, Volume 719, Issue 1, pp 187–213 | Cite as

Biodiversity in Mediterranean-climate streams of California

  • Joan E. Ball
  • Leah A. Bêche
  • Patina K. Mendez
  • Vincent H. Resh


Although the California mediterranean climate region is widely considered a biodiversity hotspot for terrestrial plants and vertebrates, freshwater biodiversity in this region is generally not well known. Using information from museum specimen databases, published literature, biological assessment surveys, and specialist’s knowledge, we review freshwater biodiversity for several groups of stream organisms in the med-climate region of California, which includes 2,220 species in 292 families. The groups with the highest diversity of lotic species are aquatic insects and diatoms, which comprise 39 and 36 % of species in our lists, respectively. Sequential floods and drying periods limit the overall biodiversity of many stream organisms in California mediterranean rivers, and continued climate and land-use change may cause disproportionate biodiversity declines in the region. However, only 4 % of lotic species have been evaluated in the IUCN Red List of Threatened Species, and many assessments are outdated. Future development of online databases for botanical and zoological collections will significantly enhance biodiversity and distribution knowledge. This information will enable us to more accurately and efficiently assess the effects of global change on biodiversity of freshwater organisms, to evaluate conservation status of individual taxa, and to set conservation priorities for stream ecosystems.


Endemics Fauna Flora Lotic Rivers Species traits 



This material is based upon work supported by the National Science Foundation under Grant No. DBI 0956389. We also thank our colleagues who provided data and resources necessary to create species lists for this biodiversity summary: R. Baumann, B. Kondratieff, C. Rogers, K. Biggs, T. Manolis, E. DeWalt, K. Cummings, R. Moe, W. Shepard, S. Spaulding, and J. Morse.


  1. Ackerly, D. D., 2009. Evolution, origin and age of lineages in the Californian and Mediterranean floras. Journal of Biogeography 36: 1221–1233.CrossRefGoogle Scholar
  2. Allan, J. D. & A. S. Flecker, 1993. Biodiversity conservation in running waters. Bioscience 43: 32–43.CrossRefGoogle Scholar
  3. Arroyo, M. T. K., F. Ojeda, C. Cavieres, C. Marticorena & M. Muñoz-Schick, 1995. Convergence in the mediterranean floras in central Chile and California: insights from comparative biogeography. In Arroyo, M. T. K., P. H. Zedler & M. D. Fox (eds), Ecology and Biogeography of Mediterranean Ecosystems in Chile, California and Australia. Springer, Berlin: 43–88.CrossRefGoogle Scholar
  4. Aschmann, H., 1973. Distribution and peculiarity of Mediterranean ecosystems. In Di Castri, F. & H. A. Mooney (eds), Mediterranean Type Ecosystems: Origin and Structure. Springer, Berlin: 11–19.CrossRefGoogle Scholar
  5. Barbour, M. T., 2003. The status and future of biologicial assessment for California streams. http://www.waterboards.ca.gov/water_issues/programs/swamp/biocalstreams.shtml. California State Water Resources Control Board, Division of Water Quality. Sacramento.
  6. Bêche, L. A. & V. H. Resh, 2007. Short-term climatic trends affect the temporal variability of macroinvertebrates in California ‘Mediterranean’ streams. Freshwater Biology 52: 2317–2339.CrossRefGoogle Scholar
  7. Bêche, L. A. & B. Statzner, 2009. Richness gradients of stream invertebrates across the USA: taxonomy- and trait-based approaches. Biodiversity and Conservation 18: 3909–3930.CrossRefGoogle Scholar
  8. Bêche, L. A., E. P. McElravy & V. H. Resh, 2006. Long-term seasonal variation in the biological traits of benthic-macroinvertebrates in two Mediterranean-climate streams in California, USA. Freshwater Biology 51: 56–75.CrossRefGoogle Scholar
  9. Biggs, K. R., 2009. Common Dragonflies of California. Azalea Creek Publishing, Sebastopol, CA.Google Scholar
  10. Biggs, K. R., 2011. California dragonflies and damselflies. http://bigsnest.members.sonic.net/Pond/dragons/. Accessed September 20, 2011.
