Resume

Efren Cazares, Ph.D.

Education

  • Ph. D. 1988-1992. Dept. of Botany and Plant Pathology, Oregon State University, Corvallis, OR. Dissertation Title: Mycorrhizal fungi and their relationship to plant succession in subalpine habitats.
  • B.S. Biology. 1979-1984. Universidad Autonoma de Nuevo Leon, Monterrey, Mexico.
  • Dissertation Title: Estudio Taxonomico y Ecologico de los Hongos Hipogeos (Zygomycetes, Ascomycetes y Basidiomycetes) en algunas localidades de los estados de Coah., Dgo. y N.L.

Fields of Specialization

  • Systematics and taxonomy of mycorrhizal fungi, mainly Coral and Sequestrate (Truffles) fungi
    Mycorrhizal ecology and applications
    Mycorrhizal status of rare and endangered plants
    Small mammal and slug mycophagy
    Record of Decision listed fungi in the Pacific Northwest Forests
    Belowground processes in ecosystems

Positions

  • 2002- Present. Mycology Consultant for MycoRoots (Sole proprietorship). A consulting company dedicated to provide expertise on mycorrhizal ecology and its assessment as well as mycorrhizal fungal identification to private landowners, government agencies and green industry businesses.
  • 1999- Present. Res. Assistant Prof. Dept. of Forest Science, Oregon State University.
  • 1995-1999. Research Associate, Dept. of Forest Science, Oregon State University.
  • 1994-1995. Associate Professor (courtesy), Dept. of Forest Science, Oregon State University.
  • 1993-1994. Associate Professor. Universidad Autonoma de Tamaulipas, Tam., Mexico.
  • 1992-1994. Associate Professor. Dept. of Biology, Inst. Tec. de Cd. Victoria, Tam., Mexico.
  • 1988-1991. Graduate Research Assistant. Dept. of Forest Science, Oregon State University.
  • 1986-1987. Research Assistant. Dept. of Forest Science, Oregon State University.
  • 1982-1984. Teaching Assistant in Mycology, Dept. of Biology, UANL, Monterrey, Mexico.

University Courses Taught

  • Research Methods, General Ecology, Principles of Silviculture, General Microbiology, Plant Pathology, Topics on Mycorrhizae Research and Sequestrate (Truffle) Fungi Identification.

