Research Article
Greater Sage-Grouse Response to the Physical Footprint of Energy Development
Christopher P. Kirol,
Kurt T. Smith,
Nicholas E. Graf,
Jonathan B. Dinkins,
Chad W. Lebeau,
Thomas L. Maechtle,
Andrew L. Sutphin,
Jeffrey L. Beck,
Corresponding Author
Christopher P. Kirol
Department of Ecosystem Science and Management, University of Wyoming, Laramie, WY, 82071 USA
Present address: School of Environment, Resources and Sustainability, University of Waterloo, Waterloo, Ontario, Canada
E-mail: [email protected]
Search for more papers by this authorKurt T. Smith
Department of Ecosystem Science and Management, University of Wyoming, Laramie, WY, 82071 USA
Search for more papers by this authorNicholas E. Graf
Wyoming Geographic Information Science Center, University of Wyoming, Laramie, WY, 82071 USA
Search for more papers by this authorJonathan B. Dinkins
Department of Ecosystem Science and Management, University of Wyoming, Laramie, WY, 82071 USA
Present address: Department of Animal and Rangeland Sciences, Oregon State University, 112 Withycombe Hall, 2921 SW Campus Way, Corvallis, OR 97331, USA
Search for more papers by this authorChad W. Lebeau
Western EcoSystems Technology, Inc., 200 South 2nd St., Suite B, Laramie, WY, 82070 USA
Search for more papers by this authorThomas L. Maechtle
Big Horn Environmental Consultants, 730 E. Burkitt, Sheridan, WY, 82801 USA
Deceased
Search for more papers by this authorAndrew L. Sutphin
Big Horn Environmental Consultants, 730 E. Burkitt, Sheridan, WY, 82801 USA
Search for more papers by this authorJeffrey L. Beck
Department of Ecosystem Science and Management, University of Wyoming, Laramie, WY, 82071 USA
Search for more papers by this authorChristopher P. Kirol,
Kurt T. Smith,
Nicholas E. Graf,
Jonathan B. Dinkins,
Chad W. Lebeau,
Thomas L. Maechtle,
Andrew L. Sutphin,
Jeffrey L. Beck,
Corresponding Author
Christopher P. Kirol
Department of Ecosystem Science and Management, University of Wyoming, Laramie, WY, 82071 USA
Present address: School of Environment, Resources and Sustainability, University of Waterloo, Waterloo, Ontario, Canada
E-mail: [email protected]
Search for more papers by this authorKurt T. Smith
Department of Ecosystem Science and Management, University of Wyoming, Laramie, WY, 82071 USA
Search for more papers by this authorNicholas E. Graf
Wyoming Geographic Information Science Center, University of Wyoming, Laramie, WY, 82071 USA
Search for more papers by this authorJonathan B. Dinkins
Department of Ecosystem Science and Management, University of Wyoming, Laramie, WY, 82071 USA
Present address: Department of Animal and Rangeland Sciences, Oregon State University, 112 Withycombe Hall, 2921 SW Campus Way, Corvallis, OR 97331, USA
Search for more papers by this authorChad W. Lebeau
Western EcoSystems Technology, Inc., 200 South 2nd St., Suite B, Laramie, WY, 82070 USA
Search for more papers by this authorThomas L. Maechtle
Big Horn Environmental Consultants, 730 E. Burkitt, Sheridan, WY, 82801 USA
Deceased
Search for more papers by this authorAndrew L. Sutphin
Big Horn Environmental Consultants, 730 E. Burkitt, Sheridan, WY, 82801 USA
Search for more papers by this authorJeffrey L. Beck
Department of Ecosystem Science and Management, University of Wyoming, Laramie, WY, 82071 USA
Search for more papers by this authorABSTRACT
Energy infrastructure and associated habitat loss can lead to reduced reproductive rates for a variety of species including the greater sage-grouse (Centrocercus urophasianus). Our goal was to refine our understanding of how the physical footprint of energy development relates to sage-grouse nest and brood survival. Our survival analyses were conditional upon the amount of surface disturbance female sage-grouse were exposed to during reproductive stages. We quantified levels of exposure and compared them to the surface disturbance levels of the surrounding area. From 2008–2014, we collected data in 6 study areas in Wyoming, USA, containing 4 primary types of renewable and nonrenewable energy development. Our research focused on press disturbance (i.e., disturbance sustained after initial disturbance and associated with existing energy infrastructure and human activity). Our results suggest exposure to press disturbance during nesting and brood-rearing was related to lower nest and brood survival, which manifested at different spatial scales. Our analysis of nest survival suggested that the likelihood of a successful nest was negatively associated with the amount of press disturbance within an 8-km² area. Broods exposed to any press disturbance within a 1-km2 area were less likely to survive compared to broods not exposed to press disturbance. Female sage-grouse consistently used habitat with lower disturbance levels during reproductive periods. Greater than 90% of nest and brood-rearing locations were in habitat with <3% press disturbance within a 2.7-km2 area. Our research links surface disturbance associated with press disturbance to reproductive costs incurred by sage-grouse exposed to diverse energy development. Our results demonstrate a pattern of female avoidance of areas where press disturbance was high during nesting and brood-rearing and survival of nests and broods were highest in areas that had the least amount of disturbance. Our findings underscore the importance of minimizing disturbance to maintain viable sage-grouse populations. © 2020 The Wildlife Society.