  11. Bonada, N. & S. Dolédec, 2011. Do mediterranean genera not included in Tachet et al. 2002 have mediterranean trait characteristics? Limnetica 30: 129–141.Google Scholar
  12. Bonada, N., M. Rieradevall, N. Prat & V. H. Resh, 2006. Benthic macroinvertebrate assemblages and macrohabitat connectivity in Mediterranean-climate streams of northern California. Journal of the North American Benthological Society 25: 32–43.CrossRefGoogle Scholar
  13. Bonada, N., S. Dolédec & B. Statzner, 2007. Taxonomic and biological trait differences of stream macroinvertebrate communities between mediterranean and temperate regions: implications for future climatic scenarios. Global Change Biology 13: 1658–1671.CrossRefGoogle Scholar
  14. California Academy of Sciences, 2011. General Collection Database. http://research.calacademy.org/redirect?url=http://researcharchive.calacademy.org/research/entomology/EntInv/index.asp. Accessed September 20 2011.
  15. Carter, J. L. & V. H. Resh, 2005. Pacific Coast Rivers of the Coterminous United States. In Benke, A. C. & C. E. Cushing (eds), Rivers of North America. Elsevier Inc., Burlington, MA: 541–589.Google Scholar
  16. Caterino, M. S., 2006. California beetle faunistics: 100 years after fall. Coleopterists Bulletin 60: 177–191.CrossRefGoogle Scholar
  17. CDFG (California Department of Fish and Game), 2011. State and Federally Listed Endangered & Threatened Animals of California. http://www.dfg.ca.gov/biogeodata/cnddb/pdfs/TEAnimals.pdf. Accessed May 15 2012.
  18. Chan, K. M. A., M. R. Shaw, D. R. Cameron, E. C. Underwood & G. C. Daily, 2006. Conservation planning for ecosystem services. Plos Biology 4: 2138–2152.Google Scholar
  19. Chevenet, F., S. Dolédec & D. Chessel, 1994. A fuzzy coding approach for the analysis of long-term ecological data. Freshwater Biology 31: 30–295.Google Scholar
  20. Cody, M. L. & H. A. Mooney, 1978. Convergence versus non-convergence in Mediterranean-climate ecosystems. Annual Review of Ecology and Systematics 9: 265–321.CrossRefGoogle Scholar
  21. Cowling, R. M., F. Ojeda, B. B. Lamont, P. W. Rundel & R. Lechmere-Oertel, 2005. Rainfall reliability, a neglected factor in explaining convergence and divergence of plant traits in fire-prone mediterranean-climate ecosystems. Global Ecology and Biogeography 14: 509–519.CrossRefGoogle Scholar
  22. Davidson, C., 2004. Declining downwind: Amphibian population declines in California and historical pesticide use. Ecological Applications 14: 1892–1902.CrossRefGoogle Scholar
  23. Day, W. C., 1956. Ephemeroptera. In Usinger, H. P. (ed.), Aquatic Insects of California: With Keys to North American Genera and California Species. University of California Press, Berkeley: 79–105.Google Scholar
  24. Denning, D. G., 1956. Trichoptera. In Usinger, H. P. (ed.), Aquatic Insects of California: With Keys to North American Genera and California Species. University of California Press, Berkeley: 237–269.Google Scholar
  25. DeWalt, R. E., C. Favret & D. W. Webb, 2005. Just how imperiled are aquatic insects? A case study of stoneflies (Plecoptera) in Illinois. Annals of the Entomological Society of America 98: 941–950.CrossRefGoogle Scholar
  26. DeWalt, R. E., Y. Cao, L. Hinz & T. Tweddale, 2009. Modelling of historical stonefly distributions using museum specimens. Aquatic Insects 31: 253–267.CrossRefGoogle Scholar
  27. DeWalt, R. E., U. Neu-Becker, G. Stueber & D. C. Eades, 2011. Plecoptera Species File Online: Version 1.1/4.0. http://plecoptera.speciesfile.org/HomePage.aspx. Accessed September 20, 2011.