Scientific Publications

  • Guevara G, G. Bonito; E. Cázares; R. A. Healy, R. Vilgalys and J. Trappe. 2015. Novel Tuber spp. (Tuberaceae, Pezizales) in the Puberulum Group from Mexico. Ascomycete.org 7 (6) : 367-374.
  • Jumpponen, A., S. P. Brown, J M. Trappe, E Cázares and R Strömmer. 2015. Analyses of Sporocarps, Morphotyped Ectomycorrhizae, Environmental ITS and LSU Sequences Identify Common Genera that Occur at a Periglacial Site. J. Fungi, 1, 76-93.
  • Guevara G, E. Cázares, G. Bonito, R. A. Healy, B. Stielow, J. Garcia, F. Garza-Ocañas, M. A. Castellano and  J. Trappe. 2014. Hongos Hipogeos de Tamaulipas. In Biodiversidad Tamaulipeca. Vol  2 num 1. pp 87-101.
  • Bonito G, Smith ME, Nowak M, Healy RA, Guevara G, Cazares, E, et al. (2013). Historical Biogeography and Diversification of Truffles in the Tuberaceae and Their Newly Identified Southern Hemisphere Sister Lineage. PLoS ONE 8(1): e52765-0052765.
  • Guevara G, G. Bonito, E. Cázares. 2013. Revisión del género Tuber (Tuberaceae: Pezizales) de México. Revista Mexicana de Biodiversidad 84.
  • Guevara G, G. Bonito, E. Cázares, G. Williams, R. A. Healy, C. Schadt, R. Vilgalys; J. Trappe. 2012. New North American truffle (Tuber, Pezizales) species and their ectomycorrhizal associations. Mycologia 105:194-209.
  • Jumpponen A, Brown SP, Trappe JM, Cázares E, Strömmer R. 2012. Twenty years of research on fungal − plant interactions on Lyman Glacier forefront – lessons learned and questions yet unanswered. Fung Ecol 5:430–442.
  • Guevara G, B. Stielow, H. Tamm, E. Cázares and M. Göker. 2012. Genea mexicana, sp. nov., and Geopora tolucana, sp. nov., new hypogeous Pyronemataceae from Mexico, and the taxonomy of Geopora reevaluated. Mycological Progress 11: 711-724.
  • Cazares, E., G. Guevara, J. Garcia, A. Estrada y J.M. Trappe. 2011. Tres nuevas especies de Ramaria de los bosques de encino del centro de México. Rev. Mex. Mic. 33:37-42
  • Cazares, E., G. Guevara, J. Garcia, y J.M. Trappe. 2008. Melanogaster minysporus sp. nov., a new sequestrate member of the Boletales from Mexico. Rev. Mex. Mic. 28: 67-69.
  • Guevara, G., M.A. Castellano, J. Garcia, E. Cazares, J.M. Trappe.  2008. Hysterangium (Hysterangiales, Hysterangiaceae) from northern Mexico. Rev. Mex. Mic. 28: 95-100.
  • Guevara G, G. Bonito, E. Cazares, J. Rodriguez, R. Vilgalys, J. Trappe. Tuber regiomontanum, una nueva especie de trufa de Mexico. Rev. Mex. Mic. 26: 17-20.
  • Trappe, M.J., K. Cromack, Jr., J.M. Trappe, D.D.B. Perrakis, E. Cazares-Gonzales, M.A. Castellano, and S.L. Miller. 2009. Interactions among prescribed fire, soil attributes, and mycor­rhizal community structure at Crater Lake National Park, Oregon, USA. Fire Ecology 5(2): 30-50.
  • Barroetavena, C., E. Cazares and M. Rajchenberg.  2007.  Ectomycorrhizal fungi associated with ponderosa pine and Douglas-fir: a comparison of species richness in native western North American forests and Patagonian plantations from Argentina.  Mycorrhiza 17:355-373.
  • Trappe, J.M. and E. Cazares.  2006.  Tuber guzmanii, a new truffle from southern Mexico.  International Journal of Medicinal Mushrooms.  International Journal of Medicinal Mushrooms 8:279-282.
  • Barroetavena, C., E. Cazares and M. Rajchenberg. 2006. Mycorrhizal fungi of Pseudotsuga menziesii, an introduced tree species in Central Patagonia (Argentina). Nova Hedwigia 83:53-66.
  • Cazares, E., J.M. Trappe and A. Jumpponen. 2005. Mycorrhizal Plant Colonization Patterns on a Subalpine Glacier Forefront: a Model System of Primary Succession. Mycorrhiza 15:405-416.
