Department of Biology:

MICHAEL ALLEN

Professor, Department of Plant Pathology and Department of Biology
Director, Center for Conservation Biology
Office: University Lab Building 209
Phone (951) 827-5494

E-mail: michael.allen@ucr.edu

Degree: Ph.D., University of Wyoming , 1980

Dr. Allen Lab Webpage

My interests focus on the regulation of community and ecosystem processes by soil organisms with special emphasis on mycorrhizal fungi. My current research concentrates on global change dynamics and structure of undisturbed areas, and how that information can be utilized in the conservation and restoration of native ecosystems.

Recent Publications

Last three years:

Allen, M.F., R. Vargas, E. Graham, W Swenson, M. Hamilton, M. Taggart, T.C. Harmon, A Rat’ko, P Rundel, B. Fulkerson, and D. Estrin. In press. Soil sensor technology: Life within a pixel. BioScience.

Querejeta, J.I., M.F. Allen, M.M. Alguacil, and A. Roldan. 2007. Plant isotopic composition provides insight into mechanisms underlying growth stimulation by AM fungi in a semiarid environment. Functional Plant Biology 34: 683-691.

Barrows, C.W. and M.F. Allen. 2007. Persistence and local extinctions of endangered lizard Uma inornata on isolated habitat patches. Endangered Species Research 3: 61-88.

Barrows, C.W. and M.F. Allen. 2007. Biological monitoring and bridging the gap between land management and science. Natural Areas Journal 27: 194- 197.

Zimmer, K., M.A Hynson, G. Gebauer, E.B. Allen, M.F. Allen, and D.J. Read. 2007. Wide geographic and ecological distribution of nitrogen and carbon gains from fungi in pyroloids and monotropoids (Ericaceae) in orchids. New Phytologist 175: 166-175

Egerton-Warburton, L.M., J.I. Querejeta, and M.F. Allen. 2007. Common mycorrhizal networks provide a potential pathway for the transfer of hydraulically lifted water between plants. Journal of Experimental Botany 58: 1473- 1483.

Allen, M.F. 2007. Mycorrhizal fungi: highways for water and nutrients in arid soils. Vadose Zone Journal 6: 291-297.

Barrows, C.W. and M.F. Allen. 2007. Community complexity: stratifying monitoring schemes within a desert sand dune landscape. Journal of Arid Environments 69: 315-330.

Hamilton, M., E.A. Graham, P.W. Rundel, M.F. Allen, W. Kaiser, M.H. Hansen, and D.L. Estrin. 2007. New approaches in embedded networked sensing for terrestrial ecological observatories. Environmental Engineering Science 24: 192-204.

Barrows, C. W. and M. F. Allen. In press. Conservation implications of fragmentation in desert ecosystems. In R. H. Webb (ed.) The Mohave Desert Science Symposium.

Querejeta, J.I. H. Estrada-Medina, M.F. Allen, and J.J. Jimenez-Osornio. 2007. Water source partitioning among trees growing on shallow karst soils in a seasonally dry tropical climate. Oecologia 152: 26-36.

Querejeta, J.I., L.M. Egerton-Warburton, and M.F. Allen. 2007. Hydraulic lift may buffer rhizosphere hyphae against the negative effects of severe soil drying in a California oak savanna. Soil Biology and Biochemistry 39: 409-417.

Sirulnik, A.G., E.B. Allen, T. Meixner, M.E. Fenn, M.F. Allen. 2007. Impacts of anthropogenic N additions on nitrogen mineralization from plant litter in exotic annual grasslands. Soil Biology and Biochemistry 39: 24-32.

Querejeta, J.I. H. Estrada-Medina, M.F. Allen, J.J. Jimenez-Osornio, and R. Ruenes. 2006. Utilization of bedrock water by Brosimum alicastrum trees growing on shallow soil atop limestome in a dry tropical climate. Plant and Soil 287: 187-197.

Chen, X., B. –L. Li, T. Scott, and M.F. Allen. 2006. Tolerance analysis of habitat loss for multispecies conservation in western Riverside County, California, USA. International Journal of Biodiversity Science and Management 2: 87-96.