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LITERATURE CITED
- Aldridge, C. L., and M. S. Boyce. 2007. Linking occurrence and fitness to persistence: habitat-based approach for endangered greater sage-grouse. Ecological Applications 17: 508–526.
- Aldridge, C. L., D. J. Saher, T. M. Childers, K. E. Stahlnecker, and Z. H. Bowen. 2012. Crucial nesting habitat for Gunnison sage-grouse: a spatially explicit hierarchical approach. Journal of Wildlife Management 76: 391–406.
- Allred, B. W., K. W. Smith, D. Twidwell, J. H. Haggerty, S. W. Running, D. E. Naugle, and S. D. Fuhlendorf. 2015. Ecosystem services lost to oil and gas in North America: net primary production reduced in crop and rangelands. Science 348: 401–402.
- Anderson, P. K., and R. D. Gill. 1982. Cox's regression model for counting processes: a large sample study. Annals of Statistics 10: 1100–1120.
- Arnold, T. W. 2010. Uninformative parameters and model selection using Akaike's Information Criterion. Journal of Wildlife Management 74: 1175–1178.
- Beckmann, J. P., K. Murray, R. G. Seidler, and J. Berger. 2012. Human-mediated shifts in animal habitat use: sequential changes in pronghorn use of a natural gas field in Greater Yellowstone. Biological Conservation 147: 222–233.
- Bolker, B. M., M. E. Brooks, C. J. Clark, S. W. Geange, J. R. Poulsen, M. H. Stevens, and J. S. White. 2009. Generalized linear mixed models: a practical guide for ecology and evolution. Trends in Ecology and Evolution 24: 127–135.
- Buchanan, C. B., J. L. Beck, T. E. Bills, and S. N. Miller. 2014. Seasonal resource selection and distributional response by elk to development of a natural gas field. Rangeland Ecology and Management 67: 369–379.
- Burnham, K. P., and D. R. Anderson. 2002. Model selection and inference: a practical information-theoretic approach. Second edition. Springer-Verlag, New York, New York, USA.
- Buskirk, S. W., and J. J. Millspaugh. 2003. Defining availability and selecting currencies of use: key steps in modeling resource selection. Pages 1–11 in S. Huzurbazar, editor. Resource selection methods and application. Western EcoSystems Technology, Incorporated, Cheyenne, Wyoming, USA.
- Carlisle, J. D., A. D. Chalfoun, K. T. Smith, and J. L. Beck. 2018. Nontarget effects on songbirds from habitat manipulation for greater sage-grouse: implications for the umbrella species concept. Condor: Ornithological Applications 120: 439–455.
- Chambers, J. C., J. L. Beck, J. B. Bradford, J. Bybee, S. Campbell, J. Carlson, T. J. Christiansen, K. J. Clause, G. Collins, M. R. Crist, et al. 2017. Science framework for conservation and restoration of the sagebrush biome: linking the Department of the Interior's Integrated Rangeland Fire Management Strategy to long-term strategic conservation actions. Part 1. Science basis and applications. General Technical Report RMRS-GTR-360. U.S Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fort Collins, Colorado, USA.