  • Nouhra, E., T. Horton, E. Cazares and M. Castellano. 2005. Morphological and molecular characterization of selected Ramaria mycorrhizae. Mycorrhiza 15:55-59.
  • Barroetavena, C., M. Rajchenberg and E. Cazares. 2005. Mycorrhizal fungal richness in Pinus ponderosa introduced in Patagonia, Argentina. Nova Hedwigia 80:453-464.
  • Lehmkuhl, J.F., L.E. Gould, E. Cazares, and D.R. Hosford. 2004. Truffle Abundance and Mycophagy by Northern Flying Squirrels in the Eastern Washington Cascade Range. Forest Ecology and Management 200:49-65.
  • Guevara, G., F. Ocanas, E. Cazares. 2004. Estudio del ITS nuclear de algunas especies del genero Cantharellus de Mexico. Ciencia UANL 7:371-378.
  • Trappe, J. M., R. Watling, E. Cazares and A.W. Claridge. 2003. Australasian sequestrate fungi 16. Gastrotylopilus, a Synonym of Fistulinella. Muelleriana 18:75-77.
  • Steinfeld, D., M.P. Amaranthus and E. Cazares. 2003. Survival of Ponderosa pine (Pinus ponderosa Dougl. ex Laws.) seedlings ouplanted with Rhizopogon mycorrhizae inoculated with spores at the nursery. Journal of Arboriculture 29:197-207.
  • McGraw, R., N. Duncan and E. Cazares. 2002. Fungi and other items consumed by the blue-gray taildropper slug (Prophysaon coeruleum) and the papillose taildropper slug (Prophysaon dubium) Based on Fecal Analysis. The Veliger 45:261-264.
  • Jumpponen, A., J. M. Trappe and E. Cazares. 2002. Occurrence of ectomycorrhizal fungi on a reciding glacier forefront. Mycorrhiza 12:43-49.
  • Loeb, S. C., F. H. Tainter, E. Cazares. 2000. Habitat associations of hypogeous fungi in the Southern Appalachians: Implications for the endangered Northern flying squirrel (Glaucomys sabrinus coloratus). Am. Midl. Nat. 144:286-296.
  • Trappe, J.M. and E. Cazares. 2000. Tuber maculatum around the world. Bulletin Semestriel de la FAMM ” (2000/2; n_ 18:107-112). France.
  • Jumpponen, A., J. M. Trappe and E. Cazares. 1999. Ectomycorrhizal fungi in Lyman Lake basin: a comparison between primary and secondary successional sites with reference to the early/late-stage model. Mycologia. 91:575-582.
  • Cazares, E., D. L. Luoma, M. P. Amaranthus, C. L. Chambers and J. F. Lehmkuhl. 1998. Interaction of fungal sporocarp production with small mammal abundance and diet in Douglas-fir stands of the southern Cascade range. Northwest Science 73:64-76.
  • Horton, T.R., E. Cazares, T.D. Bruns. 1998. Ectomycorrhizal, vesicular-arbuscular and dark septate fungal colonization of bishop pine (Pinus muricata) seedlings in the first 5 months of growth after wildfire. Mycorrhiza 8:11-18.
  • Smith, J. E., K. Johnson and E. Cazares. 1998. Vesicular mycorrhizal colonization of seedlings of Pinaceae and Betulaceae after spore inoculation with Glomus intraradices. Mycorrhiza 7:279-285.
  • Jumpponen, A., N. Weber, J. M. Trappe and E. Cazares. 1997. Distribution and ecology of an ascomycete, Sarcoleotia globosa (Sommerf.: Fr.) Korf, in North America. Canadian Journal of Botany 75:2228-2231.
  • Trappe, J. M., A. M. Jumpponen and E. Cazares. 1996. NATS Truffle and truffle-like fungi 5: Tuber Lyonii (=T. texense), with a key to the spiny-spored Tuber species groups. Mycotaxon 60:365-372.
  • Cazares, E. and J.E. Smith. 1996. Occurrence of vesicular-arbuscular mycorrhizae in Pseudotsuga menziesii and Tsuga heterophylla seedlings grown in Oregon Coast Range soils. Mycorrhiza 6: 65-67.
  • Cazares, E. and J.M. Trappe. 1994. Spore dispersal of hypogeous, ectomycorrhizal fungi on a glacier forefront by mammal mycophagy. Mycologia 86:507-510.
  • Cazares, E. and J. M. Trappe. 1993. Vesicular endophytes in roots of the Pinaceae. Mycorrhiza 2: 153-156.
  • Cazares, E., J. Garcia, J. Castillo and J.M. Trappe. 1992. Hypogeous fungi from northern Mexico. Mycologia 84:341-359.
