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Habitat suitability of patch types: A case study of the Yosemite toad

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Abstract

Understanding patch variability is crucial in understanding the spatial population structure of wildlife species, especially for rare or threatened species. We used a well-tested maximum entropy species distribution model (Maxent) to map the Yosemite toad (Anaxyrus (= Bufo) canorus) in the Sierra Nevada mountains of California. Twenty-six environmental variables were included in the model representing climate, topography, land cover type, and disturbance factors (e.g., distances to agricultural lands, fire perimeters, and timber harvest areas) throughout the historic range of the toad. We then took a novel approach to the study of spatially structured populations by applying the species-environmental matching model separately for 49 consistently occupied sites of the Yosemite toad compared to 27 intermittently occupied sites. We found that the distribution of the entire population was highly predictable (AUC = 0.95±0.03 SD), and associated with low slopes, specific vegetation types (wet meadow, alpine-dwarf shrub, montane chaparral, red fir, and subalpine conifer), and warm temperatures. The consistently occupied sites were also associated with these same factors, and they were also highly predictable (AUC = 0.95±0.05 SD). However, the intermittently occupied sites were associated with distance to fire perimeter, a slightly different response to vegetation types, distance to timber harvests, and a much broader set of aspect classes (AUC = 0.90±0.11 SD). We conclude that many studies of species distributions may benefit by modeling spatially structured populations separately. Modeling and monitoring consistently-occupied sites may provide a realistic snapshot of current species-environment relationships, important climatic and topographic patterns associated with species persistence patterns, and an understanding of the plasticity of the species to respond to varying climate regimes across its range. Meanwhile, modeling and monitoring of widely dispersing individuals and intermittently occupied sites may uncover environmental thresholds and human-related threats to population persistence.

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References

  • Alford R A, Richards S J (1999). Global amphibian declines: a problem in applied ecology. Annu Rev Ecol Syst, 30(1): 133–165

    Article  Google Scholar 

  • Bradford D F, Neale A C, Nash M S, Sada D W, Jaeger J R (2003). Habitat patch occupancy by toads (Bufo punctatus) in a naturally fragmented desert landscape. Ecology, 84(4): 1012–1023

    Article  Google Scholar 

  • Davidson C, Shaffer H B, Jennings M R (2002). Spatial tests of the pesticide drift, habitat destruction, UV-B, and climate-change hypotheses for California amphibian declines. Conserv Biol, 16(6): 1588–1601

    Article  Google Scholar 

  • Drost C A, Fellers G M (1996). Collapse of a regional frog fauna in the Yosemite area of the California Sierra Nevada, USA. Conserv Biol, 10(2): 414–425

    Article  Google Scholar 

  • Elith J, Graham C H, Anderson R P, Dudik M, Ferrier S, Guisan A, Hijmans R J, Huettmann F, Leathwick J R, Lehmann A, Li J, Lohmann L G, Loiselle B A, Lohmann G, Manion G, Moritz C, Overton J M, Peterson A T, Phillips S J, Nakamura M, Nakazawa Y, Schapire R E, Wisz M S, Zimmermann N E (2006). Novel methods improve prediction of species’ distributions from occurrence data. Ecography, 29: 129–151

    Article  Google Scholar 

  • Evangelista P H, Kumar S, Stohlgren T J, Jarnevich C S, Crall A W, Norman J B III, Barnett D T (2008). Modelling invasion for a habitat generalist and a specialist plant species. Divers Distrib, 14(5): 808–817

    Article  Google Scholar 

  • Ficetola G F, Thuiller W, Miaud C (2007). Prediction and validation of the potential global distribution of a problematic alien invasive species—the American bullfrog. Divers Distrib, 13(4): 476–485

    Article  Google Scholar 

  • Frankham R, Ballou J D, Briscoe D A (2002). Introduction to conservation genetics. Cambridge University Press, Cambridge

