Selected Publications
A selection of papers, research reports, and websites authored or co-authored by Phytosphere Research principals Elizabeth Bernhardt and/or Tedmund J. Swiecki. See also Online Resources for links to our most recent publications and reports, sorted by topic area.
|
Report / paper title |
Available from: |
| Swiecki, T. J.; Bernhardt, E. A. 2003-date. California Oak Disease and Arthropod (CODA) database. Online database. http://phytosphere.com/coda/ | online |
Swiecki, T. J.; Bernhardt, E.. 2008. Increasing distance from California bay reduces the risk and severity of Phytophthora ramorum canker in coast live oak. Pages 181-194 in: Frankel, S. J.; Kliejunas, J. T.; Palmieri, K. M., tech. coords. Proceedings of the sudden oak death third science symposium. Gen. Tech. Rep. PSW-GTR-214. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 491 p. http://www.fs.fed.us/psw/publications/documents/psw_gtr214/psw_gtr214_181-194_swiecki.pdf |
online proceedings |
| Swiecki, T. J.; Bernhardt, E., in press. Impacts of Phytophthora ramorum canker and other agents in Sonoma County forests. in: Proceedings of the sixth symposium on oak woodlands: today’s challenges, tomorrow’s opportunities, October 9-12, 2006, Rohnert Park, CA; Monterey, CA. | |
| Swiecki, T. J.; Bernhardt, E., in press. Regeneration of oaks and tanoak in Phytophthora ramorum-affected forests. in: Proceedings of the sixth symposium on oak woodlands: today’s challenges, tomorrow’s opportunities, October 9-12, 2006, Rohnert Park, CA; Monterey, CA. | |
| Swiecki, T. J.; Bernhardt, E. A. 2008. Effects of grazing on upland vegetation at Jepson Prairie Preserve, Solano County, CA. Third year (2007) results and final report. Prepared for Solano Land Trust, Fairfield, CA. 76 p. | online |
| Swiecki, T. J.; Bernhardt, E. A. 2008. Phytophthora ramorum canker (sudden oak death) in coast live oak and tanoak, 2000-2006: factors affecting disease risk, disease progression, and failure potential. 2006-2007 Contract Year Annual Report. Prepared for Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture, Berkeley, CA. 38 p. | online |
| Meyers, K. J.; Swiecki, T. J.; Mitchell, A. E. 2007. An exploratory study of the nutritional composition of tanoak (Lithocarpus densiflorus) acorns after potassium phosphonate treatment. J. Agric. Food Chem. 55: 6186-6190. | Abstract online |
| Swiecki, T. J.; Bernhardt, E. A. 2007. Influence of local California bay distribution on the risk of Phytophthora ramorum canker (sudden oak death) in coast live oak. Final Report. Prepared for Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture Berkeley, CA. 30 p. | online |
| Swiecki, T. J.; Bernhardt, E. A. 2007. Effects of grazing on upland vegetation at Jepson Prairie Preserve, Solano County, CA. Progress report 2: second year (2006) results. Prepared for Solano Land Trust, Fairfield, CA. 50 p. | online |
| Swiecki, T. J.; Bernhardt, E. A. 2006. A field guide to insects and diseases of California oaks. Gen. Tech. Rep. PSW-GTR-197. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. 151 p. | USDA Forest Service - hardcopy and online |
| Meyers, K. J.; Swiecki, T. J.; Mitchell, A. E. 2006. Understanding the Native Californian Diet. Identification of condensed and hydrolyzable tannins in tanoak acorns (Lithocarpus densiflorus). Journal of Agricultural and Food Chemistry 54(20); 7686-7691 | Abstract online |
| Swiecki, T. J.; Bernhardt, E. A. 2006. Planning for the Future of Rocklin's Urban Forest. Prepared for Community Development Department City of Rocklin, CA. 232 p. | online |
| Swiecki, T. J.; Bernhardt, E. A. 2006. Phytophthora ramorum canker (sudden oak death) in coast live oak and tanoak, 2000-2005: factors affecting disease risk, disease progression, and failure potential. 2005-2006 Contract Year Annual Report. Prepared for Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture, Berkeley, CA. 39 p. | online |