  • Cazares, E. and J. M. Trappe. 1991. Alpine and subalpine fungi of the Cascade and Olympic Mountains. 3. Gastroboletus ruber comb. nov. Mycotaxon 42:339-345.
  • Cazares, E. and J. M. Trappe. 1991. Alpine and subalpine fungi of the Cascade and Olympic Mountains. 2. Macowanites lymanensis sp. nov. Mycotaxon 42:333-338.
  • Trappe, J. M. y E. Cazares. 1991. Evolucion y Ecologia de los Hongos Hipogeos. Revista Mexicana de Micologia 6:33-40.
  • Cazares, E. and J. M. Trappe. 1990. Alpine and subalpine fungi of the Cascade Mountains. 1. Hymenogaster glacialis sp. nov. Mycotaxon 38:245-249.
  • Luoma, D.L., J.M. Trappe, A.W. Claridge, K.M. Jacobs, and E. Cazares. 2003. Relationships among fungi and small mammals in forested ecosystems. In: Zable, C.J. and Anthony, R., eds. Mammal community dynamics in coniferous forests: Management and conservation issues in western North America. Cambridge University Press., New York. 707p.
  • Castellano, M.A., E. Cazares, B. Fondrick and T. Dreisbach. 2003. Handbook to additional fungal species of special concern in the Northwest Forest Plan. Gen. Tech. Rep. PNW-GTR-572. Portland, OR; U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 152 p.
  • Castellano, M.A., J.E. Smith, T. O’Dell, S. Nugen and E. Cazares. 1999. Handbook to Strategy 1 Fungal Species in the Northwest Forest Plan. Gen. Tech. Rep. PNW-GTR-476. Portland, OR; U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 195 p.
  • Amaranthus, M. P., E. Cazares and D. Perry. 1998. The role of soil organisms in restoration. Gen. Tech. Rep. PNW-GTR-461. Portland, OR; U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 179-189.
  • Amaranthus, M.P., D. Page-Dumroese, A. Harvey, E. Cazares and L. F. Bednar. 1996. Soil compaction and organic matter affect conifer seedling non-mycorrhizal and ectomycorrhizal root tip abundance and diversity. Res. Pap. PNW-RP-494. Portland, OR:U.S. Department of Agriculture, Forest Service, PNW Research Station. 12 p.
  • Cazares, E. 1993. Los hongos hipogeos de Mexico. Reporte Cientifico No. Esp. 13: 56-60.
  • Cazares, E. 1992. Mycorrhizal fungi and their relationship to plant succession in subalpine habitats. Ph.D. dissertation funded by NSF, Oregon State University, Corvallis, OR, 126 pp.
  • Cazares, E., Castellano, M.A. Amaranthus and J.M. Trappe. Corner’ss playground revisited. Mycological Society of America, Corvallis, OR. Summer 2002. Contributed presentation.
  • Cazares, E., Dreisbach, T., Castellano, M.A., Smith, J.E., and O’Dell, T. Occurrence of late successional fungal species in younger forest stands in the Oregon coast range. Mycological Society of America, Corvallis, OR. Summer 2002. Contributed presentation.
  • Trappe, J.M., Dominguez, L., Castellano, M., Cazares,E., Lebel,T., Claridge, A.W. Hypogeous fungi and the Gondwanan connection. Mycological Society of America, Corvallis, OR. Summer 2002. Contributed presentation.
  • Giachini, A.J., Spatafora, .J.W., Cazares, E., Trappe, J.M. Molecular phylogenetics of Gomphus and related genera inferred from nuclear large, mitochondrial small, and atp6 subunits ribosomal DNA sequences. Mycological Society of America, Corvallis, OR. Summer 2002. Contributed presentation.
  • Whitbeck, K.L. , Castellano, M.A. Spatafora, J.W., Cazares, E., Trappe, J.M. Systematics of the genus Gymnomyces (Russulales, Basidiomycota). Mycological Society of America, Corvallis, OR. Summer 2002. Contributed presentation.
  • Nouhra, E., Spatafora, J.W., Castellano, M. and Cazares, E. Molecular phylogeny of the genus Ramaria. Mycological Society of America, Corvallis, OR. Summer 2002. Contributed presentation.
