menu

Publications

Original papers and reviews (refereed)

  1. Elvira NJ, Ushio M, Sakai S (in press) Are microbes growing on flowers evil? Effects of old flower microbes on fruit set in a wild ginger with one-day flowers, Alpinia japonica (Zingiberaceae). Metabarcoding and Metagenomics.
  2. Hiiragi K, Matsuo N, Sakai S, Kawahara K, Ichie T, Kenzo T, Aurelia DC, Kume T, Nakagawa M. (2022) Water uptake patterns of tropical canopy trees in Borneo: Species-specific and temporal variation and relationships with aboveground traits. Tree Physiology.
  3. Takeda K, Sakai S (2022) Idea paper: Extended benefits of pollinator‐mediated microbial dispersal among flowers. Ecological Research
  4. Marre M, Ushio M, Sakai S (2022) The effects of the floral infection by a bacterial pathogen in a dioecious plant, Mallotus japonicus (Euphorbiaceae). Population Ecology. doi.org/10.1002/1438-390X.12110.
  5. Ueno H, Araya K, Meleng P, Kaliang CH, Sakai S, Kishimoto-Yamada K, Kon M, Itioka T, Satake A (2021) Six-year population dynamics of seven passalid species in a humid tropical rainforest in Borneo. Entomological Science 24(4): 399-409. DOI: 10.1111/ens.12490.
  6. Marre M, Ushio M, Sakai S (2021) Contrasting microbial communities on male and female flowers of a dioecious plant, Mallotus japonicus (Euphorbiaceae). Environmental DNA. doi.org/10.1002/edn3.271.
  7. Nagaoka, N., Naoe, S., Takano-Masuya, Y., & Sakai, S. (2020). Green greenhouse: leaf enclosure for fruit development of an androdioecious vine, Schizopepon bryoniifolius. Proceedings of the Royal Society B, 287(1936), 20201718.
  8. Metelmann, S., Sakai, S., Kondoh, M., Telschow, A. (2020) Evolutionary stability of plant–pollinator networks: efficient communities and a pollination dilemma. Ecology Letters.
  9. Ushio, M., Osada, Y., Kumagai, T. O., Kume, T., Pungga, R. A. S., Nakashizuka, T., Itioka, T., Sakai, S.(2020). Dynamic and synergistic influences of air temperature and rainfall on general flowering in a Bornean lowland tropical forest. Ecological Research 35: 17-29.
  10. Sakai, S., Kitajima, K. (2019) Tropical phenology: Recent advances and perspectives Ecological Research 34: 50-54
  11. Naoe, S., Masaki, T., Sakai, S. (2018) Effects of temporal variation in community-level fruit abundance on seed dispersal by birds across woody species. American Journal of Botany.
  12. Ollerton, J. and 74 co-authors including Sakai, S. as 63rd. (2018) The diversity and evolution of pollination systems in large plant clades: Apochynaceae as a case study. Annals of Botany, doi.org/10.1093/aob/mcy127.
  13. Geijzendorffer, I. R., van Teeffelen, A. J. A., Allison, H., Braun, D., Horgan, K., Iturrate-Garcia, M., Santos, M. J., Pellissier, L., Prieur-Richard, A-H., Quatrini, S., Sakai, S., Zuppinger-Dingley, D. (2017) How can global conventions for biodiversity and ecosystem services guide local conservation actions? Current Opinion in Environmental Sustainability 29: 145-150, doi.org/10.1016/j.cosust.2017.12.011.
  14. Asano, I., Itioka, T., Kishimoto-Yamada, K., Shimizu-kaya, U., Mohammad, F. B., Hossman, M. Y., Bunyok, A., Rahman, M. Y. A., Sakai, S., Meleng, P. (2017) Increased seed predation in the second fruiting event during an exceptionally long period of community-level masting in Borneo. Ecological Research 32: 537. doi:10.1007/s11284-017-1465-0.
  15. Sakai, S., Metelmann, S., Toquenaga, Y., Telschow, A. (2016) Geographical variation in the heterogeneity of mutualistic networks. Royal Society Open Science, DOI: 10.1098/rsos.150630.