| Swiecki, T. J.; Bernhardt, E. ; Drake, C. Costello, L.R. 2006. Relationships between Phytophthora ramorum canker (sudden oak death) and failure potential in coast live oak. pp. 427-453 in: Proceedings of the sudden oak death second symposium: the state of our knowledge. 2005 January 18-21; Monterey, CA. Gen. Tech. Rep. PSW-GTR-196. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 571. http://www.fs.fed.us/psw/publications/documents/psw_gtr196/psw_gtr196_007_064Swiecki.pdf | online proceedings |
| Swiecki, T. J.; Bernhardt, E. 2006. Disease risk factors and disease progress in coast live oak and tanoak affected by Phytophthora ramorum canker (sudden oak death). pp. 383-411 in: Proceedings of the sudden oak death second symposium: the state of our knowledge. 2005 January 18-21; Monterey, CA. Gen. Tech. Rep. PSW-GTR-196. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 571. http://www.fs.fed.us/psw/publications/documents/psw_gtr196/psw_gtr196_006_077Swiecki.pdf | online proceedings |
| Swiecki, T. J.; Bernhardt, E. A. 2006. Effects of grazing on upland vegetation at Jepson Prairie Preserve, Solano County, CA. Progress report 1: first year (2004-2005) results. Prepared for Solano Land Trust, Fairfield, CA. 44 p. | online |
Swiecki, T. J.; Bernhardt, E. A. 2005. Phytophthora ramorum canker (sudden oak death) in coast live oak and tanoak, 2000-2004: factors affecting disease risk, disease progression, and failure potential. 2004-2005 Contract Year Annual Report. Prepared for Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture, Berkeley, CA. 41 p. |
online |
| Swiecki, T. J.; Bernhardt, E. A. 2005. 2004 Resurvey of permanent plots for monitoring Phytophthora ramorum canker (sudden oak death) in Sonoma County. Prepared for Department of Plant Pathology, UC Davis. 40 p. | online |
| Swiecki, T. J.; Bernhardt, E. A.; Garbelotto, M. 2005. Distribution of Phytophthora cinnamomi within the range of Ione manzanita (Arctostaphylos myrtifolia). Prepared for California Department of Fish and Game. Vacaville CA: Phytosphere Research and University of California, Berkeley. | online |
| Swiecki, T. J.; McCreary, D. D. 2005. Oak and oak woodland ordinances. Chapter 8, pages 88-97 in: Guisti, G.A., McCreary, D.D.;, Standiford, R.B. (editors). A Planners Guide for Oak Woodlands. Second Edition. ANR Publication 3491. Oakland: Agriculture and Natural Resources, Univeristy of California. | UC ANR Publications |
| Swiecki, T. J.; Bernhardt, E. 2004. Phytophthora ramorum canker (sudden oak death) in coast live oak and tanoak: factors affecting disease risk, disease progression, and failure potential. 2003-2004 contract year annual report.. Prepared for USDA Forest Service Pacific Southwest Research Station, Berkeley, CA. 35 pp. | online |
| Swiecki, T. J.; Bernhardt, E. 2003. Phytophthora ramorum canker: Factors affecting disease progression and failure potential. 2002-2003 Contract Year Annual Report. Prepared for USDA Forest Service Pacific Southwest Research Station, Berkeley, CA. 38 pp. | online |
| Swiecki, T. J.; Bernhardt, E. 2003. Relationships between Phytophthora ramorum canker (sudden oak death) and failure potential in coast live oak. Prepared for USDA Forest Service Pacific Southwest Research Station, Berkeley, CA. 57 pp. | online |
| Swiecki, T. J.; Bernhardt, E. A.; Garbelotto,.M. 2003. First report of root and crown rot caused by Phytophthora cinnamomi affecting native stands of Arctostaphylos myrtifolia and A. viscida in California. Plant Disease 87 (11): 1395. | Journal article |
| Swiecki, T. J.; Bernhardt, E. A. 2003. Effects of stand thinning on water relations, growth, and condition of three tree species in a riparian restoration planting. Pages 280-289 in: California Riparian Systems: Processes and Floodplain Management, Ecology, and Restoration. 2001 Riparian Habitat and Floodplains Conference Proceedings. Sacramento, CA: Riparian Habitat Joint Venture. | online proceedings |
