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Department of Nematology

Howard Ferris


Professor & Nematologist
Office: 206 Robbins Hall
Lab: 105 Robbins Hall
Phone: 530-752-8432 (Office)
Phone: 530-752-2124 (Laboratory)
FAX: 530-752-5809

Appointment: 1972
B.S. University College of Rhodesia & Nyasaland 1964 Botany and Zoology
M.S. University of London 1968 Zoology; Nematology
Ph.D. North Carolina State University 1972 Plant Pathology

Lab Website
Prof. Ferris Laboratory Homepage

Teaching Disciplines
NEM100. General Plant Nematology. 4 units, Fall Quarter.
ABI 50C. Animal Biology. 3 units, Spring Quarter. Co-taught with R. Woodroffe.
PLB146. Rhizosphere Ecology. 3 units, Spring Quarter alternate years. Co-taught with D. Phillips.

Soil ecology; decomposition and nutrient cycling; contribution of nematodes to the structure and function of the soil food web. Population biology and population assessment of soil nematodes; integrated pest management.

Recent Graduate Students Current Positions:
Benjamin Newton Shouse. MS Ecology, 2000. Science Writer, Santa Cruz, California.
Miriam Volat. MS Vegetable Crops, 1999. Facilitator, Santa Rosa, California.
Inga Anne Zasada. PhD Plant Pathology, 2002. Research Plant Pathologist, USDA-ARS, Beltsville, Maryland.
Robert Charles Venette. PhD. Ecology., 1997. Assistant Professor, University of Minnesota.

Recent Postdoctoral Fellows and Current Positions:
Dr. Jianjun Chen. 1997-2001. Research Scientist, Department of Nematology, UC Davis.
Dr. Mario Tenuta. 2001-2002. Assistant Professor, Department of Soil Science, University of Mannitoba.
Dr. Shenglei Fu. 2002-2004. Director, Ecological Research Center, South China Botanical Garden.

Recent Visiting Scientists and Current Positions:
Ir. Robert Berkelmans. 2001-2002. Biological Farming Systems Group, Wageningen, Netherlands.
Dr. Martin Matute. 2002. Department of Biology, University of Arkansas Pine Bluff, Pine Bluff, Arkansas.
Dr. Hiroaki Okada. 1999-2000. Nematology and Soil Zoology Unit, National Institute for Agro-Environmental Sciences, Ibaraki, Japan.

Selected Publications:
Berkelmans, R., H. Ferris, M. Tenuta, A.H.C. van Bruggen. 2003. Effects of long-term crop management on nematode trophic levels other than plant feeders disappear after one year of disruptive soil management. Applied Soil Ecology 23:223-235.

Bongers, T. and H. Ferris. 1999. Nematode community structure as a bioindicator in environmental monitoring. Trends in Evolution and Ecology 14:224-228.

Brown, D.H., H. Ferris, S. Fu and R. Plant. 2004. Positive feedback in a model food web. Theoretical Population Biology 65:143-152.

Chen, J. and H. Ferris. 1999. The effects of nematode grazing on nitrogen mineralization during fungal decomposition of organic matter. Soil Biology and Biochemistry 31:1265-1279.

Chen, J. and H. Ferris. 2000. Growth and nitrogen mineralization of selected fungi and fungal-feeding nematodes on sand amended with organic matter. Plant and Soil 218:91-101.

Chen, J., H. Ferris, K. M. Scow and K. J. Graham. 1999. The effect of fungal-feeding nematodes on fungal biomass during decomposition of organic matter . Journal of Nematology 31:517.

Chen, J., H. Ferris, K. M. Scow, and K. J. Graham. 2001. Fatty acid composition and dynamics of selected fungal-feeding nematodes and fungi. Comparative Biochemistry and Physiology 130:135-144.

Chen, J., J.R. Carey, and H. Ferris. 2001. Comparative demography of isogenic populations of Caenorhabditis elegans. Experimental Gerontology 36:431-440.

Clark, M.S., W.R. Horwath, C. Shennan, K.M. Scow, W.T. Lanini and H. Ferris. 1999. Nitrogen, weeds and water as yield-limiting factors in conventional, low-input, and organic tomato systems. Agriculture, Ecosystems and Environment 73:257-270.

Ferris, H. 1999-2004. NEMAPLEX Nematode-Plant Expert Information System.

Ferris, H. 2004. Nematodes and the soil food web: understanding healthy soils. Pp 1-4 in M.S. Hoddle (ed) Proceedings of the California Conference on Biological Control IV. University of California.

Ferris, H. 2004. Nematodes: Ecology. Pp 809-812 in R. M. Goodman (ed) Encyclopedia of Plant and Crop Science. Marcel Dekker, Inc. New York.

Ferris, H. and L. Zheng. 1999. Plant sources of Chinese herbal remedies: Effects on Pratylenchus vulnus and Meloidogyne javanica. Journal of Nematology 31:241-263.

Ferris, H. and M. Matute 2003. Structural and functional succession in the nematode fauna of a soil food web. Applied Soil Ecology 23:93-110.

Ferris, H. T. Bongers and R. de Goede. 2002. Nematode faunal analyses to assess food web enrichment and connectance. Nematology 4:149.

Ferris, H., K.M. Jetter, I.A. Zasada, J.J. Chitambar, R.C. Venette, K.M. Klonsky, and J.O. Becker. 2003. Risk assessment of plant-parasitic nematodes. Pp 99-119 in D. Sumner (ed.) Exotic Pests and Diseases: Biology and Economics for Biosecurity. Iowa State Press, Ames.