  16. Yamasaki, E., Inui, Y., Sakai, S. (2016) Ant-Repelling Pollinators of the Myrmecophytic Macaranga winkleri (Euphorbiaceae). Evolutionary Biology 43: 407-413.
  17. Sakai, S., Keong, C.Y., Koizumi, M., Kishimoto-Yamada, K., Takano, K. T., Ichikawa M, Samejima, H., Kato, Y., Soda, R., Ushio, M., Saizen, I., Nakashizuka, T., Itioka, T. (2016) Social and ecological factors associated with the use of non-timber forest products by people in rural Borneo. Biological Conservation 204: 340-349.
  18. Ushio, M., Yamasaki, E., Takasu, H., Nagano, A. J., Fujinaga, S., Honjo, M. N., Ikemoto, M., Sakai, S., Kudoh, H. (2015) Microbial communities on flower surfaces act as signatures of pollinator visitation. Scientific Reports 5, Article number: 8695 doi:10.1038/srep08695.
  19. Yamasaki, E., Kawakita, A., Sakai, S. (2015) Diversity and evolution of pollinator rewards and protection by Macaranga (Euphorbiaceae) bracteoles. Evolutionary Ecology. DOI: 10.1007/s10682-014-9750-7.
  20. Ishii, R., Sakai, S., Fujita, N., Itioka, T., Yamamura, N. (2014) Collapse and restoration of ecosystem networks under human activity. Global Environmental Research 18: 133-143.
  21. Tokumoto, Y., Sakai, S., Matsushita, M., Ohkubo, T., Nakagawa, M. (2014). Spatiotemporal variability in the reproductive success of the continually flowering shrub Dillenia suffruticosa in Borneo. Biotropica 46: 583-590.
  22. Kishimoto-Yamada, K., Kamiya, K., Meleng, P., Diway, P., Kaliang, H., Chong, L., Itioka, T., Sakai, S., Ito, M. (2013) Wide host ranges of herbivorous beetles? : Insights from DNA barcoding. PloS ONE 8: e74426.
  23. Hirose, D., Sakai, S., Itioka, T., Osono, T. (2013) Microfungi associated with a myrmecophyte Macaranga bancana. Tropics 22: 19-25.
  24. Yamasaki, E., Inui, Y., Sakai, S. (2013) Production of food bodies on the reproductive organs of myrmecophytic Macaranga species (Euphorbiaceae): effects on interactions with herbivores and pollinators. Plant species biology. DOI: 10.1111/1442-1984.12015.
  25. Yamasaki, E., Kawakita, A., Sakai, S. (2013) Modified leaves with disk-shaped nectaries of Macaranga sinensis (Euphorbiaceae) provide reward for pollinators. American Journal of Botany 100 :628-632. DOI: 10.3732/ajb.1200600.
  26. Sakai, S., Kawakita, A., Ooi, K., Inoue, T. (2013) Variation in the strength of association among pollination systems and floral traits: Evolutionary changes in the floral traits of Bornean gingers (Zingiberaceae). American Journal of Botany 100:546-555. DOI: 10.3732/ajb.1200359.
  27. Yamasaki, E., Sakai, S. (2013) Wind and insect pollination (ambophily) of Mallotus spp. (Euphorbiaceae) in tropical and temperate forests. Australian Journal of Botany 61: 60-66. DOI: 10.1071/BT12202.
  28. Nakagawa, M., Momose, K., Kishimoto-Yamada, K., Kamoi, T., Tanaka, H. O., Kaga, M., Yamashita, S., Itioka, T., Nagamasu, H., Sakai, S., Nakashizuka, T. (2013) Tree community structure, dynamics, and diversity partitioning in a Bornean tropical forested landscape. Biodiversity Conservation 22: 127-140.
