Satoru Hobara

Rakuno Gakuen University

Ph.D., Kyoto University, 2002
B.S., Kyoto University, 1997

Research interests:
  • Constraint of geochemical properties on organisms and influence of organisms on geochemical properties
  • Dynamics and degradation of soil organic matter, in relation to microorganisms, minerals, and biomoleculars

Publications in peer-reviewed, international journals:

  • Liu, X., Koba, K., Koyama, L., Hobbie, S., Weiss, M., Inagaki, Y., Shaver, G., Giblin, A., Hobara, S., Nadelhoffer, K., Sommerkorn, M., Rastetter, E., Kling, G., Laundre, J., Yano, Y., Makabe, A., Yano, M., Liu, C. (2018) Nitrate is an important nitrogen source for arctic tundra plants. Proceedings of the National Academy of Sciences, USA [in press]

  • Hirose, D., Hobara, S., Tanabe, Y., Uchida, M., Kudoh, S., Osono, T. (2017) Abundance, richness, and microfungi in relation to chemical changes in Antarctic moss profiles. Polar Biology 40: 2457-2468.

  • Hirose, D., Hobara, S., Matsuoka, S., Kato, K., Tanabe, Y., Uchida, M., Kudoh, S., Osono, T. (2016) 
  • Diversity and community assembly of moss-associated fungi in 
  • ice-free coastal outcrops of continental Antarctica. Fungal Ecology 24: 94-101.

  • Hobara, S., Fukunaga-Yoshida, S., Suzuki, T., Matsumoto, S., Matoh, T., Ae, N. (2016) Plant silicon uptake increases active aluminum minerals in root-zone soil: implications for plant influence on soil carbon. Geoderma 279: 45-52.

  • Hobara, S., Kushida, K., Kim, Y.W., Koba, K., Lee, B.Y., Ae, N. (2016) Relationships among pH, minerals, and carbon in soils from tundra to boreal forest across Alaska. Ecosystems 19: 1092-1103.

  • Matsuoka, S., Mori, A.S., Kawaguchi, E., Hobara, S., Osono, T. (2016) Disentangling the relative importance of host tree community, abiotic environment, and spatial factors on ectomycorrhizal fungal assemblages along an elevation gradient. FEMS Microbiology Ecology 92 DOI:10.1093/femsec/fiw044

  • Kushida, K., Hobara, S., Tsuyuzaki, S., Kim, Y., Watanabe, M., Setiawan, Y., Harada, K., Shaver, G.R., Fukuda, M. (2015) Spectral indices for remote sensing of phytomass, deciduous shrubs, and productivity in Alaskan arctic tundra. International Journal of Remote Sensing 36: 4344-4363.

  • Hagiwara, Y., Matsuoka, S., Hobara, S., Mori, A.S., Hirose, D., Osono, T. (2015) Bleaching of leaf litter and associated microfungi in subboreal and subalpine forests. Canadian Journal of Microbiology 61: 735-743.

  • Katsumata, S., Hobara, S., Osono, T., Takeda, H. (2015) Mass, nitrogen content, and decomposition of woody debris in forest stands affected by excreta deposited in nesting colonies of Great Cormorant. Ecological Research 30: 555-561.

  • Mori, A.S., Shiono, T., Haraguchi, T.F., Ota, A.T., Kiode, D., Ohgue, T., Kitagawa, R., Maeshiro, R., Aung, T.T., Nakamori, T., Hagiwara, Y., Matsuoka, S., Ikeda, A., Hishi, T., Hobara, S., Mizumachi, E., Frisch, A., Thor, G., Fujii, S., Osono, T., Gustafsson, L. (2015) Functional redundancy of multiple forest taxa along an elevational gradient: predicting the consequences of non-random species loss and the emergence of novel communities. Journal of Biogeography 42: 1383-1396.

  • Hobara, S., Osono, T., Hirose, D., Noro, K., Hirota, M., and Benner, R. (2014) The roles of microorganisms in litter decomposition and soil formation. Biogeochemistry 118: 471-486.

