.D., 1999, The relative importance of small-scale and level heterogeneity in structuring small mammal distribution, in Barrett, G.W., and Peles, J.D., ed., Landscape ecology of small mammals: Springer-Verlag New York, Inc., 175-207.
**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.