  29. Nakagawa, M., Matsushita, M., Kurokawa, H., Samejima, H., Takeuchi, Y., Aiba, M., Katayama, A., Tokumoto, Y., Kume, T., Yoshifuji, N., Kuraji, K., Nagamasu, H., Sakai, S., Nakashizuka, T. (2012) Possible negative effect of general flowering on tree growth and aboveground biomass increment in a Bornean tropical rainforest. Biotropica 44: 715–719.
  30. Naoe, S., Sakai, S., Masaki, T. (2012) Effect of forest shape on habitat selection of birds in a plantation-dominant landscape across seasons: Comparison between continuous and strip forests. Journal of Forest Research 17: 219-223.
  31. Laurence, W. F. and 215 co-authors including Sakai, S. as 177th. (2012) Averting biodiversity collapse in tropical forest protected areas. Nature 489: 290-294.
  32. Naoe, S., Sakai, S., Sawa, A., Masaki, T. (2011) Seasonal difference in the effects of fragmentation on seed dispersal by birds in Japanese temperate forests. Ecological Research 26: 301-309.
  33. Kishimoto-Yamada, K., Itioka, T., Sakai, S., Ichie, T. (2010) Seasonality in light-attracted chrysomelid populations in a Bornean rainforest. Insect Conservation and Diversity 3, 266-277.
  34. Tokumoto, U., Matsushita, M., Tamaki, I., Sakai, S. and Nakagawa, M. (2009) How does flowering magnitude affect seed survival in Shorea pilosa (Dipterocarpaceae) at the predispersal stage in Malaysia? Plant Species Biology 24: 104-108.
  35. Fujita, N. Amartuvshin, N., Yamada, Y., Matsui, K., Sakai, S. and Yamamura, N. (2009) Positive and negative effects of livestock grazing on plant diversity of Mongolian nomadic pasturelands along a slope with soil moisture gradient. Grassland Science 55, 126-134.
  36. Sakai, S., Nagamasu, H. (2009) Systematic studies of Bornean Zingiberaceae VI. Three new species of Boesenbergia (Zingiberaceae). Acta Phytotaxonomica et Geobotanica 60: 49-57.
  37. Ishida, C., Kono, M., Sakai, S. (2009) A new pollination system: brood-site pollination by flower bugs in Macaranga (Euphorbiaceae) Annals of Botany 103: 39-44.
  38. Fukuda, D., Tisen, O. B., Momose, K., Sakai, S. (2009) Bat diversity in the vegetation mosaic around a lowland dipterocarp forest. Raffles Bulletin of Zoology 57: 213-221.
  39. Kishimoto-Yamada, K., Itioka, T., Sakai, S., Momose, K., Nagamitsu, T., Kaliang, H., Meleng, P., Chong, J., Hamid, A. A., Yamane, S., Kato, M. Nakashizuka, T. and Inoue, T. (2009) Population fluctuations of light-attracted chrysomelid beetles in relation to supra-annual environmental changes in a Bornean rainforest. Bulletin of Entomological Research 99: 217-227.
  40. Ushimaru, A., Ishida, C., Sakai, S., Shibata, M, Tanaka, H., Niiyama, K., Nakashizuka, T. (2008) The effects of human management on spatial distribution of two bumble bee species in a traditional agro-forestry Satoyama landscape. Journal of Apicultural Research and Bee World 47: 296-303.
  41. Sakai, S., Wright, S. J. (2008) Reproductive ecology of 21 coexisting Psychotria species (Rubiaceae): When is heterostyly lost? Biological Journal of Linnean Society 93: 125-134.
  42. Nakagawa, M., Miguchi, H., Sato, K., Sakai, S. and Nakashizuka, T. (2007) Population dynamics of arboreal and terrestrial small mammals in a tropical rain forest, Sarawak, Malaysia. Raffles Bulletin of Zoology 55: 389-395.
  43. Sakai, S., Harrison, R. D., Momose, K., Kuraji, K., Nagamasu, H., Yasunari, T., Chong, L. and Nakashizuka, T. (2006) Irregular droughts trigger mass flowering in aseasonal tropical forests in Asia. American Journal of Botany 93: 1134-1139.