  • Hobara, S., Koba, K., Ae, N., Giblin, A.E., Kushida, K., and Shaver, G.R. (2013) Geochemical influences on solubility of soil organic carbon in arctic tundra ecosystems. Soil Science Society of America Journal 77: 473-481.

  • Osono, T., Hobara, S., Hishinuma, T., and Azuma, J.I. (2011) Selective lignin decomposition and nitrogen mineralization in forest litter colonized by Clitocybe sp. European Journal of Soil Biology 47: 114-121.

  • Hobara, S., Mizuno, N., Amano, Y., Yokota, H., and Taniyama, H. (2009) Mercury distribution in tephra soil layers in Hokkaido, Japan, with reference to 34000-year stratification. Soil Science & Plant Nutrition 55: 582-589.

  • Ohte, N., Tokuchi, N., and Hobara, S. (2006) Impact of forest defoliation by pine-wilt disease on biogeochemical cycling and streamwater chemistry in a headwater catchment in central Japan. Advances in Geosciences 4: 1-6.

  • Kameda, K., Koba, K., Hobara, S., Osono, T. and Terai, M. (2006) Pattern of natural 15N abundance in lakeside forest ecosystem affected by cormorant-derived nitrogen. Hydrobiologia DOI:10.1007/s10750-006-0052-0, 69-86.

  • Hobara, S., McCalley, C., Koba, K., Giblin, A.E., Weiss, M.S., Gettel, G.M., and Shaver, G.R. (2006) Nitrogen fixation in an arctic tundra watershed: A key atmospheric N source. Arctic, Antarctic, & Alpine Research 38: 363-372.

  • Osono, T., Hobara, S., Koba, K., and Kameda, K. (2006) Reduction of fungal growth and lignin decomposition in needle litter by avian excreta. Soil Biology & Biochemistry 38: 1623-1630.

  • Osono, T., Hobara, S., Koba, K., and Kameda, K. (2006) Immobilization of avian excreta-derived nutrients and reduced lignin decomposition in needle and twig litter in a temperate coniferous forest. Soil Biology & Biochemistry 38: 517-525.

  • Hobara, S., Koba, K., Osono, T., Tokuchi, N., Ishida, A. and Kameda, K. (2005) Nitrogen and phosphorus enrichment and balance in forests colonized by cormorants: implications of the influence of soil adsorption. Plant & Soil 268: 89-101.

  • Tokuchi, N., Ohte, N., Hobara, S., Kim, S. and Katsuyama, M. (2004) Changes in biogeochemical cycling following forest defoliation by pine wilt disease in Kiryu experimental catchment in Japan. Hydrological Processes 18:2727-2736.

  • Kim, S-J., Ohte, N., Kawasaki, M., Katsuyama, M., Tokuchi, N. and Hobara, S. (2003) Interactive responses of dissolved sulfate and nitrate to disturbance associated with pine wilt disease in a temperate forest. Soil Science & Plant Nutrition 49: 539-550.

  • Ohte, N., Tokuchi, N., Katsuyama, M., Hobara, S., Asano, Y., and Koba, K. (2003) Episodic increases in nitrate concentrations in streamwater due to the partial dieback of a pine forest in Japan: runoff generation processes control seasonality. Hydrological Processes 17: 237-249.

  • Osono, T., Hobara, S., Fujiwara, S., Koba, K., and Kameda, K. (2002) Abundance, diversity, and species composition of fungal communities in a temperate forest affected by the Great Cormorant Phalacrocorax carbo. Soil Biology & Biochemistry 34: 1537-1547.

  • Hobara, S., Osono, T., Koba, K., Tokuchi, N., Fujiwara, S., and Kameda, K. (2001) Forest floor quality and N transformations in a temperate forest affected by avian-derived N deposition. Water, Air, & Soil Pollution 130: 679-684.

  • Hobara, S., Tokuchi, N., Ohte, N., Koba, K., Katsuyama, M., Kim, S-J., and Nakanishi, A. (2001) Mechanism of nitrate loss from a forested catchment following a small-scale, natural disturbance. Canadian Journal of Forest Research 31: 1326-1335.