Querejeta, J.I., M.F. Allen, F. Caravaca, and A. Roldan. 2006. Differential modulation of host plant ?¹³C and ?¹⁸O by native and non-native arbuscular mycorrhizal fungi in a semiarid environment. New Phytologist 169: 379-387.

Barrows, C.W., M.F. Allen and J.T. Rotenberry. 2006. Boundary processes between a desert sand dune community and an encroaching suburban landscale. Biological Conservation 131: 486-494.

Scott, T.A., L. Fernandez, and M.F. Allen. 2006. Land Use Planning and the Endangered Species Act, p. 318-332, in Goble, D.D., Scott, J.M., and Davis, F.W. (eds), The Endangered Species Act at Thirty: Renewing the Conservation Promise, Volume II. Island Press, Washington, DC.

Allen, M.F. 2006. Water dynamics of mycorrhizas in arid soils. In: Fungi in biogeochemical cycles. G.M. Gadd, editor, pp 74-97. Cambridge University Press.

Allen, M.F., J.N. Klironomos, K.K. Treseder, and W.C. Oechel. 2005. Responses of soil biota to elevated CO₂ in a chaparral ecosystem. Ecological Applications.15: 1701-1711.

Klironomos, J.N., M.F. Allen, M.C. Rillig, J. Piotrowski, S. Makvandi-Nejad, B.E. Wolfe, and J.R. Powell. 2005. Abrupt rise in atmospheric CO₂ overestimates community response in a model plant-soil system. Nature (London) 433: 621-624.

Allen, M.F., E.B. Allen and A. Gomez-Pompa. 2005. Effects of mycorrhizae and nontarget organisms on restoration of seasonal tropical forest in Quintana Roo, Mexico: factors limiting tree establishment. Restoration Ecology 13: 325-333.

Chen, X., B-L. Li, T.A. Scott, T. Tennant, J.T. Rotenberry, and M.F. Allen. 2005. Spatial structure of multispecies distributions in southern California, USA. Biological Conservation 124: 169-175.

Barrows, C.W., M.B. Swartz, W.L. Hodges, M.F. Allen, J.T. Rotenberry, and B-L. Li. 2005. A framework for monitoring multiple species conservation plans. Journal of Wildlife Management 69: 1333-1345.

Treseder, K.K., M.F. Allen, R.W. Ruess, K.S. Pregitzer, and R.L. Hendrick. 2005. Lifespans of fungal rhizomorphs under nitrogen fertilization in a pinyon-juniper woodland. Plant and Soil 270: 249-255.

Corkidi, L. E.B. Allen, D. Merhaut, M.F.Allen, J. Downer, J. Bohn, and M. Evans. 2005. Effectiveness of commercial mycorrhizal inoculants on the growth of Liquidambar styraciflua in plant nursery conditions. Journal of Environmental Horticulture 23: 72-76.

Allen, M.F., C. Crisifulli, S. Morris, L. Egerton-Warburton, J.A. MacMahon, and J. Trappe. 2005. Mycorrhizae and Mount St. Helens: Story of a symbiosis. Pp. 221-231 In: Ecological Responses to the 1980 Eruptions of Mount St. Helens. Dale, V.H., Swanson, F.J. and C.M. Crisafulli (eds.). Springer-Verlag, New York.

Bornyasz, M.A. R. Graham, and M.F. Allen. 2005. Ectomycorrhizae in a soil-weathered granitic bedrock regolith: linking matrix resources to plants. Geoderma 126: 141-160.

Treseder, K. K., S. J. Morris, and M. F. Allen. 2005, The contribution of root exudates, symbionts, and detritus to carbon sequestration in the soil. In: Roots and soil management-- Interactions between roots and soil. pp 145-162S. F. Wright and R. Zobel, eds. Agronomy Monograph No 48. American Agronomy Society, Madison WI.