  44. Sakai, S. and Nagamasu, H. (2006) Notes on inflorescence structure of Boesenbergia (Zingiberaceae). Acta Phytotaxonomica et Geobotanica 57: 107-111.
  45. Sakai, S. and Nagamasu, H. (2006) Systematic studies of Bornean Zingiberaceae V. Zingiberoideae of Lambir Hills, Sarawak. Blumea 51: 95-115.
  46. Sakai, S. and Toquenaga, Y. (2004) Heterostyly: speciation within a species. Population Ecology, 46: 253-262.
  47. Sakai, S. and H. Nagamasu (2003) Systematic studies of Bornean Zingiberaceae IV. Alpinioideae of Lambir Hills, Sarawak. Edinburgh Journal of Botany 60: 181-216.
  48. 25. Sakai, S. and H. Nagamasu (2003) A significant range extension for the monotypic Tamijioideae (Zingiberaceae). Acta Phytotaxonomica et Geobotanica 54: 81-83.
  49. Sakai, S. (2002): A review of brood-site pollination mutualism: plants providing breeding site for their pollinators. Journal of Plant Research 115: 161-168.
  50. Sakai, S. (2002): General flowering in lowland mixed dipterocarp forests of Southeast Asia. Biological Journal of Linnean Society 75: 233-247.
  51. Sakai, S. (2002) Aristolochia spp. (Aristolochiaceae) pollinated by flies breeding on decomposing flowers. American Journal of Botany 89: 527-534.
  52. Disney, H. and S. Sakai (2001) Scuttle flies (Diptera: Phoridae) whose larvae develop in flowers of Aristolochia (Aristolochiaceae) in Panama. Europian Journal of Entomology 98: 367-373.
  53. Sakai, S. (2001) Thrips pollination of androdioecious Castilla elastica (Moraceae) in a seasonal tropical forest. American Journal of Botany 88: 1527-1534.
  54. Sakai, S. (2001) Phenological diversity in tropical forests. Population Ecology 43: 77-86.
  55. Itioka, T., T. Inoue, H. Kaliang, M. Kato, T. Nagamitsu, K. Momose, S. Sakai, T. Yumoto, S. U. Mohamad, A. A. Hamid and S. Yamane (2001) Six-year population fluctuation of the giant honey bee Apis dorsata F. (Hymenoptera: Apidae) in a tropical lowland dipterocarp forest in Sarawak. Annals of Entomoloical Society of America 94: 545-549.
  56. Kato. M., T. Itioka, S. Sakai, K. Momose, S. Yamane, A. A. Hamid and T. Inoue (2000) Various population fluctuation patterns of light-attracted beetles in a tropical lowland dipterocarp forest in Sarawak. Research on Population Ecology 42: 97-104.
  57. Sakai, S., M. Kato and H. Nagamasu (2000) Artocarpus (Moraceae)--gall midge pollination mutualism mediated by a male-flower-parasitic fungus. American Journal of Botany 87: 440-445.
  58. Sakai, S. (2000) Reproductive phenology of gingers in a lowland mixed dipterocarp forest in Borneo. Journal of Tropical Ecology 16: 337-354.
  59. Sakai, S. and H. Nagamasu (2000) Systematic studies of Bornean Zingiberaceae III. Tamijia: a new genus. Edinburgh Journal of Botany 57: 245-255.
  60. Sakai, S. and H. Nagamasu (2000) Systematic studies of Bornean Zingiberaceae II. Elettaria of Sarawak. Edinburgh Journal of Botany 57: 227-243.
  61. Kon, M., S. Sakai and T. Ochi (2000) A new species of the genus Onthophagus (Coleoptera: Scarabaeidae) from Sarawak, Borneo. Entomological Science 3: 367-371.
  62. Sakai, S., K. Momose, T. Yumoto, M. Kato and T. Inoue (1999) Beetle pollination of Shorea parvifolia (section Mutica, Dipterocarpaceae) in a general flowering period in Sarawak, Malaysia. American Journal of Botany 86: 62-69.