| Swiecki, T. J.; Bernhardt, E. A. 2003. Diseases threaten the survival of Ione manzanita (Arctostaphylos myrtifolia). Prepared for San Francisco State University / California Department of Fish and Game. 49 pp. | online |
| Swiecki, T. J.; Bernhardt, E. A. 2002. Factors related to Phytophthora canker (sudden oak death) disease risk and disease progress in coast live oak and tanoak. Prepared for USDA Forest Service Pacific Southwest Research Station, Berkeley, CA. 36 pp. | online |
| Swiecki, T. J.; Bernhardt, E. A. 2002. Effects of fire on naturally occurring blue oak (Quercus douglasii) saplings. Pages 251-259 in: Proceedings of the fifth symposium on oak woodlands: oaks in California’s changing landscape. Gen. Tech. Rep. PSW-GTR-184. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. http://danr.ucop.edu/ihrmp/proceed/swiecki01.pdf | online proceedings |
| Swiecki, T. J.; Bernhardt, E. A. 2002. Evaluation of Stem Water Potential and Other Tree and Stand Variables as Risk Factors for Phytophthora ramorum Canker Development in Coast Live Oak. Pages 787-798 in: Proceedings of the fifth symposium on oak woodlands: oaks in California’s changing landscape. Gen. Tech. Rep. PSW-GTR-184. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. http://danr.ucop.edu/ihrmp/proceed/swiecki02.pdf | online proceedings |
|
Swiecki, T. J.; Bernhardt, E. A. 2002. (paper abstract). Factors Related to Phytophthora ramorum Canker (Sudden Oak Death) Disease Risk in Coast Live Oak and Tanoak. Sudden Oak Death Science Symposium, December 15-18, 2002, Monterey, California. http://danr.ucop.edu/ihrmp/sodsymp/paper/paper32.html |
online proceedings |
| Swiecki, T. J.; Bernhardt, E. A. 2002. (poster abstract) Disease progress and changes in stem water potentials of coast live oak and tanoak affected by Phytophthora ramorum canker (sudden oak death). Sudden Oak Death Science Symposium, December 15-18, 2002, Monterey, California. http://danr.ucop.edu/ihrmp/sodsymp/poster/poster51.html | online proceedings |
| Swiecki, T. J.; Bernhardt, E. A. 2002. A delicate balance: Impacts of diseases and insects on the health of California oaks. Western Arborist 29(1): 24-29. | online |
| Swiecki, T.; Bernhardt, E. 2002. Exotic and native plant monitoring at Jepson Prairie Preserve, 2002. Prepared for Solano Land Trust, Fairfield, CA. 51 pages. | online |
| Swiecki, T. J.; Bernhardt, E. A. 2001. Guidelines for Developing and Evaluating Tree Ordinances. Website. http://www.isa-arbor.com/publications/ordinance.aspx | online |
| Little, R.; Swiecki, T. J.; Tietje, W. 2001. Oak woodland invertebrates: the little things count. Publication 21598. Oakland, CA: Univ. of California, Agriculture and Natural Resources, Communication Services. 14 pp. | UC ANR Publications |
| Swiecki, T. J.; Bernhardt, E. A. 2001. Evaluating and monitoring effects of Phytophthora ramorum canker (sudden oak death) in Sonoma County woodlands and forests. Phytosphere Research, Vacaville, CA. Prepared for: Sonoma County Fish and Wildlife Advisory Board, Santa Rosa, CA. 32 pp. | online |
| Swiecki, T. J.; Bernhardt, E. A. 2001. Evaluation of stem water potential and other tree and stand variables as risk factors for Phytophthora canker development in coast live oak and tanoak. Phytosphere Research, Vacaville, CA. Prepared for State and Private Forestry, USDA - Forest Service, Vallejo, CA. 31 pp. | online |
| Swiecki, T.; Bernhardt, E. 2001. Exotic and native plant monitoring at Jepson Prairie Preserve, 2001. Prepared for Solano Land Trust, Fairfield, CA. 46 pages. | online |
| Swiecki, T. J.; Bernhardt, E. 2000. Effects of Stand Thinning on Water Relations, Growth, and Condition of Three Tree Species in the Downtown Guadalupe River Contract 1A Riparian Planting. Prepared for Santa Clara Valley Water District, San Jose, CA. 42pp. | |
| Swiecki, T. J.; Bernhardt, E. A. 1999. PG&E line clearance efficiency study: effects of pruning method on pruning efficiency, pruning cycle length, and long-term line clearance costs. Final project report. Prepared for Technical and Ecological Services, Pacific Gas and Electric Company, San Ramon, CA. 78 pp. | |