- Connelly, J. W., C. A. Hagen, and M. A. Schroeder. 2011. Characteristics and dynamics of greater sage-grouse populations. Pages 53–67 in S. T. Knick and J. W. Connelly, editors. Greater sage-grouse: ecology and conservation of a landscape species and its habitats. Studies in Avian Biology 38. University of California Press, Berkeley, USA.
10.1525/california/9780520267114.003.0004 Google Scholar
- Connelly, J. W., S. T. Knick, M. A. Schroeder, and S. J. Stiver. 2004. Conservation assessment of greater sage-grouse and sagebrush habitats. Western Association of Fish and Wildlife Agencies, Cheyenne, Wyoming, USA.
- Copeland, H. E., K. E. Doherty, D. E. Naugle, A. Pocewicz, and J. M. Kiesecker. 2009. Mapping oil and gas development potential in the US Intermountain West and estimating impacts to species. PLoS ONE 4(10):e7400.
- Copeland, H. E., A. Pocewicz, and J. M. Kiesecker. 2011. Geography of energy development in western North America: potential impacts on terrestrial ecosystems. Pages 7–22 in D. E. Naugle, editor. Energy development and wildlife conservation in western North America. Island Press, Washington, D.C., USA.
10.5822/978-1-61091-022-4_2 Google Scholar
- Dahlgren, D. K., R. Chi, and T. A. Messmer. 2006. Greater sage-grouse response to sagebrush management in Utah. Wildlife Society Bulletin 34: 975–985.
- Dahlgren, D. K., T. A. Messmer, E. T. Thacker, and M. R. Guttery. 2010. Evaluation of brood detection techniques: recommendations for estimating greater sage-grouse productivity. Western North American Naturalist 70: 233–237.
- Dalke, P. D., D. B. Pyrah, D. C. Stanton, J. E. Crawford, and E. F. Schlatterer. 1963. Ecology, productivity, and management of sage grouse in Idaho. Journal of Wildlife Management 27: 811–841.
10.2307/3798496 Google Scholar
- Davies, K. W., C. S. Boyd, J. L. Beck, J. D. Bates, T. J. Svejcar, and M. A. Gregg. 2011. Saving the sagebrush sea: an ecosystem conservation plan for big sagebrush plant communities. Biological Conservation 144: 2573–2584.
- Dinkins, J. B., M. R. Conover, C. P. Kirol, J. L. Beck, and S. N. Frey. 2014. Greater sage-grouse (Centrocercus urophasianus) select habitat based on avian predators, landscape composition, and anthropogenic features. Condor: Ornithological Applications 116: 629–642.
- Dinsmore, S. J., G. C. White, and F. L. Knopf. 2002. Advanced techniques for modeling avian nest survival. Ecology 83: 3476–3488.
- Doherty, K. E., J. S. Evans, P. S. Coates, L. M. Juliusson, and B. C. Fedy. 2016. Importance of regional variation in conservation planning and defining thresholds for a declining species: a range-wide example of the greater sage-grouse. Ecosphere 7(10):e01462.
- Doherty, K. E., D. E. Naugle, H. E. Copeland, A. Pocewicz, and J. M. Kiesecker. 2011. Energy development and conservation tradeoffs: systematic planning for greater sage-grouse in their eastern range. Pages 505–548 in S. T. Knick and J. W. Connelly, editors. Greater sage-grouse: ecology and conservation of a landscape species and its habitats. Studies in Avian Biology 38. University of California Press, Berkeley, USA.
10.1525/california/9780520267114.003.0022 Google Scholar
- 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.
- Eng, R. L. 1955. A method for obtaining sage grouse age and sex ratios from wings. Journal Wildlife Management 19: 267–272.
10.2307/3796862 Google Scholar
- Evans, J. S., J. Oakleaf, S. A. Cushman, and D. Theobald. 2014. An ArcGIS toolbox for surface gradient and geomorphometric modeling, version 2.0-0. <http://evansmurphy.wix.com/evansspatial>. Accessed 1 May 2015.
- Fedy, B. S., C. L. Aldridge, K. E. Doherty, M. O'Donnell, J. L. Beck, B. Bedrosian, M. J. Holloran, G. D. Johnson, N. W. Kaczor, C. P. Kirol, et al. 2012. Interseasonal movements of greater sage-grouse, migratory behavior, and an assessment of the core regions concept in Wyoming. Journal of Wildlife Management 76: 1062–1071.