    Google Scholar 

  • Fuller T, Morton D P, Sarkar S (2008). Incorporating uncertainty about species’ potential distributions under climate change into the selection of conservation areas with a case study from the Arctic Coastal Plain of Alaska. Biol Conserv, 141(6): 1547–1559

    Article  Google Scholar 

  • Funk WC, Greene A E, Corn P S, Allendorf FW (2005). High dispersal in a frog species suggests that it is vulnerable to habitat fragmentation. Biol Lett, 1(1): 13–16

    Article  Google Scholar 

  • Giovanelli J G R, Haddad C F B, Alexandrino J (2008). Predicting the potential distribution of the alien invasive American bullfrog (Lithobates catesbeianus) in Brazil. Biol Invasions, 10(5): 585–590

    Article  Google Scholar 

  • Hanski I (1999). Metapopulation Ecology. New York: Oxford University Press

    Google Scholar 

  • Harrison S, Taylor A D (1997). Empirical evidence for metapopulation dynamics. In: Hanski I, Gilpin M E, eds. Metapopulation Dynamics: Ecology, Genetics and Evolution. New York: Academic Press, 27–42

    Google Scholar 

  • Heisswolf A, Reichmann S, Poethke H J, Schrader B, Obermaier E (2009). Habitat quality matters for the distribution of an endangered leaf beetle and its egg parasitoid in a fragmented landscape. J Insect Conserv, 13(2): 165–175

    Article  Google Scholar 

  • Jarnevich C S, Stohlgren T J (2009). Near term climate projections for invasive species distributions. Biol Invasions, 11(6): 1373–1379

    Article  Google Scholar 

  • Karlstrom E L (1962). The toad genus Bufo in the Sierra Nevada of California. Univ Calif Publ Zool, 62: 1–104

    Google Scholar 

  • Kokko H, López-Sepulcre A (2006). From individual dispersal to species ranges: perspectives for a changing world. Science, 313(5788): 789–791

    Article  Google Scholar 

  • Kumar S, Spaulding S A, Stohlgren T J, Hermann K A, Schmidt T S, Bahls L L (2009). Predicting habitat distribution for freshwater diatom Didymosphenia geminata in the continental United States. Front Ecol Environ, 7: 415–420

    Article  Google Scholar 

  • Levins R A (1969). Some demographic and evolutionary consequences of environmental heterogeneity for biological control. Bull Entomol Soc Am, 15: 237–240

    Google Scholar 

  • Li M Y, Ju Y W, Kumar S, Stohlgren T J (2008). Modeling potential habitats for alien species Dreissena polymorpha (Zebra mussel) in the Continental USA. Acta Ecol Sin, 28(9): 4253–4258

    Article  Google Scholar 

  • Lloyd H (2008). Influence of within-patch habitat quality on high-Andean Polylepis bird abundance. Ibis, 150(4): 735–745

    Article  Google Scholar 

  • Marsh D M, Trenham P C (2001). Metapopulation dynamics and amphibian conservation. Conserv Biol, 15: 40–49

    Google Scholar 

  • Mortelliti A, Amori G, Boitani L (2010). The role of habitat quality in fragmented landscapes: a conceptual overview and prospectus for future research. Oecologia, 163(2): 535–547

    Article  Google Scholar 

  • Pawar S, Koo M S, Kelley C, Ahmed M F, Chaudhuri S, Sarkar S (2007). Conservation assessment and prioritization of areas in Northeast India: Priorities for amphibians and reptiles. Biol Conserv, 136(3): 346–361

    Article  Google Scholar 

  • Pearson R G, Raxworthy C J, Nakamura M, Peterson A T (2007). Predicting species distributions from small numbers of occurrence records: A test case using cryptic geckos in Madagascar. J Biogeogr, 34(1): 102–117

    Article  Google Scholar 

  • Petranka JW, Holbrook C T (2006).Wetland restoration for amphibians: should local sites be designed to support metapopulations or patchy populations? Restor Ecol, 14(3): 404–411