| Swiecki, T. J; Bernhardt, E. A. 1998. Understanding blue oak regeneration. Fremontia 26:19-26. | Journal article, online |
| Swiecki, T. J; Bernhardt, E. A. 1998. The Role of Local Ordinances in Protecting Oaks and Oak Woodlands. | online |
| Bernhardt, E. A.; Swiecki, T. J. 1997. Effects of cultural inputs on survival and growth of direct seeded and naturally occurring valley oak seedlings on hardwood rangeland. Pages 301-311 in: Proceedings of the Symposium on Oak Woodlands: Ecology, Management, and Urban Interface Issues. Gen. Tech. Rep. PSW-160. Albany, CA: USDA Forest Service Pacific Southwest Forest and Range Exp. Stn. | Pacific SW Experiment Station |
| Swiecki, T. J.; Bernhardt, E. A.; Drake, C. 1997. Stand-level status of blue oak sapling recruitment and regeneration. Pages 147-156 in: Proceedings of the Symposium on Oak Woodlands: Ecology, Management, and Urban Interface Issues. Gen. Tech. Rep. PSW-160. Albany, CA: USDA Forest Service Pacific Southwest Forest and Range Exp. Stn. | Pacific SW Experiment Station |
| Swiecki, T. J.; Bernhardt, E. A.; Drake, C. 1997. Factors affecting blue oak sapling recruitment. Pages 157-167 in: Proceedings of the Symposium on Oak Woodlands: Ecology, Management, and Urban Interface Issues. Gen. Tech. Rep. PSW-160. Albany, CA: USDA Forest Service Pacific Southwest Forest and Range Exp. Stn. | Pacific SW Experiment Station |
| Swiecki, T. J.; Bernhardt, E. A.; Arnold, R. A. 1997. The California oak disease and arthropod (CODA) database. Pages 543-552 in: Proceedings of the Symposium on Oak Woodlands: Ecology, Management, and Urban Interface Issues. Gen. Tech. Rep. PSW-160. Albany, CA: USDA Forest Service Pacific Southwest Forest and Range Exp. Stn. | Pacific SW Experiment Station, online |
| Bernhardt, E.; Swiecki, T. J. 1993. The State of Urban Forestry in California - 1992. Prepared for CDF Urban Forestry Program, Riverside, CA. 61pp. | CDF-UCFP |
| Swiecki, T. J.; Bernhardt, E.; Drake, C. 1993. Factors Affecting Blue Oak Sapling Recruitment and Regeneration. Prepared for CDF Strategic Planning Program, Sacramento, CA. 131pp. | online |
| Gubler, W. D.; Bernhardt, E. A. 1992. Cavity rot of winter melon caused by Verticillium dahliae. Plant Disease 76:416-417. | Journal article |
| Cucuzza, J. D.; Watterson, J. C.; Bernhardt, E. A. 1992. Foot rot of tomato caused by Fusarium solani in California. Plant Disease 76:101. | Journal article |
| Bernhardt, E. A.; Swiecki, T. J. 1991. Guidelines for Developing and Evaluating Tree Ordinances. Prepared for: CDF Urban Forestry Program, Sacramento, CA. 76pp. | CDF-UCFP |
| Swiecki, T. J. 1991. Fungi among the oaks. Pages 70-71 in: Pavlik, B.; Muick, P; Johnson, S.; Popper, M. Oaks of California. Los Olivos, CA. Cachuma Press. | Book section |
| Bernhardt, E. A.; Swiecki, T. J. 1991. Minimum input techniques for restocking valley oaks. Pages 1-8 in: Proceedings of the Symposium for Oak Woodlands and Hardwood Rangeland Management. Gen. Tech. Rep. PSW-126. Berkeley, CA: USDA Forest Service Pacific Southwest Forest and Range Exp. Stn. | Pacific SW Experiment Station |
| Swiecki, T. J.; Bernhardt, E. 1991. Minimum Input Techniques for Restoring Valley Oaks on Hardwood Rangeland. Prepared for CDF Forest and Rangeland Resource Assessment Program, Sacramento, CA. 71pp. | CDF-FRAP |
| Swiecki, T. J.; Bernhardt, E. A.; Arnold, R. A. 1991. Insect and disease impacts on blue oak acorns and seedlings. Pages 149-155 in: Proceedings of the Symposium for Oak Woodlands and Hardwood Rangeland Management. Gen. Tech. Rep. PSW-126. Berkeley, CA: USDA Forest Service Pacific Southwest Forest and Range Exp. Stn. | Pacific SW Experiment Station |
| Swiecki, T. J.; Bernhardt, E. A.; Arnold, R. A. 1991. Monitoring
insect and disease impacts on rangeland oaks in California. Pages 208-213
in: Proceedings of the Symposium for Oak Woodlands
and Hardwood Rangeland Management. Gen. Tech. Rep. PSW-126.