  28. di Castri, F., 1981. Mediterranean-type shrublands of the world. In di Castri, F., D. W. Goodall & R. L. Specht (eds), Mediterranean-type Shrublands. Elsevier, Amsterdam: 1–52.Google Scholar
  29. di Castri, F., 1991. An ecological overview of the five regions with a mediterranean climate. In Groves, R. H. & F. di Castri (eds), Biogeography of Mediterranean Invasions. Cambridge University Press, Cambridge: 3–16.CrossRefGoogle Scholar
  30. Dray, S. & A. B. Dufour, 2007. The ade4 package: implementing the duality diagram for ecologists. Journal of Statistical Software 22: 1–20.Google Scholar
  31. ESRI, 2011. ArcGIS Desktop: Release 10. Environmental Systems Research Institute, Redlands, CA.Google Scholar
  32. Essig Museum of Entomology, University of California Berkeley, 2011. Essig Specimen Database. http://essigdb.berkeley.edu/aboutdb.html. Accessed September 20, 2011.
  33. Filipe, A. F., J. E. Lawrence & N. Bonada, 2012. Vulnerability of stream biota to climate change in mediterranean climate regions: a synthesis of ecological responses and conservation challenges. Hydrobiologia. doi: 10.1007/s10750-012-1244-4.
  34. Fisher, R. N. & H. B. Shaffer, 1996. The decline of amphibians in California’s Great Central Valley. Conservation Biology 10: 1387–1397.CrossRefGoogle Scholar
  35. Gamradt, S. C. & L. B. Kats, 1996. Effect of introduced crayfish and mosquitofish on California newts. Conservation Biology 10: 1155–1162.CrossRefGoogle Scholar
  36. Gasith, A. & V. H. Resh, 1999. Streams in Mediterranean climate regions: abiotic influences and biotic responses to predictable seasonal events. Annual Review of Ecology and Systematics 30: 51–81.CrossRefGoogle Scholar
  37. Grantham, T. E., A. M. Merenlender & V. H. Resh, 2010. Climatic influences and anthropogenic stressors: an integrated framework for streamflow management in Mediterranean-climate California, USA. Freshwater Biology 55: 188–204.CrossRefGoogle Scholar
  38. Guralnick, R. & H. Constable, 2010. VertNet: creating a data-sharing community. BioScience 60: 258–259.CrossRefGoogle Scholar
  39. Hall, R. J. & F. P. Ide, 1987. Evidence of acidification effects on stream insect communities in central Ontario between 1937 and 1985. Canadian Journal of Fisheries and Aquatic Sciences 44: 1652–1657.CrossRefGoogle Scholar
  40. Harding, J. S., E. F. Benfield, P. V. Bolstad, G. S. Helfman & E. B. D. Jones, 1998. Stream biodiversity: the ghost of land use past. Proceedings of the National Academy of Sciences of the United States of America 95: 14843–14847.PubMedCrossRefGoogle Scholar
  41. Helm, B. P., 1998. Biogeography of eight large branchiopods endemic to California. In Witham, C. W., E. T. Bauder, D. Belk, W. R. J. Ferren & R. Ornduff (eds), Ecology, Conservation, and Management of Vernal Pool Ecosystems—Proceedings from a 1996 Conference. California Native Plant Society, Sacramento, CA.Google Scholar
  42. Hill, R. E., D. C. Rogers, B. D. Quelvog & S. P. Gallegher, 1997. New records and observations on the anostracan genus Eubranchipus in California. Hydrobiologia 359: 75–81.CrossRefGoogle Scholar
  43. Hill, A., R. Guralnick, A. Smith, A. Sallans, R. Gillespie, M. Denslow, J. Gross, Z. Murrell, T. Conyers, P. Oboyski, J. Ball, A. Thomer, R. Prys-Jones, J. d la torre, P. Kociolek & L. Fortson, 2012. The notes from nature tool for unlocking biodiversity records from museum records through citizen science. ZooKeys 209: 219–233.PubMedCrossRefGoogle Scholar
  44. Hobbs, R. J. & H. A. Mooney, 1997. Broadening the extinction debate – population deletions and additions in California and Western Australia. Conservation Biology 12: 271–283.Google Scholar
  45. Holzenthal, R. W., D. R. Robertson, S. U. Pauls & P. K. Mendez, 2010. Taxonomy and systematics: contributions to benthology and J-NABS. Journal of the North American Benthological Society 29: 147–169.CrossRefGoogle Scholar
  46. Illinois Natural History Survey (INHS), Prairie Research Institute, 2011. INHS Collection Databases. http://ellipse.inhs.uiuc.edu:591/INHSCollections/. Accessed September 25, 2011.