- Fedy, B. S., K. E. Doherty, C. L. Aldridge, M. O'Donnell, J. L. Beck, B. Bedrosian, D. Gummer, M. J. Holloran, G. D. Johnson, N. W. Kaczor, et al. 2014. Habitat prioritization across large landscapes, multiple seasons, and novel areas: an example using sage-grouse in Wyoming. Wildlife Monographs 190: 1–39.
- Fedy, B. C., C. P. Kirol, A. L. Sutphin, and T. L. Maechtle. 2015. The influence of mitigation on sage-grouse habitat selection within an energy development field. PLoS ONE 10(4):e0121603.
- Foster, L. J., K. M. Dugger, C. A. Hagen, and D. A. Budeau. 2018. Greater sage-grouse vital rates after wildfire. Journal of Wildlife Management 83: 121–134.
- Gamo, R. S., and J. L. Beck. 2017. Effectiveness of Wyoming's Sage-Grouse Core Area policy: influences on energy development and male lek attendance. Environmental Management 59: 189–203.
- Gamo, R. S., J. D. Carlisle, J. L. Beck, J. A. C. Bernard, and M. E. Herget. 2013. Greater sage-grouse in Wyoming: an umbrella species for sagebrush dependent wildlife. Wildlife Professional 7: 56–59.
- Germaine, S. S., S. K. Carter, D. A. Ignizio, and A. T. Freeman. 2017. Relationships between gas field development and the presence and abundance of pygmy rabbits in southwestern Wyoming. Ecosphere 8(5):e01817.
- Gibson, D., E. J. Blomber, M. T. Atamian, S. P. Espinosa, and J. S. Sedinger. 2018. Effects of power lines on habitat use and demography of greater sage-grouse (Centrocercus urophasianus). Wildlife Monographs 200: 1–41.
- Giesen, K. M., T. J. Schoenberg, and C. E. Braun. 1982. Methods for trapping sage grouse in Colorado. Wildlife Society Bulletin 10: 224–231.
- Gilbert, M. M., and A. D. Chalfoun. 2011. Energy development affects populations of sagebrush songbirds in Wyoming. Journal of Wildlife Management 75: 816–824.
- Green, A. W., C. L. Aldridge, and M. S. O'Donnell. 2017. Investigating impacts of oil and gas development on greater sage-grouse. Journal of Wildlife Management 81: 46–57.
- Gregg, M. A., M. R. Dunbar, and J. A. Crawford. 2007. Use of implanted radio-transmitters to estimate survival of greater sage-grouse chicks. Journal of Wildlife Management 71: 646–651.
- Guttery, M. R., D. K. Dahlgren, T. A. Messmer, J. W. Connelly, K. P. Reese, P. A. Terletzky, N. Burkepile, and D. N. Koons. 2013. Effects of landscape-scale environmental variation on greater sage-grouse chick survival. PLoS ONE 8(6):e0065582.
- Hebblewhite, M. 2017. Energy sprawl and wildlife conservation. Pages 39–50 in J. M. Kiesecker and D. E. Naugle, editors. Energy sprawl solutions. Island Press, Washington, D.C., USA.
10.5822/978-1-61091-723-0_3 Google Scholar
- Hethcoat, M. G., and A. D. Chalfoun. 2015. Energy development and avian nest survival in Wyoming, USA: a test of a common disturbance index. Biological Conservation 184: 327–334.
- Holloran, M. J., and S. H. Anderson. 2005. Spatial distribution of greater sage-grouse nests in relatively contiguous sagebrush habitats. Condor 107: 742–752.
- Holloran, M. J., B. J. Heath, A. G. Lyon, D. J. Slater, J. L. Kuipers, and S. H. Anderson. 2005. Greater sage-grouse nesting habitat selection and success in Wyoming. Journal of Wildlife Management 69: 638–649.
- Holloran, M. J., R. C. Kaiser, and W. A. Hubert. 2010. Yearling greater sage-grouse response to energy development in Wyoming. Journal of Wildlife Management 74: 65–72.
- Homer, C. G., C. L. Aldridge, D. K. Meyer, and S. J. Schell. 2012. Multi-scale remote sensing sagebrush characterization with regression trees over Wyoming, USA: laying a foundation for monitoring. International Journal of Applied Earth Observation and Geoinformation 14: 233–244.