Courses taught:

Biology 116 Ecology and Conservation Biology
Biology 166 Conservation Ecology
Biology 212 Ecological Systems in Space and Time

Last updated 12 Oct. 2007




BIOLOGY HOME ABOUT US PEOPLE ACADEMIC PROGRAMS COURSES WEEKLY SEMINARS NEWS/EVENTS LINKS NATURAL RESERVES UCIRPEE NERE CONTACT PHOTO GALLERY JOBS	MICHAEL ALLEN Professor, Department of Plant Pathology and Department of Biology Director, Center for Conservation Biology Office: University Lab Building 209 Phone (951) 827-5494 E-mail: michael.allen@ucr.edu Degree: Ph.D., University of Wyoming , 1980 Dr. Allen Lab Webpage My interests focus on the regulation of community and ecosystem processes by soil organisms with special emphasis on mycorrhizal fungi. My current research concentrates on global change dynamics and structure of undisturbed areas, and how that information can be utilized in the conservation and restoration of native ecosystems. Recent Publications Last three years: Allen, M.F., R. Vargas, E. Graham, W Swenson, M. Hamilton, M. Taggart, T.C. Harmon, A Rat’ko, P Rundel, B. Fulkerson, and D. Estrin. In press. Soil sensor technology: Life within a pixel. BioScience. Querejeta, J.I., M.F. Allen, M.M. Alguacil, and A. Roldan. 2007. Plant isotopic composition provides insight into mechanisms underlying growth stimulation by AM fungi in a semiarid environment. Functional Plant Biology 34: 683-691. Barrows, C.W. and M.F. Allen. 2007. Persistence and local extinctions of endangered lizard Uma inornata on isolated habitat patches. Endangered Species Research 3: 61-88. Barrows, C.W. and M.F. Allen. 2007. Biological monitoring and bridging the gap between land management and science. Natural Areas Journal 27: 194- 197. Zimmer, K., M.A Hynson, G. Gebauer, E.B. Allen, M.F. Allen, and D.J. Read. 2007. Wide geographic and ecological distribution of nitrogen and carbon gains from fungi in pyroloids and monotropoids (Ericaceae) in orchids. New Phytologist 175: 166-175 Egerton-Warburton, L.M., J.I. Querejeta, and M.F. Allen. 2007. Common mycorrhizal networks provide a potential pathway for the transfer of hydraulically lifted water between plants. Journal of Experimental Botany 58: 1473- 1483. Allen, M.F. 2007. Mycorrhizal fungi: highways for water and nutrients in arid soils. Vadose Zone Journal 6: 291-297. Barrows, C.W. and M.F. Allen. 2007. Community complexity: stratifying monitoring schemes within a desert sand dune landscape. Journal of Arid Environments 69: 315-330. Hamilton, M., E.A. Graham, P.W. Rundel, M.F. Allen, W. Kaiser, M.H. Hansen, and D.L. Estrin. 2007. New approaches in embedded networked sensing for terrestrial ecological observatories. Environmental Engineering Science 24: 192-204. Barrows, C. W. and M. F. Allen. In press. Conservation implications of fragmentation in desert ecosystems. In R. H. Webb (ed.) The Mohave Desert Science Symposium. Querejeta, J.I. H. Estrada-Medina, M.F. Allen, and J.J. Jimenez-Osornio. 2007. Water source partitioning among trees growing on shallow karst soils in a seasonally dry tropical climate. Oecologia 152: 26-36. Querejeta, J.I., L.M. Egerton-Warburton, and M.F. Allen. 2007. Hydraulic lift may buffer rhizosphere hyphae against the negative effects of severe soil drying in a California oak savanna. Soil Biology and Biochemistry 39: 409-417. Sirulnik, A.G., E.B. Allen, T. Meixner, M.E. Fenn, M.F. Allen. 2007. Impacts of anthropogenic N additions on nitrogen mineralization from plant litter in exotic annual grasslands. Soil Biology and Biochemistry 39: 24-32. Querejeta, J.I. H. Estrada-Medina, M.F. Allen, J.J. Jimenez-Osornio, and R. Ruenes. 