  47. IUCN (International Union for Conservation of Nature), 2011. IUCN Red List of Threatened Species: Version 2011.1. http://www.iucnredlist.org. Accessed October 26, 2011.
  48. Jennings, M. R. & M. P. Hayes, 1994. Amphibian and Reptile Species of Special Concern in California. California Department of Fish and Game, Inland Fisheries Division, Rancho Cordova, CA.Google Scholar
  49. Jepson Herbaria, University of California Berkeley, 2009. Interchange of California Floristics. http://ucjeps.berkeley.edu/interchange.html. Accessed September 25, 2011.
  50. Jewett, S. G., 1956. Plecoptera. In Usinger, H. P. (ed.), Aquatic Insects of California: With Keys to North American Genera and California Species. University of California Press, Berkeley: 55–181.Google Scholar
  51. Keeley, J. E. & C. C. Swift, 1995. Biodiversity and ecosystem functioning in Mediterranean-climate California. Ecological Studies 109: 121–183.CrossRefGoogle Scholar
  52. Kerby, J. L., S. P. D. Riley, L. B. Kats & P. Wilson, 2005. Barriers and flow as limiting factors in the spread of an invasive crayfish (Procambarus clarkii) in southern California streams. Biological Conservation 126: 402–409.CrossRefGoogle Scholar
  53. Kondolf, M. G., 1998. Lessons learned from river restoration projects in California. Aquatic Conservation 8: 39–52.CrossRefGoogle Scholar
  54. Kondratieff, B. C., 2000. Mayflies of the United States. http://www.npwrc.usgs.gov/resource/distr/insects/mfly/index.htm. Northern Prairie Wildlife Research Center Online, Jamestown, ND. Accessed September 20, 2011.
  55. Kondratieff, B. C. & R. W. Baumann, 2000. Stoneflies of the United States. http://www.npwrc.usgs.gov/resource/distr/insects/sfly/index.htm. Northern Prairie Wildlife Research Center Online, Jamestown, ND. Accessed September 20, 2011.
  56. Leech, H. B. & H. P. Chandler, 1956. Aquatic Coleoptera. In Usinger, H. P. (ed.), Aquatic Insects of California: With Keys to North American Genera and California Species. University of California Press, Berkeley: 293–371.Google Scholar
  57. Light, T., 2003. Success and failure in a lotic crayfish invasion: the roles of hydrologic variability and habitat alteration. Freshwater Biology 48: 1886–1897.CrossRefGoogle Scholar
  58. Loarie, S. R., B. E. Carter, K. Hayhoe, S. McMahon, R. Moe, C. A. Knight & D. D. Ackerly, 2008. Climate change and the future of California’s endemic flora. PLoS ONE 3: 1–10.CrossRefGoogle Scholar
  59. Manolis, T., 2003. Dragonflies and Damselflies of California. University of California Press, Berkeley.Google Scholar
  60. Marchetti, M. P., T. Light, J. Feliciano, T. Armstrong, Z. Hogan, J. Viers & P. B. Moyle, 2001. Homogenization of California’s fish fauna through abiotic change. In Lockwood, J. & M. McKinney (eds), Biotic Homogenization. Kluwer Academic/Plenum Publishers, New York: 259–278.CrossRefGoogle Scholar
  61. Martin, J. W. & G. E. Davis, 2001. An Updated Classification of the Recent Crustacea. Natural History Museum of Los Angeles County, Los Angeles.Google Scholar