- Hosmer, D. W., and S. Lemeshow. 2008. Applied survival analysis: regression modeling of time to event data. Second edition. John Wiley and Sons, New York, New York, USA.
10.1002/9780470258019 Google Scholar
- Hovick, T. J., R. D. Elmore, D. K. Dahlgren, S. D. Fuhlendorf, and D. M. Engle. 2014. Evidence of negative effects of anthropogenic structures on wildlife: a review of grouse survival and behavior. Journal of Applied Ecology 51: 1680–1689.
- Huggett, A. J. 2005. The concept and utility of “ecological thresholds” in biodiversity conservation. Biological Conservation 124: 301–310.
- Johnson, C. S., and M.-H. St-Laurent. 2011. Unifying framework for understanding impacts of human developments on wildlife. Pages 7–22 in D. E. Naugle, editor. Energy development and wildlife conservation in western North America. Island Press, Washington, D.C., USA.
10.5822/978-1-61091-022-4_3 Google Scholar
- Johnson, D. H. 1980. The comparison of usage and availability measurements for evaluating resource preference. Ecology 61: 65–71.
- Kéry, M., and J. A. Royle. 2016. Applied hierarchical modeling in ecology: analysis of distribution, abundance and species richness in R and BUGS. Volume 1, prelude and static models. Academic Press, London, United Kingdom.
- Kirol, C. P., J. L. Beck, J. B. Dinkins, and M. R. Conover. 2012. Microhabitat selection for nesting and brood-rearing by the greater sage-grouse in xeric big sagebrush. Condor 114: 75–89.
- Kirol, C. P., J. L. Beck, S. V. Huzurbazar, M. J. Holloran, and S. N. Miller. 2015a. Identifying greater sage-grouse source and sink habitats for conservation planning in an energy development landscape. Ecological Applications 25: 968–990.
- Kirol, C. P., A. L. Sutphin, L. Bond, M. R. Fuller, and T. M. Maechtle. 2015b. Mitigation effectiveness for improving nesting success of greater sage-grouse influenced by energy development. Wildlife Biology 21: 98–109.
- Knick, S. T., D. S. Dobkin, J. T. Rotenberry, M. A. Schroder, W. M. Vander Haegen, and C. Van Riper III. 2003. Teetering on the edge or too late? Conservation and research issues for avifauna of sagebrush habitats. Condor 105: 611–634.
- Knick, S. T., S. E. Hanser, and K. L. Preston. 2013. Modeling ecological minimum requirements for distribution of greater sage-grouse leks: implications for population connectivity across their western range, U.S.A. Ecology and Evolution 3: 1539–1551.
- LeBeau, C. W., G. D. Johnson, M. J. Holloran, J. L. Beck, R. M. Nielson, M. E. Kauffman, E. J. Rodemaker, and T. L. McDonald. 2017. Greater sage-grouse habitat selection, survival, and wind energy infrastructure. Journal of Wildlife Management 81: 690–711.
- Morrison, M. L., W. M. Block, M. D. Strickland, and W. L. Kendall. 2008. Wildlife study design. Second edition. Springer-Verlag, New York, New York, USA.
10.1007/978-0-387-75528-1 Google Scholar
- Naugle, D. E., K. E. Doherty, B. L. Walker, H. E. Copeland, H. J. Holloran, and J. D. Tack. 2011. Sage-grouse and cumulative impacts of energy development. Pages 55–70 in D. E. Naugle, editor. Energy development and wildlife conservation in western North America. Island Press, Washington, D.C., USA.
10.5822/978-1-61091-022-4_4 Google Scholar
- Noss, R. F., E. T. LaRoe III, and J. M. Scott. 1995. Endangered ecosystems of the United States: a preliminary assessment of loss and degradation. National Biological Service Biological Report 28, Washington, D.C., USA.
- Nur, N., A. L. Holmes, and G. R. Geupel. 2004. Use of survival time analysis to analyze nesting success in birds: an example using loggerhead shrikes. Condor 106: 457–471.
- PRISM Climate Group. 2016. Oregon State University. <http://prism.oregonstate.edu>. Accessed 10 Jul 2015.
- Rice, M. B., L. G. Rossi, and A. D. Apa. 2016. Seasonal habitat use by greater sage-grouse (Centrocercus urophasianus) on a landscape with low density oil and gas development. PLoS ONE 11(1):e0165399.