  • Nouhra, E., T. Horton, E. Cazares and M. Castellano. Anatomical and molecular characterization of Ramaria ectomycorrhizae. Third International Conference on Mycorrhizae. Adelaide, Australia. Summer 2001.
  • Giachini, A.J., J.W. Spatafora, E. Cazares and J. M. Trappe. 2001. Molecular phylogenetics of Gomphus and related genera inferred from nuclear large and mitochondrial small subunits ribosomal DNA sequences. Third International Conference on Mycorrhizae. Adelaide, Australia. Summer 2001.
  • Cazares, E., 2000. The role of fungi in forest ecosystems. In Les champignons forestieres: recolte, commercialisation et conservation de la resource. J. A. Fortin & Y. Piche CRBF, Universite Laval, Quebec, 22 et 23 fÂ¥vrier 1999. P. 117.
  • Nelson, D., D. L. Luoma, E. Cazares. 2000. Small mammal mycophagy in the southern Washington Cascade Range. Northwest Scientific Associaton. 73 rd. meeting of the Northwest Scientific Association together with The Northwest Lichen and Moss Guild. March 17-18. University of Idaho. Moscow, Idaho.
  • Cazares, E., D. L. Luoma, J. Eberhart, M. P. Amaranthus, C. Cray, J. Dodd and M. McArthur. 1998. Hypogeous fungal diversity and biomass following salvage logging in Mt. Hood National Forest, Oregon, USA. Second International Conference on Mycorrhizae. Uppsala, Sweden.
  • Jumpponen, A., E. Cazares, J. M. Trappe, F. Camacho, and J. Platt. 1998. Ectomycorrhizal fungi in Lyman Lake Basin: a comparison between primary and secondary successional sites. Second International Conference on Mycorrhizae. Uppsala, Sweden.
  • Loeb, S. C., F. H. Tainter, E. Cazares. 1998. Habitat associations of hypogeous fungi in the Southern Appalachians: Implications for the endangered Northern flying squirrel (Glaucomys sabrinus coloratus). North American Mammolgy Society Meeting. Blacksburg, VA.
  • Cazares, E., D. L. Luoma, M. P. Amaranthus, C. L. Chambers and J. F. Lehmkuhl. 1998. Sporocarp biomass, small mammal abundance and diet in two southern cascade range forest stands. Northwest Scientific Association Society for Northwestern Vertebrate Biology. The Evergreen State College, Olympia, Washington.
  • Trappe, J.M., E. Cazares, A. Jumpponen & C. Hofle. 1996. Permafrozen, 17,600-year-old ecto- and VA-mycorrhizae, dark septate endophytes and Glomus spores from the Beringian land bridge, Seward Penninsula, Alaska. First International Conference on Mycorrhizae. Berkeley, California, USA.
  • Smith, J.E., K. Johnson, and E. Cazares. 1994. Glomus intraradices spore inoculation of Pinaceae and Betulaceae seedlings and effects on foliar phosphorus and nitrogen. 4th European Symposium on Mycorrhizas. Granada, Spain.
  • Amaranthus, M. P., E Cazares, and D. Steinfeld. 1993. VAM colonization with Glomus intraradices improves Libocedrus decurrens survival and growth in nursery and clear-cut sites. 9th North American Conference on Mycorrhizae. Guelph, Onatrio, Canada.
  • Cazares, E. and J. E. Smith. 1992. Occurrence of vesicular-arbuscular mycorrhizae in Douglas-fir and western hemlock seedlings. In : Mycorrhizas in Ecosystems. Ed. by D.J. Read, D.H. Lewis, A.H. Fitter and I.J. Alexander. CAB International, UK p.374.
  • Trappe, J.M., D. Luoma, E. Cazares and T. O’Dell. 1991. Naturally evolved roles of mycorrhizal fungi as determinants of plant succession: Glacier forefronts as model systems. 3rd. European Symposium on Mycorrhizas. Sheffield, England.
  • Cazares, E. and C. Y. Li. Effect of mycorrhizal fungal extract on bacterial nitogenase activity. 8th. North American Conference on Mycorrhizae. Jackson Hole, Wyoming.