  62. Mendelson, J. R., K. R. Lips, R. W. Gagliardo, G. B. Rabb, J. P. Collins, J. E. Diffendorfer, P. Daszak, R. Ibanez, K. C. Zippel, D. P. Lawson, K. M. Wright, S. N. Stuart, C. Gascon, H. R. da Silva, P. A. Burrowes, R. L. Joglar, E. La Marca, S. Lotters, L. H. du Preez, C. Weldon, A. Hyatt, J. V. Rodriguez-Mahecha, S. Hunt, H. Robertson, B. Lock, C. J. Raxworthy, D. R. Frost, R. C. Lacy, R. A. Alford, J. A. Campbell, G. Parra-Olea, F. Bolanos, J. J. C. Domingo, T. Halliday, J. B. Murphy, M. H. Wake, L. A. Coloma, S. L. Kuzmin, M. S. Price, K. M. Howell, M. Lau, R. Pethiyagoda, M. Boone, M. J. Lannoo, A. R. Blaustein, A. Dobson, R. A. Griffiths, M. L. Crump, D. B. Wake & E. D. Brodie, 2006. Biodiversity – confronting amphibian declines and extinctions. Science 313: 48.PubMedCrossRefGoogle Scholar
  63. Mendez, P. K., 2007. Life history and benthic macroinvertebrates: studies and applications to benthic ecology and systematics. Ph. D. Dissertation. University of California, Berkeley.Google Scholar
  64. Menke, A. S., 1979. The Semi-aquatic and Aquatic Hemiptera of California. Bulletin of the California Insect Survey 21: 1–166.Google Scholar
  65. Merritt, R. W., K. W. Cummins & M. B. Berg (eds), 2008. An Introduction to the Aquatic Insects of North America. Kendall/Hunt Publishing Co., Dubuque, IA.Google Scholar
  66. Meyer, M. D. & W. P. McCafferty, 2008. Mayflies (Ephemeroptera) of the Far Western United States. Part 3: California. Transactions of the American Entomological Society 134: 337–430.CrossRefGoogle Scholar
  67. Minckley, W. L., D. A. Hendrickson & C. E. Bond, 1986. Geography of western North American fishes: description and relationships to intracontinental tectonism. In Hocutt, C. H. & E. O. Wiley III (eds), The Zoogeography of North American Freshwater Fishes. John Wiley & Sons, New York: 519–613.Google Scholar
  68. Mooney, H. A., M. T. K. Arroyo, W. J. Bond, J. Canadell, R. J. Hobbs, S. Lavorel & R. P. Meilson, 2001. Mediterranean-climate ecosystems. In Chapin, F. S. (ed.), Global Biodiversity in a Changing Environment. Springer, New York: 157–199.CrossRefGoogle Scholar
  69. Morse, J. C., 2011. Trichoptera World Checklist. http://entweb.clemson.edu/database/trichopt/ Accessed September 25, 2011.
  70. Mount, J. F., 1995. California Rivers and Streams: The Conflict between Fluvial Process and Land Use. University of California Press, Berkeley.Google Scholar
  71. Moyle, P. B., 1995. Conservation of native freshwater fishes in the mediterranean-type climate of California, USA – a review. Biological Conservation 72: 271–279.CrossRefGoogle Scholar
  72. Moyle, P. B., 2002. Inland Fishes of California: Revised and Expanded. University of California Press, Berkeley.Google Scholar
  73. Moyle, P. B. & J. E. Williams, 1990. Biodiversity loss in the temperate zone – decline of the native fish fauna of California. Conservation Biology 4: 275–284.CrossRefGoogle Scholar
  74. Moyle, P. B., J. V. E. Katz & R. M. Quiñones, 2011. Rapid decline of California’s native inland fishes: a status assessment. Biological Conservation 144: 2414–2423.CrossRefGoogle Scholar
  75. Myers, N., R. A. Mittermeier, C. G. Mittermeier, G. A. B. da Fonseca & J. Kent, 2000. Biodiversity hotspots for conservation priorities. Nature 403: 853–858.PubMedCrossRefGoogle Scholar
  76. Nafis, G., 2011. California Herps. http://www.californiaherps.com/. Accessed September 25, 2011.
  77. Oksanen, J., F. G. Blanchet, R. Kindt, P. Legendre, P. R. Minchin, R. B. O’Hara, G. L. Simpson, P. Solymos, M. Henry, H. Stevens & H. Wagner, 2011. Vegan: Community Ecology Package. R Package Version 2.0-1. http://CRAN.R-project.org/package=vegan.