    Article  Google Scholar 

  • Phillips B L, Brown G P, Webb J K, Shine R (2006a). Invasion and the evolution of speed in toads. Nature, 439(7078): 803

    Article  Google Scholar 

  • Phillips S J, Dudik M, Schapire R E (2004). A maximum entropy approach to species distribution modeling. Brodley C E, ed. In: Proceedings of the 21st International Conference on Machine Learning. New York: ACM Press, 655–662

    Google Scholar 

  • Phillips S J, Anderson R P, Schapire R E (2006b). Maximum entropy modeling of species geographic distributions. Ecol Modell, 190(3–4): 231–259

    Article  Google Scholar 

  • Pilliod D S, Bury R B, Hyde E J, Pearl C A, Corn P S (2003). Fire and amphibians in North America. For Ecol Manage, 178(1–2): 163–181

    Article  Google Scholar 

  • Pulliam H R (1988). Sources, sinks, and population regulation. Am Nat, 132(5): 652–661

    Article  Google Scholar 

  • Riley S P D, Busteed G T, Kats L B, Vandergon T L, Lee L F S, Dagit R G, Kerby J L, Fisher R N, Sauvajot R M (2005). Effects of urbanization on the distribution and abundance of amphibians and invasive species in Southern California streams. Conserv Biol, 19(6): 1894–1907

    Article  Google Scholar 

  • Schooley R L, Branch L C (2009). Enhancing the area-isolation paradigm: habitat heterogeneity and metapopulation dynamics of a rare wetland mammal. Ecol Appl, 19(7): 1708–1722

    Article  Google Scholar 

  • Semlitsch R D, Todd B D, Blomquist SM, Calhoun A J K, Gibbons JW, Gibbs J P, Graeter G J, Harper E B, Hocking D J, Hunter M L Jr, Patrick D A, Rittenhouse T A G, Rothermel B B (2009). Effects of timber harvest on amphibian population: Understanding mechanisms from forest experiments. Bioscience, 59(10): 853–862

    Article  Google Scholar 

  • Sherman C K, Morton M L (1993). Population declines of Yosemite toads in the eastern Sierra Nevada of California. J Herpetol, 27(2): 186–198

    Article  Google Scholar 

  • Smith M A, Green D M (2005). Dispersal and the metapopulation paradigm in amphibian ecology and conservation: Are all amphibian populations metapopulations? Ecography, 28: 110–128

    Article  Google Scholar 

  • Svenning J C, Normand S, Kageyama M (2008). Glacial refugia of temperate trees in Europe: Insights from species distribution modelling. J Ecol, 96(6): 1117–1127

    Article  Google Scholar 

  • U.S. Fish and Wildlife Service (USFWS) (2002). 12-month finding for a petition to list the Yosemite toad. Federal Register, 67: 75834–75843

    Google Scholar 

  • Waltari E, Guralnick R P (2009). Ecological niche modelling of montane mammals in the Great Basin, North America: examining past and present connectivity of species across basins and ranges. J Biogeogr, 36(1): 148–161

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Environmental Science and Policy, University of California at Davis, Davis, CA, 95616, USA

    Christina T. Liang

  2. USDA Forest Service, Pacific Southwest Research Station, Sierra Nevada Research Center, 1731 Research Park Drive, Davis, CA, 95618, USA

    Christina T. Liang

  3. U.S. Geological Survey Science, Fort Collins Science Center, Fort Collins, CO, 80526, USA

    Thomas J. Stohlgren

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  1. Christina T. Liang
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  2. Thomas J. Stohlgren
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Correspondence to Christina T. Liang.

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Liang, C.T., Stohlgren, T.J. Habitat suitability of patch types: A case study of the Yosemite toad. Front. Earth Sci. 5, 217–228 (2011). https://doi.org/10.1007/s11707-011-0157-2

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  • DOI: https://doi.org/10.1007/s11707-011-0157-2

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