Scientific presentations

  • Truffles: That is what’s for dinner. Universite Laval. Quebec City, Canada. November 13, 2013. Invited speaker.
  • The importance of fungi in the ecosystems. X Simposium Internacional de Ciencias. Instituto Tecnologico de Chetumal . Chetumal, Quintana Roo, Mexico. Oct 23-25, 2013. Invited speaker.
  • The importance of mycorrhizae in the Forest Ecosystems. XI Congreso Mexicano de Recursos Forestales. October 3, 2013. Invited speaker.
  • Ramaria in the Pacific Northwest forests. Vancouver Mycological Society. Vancouver, British Columbia, Canada, April 10, 2012.
  • Ramaria in the Pacific Northwest forests. Southern Vancouver Island Mycological Society. Vctoria, British Columbia, Canada. April 5, 2012.
  • Las Micorrizas y su importancia en los ecosistemas agricolas y forestales. IX Simposium Internacional de Ciencias. Instituto Tecnologico de Chetumal . Chetumal, Quintana Roo, Mexico. Oct 26-28, 2011.
  • Algunas historias ecológicas de los hongos micorrícicos en el Pacifico Noroeste de los Estados Unidos.  VI Symposium Ncional y III Reunion Iberoamericana de la Simbiosis Micorrizica. Universidad Autonoma de Tlaxcala. Septiembre 6-10, 2010.
  • Ramaria in the Pacific Northwest forests. North American Truffling Society. Corvallis, Oregon, February, 2010.
  • Mycorrhizae ecology.  Duke University.  Durham, North Carolina. January 18, 2010.
  • Introduction to Mycology 101. North American Truffle Growers Association. Winston-Salem, North Carolina.  January 16, 2010.
  • Ramaria of the Pacific Northwest Forests.  Oregon Mycological Society. Portland, Oregon. November 23, 2009.
  • Ecology of Mycorrhizal fungi in the Pacific Northwest of USA. Facultad de Ciencias Biologicas, UANL. Monterrey, N.L. Mexico April 23, 2009.
  • Mycorrhizae. Instituto Tecnologico de Cd. Victoria, Tamaulipas. Mexico. August 4, 2008.
  • Rare fungi Conservation in the Pacific Northwest.  I CONFERENCIAS MUNDIALES SOBRE CONSERVACIÓN Y USO SOSTENIBLE DE LOS HONGOS SILVESTRES.  Cordoba, Spain. December 2007.  Key Note Speaker and Scientific Committee member.
  • Ramaria: Identity secrets.  Pacific Northwest Key Council.  May 3-7, 2007.
  • Ramaria in the Pacific Northwest forests. North American Truffling Society. March 6, 2007.
  • Mycorrhizae in Agricultural Systems.Annual meeting- Giant Pumpkin Growers Association. Elk Grove, Sacramento, CA. March 17, 2007
  • Ramaria en el Pacifico Noroeste de Estados Unidos.  Congreso Mexicano de Micologia. Ensenada, BC, Mexico.  Oct 18-21.  2006.  Keynote Speaker.
  • Los Hongos micorricicos en los ecosistemas forestales. 3ra Exposicion Nacional de Hongos. Sociedad Mexicana de Micologia, Universidad Autonoma de Quereatro. Qro., Mexico. October3-5, 2005. Keynote Speaker.
  • Mycorrhizae of the Pacific Northwest plant communities.
    State of Florida Native Plant Society. Fort Myers, FL. May 2003. Keynote Speaker.
  • Mycorrhizae applications in restoration ecology.
    Workshop on Restoration Ecology. U. of Washington (Pack Research Forest). Nov. 2002.
  • Ecology of fungi listed in the Northwest Forest Plan.
    Cascade Mycological Society. Eugene, OR. November 2002.
  • Role of mycorrhizae in forest ecosystems.
    Dept. Forest Science module. Dr. Cromack. October 2002.
  • Ecology and taxonomy of the genus Ramaria.
    North American Mycological Association. Diamond Lake, OR. October 2002.
  • Indicators of ecosystem decline for sub-alpine forest systems at Crater Lake National Park: Effects of fire and anthropogenic disturbance on vegetation and mycorrhizal fungi.
    Workshop on Vegetation Restoration. Seattle, WA. September 2002.
  • Mycorrhizae of northwest plant communities and applications to restoration.