  78. Olden, J. D., 2006. Biotic homogenization: a new research agenda for conservation biogeography. Journal of Biogeography 33: 2027–2038.CrossRefGoogle Scholar
  79. Olson, D. M., E. Dinerstein, E. D. Wikramanayake, N. D. Burgess, G. V. N. Powell, E. C. Underwood, J. A. D’Amico, I. Itoua, H. E. Strand, J. C. Morrison, C. J. Loucks, T. F. Allnutt, T. H. Ricketts, Y. Kura, J. F. Lamoreux, W. W. Wettengel, P. Hedao & K. R. Kassem, 2001. Terrestrial ecoregions of the worlds: a new map of life on Earth. Bioscience 51: 933–938.CrossRefGoogle Scholar
  80. Pan, Y. D., B. H. Hill, P. H. Husby, R. K. Hall & P. R. Kaufmann, 2006. Relationships between environmental variables and benthic diatom assemblages in California Central Valley streams (USA). Hydrobiologia 561: 119–130.CrossRefGoogle Scholar
  81. Porter, S. D., T. F. Cuffney, M. E. Gurtz & M. R. Meador. 1993. Methods for characterizing algal samples as part of the National Water-Quality Assessment Program. United States Geological Survey. Open-File Report 93-409. Raleigh, NC.Google Scholar
  82. Pounds, J. A., M. P. L. Fogden & J. H. Campbell, 1999. Biological response to climate change on a tropical mountain. Nature 398: 611–615.CrossRefGoogle Scholar
  83. Power, M. E., 1990. Effects of fish in river foodwebs. Science 250: 811–814.PubMedCrossRefGoogle Scholar
  84. Pyke, G. H. & P. R. Ehrlich, 2010. Biological collections and ecological/environmental research: a review, some observations and a look to the future. Biological Reviews 85: 247–266.PubMedCrossRefGoogle Scholar
  85. R Development Core Team, 2010. R: A language and environment for statistical computing. http://www.R-project.org/. R Foundation for Statistical Computing, Vienna, Austria.
  86. Rahel, F. J., 2002. Homogenization of freshwater faunas. Annual Review of Ecology and Systematics 33: 291–315.CrossRefGoogle Scholar
  87. Resh, V. H., 2008. Which group is best? Attributes of different biological assemblages used in freshwater biomonitoring programs. Environmental Monitoring and Assessment 138: 131–138.PubMedCrossRefGoogle Scholar
  88. Resh, V. H., 2011. Aquatic Insects of California (1956): a landmark event and unique collaboration in benthic biology. Journal of the North American Benthological Society 30: 1–10.CrossRefGoogle Scholar
  89. Resh, V. H. & M. A. Barnby, 1987. Distribution of the Wilbur Springs Shore Bug (Hemiptera, Saldidae) – a product of abiotic tolerances and biotic constraints. Environmental Entomology 16: 1087–1091.Google Scholar
  90. Resh, V. H. & D. M. Rosenberg, 2010. Recent trends in life history research on benthic macroinvertebrates. Journal of the North American Benthological Society 29: 27–219.CrossRefGoogle Scholar
  91. Resh, V. H. & K. L. Sorg, 1983. Distribution of the Wilbur Springs Shore Bug (Hemiptera Saldidae): predicting occurrence using water chemistry parameters. Environmental Entomology 12: 1628–1635.Google Scholar
  92. Resh, V. H. & J. D. Unzicker, 1975. Water-quality monitoring and aquatic organisms – importance of species identification. Journal Water Pollution Control Federation 47: 9–19.PubMedGoogle Scholar
  93. Resh, V. H., L. A. Bêche, J. E. Lawrence, R. Mazor, E. P. McElravy, A. P. O’Dowd & S. Carlson, 2012. Long-term population and community patterns of benthic macroinvertebrates and fishes in northern California mediterranean-climate streams. Hydrobiologia. doi: 10.1007/s10750-012-1373-9.