Ferris, H., M.V. McKenry, B.A. Jaffee, C.E. Anderson, and A. Juurma. (in press). Population characteristics and dosage trajectory analysis for Mesocriconema xenoplax in California Prunus orchards. Journal of Nematology.

Ferris, H., R.C. Venette and K.M. Scow. 2004. Soil management to enhance bacterivore and fungivore nematode populations and their nitrogen mineralization function. Applied Soil Ecology 24:19-35.

Ferris, H., T. Bongers and R. De Goede. 2004. Nematode faunal analyses to assess food web enrichment and connectance. In R.C. Cook and D.J. Hunt (eds) Proceedings of the Fourth International Congress of Nematology. Nematology Monographs and Perspectives 2. Brill, Netherlands. 866p.

Ferris, H., T. Bongers and R. G. M. de Goede. 1999. Nematode faunal indicators of soil food web condition. Journal of Nematology 31:534-535.

Ferris, H., T. Bongers and R. G. M. de Goede. 2001. Nematode faunal profiles of soil ecosystems. Journal of Nematology 33:257.

Ferris, H., T. Bongers, and R. G. M. de Goede. 2001. A framework for soil food web diagnostics: extension of the nematode faunal analysis concept. Applied Soil Ecology 18:13-29.

Jackson, L. E., H. Ferris, S. R. Temple, K. B. Koffler and H. Minoshima. 2004. Cover crops, tillage and soil food webs. Sustainable Agriculture Farming Systems Project Newsletter 4(2-3):1-3.

Kim, D.G. and H. Ferris 2002. Relationship between crop losses and initial population densities of Meloidogyne arenaria in winter-grown oriental melon in Korea. Journal of Nematology 34:45-49.

Neher, D., T. Bongers and H. Ferris. 2004. Computation of Nematode Community Indices. Society of Nematologists Workshop, Estes Park, Colorado.

Okada, H., and H. Ferris. 2001. Temperature effects on growth and nitrogen mineralization of fungi and fungal-feeding nematodes. Plant and Soil 234:253-262. Phillips, D.A., H. Ferris, D.R. Cook and D.R. Strong. 2003. Molecular control points in rhizosphere food webs. Ecology 84:816-826.

Poudel, D.D., H. Ferris, K. Klonsky, W.R. Horwath, K.M. Scow, A.H.C. van Bruggen,W.T. Lanini, J.P. Mitchell, and S.R. Temple. 2001. The sustainable agriculture farming system project in California's Sacramento Valley. Outlook on Agriculture 30:109-116.

Raski, D., I. Thomason, J Chitambar and H. Ferris. 2002. A History of Nematology in California (120 p). ( Ruess, L. and H. Ferris. 2002. Decomposition pathways and successional changes. Nematology 4:159.

Ruess, L. and H. Ferris. 2004. Decomposition pathways and successional changes. In R.C. Cook and D.J. Hunt (eds) Proceedings of the Fourth International Congress of Nematology. Nematology Monographs and Perspectives 2. Brill, Netherlands. 866p.

Semenov, V.M., A.M. Semenov, A.H.C. van Bruggen, H. Ferris and T.V. Kuznetsova. 2002. Transformation of nitrogen in soil and plant residues by microbial communities and microfauna. Agrochemistry 1:5-11. (in Russian).

Shouse, B. N. and H. Ferris. 1999. Microbe-grazer-predator community dynamics during organic matter decomposition. Journal of Nematology 31:570.

Tenuta, M and H. Ferris. 2002. The nematode spin on soil food webs. Proceedings American Society of Entomology, Western Section.

Tenuta, M. and H. Ferris. 2004. Relationship between nematode life-history classification and sensitivity to stressors: ionic and osmotic effects of nitrogenous solutions. Journal of Nematology 36:85-94.

Zasada I.A., H. Ferris, C.L. Elmore, J.A. Roncoroni, J.D. MacDonald, L.R. Bolkan and L.E. Yakabe. 2003. Field application of brassicaceous amendments for control of soilborne pests and pathogens. Online. Plant Health Progress doi:10.1094/PHP-2003-1120-01-RS

Zasada, I.A. and H. Ferris. 2001. Changes in nematode community structure after the application of plant amendments. Journal of Nematology 33:284.

Zasada, I.A. and H. Ferris. 2002. Sensitivity of Meloidogyne javanica and Tylenchulus semipenetrans to isothiocyanates in laboratory bioassays. Nematology 4:294.

Zasada, I.A. and H. Ferris. 2003. Sensitivity of Meloidogyne javanica and Tylenchulus semipenetrans to isothiocyanates in laboratory assays. Phytopathology 93:747-750.

Zasada, I.A. and H. Ferris. 2004. Nematode suppression with brassicaceous amendments: application based upon glucosinolate profiles. Soil Biology and Biochemistry 36:1017-1024.

Zasada, I.A., H. Ferris and L. Zheng. 2002. Plant sources of Chinese herbal remedies: laboratory efficacy, suppression of Meloidogyne javanica in soil and phytotoxicity assays. Journal of Nematology 34:124-129.

Zheng, L., and H. Ferris. 2001. Effect of 58 herbal medicines on the plant-parasitic nematodes Meloidogyne javanica and Pratylenchus vulnus. Acta Phytopathologica Sinica 31:175-183 (in Chinese).

Zheng, L., I. A. Zasada, and H. Ferris. 1999. Application of Chinese herbal remedies for plant-parasitic nematode management. Journal of Nematology 31:584.