  63. Sakai, S., M. Kato and T. Inoue (1999) Three pollination guilds and variation in floral characteristics of Bornean gingers (Zingiberaceae and Costaceae). American Journal of Botany, 86: 646-658.
  64. Sakai, S., K. Momose, T. Yumoto, T. Nagamitsu, H. Nagamasu, A. A. Hamid, T. Nakashizuka and T. Inoue (1999) Plant reproductive phenology over four years including an episode of general flowering in a lowland dipterocarp forest, Sarawak, Malaysia. American Journal of Botany 86: 1414-1436.
  65. Sakai, S. and T. Inoue (1999) A new pollination system: dung-beetle pollination discovered in Orchidantha inouei (Lowiaceae, Zingiberales) in Sarawak, Malaysia. American Journal of Botany 86: 56-61.
  66. Nagamasu, H. and S. Sakai (1999) Orchidantha inouei (Lowiaceae), a new species from Borneo. Nordic Journal of Botany 19:149-152.
  67. Momose, K., R. Ishii, S. Sakai and T. Inoue (1998) Plant reproductive intervals and pollinators in the aseasonal tropics: a new model. Proceedings of the Royal Society of London 265: 2333-2339.
  68. Momose, K., T. Yumoto, T. Nagamitsu, M. Kato, H. Nagamasu, S. Sakai, R. D. Harrison, T. Itioka, A. A. Hamid and T. Inoue (1998) Pollination biology in a lowland dipterocarp forest in Sarawak, Malaysia I: Characteristics of the plant-pollinator community in a lowland dipterocarp forest. American Journal of Botany 85: 1477-1501.
  69. Sakai, S. and H. Nagamasu (1998) Systematic studies of Bornean Zingiberaceae I. Amomum in Lambir Hills, Sarawak. Edinburgh Journal of Botany 55: 45-64.
  70. Nagamasu, H. and S. Sakai (1996) Amomum roseisquamosum (Zingiberaceae), a new epiphytic ginger from Borneo. Edinburgh Journal of Botany 53: 39-42.

Other publications

  1. Sakai, S., R. A. S. Pungga, P. Meleng, T. Itioka (eds.) (2015) Proceedings of the symposium “Frontier in Tropical Forest Research: Progress in Joint Projects between the Forest Department Sarawak and the Japan Research Consortium for Tropical Forests in Sarawak” Forest Department Sarawak and Japan Research Consortium for Tropical Forests in Sarawak.
  2. Sakai, S., T. Itioka. (2015) Long-term monitoring of plant reproductive phenology and observation of general flowering in Lambir Hills, Sarawak. Proceedings of the symposium “Frontier in Tropical Forest Research: Progress in Joint Projects between the Forest Department Sarawak and the Japan Research Consortium for Tropical Forests in Sarawak” Forest Department Sarawak and Japan Research Consortium for Tropical Forests in Sarawak. pp 9-18.
  3. Sakai, S. Umetsu, C. (2014) (ed.) C. Global Environmental Studies: Social-Ecological Systems in Transition. Springer, Tokyo.
  4. Takano, K. T., Nakagawa, M., Itioka, T., Kishimoto-Yamada, K., Yamashita, S., Tanaka, H. O., Fukuda, D., Nagamasu, H., Ichikawa, M., Kato, Y., Momose, K., Nakashiuka, T., Sakai, S. (2014). The Extent of Biodiversity Recovery During Reforestation After Swidden Cultivation and the Impacts of Land-Use Changes on the Biodiversity of a Tropical Rainforest Region in Borneo. In Social-Ecological Systems in Transition (pp. 27-49). Springer Japan.
  5. Sakai, S., Yamamura, N., Ishii, R. (2013) (ed.) Project Report “Collapse and restoration of ecosystem network with human activity”. Research Institute for Humanity and Nature, ISBN 978-4-902325-85-0.
  6. van Jaarsveld, A. S., Takeuchi, K. (meeting co-authors), 8 coordination lead authors, 26 lead authors including Sakai, S. as 21st (alphabetical order) (2012) International Science Workshop on Assessments for IPBES, Workshop report, February 27-29, 2012. United Nations University.