  94. Ricciardi, A. & J. B. Rasmussen, 1999. Extinction rates of North American freshwater fauna. Conservation Biology 13: 1220–1222.CrossRefGoogle Scholar
  95. Richards, A. B. & D. C. Rogers, 2011. List of freshwater macroinvertebrate taxa from California and adjacent states including standard taxonomic effort levels. http://www.safit.org/Docs/STE_1_March_2011_7MB.pdf. Southwest Association of Freshwater Invertebrate Taxonomists. March 1.
  96. Rogers, D. C., 2005. Identification manual to the freshwater Crustacea of the western United States and adjacent areas encountered during bioassessment. EcoAnalysts, Inc. Technical Publications, Moscow, ID.Google Scholar
  97. Rosenberg, D. M. & V. H. Resh, 1993. Introduction to freshwater biomonitoring and benthic macroinvertebrates. In Rosenberg, D. M. & V. H. Resh (eds), Freshwater Biomonitoring and Benthic Macroinvertebrates. Chapman & Hall, New York: 1–9.Google Scholar
  98. Santa Barbara Museum of Natural History, 2011. California Beetle Project. http://www.sbnature.org/collections/invert/entom/cbphomepage.php. Accessed September 20, 2011.
  99. Schuh, R. T., S. Hewson-Smith & J. S. Ascher, 2010. Specimen databases: a case study in Entomology using web-based Software. American Entomologist 56: 206–216.Google Scholar
  100. Schwartz, M. W., J. H. Thorne & J. H. Viers, 2006. Biotic homogenization of the California flora in urban and urbanizing regions. Biological Conservation 127: 282–291.CrossRefGoogle Scholar
  101. Shaffer, H. B., R. N. Fisher & C. Davidson, 1998. The role of natural history collections in documenting species declines. Trends in Ecology & Evolution 13: 27–30.CrossRefGoogle Scholar
  102. Shmida, A., 1981. Mediterranean vegetation of California and Israel – similarities and differences. Israel Journal of Botany 30: 105–123.Google Scholar
  103. Skelly, D. K., K. L. Yurewicz, E. E. Werner & R. A. Relyea, 2003. Estimating decline and distributional change in amphibians. Conservation Biology 17: 744–751.CrossRefGoogle Scholar
  104. Smithsonian Institution, National Museum of Natural History, 2011. Department of Entomology Collections. http://collections.nmnh.si.edu/search/ento/. Accessed September 20, 2011.
  105. Sparling, D. W., G. M. Fellers & L. L. McConnell, 2001. Pesticides and amphibian population declines in California, USA. Environmental Toxicology and Chemistry 20: 1591–1595.PubMedCrossRefGoogle Scholar
  106. Statzner, B., N. Bonada & S. Dolédec, 2007. Conservation of taxonomic and biological trait diversity of European stream macroinvertebrate communities: a case for a collective public database. Biodiversity and Conservation 16: 3609–3632.CrossRefGoogle Scholar
  107. Stebbins, R. C., 2003. A Field Guide to Western Reptiles and Amphibians, 3rd ed. Houghton Mifflin Company, New York.Google Scholar
  108. Stoddard, J. L., D. V. Peck, A. R. Olsen, D. P. Larsen, J. Van Sickle, C. P. Hawkins, R. M. Hughes, T. R. Whittier, G. A. Lomnicky, A. T. Herlihy, P. R. Kaufman, S. A. Peterson, P. L. Ringold, S. G. Paulsen & R. Blair, 2005a. Environmental Monitoring and Assessment Program (EMAP) western streams and rivers statistical summary. U.S. Environmental Protection Agency Report 620/R-05/006. U.S. Environmental Protection Agency, Washington, D.C.Google Scholar
  109. Stoddard, J. L., D. V. Peck, S. G. Paulsen, J. Van Sickle, C. P. Hawkins, A. T. Herlihy, R. M. Hughes, P. R. Kaufman, D. P. Larsen, G. A. Lomnicky, A. R. Olsen, S. A. Peterson, P. L. Ringold, & T. R. Whittier, 2005b. An ecological assessment of western streams and rivers. U.S. Environmental Protection Agency Report 620/R-05/005. U.S. Environmental Protection Agency, Washington, D.C.Google Scholar