    Workshop on Vegetation Restoration. U. of Washington. Seattle, WA. February 2002.
  • Ecology of mycorrhizal fungi.
    Course on Ecosystem Management FS (565x). Fall 2001.
  • Survey and Management of mushroom species in the Siuslaw National Forest.
    North American Truffling Society. September 1999.
  • Diversity and dominance of mycorrhizal types on planted Douglas-fir seedlings and Hypogeous fungal diversity and biomass following salvage logging in Mt. Hood NF, Oregon, USA. Course on Ecosystem Management FS (565x). Fall 1999.
  • Mushrooms and Managers.
    Workshop. Umpqua National Forest, Roseburg, OR. Co-taught with Drs. D. Luoma, J.M. Trappe and David Pilz. November 1998.
  • Diversity and dominance of mycorrhizal types on planted Douglas-fir seedlings
    Course on Ecosystem Management FS (565x). Fall 1998. Invited.
  • Mushrooms and Managers.
    Workshop. Willamette National Forest, Blue River, OR. Co-taught with Drs. D. Luoma, J.M. Trappe. April 1998.
  • Introduction to VA Mycorrhizae Research. Intro. Mycology BOT 461/561, OSU. Fall 1997.
  • Hypogeous fungal diversity and biomass following salvage logging in Mt. Hood NF, OR.
    North American Truffling Society, Corvallis, OR. June 1997.
  • Underground Ecosystems. New Concepts in Ecosystem Management.
    Workshop. Bend, OR. June 1997.
  • Importancia de los Hongos Micorricicos en los Ecosistemas Forestales.
    Workshop. Universidad AutÛnoma de Queretaro. QRO, Mexico. 1996.
  • Dark-septate root endophytes: are they mycorrhizal?.
    Workshop. First International Conference on Mycorrhizae. Berkeley, CA. August 1996.
  • Mushrooms and Managers.
    Workshop. Malheur National Forest, La Grande, OR. Co-taught with Drs. D. Luoma, J.M. Trappe and D. Pilz. 1996.
  • Mushrooms and Managers.
    Workshop. Mt. Hood National Forest, Sandy, OR. Co-taught with Drs. D. Luoma, J.M. Trappe and D. Pilz. 1995.
  • Importancia de las Micorrizas en la Agricultura y Ecosistemas Forestales.
    Workshop. Instituto Tecnologico y Estudios Superiores de Monterrey, N.L. Mex. Co-taught-Drs. R. Molina, D. Perry, S. Berch, H. Massicote, J. Castillo and J.M. Trappe. 1993.
  • Truffling in Mexico.
    North American Truffling Society. Corvallis, OR. January 1989.
  • Hypogeous Fungi from Mexico.
    North American Truffling Society. Corvallis, OR. September 1988.
  • Topics on Mycorrhiza Research.
    Workshop. Universidad Nacional Autonoma de Mexico. Mexico City, 1988. Co-taught with Drs. M.P. Amaranthus and J.M. Trappe.
  • Corner’s playground revisited.
    Mycological Society of America, Corvallis, OR. Summer 2002.
  • Occurrence of late successional fungal species in younger forest stands in the Oregon coast range. Mycological Society of America, Corvallis, OR. Summer 2002.
  • Ecology of fungi listed in the Northwest Forest Plan.
    Forest Science Winter Term 2002 Seminar Series.
  • The importance of coarse woody debris on forest fungi.
    Symposium on Coarse Woody Debri. Reno, Nevada. November 1999. Invited.
  • The role of fungi in forest ecosystems.
    Quebec City, Quebec, Canada. February 1999. Invited.
  • Mycorrhizae as determinants of plant colonization in a glacier forefront.
    Department of Forest Science. Spring Seminars, 1997.
  • Hypogeous fungal diversity and biomass following salvage logging in Mt. Hood NF, OR.
    Mt. Hood National Forest-Barlow District, Dufur, Or. April 1997.
  • Micorrizas, manejo, aplicacion y ecologia.
    Instituto de Ecologia y Alimentos. UAT. Cd. Victoria, Mexico. May 1992.
  • Mycorrhizae as determinants of plant colonization in a glacier forefront.
    Breitenbush Mushroom conferences. Breitenbush, OR. October 1991.
  • Hypogeous Fungi from Mexico.
    Breitenbush Mushroom conferences. Breitenbush, OR. October 1991.