Berkeley, CA: USDA Forest Service Pacific Southwest Forest and Range Exp.
Stn. |
Pacific SW Experiment Station |
| Swiecki, T. J.; MacDonald, J. D. 1991. Soil salinity enhances Phytophthora root rot of tomato but hinders asexual reproduction by Phytophthora parasitica. J. Amer. Soc. Hort. Sci. 116:471-477. | Journal article |
| Swiecki, T. J. 1990. Oak diseases and insects: a delicate balance. Fremontia 18:58-63. | Journal article, online (updated version) |
| Swiecki, T. J.; Bernhardt, E. A.; Arnold, R. A. 1990. Impacts
of diseases and arthropods on California's rangeland oaks. Prepared for
CDF Forest and Rangeland Resource Assessment Program, Sacramento, CA. 94pp.
|
CDF-FRAP |
| Bernhardt, E.; Swiecki, T. J. 1989. The State of Urban Forestry
in California. Prepared for CDF Urban Forestry Program, Sacramento, CA.
68pp. |
CDF-UCFP |
| Bernhardt, E.; Dodson, J.; Watterson, J. 1988. Cucurbit Diseases: A Practical Guide for Seedsmen, Growers and Agricultural Advisors. Petoseed Co., Inc., Saticoy, CA. 48pp. | |
| Swiecki, T. J.; MacDonald, J. D. 1988. Histology of chrysanthemum roots exposed to salinity stress and Phytophthora cryptogea. Can. J. Bot. 66:280-288. | Journal article |
| Bernhardt, E. A.; Duniway, J. M. 1986. Decay of pondweed and hydrilla hibernacula by fungi. J. Aquat. Plant Manage. 24:20-24. | Journal article |
| Bernhardt, E. A.; Duniway, J. M. 1984. A new Papulaspora species from the pondweeds Potamogeton nodosus and P. crispus in California. Can J. Bot. 63:429-431. | Journal article |
| Bernhardt, E. A.; Duniway, J. M. 1984. Root and stem rot of parrotfeather (Myriophyllum brasiliense) caused by Pythium carolinianum. Plant Disease 168:999-1003. | Journal article |
| Bernhardt, E.A.; Grogan, R.G. 1982. Effect of water potential on the formation and indirect germination of sporangia of Phytophthora parasitica, P. capsici and P. cryptogea. Phytopathology 72:507-511. | Journal article |
| MacDonald, J. D.; Swiecki, T. J.; Blaker, N. S.; Shapiro, J. D. 1984. Effects of salinity stress on the development of Phytophthora root rots. Calif. Agr. 38:23-24. | Journal article |
| Swiecki, T. J.; Endress, A. G.; Taylor, O. C. 1982. Histological effects of aqueous acids and gaseous hydrogen chloride on bean leaves. Amer. J. Bot. 69:141-149. | Journal article |
| Swiecki, T. J.; Endress, A. G.; Taylor, O. C. 1982. The role of surface wax in the susceptibility of plants to air pollution injury. Can. J. Bot. 60:316-319. | Journal article |
| Swiecki, T. J.; Endress, A. G.; Taylor, O. C. 1978. Foliar and microscopic observations of bean leaves exposed to hydrogen chloride gas. Environ. Exper. Bot. 18:139-149. | Journal article |
|
Reports available from:
CDF-FRAP: California Dept. of Forestry & Fire Protection, Forest Resource Assessment Program, Sacramento CDF-UCFP: California Dept. of Forestry & Fire Protection, Urban & Community Forestry Program, Riverside |
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