  7. Nakagawa, M., Yoshima, M., Tamaki, M., Kishimoto-Yamada, K., Yamashita, S., Nagamasu, H., Nakashizuka, T., Sakai, S. (2012) Community Structures of Trees and Soil Animals in Fallows and Primary Forests in Sarawak, Malaysia. In: Yamamura, N. (ed.) Project Report “Collapse and restoration of ecosystem network with human activity”. Research Institute for Humanity and Nature, pp. 106-109.
  8. Takano, T. K., Nakagawa, M., Itioka, T., Kishimoto-Yamada, K., Yamashita, S., Tanaka, O. H., Tokumoto, Y., Fukuda, D., Nagamasu, H., Ichikawa, M., Momose, K., Sakai, S., Nakashizuka, T. (2012) The Effects of Different Land Uses on the Biodiversity of Various Taxa in the Tropical Forests of Malaysian Borneo. In: Yamamura, N. (ed.) Project Report “Collapse and restoration of ecosystem network with human activity”. Research Institute for Humanity and Nature, pp. 132-135.
  9. Hon, J., Sakai, S., Koizumi, M., Kishimoto-Yamada, K., Ichikawa, M., Kato, Y., Takano, T. K., Itioka, T., Soda, R., Samejima, H. (2012) Distribution and Trend of animal abundance in the Rajang and Baram regions, Sarawak, based on questionnaire survey. In: Yamamura, N. (ed.) Project Report “Collapse and restoration of ecosystem network with human activity”. Research Institute for Humanity and Nature, pp. 158-165.
  10. Sakai, S., Choy, Y. K., Koizumi, M., Kishimoto-Yamada, K., Ichikawa, M., Kato, Y., Takano, K., Itioka, T., Soda, R., Samejima, H., Nakashizuka, T. (2012) Changes in the Lives of Indigenous People and Their Environments in Sarawak. In: Yamamura, N. (ed.) Project Report “Collapse and restoration of ecosystem network with human activity”. Research Institute for Humanity and Nature, pp. 185-189.
  11. van Jaarsveld, A. S., Takeuchi, K. (meeting co-authors), 12 coordination lead authors, 22 lead authors including Sakai, S. as 22nd (alphabetical order) (2011) International Science Workshop on Assessments for IPBES, Workshop report, July 25-29, 2011. United Nations University.
  12. Sakai, S., Momose, K., Yumoto, T., Nagamitsu, T., Nagamasu, H., Hamid, A. A., Nakashizuka, T. and Inoue, T. (2005) Plant reproductive phenology and general flowering in a mixed dipterocarp forest. In Roubik, D. W., Sakai, S. and Hamid, A. A. (eds.) Pollination ecology and forest canopy: Sarawak studies. Springer, NY. pp. 35-50.
  13. Roubik, D. W., Sakai, S. and Hamid, A. A. (ed.) (2005) Pollination ecology and forest canopy: Sarawak studies. Springer, NY.
  14. Nakashizuka, T., S. Sakai and L. Chong (2003) Lambir Hills National Park Canopy Crane, Malaysia. In Y. Basset, V. Horlyck and S. J. Wright (eds.) studying Forest Canopies from Above: the International Canopy Crane Network. pp. 120-125.
  15. Sakai, S. (2003) Diversity, ecology and evolution of Zingiberaceae and Costaceae of Lambir, Borneo. In P. Chantaranothai, K. Larsen, P. Sirirugsa, and D. Simpson (eds.) Proceedings of the Third Symposium on the Family Zingiberaceae. pp. 43-53.
  16. Roubik, D. W., S. Sakai and F. Gattesco (2003) Canopy flowers and certainty: loose niches revisited. In Y. Basset, V. Novotny, S. E. Miller and R. L. Kitching (eds.) Arthropods of tropical forests: spatio-temporal dynamics and resource use in the canopy. Cambridge University Press, Cambridge. pp. 360-368.