2006. Utilization of bedrock water by Brosimum alicastrum trees growing on shallow soil atop limestome in a dry tropical climate. Plant and Soil 287: 187-197. Chen, X., B. –L. Li, T. Scott, and M.F. Allen. 2006. Tolerance analysis of habitat loss for multispecies conservation in western Riverside County, California, USA. International Journal of Biodiversity Science and Management 2: 87-96. Querejeta, J.I., M.F. Allen, F. Caravaca, and A. Roldan. 2006. Differential modulation of host plant ?¹³C and ?¹⁸O by native and non-native arbuscular mycorrhizal fungi in a semiarid environment. New Phytologist 169: 379-387. Barrows, C.W., M.F. Allen and J.T. Rotenberry. 2006. Boundary processes between a desert sand dune community and an encroaching suburban landscale. Biological Conservation 131: 486-494. Scott, T.A., L. Fernandez, and M.F. Allen. 2006. Land Use Planning and the Endangered Species Act, p. 318-332, in Goble, D.D., Scott, J.M., and Davis, F.W. (eds), The Endangered Species Act at Thirty: Renewing the Conservation Promise, Volume II. Island Press, Washington, DC. Allen, M.F. 2006. Water dynamics of mycorrhizas in arid soils. In: Fungi in biogeochemical cycles. G.M. Gadd, editor, pp 74-97. Cambridge University Press. Allen, M.F., J.N. Klironomos, K.K. Treseder, and W.C. Oechel. 2005. Responses of soil biota to elevated CO₂ in a chaparral ecosystem. Ecological Applications.15: 1701-1711. Klironomos, J.N., M.F. Allen, M.C. Rillig, J. Piotrowski, S. Makvandi-Nejad, B.E. Wolfe, and J.R. Powell. 2005. Abrupt rise in atmospheric CO₂ overestimates community response in a model plant-soil system. Nature (London) 433: 621-624. Allen, M.F., E.B. Allen and A. Gomez-Pompa. 2005. Effects of mycorrhizae and nontarget organisms on restoration of seasonal tropical forest in Quintana Roo, Mexico: factors limiting tree establishment. Restoration Ecology 13: 325-333. Chen, X., B-L. Li, T.A. Scott, T. Tennant, J.T. Rotenberry, and M.F. Allen. 2005. Spatial structure of multispecies distributions in southern California, USA. Biological Conservation 124: 169-175. Barrows, C.W., M.B. Swartz, W.L. Hodges, M.F. Allen, J.T. Rotenberry, and B-L. Li. 2005. A framework for monitoring multiple species conservation plans. Journal of Wildlife Management 69: 1333-1345. Treseder, K.K., M.F. Allen, R.W. Ruess, K.S. Pregitzer, and R.L. Hendrick. 2005. Lifespans of fungal rhizomorphs under nitrogen fertilization in a pinyon-juniper woodland. Plant and Soil 270: 249-255. Corkidi, L. E.B. Allen, D. Merhaut, M.F.Allen, J. Downer, J. Bohn, and M. Evans. 2005. Effectiveness of commercial mycorrhizal inoculants on the growth of Liquidambar styraciflua in plant nursery conditions. Journal of Environmental Horticulture 23: 72-76. Allen, M.F., C. Crisifulli, S. Morris, L. Egerton-Warburton, J.A. MacMahon, and J. Trappe. 2005. Mycorrhizae and Mount St. Helens: Story of a symbiosis. Pp. 221-231 In: Ecological Responses to the 1980 Eruptions of Mount St. Helens. Dale, V.H., Swanson, F.J. and C.M. Crisafulli (eds.). Springer-Verlag, New York. Bornyasz, M.A. R. Graham, and M.F. Allen. 2005. Ectomycorrhizae in a soil-weathered granitic bedrock regolith: linking matrix resources to plants. Geoderma 126: 141-160. Treseder, K. K., S. J. Morris, and M. F. Allen. 2005, The contribution of root exudates, symbionts, and detritus to carbon sequestration in the soil. In: Roots and soil management-- Interactions between roots and soil. pp 145-162S. F. Wright and R. Zobel, eds. Agronomy Monograph No 48. American Agronomy Society, Madison WI. Courses taught: Biology 116 Ecology and Conservation Biology Biology 166 Conservation Ecology Biology 212 Ecological Systems in Space and Time Last updated 12 Oct. 2007
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