Professional Service

  • Manuscript reviewer for the following journals
    • Mycorrhiza
    • Mycologia
    • Mycological Research
    • Revista de la Sociedad Mexicana de FitopatologÃŒa
    • Canadian Journal of Botany
    • Journal of Mammalogy
    • Ecography
    • Forest Ecology and Management
    • Canadian Journal of Zoology
  • Proposal reviewed for the following agencies:
    • Evaluator – Research Proposals – CONACYT. Mex. 2001-Present.
    • USDA, National Research Initiative Competitive Grants Program. 2000.
    • Consejo Estatal de Ciencia y Tecnologia de Queretaro, Mexico. 1994.
  • Invited Lecturer. Dept. de Ciencias Forestales, U. Autonoma de N.L., Linares, Mexico. Present. Ph. D. Program on Natural Resources.
  • Consultant for various research projects with government agencies and private companies.
    • Fungal Identification of Coral, Sequestrate and Non-Gilled Basidiomycetes – USDA Forest Service. 2001-Present.
    • Diet analysis of a ROD-listed slug species in the Roseburg District. 2000
    • Mycorrhizal evaluation of 15 special status plant species in the Roseburg Dist. 1999
    • Mycorrhizal evaluation of Cypripedium fasciculatum in Medford District. 1999
    • Study of ROD-listed species in the Roseburg and Medford Districts. 1998
    • Fungal diversity at the Dworshal Water Reservoir area, Orofino, ID. 2000-2001.
    • Mycorrhiza experiments at the Herbert Stone Nursery, Central Point, OR. 2001.
    • Diet analysis of small mammals from the Wenatchee National Forests. 2001.
    • Fungal Identification of ROD listed species in the Rogue National Forest. 2002.
    • Fungal Identification of Sequestrate species for the Survey and Manage Mycology Team. 2002.
    • Mycorrhiza consultant for SoilFoodWeb, Inc. Corvallis, OR. 2000-Present.
    • Mycorrhiza consultant for Mycorrhizal Applications, Inc. Grants Pass, OR. Present.
  • Scientific fungal explorations
    • Mexico – 1988, 1995, 2002, 2003, 2004, 2005, 2007, 2008, 2009 and 2011.
    • Spain 2007 and 2013.
    • Costa Rica (Organization for Tropical Studies) – 1991.
    • Thailand, Southern China and Singapore -1995.
    • Australia 1996, 1999, 2001, 2010 and 2011.
    • Sweden and Norway -1998.
    • New Caledonia – 1999.
    • Argentina and Chile -2001.
    • Belgium- 2005.