  17. Itioka, T., M. Kato, H. Kaliang, M. B. Merdeck, T, Nagamitsu, S. Sakai, S. U. Mohamad, S. Yamane, A. A. Hamid and T. Inoue (2003) Insect responses to general flowering in Sarawak. In Y. Basset, V. Novotny, S. E. Miller and R. L. Kitching (eds.) Arthropods of tropical forests: spatio-temporal dynamics and resource use in the canopy. Cambridge University Press, Cambridge. pp. 126-135.
  18. Sakai, S., T. Nakashizuka, T. Ichie, M. Nomura and L. Chong (2002) Lambir Hills Canopy Crane, Malaysia. In A. W. Mitchell, K. Secoy and T. Jackson (eds.), Global Canopy Handbook. Global Canopy Programme, Oxford. pp. 77-79.
  19. Sakai, S., H. Nagamasu, K. Ooi, M. Kato and T. Inoue (2001) Pollination guilds and the evolution of floral characters in Bornean Zingiberaceae and Costaceae. In Tropical ecosystems: structure, diversity and human welfare (eds. Ganeshaiah, K. N., Shaanker, R. U. and Bawa, K. S.). Oxford and IBH Publishing Co. Pvt. Ltd. New Delhi. pp. 359-362.
  20. Sakai, S. (2001): A comparison of flowering phenology and pollination asystems in the tropical forests of southeast Asia and the Neotropics. In Tropical ecosystems: structrure diversity and human welfare (eds. Ganeshaiah, K. N., Shaanker, R. U. and Bawa, K. S.) Oxford and IBH Publishing Co. Pvt. Ltd. New Delhi. pp. 342-346.
  21. Momose, K., T. Yumoto T. Nagamitsu, M. Kato, H. Nagamasu, S. Sakai, R. D. Harrison, A. A. Hamid and T. Inoue (1997) Pollination biology in a lowland dipterocarp forest in Sarawak, Malaysia I. Characteristics of the plant-pollinator community in a lowland dipterocarp forest. T. Inoue and A. A. Hamid. (eds.) General flowering of tropical rainforest in Sarawak. Center for Ecological Research, Kyoto University, pp. 142-162.
  22. Sakai, S., K. Momose T. Yumoto,M. Kato and T. Inoue (1997) Beetle pollination of Shorea parvifolia (section Mutica, Dipterocarpaceae) in a general flowering period in Sarawak, Malaysia. T. Inoue and A. A. Hamid. (eds.) General flowering of tropical rainforest in Sarawak. Center for Ecological Research, Kyoto University, pp. 169-179.
  23. Sakai, S., K. Momose, T. Nagamitsu, R. D. Harrison, T. Yumoto, T. Itino, M. Kato, H. Nagamasu, A. A. Hamid and T. Inoue (1997) An outline of plant reprodcutive phenology in one episode of general flowering cycle in 1992-1996 in Sarawak, Malaysia. T. Inoue and A. A. Hamid. (eds.) General flowering of tropical rainforest in Sarawak. Center for Ecological Research, Kyoto University, pp. 112-141.
  24. Sakai, S. (1997) Flora of Zingiberaceae and Costaceae in Lambir Hills National Park, Sarawak. T. Inoue and A. A. Hamid. (eds.) General flowering of tropical rainforest in Sarawak. Center for Ecological Research, Kyoto University, pp. 68-85.
  25. Sakai, S., K. Momose, T. Inoue and A. A. Hamid (1997) Climate data in Lambir Hills National Park and Miri Airport, Sarawak. T. Inoue and A. A. Hamid. (eds.) General flowering of tropical rainforest in Sarawak. Center for Ecological Research, Kyoto University, pp. 1-10.
  26. Momose, K., T. Nagamitsu, S. Sakai, T. Inoue and A. A. Hamid (1994) Climate data in Lambir Hills National Park and Miri Airport, Sarawak. T. Inoue and A. A. Hamid (eds.) Canopy biology program in Sarawak I: long-term study of dipterocarp forests in Sarawak. Center for Ecological Research, Kyoto University, pp. 26-39.