  110. Strong, E. E., O. Gargominy, W. F. Ponder & P. Bouchet, 2008. Global diversity of gastropods (Gastropoda; Mollusca) in freshwater. Hydrobiologia 595: 149–166.CrossRefGoogle Scholar
  111. Taylor, D. W., 1981. Freshwater molluscs of California – a distributional checklist. California Fish and Game 67: 140–163.Google Scholar
  112. Taylor, C. A., M. L. Warren, J. F. Fitzpatrick, H. H. Hobbs, R. F. Jezerinac, W. L. Pflieger & H. W. Robinson, 1996. Conservation status of crayfishes of the United States and Canada. Fisheries 21: 25–38.CrossRefGoogle Scholar
  113. Thorp, R. W., 2012. Biodiversity of native bees and crop pollination with emphasis on California. In Gepts, P., T. R. Famula, R. L. Bettinger, S. B. Brush, A. B. Damania, P. E. McGuire & C. O. Qualset (eds), Biodiversity in Agriculture: Domestication, Evolution, and Sustainability. Cambridge University Press, Cambridge: 526–537.CrossRefGoogle Scholar
  114. UC Berkeley (University of California Berkeley), 2011. AmphibiaWeb: Information on amphibian biology and conservation. http://amphibiaweb.org/about/index.html. Accessed September 20, 2011.
  115. UC Davis (University of California Davis), 2011. California Fish Website. http://calfish.ucdavis.edu/. Accessed September 20, 2011.
  116. USEPA (U.S. Environmental Protection Agency). 2011. Environmental Monitoring and Assessment Program. http://www.epa.gov/emap/index.html. Accessed September 25, 2011.
  117. USGS (U.S. Geological Survey). 2011. BioData – Aquatic Bioassessment Data for the Nation. http://aquatic.biodata.usgs.gov/clearCriteria.action. Accessed September 25, 2011.
  118. Usinger, R. L. (ed.), 1956. Aquatic Insects of California: With Keys to North American Genera and California Species. University of California Press, Berkeley.Google Scholar
  119. Vanormelingen, P., E. Verleyen & W. Vyverman, 2008. The diversity and distribution of diatoms: from cosmopolitanism to narrow endemism. Biodiversity and Conservation 17: 393–405.CrossRefGoogle Scholar
  120. Vaughn, C. C., 2010. Biodiversity losses and ecosystem function in freshwaters: emerging conclusions and research directions. Bioscience 60: 25–35.CrossRefGoogle Scholar
  121. Wake, D. B. & V. T. Vredenburg, 2008. Are we in the midst of the sixth mass extinction? A view from the world of amphibians. Proceedings of the National Academy of Sciences of the United States of America 105: 11466–11473.PubMedCrossRefGoogle Scholar
  122. Ward, J. V., 1998. Riverine landscapes: biodiversity patterns, disturbance regimes, and aquatic conservation. Biological Conservation 83: 269–278.CrossRefGoogle Scholar
  123. Welsh, H. H., G. R. Hodgson & N. E. Karraker, 2005. Influences of the vegetation mosaic on riparian and stream environments in a mixed forest-grassland landscape in “Mediterranean” northwestern California. Ecography 28: 537–551.CrossRefGoogle Scholar
  124. Williams, J. D., M. L. Warren, K. S. Cummings, J. L. Harris & R. J. Neves, 1993. Conservation status of freshwater mussles of the United States and Canada. Fisheries 18: 6–22.CrossRefGoogle Scholar
  125. Witt, J. D. S., D. L. Threloff & P. D. N. Hebert, 2006. DNA barcoding reveals extraordinary cryptic diversity in an amphipod genus: implications for desert spring conservation. Molecular Ecology 15: 3073–3082.PubMedCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • Joan E. Ball
    • 1
  • Leah A. Bêche
    • 1
  • Patina K. Mendez
    • 1
  • Vincent H. Resh
    • 1
  1. 1.Department of Environmental Science, Policy and ManagementUniversity of CaliforniaCAUSA

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