- Ryan, K. C., and T. S. Opperman. 2013. LANDFIRE–a national vegetation/fuels data base for use in fuels treatment, restoration, and suppression planning. Forest Ecology and Management 294: 208–216.
- Sawyer, H., R. M. Nielson, F. Lindzey, and L. L. McDonald. 2006. Winter habitat selection of mule deer before and during development of a natural gas field. Journal of Wildlife Management 70: 396–403.
- Shaffer, T. L. 2004. A unified approach to analyzing nest success. Auk 121: 526–540.
- Smith, K. T., and J. L. Beck. 2018. Sagebrush treatments influence annual population change for greater sage-grouse. Restoration Ecology 26: 497–505.
- Smith, K. T., J. L. Beck, and C. P. Kirol. 2018. Reproductive state leads to intraspecific habitat partitioning and survival differences in greater sage-grouse: implications for conservation. Wildlife Research 45: 119–131.
- Smith, K. T., C. P. Kirol, J. L. Beck, and F. C. Blomquist. 2014. Prioritizing winter habitat quality for greater sage-grouse in a landscape influenced by energy development. Ecosphere 5: 1–20.
- State of Wyoming. 2019. Greater sage-grouse Core Area protection. Office of the Governor, Executive Order Number 2019-3. State of Wyoming, Cheyenne, USA. <https://wgfd.wyo.gov/Habitat/Sage-Grouse-Management/Sage-Grouse-Executive-Order>. Accessed 8 Feb 2020.
- Sutphin, A. L., T. L. Maechtle, C. P. Kirol, and B. C. Fedy. 2018. A mobile tool for capturing greater sage-grouse. Wildlife Society Bulletin 42: 504–509.
- Taylor, R. L., B. L. Walker, D. E. Naugle, and L. S. Mills. 2012. Managing multiple vital rates to maximize greater sage-grouse population growth. Journal of Wildlife Management 76: 336–347.
- Theobald, D. M. 2007. LCaP v1.0: Landscape connectivity and pattern tools for ArcGIS. Colorado State University, Fort Collins, USA.
- Therneau, T. 2015. coxme: Mixed effects Cox models. R package version 2.24. <http://CRAN.R-project.org/package=coxme>. Accessed 1 Nov 2016.
- U.S. Bureau of Land Management [BLM]. 2015a. BLM, USFS greater sage-grouse conservation effort. Fact sheet. <https://www.blm.gov/sites/blm.gov/files/BLM-USFS%20Sage-grouse%20Plans%20Fact%20Sheet%20Final915.pdf>. Accessed 6 Sep 2017.
- U.S. Bureau of Land Management [BLM]. 2015b. Record of Decision and approved resource management plan amendments for the Great Basin region, including the greater sage-grouse sub-regions of Idaho and southwestern Montana, Nevada and Northeastern California, Oregon, Utah. <https://www.blm.gov/learn/blm-library/subject-guides/greater-sage-grouse-subject-guide/documents-and-resources>. Accessed 18 Feb 2020.
- U.S. Energy Information Administration. 2016. Wyoming state energy profile. <https://www.eia.gov/state/print.php?sid=WY>. Accessed 6 Sep 2017.
- Wakkinen, W. L., K. P. Reese, J. W. Connelly, and R. A. Fischer. 1992. An improved spotlighting technique for capturing sage grouse. Wildlife Society Bulletin 20: 425–426.
- Walker, B. L., K. E. Doherty, and D. E. Naugle. 2006. Spotlight counts: a new method for assessing chick survival in greater sage-grouse. Proceedings of the 25th Meeting of the Western Agencies Sage and Columbian Sharp-tailed Grouse Technical Committee, Spearfish, South Dakota, USA.
- Wallestad, R. O., and B. D. Pyrah. 1974. Movement and nesting of sage grouse females in central Montana. Journal of Wildlife Management 38: 630–633.
- Webb, S. L., C. V. Olson, M. R. Dzialak, S. M. Harju, J. B. Winstead, and D. Lockman. 2012. Landscape features and weather influence nest survival of a ground-nesting bird of conservation concern, the greater sage-grouse, in human-altered environments. Ecological Processes 1: 1–15.
10.1186/2192-1709-1-4 Google Scholar
- With, K. A., and A. W. King. 1999. Extinction thresholds for species in fractal landscapes. Conservation Biology 13: 314–326.
