: 研究室学生, *: 責任著者,  : co-first author,  : オープンアクセス

原著論文 Peer-reviewed papers

  1. Aoyagi R, Imai N, Turner BL, Kitayama K (2024) Plant adaptation and phosphorus limitation in tropical forests: a theoretical and empirical assessment. Ecosystems in press
  2. Cooper et al. (Imai N 149th/353) (2024) Consistent patterns of common species across tropical tree communities. Nature 625:728–734
  3. Bouchard et al. (Imai N 43th/103) (2023) Global patterns and environmental drivers of forest functional composition. Global Ecology and Biogeography 33:303-324
  4. Mo et al. (Imai N 99th/232) (2023) Integrated global assessment of the natural forest carbon potential. Nature 624:92–101
  5. Hirano Y, Marui M, Tachikake S, Kato T, Imai N* (2023) Relationship between herbivory and leaf traits in mangroves on Iriomote Island, southern Japan. Journal of Forest Research in press
  6. Ma et al. (Imai N 97th/232) (2023) The global biogeography of tree leaf form and habit. Nature Plants 9:1795–1809
  7. Delavaux et al. (Imai N 93th/226) (2023) Native diversity buffers against severity of non-native tree invasions. Nature 621:773–781
  8. Imai N, Otokawa H, Okamoto A, Yamazaki K, Tamura T, Sakagami T, Ishizaka S, Shimojima H* (2023) Abandonment of cropland and seminatural grassland in a mountainous traditional agricultural landscape in Japan. Sustainability 115:7742
  9. Aoyagi R, Imai N, Samejima H, Kitayama K (2023) Density-dependent reproductive success among sympatric dipterocarps during a major mast fruiting event. Biotropica 55:742-754
  10. Hordijk et al. (Imai N 91th/221) (2023) Evenness mediates the global relationship between forest productivity and richness. Journal of Ecology 111:1308-1326
  11. Takeshige R, Imai N, Aoyagi R, Sawada R, Ong R, Kitayama K (2023) Influences of fern and vine coverage on the above-ground biomass recovery in a Bornean logged-over degraded secondary forest. Journal of Forest Research 28:260–270
  12. Mori T, Imai N, Kitayama K (2023) Does simultaneous phosphorus fertilization negate the suppressive effect of nitrogen fertilization on polyphenol oxidase activity ? Geoderma 430:116287
  13. Liang J et al. (Imai N 112th/249) (2022) Co-limitation towards lower latitudes shapes global forest diversity gradients. Nature Ecology and Evolution 6:1423–1437
  14. Takeshige R, Ohnishi M, Aoyagi R, Sawada Y, Imai N, Ong R, Kitayama K (2022) Mapping the spatial distribution of fern thickets and vine-laden forests in the landscape of Bornean logged-over tropical secondary rainforests. Remote Sensing 14:3354
  15. Hirano Y, Kitayama K, Imai N* (2022) Interspecific differences in the responses of root phosphatase activities and morphology to nitrogen and phosphorus fertilization in Bornean tropical rain forests. Ecology and Evolution 12:e8669
  16. Ioki K, James D, Phua M-H, Tsuyuki S, Imai N (2022) Recovery of tree community composition across different types of anthropogenic disturbances and characterization of their effect using Landsat time series in Bornean tropical montane forest. Biological Conservation 267:109489
  17. Sawada Y, Imai N, Takeshige R, Kitayama K (2021) Relationships between tree-community composition and regeneration potential of Shorea trees in logged-over tropical rain forests. Journal of Forest Research 27:222-229
  18. Nakamura R, Imai N, Aoyagi R, Kitayama K, Kitajima K (2021) Litterfall silicon flux in relation to vegetation differences in old-growth and logged lowland forests in Borneo. Ecological Research 36:892-900
  19. Abe T, Watari Y, Imai N (2021) Ecological management of insular forests: conservation of endangered species and native ecosystems in Ryukyu Archipelago. Journal of Forest Research 26:169-170
  20. Muscarella R et al. (Imai N 94th/223) (2020) The global abundance of tree palms. Global Ecology and Biogeography 29:1495-1514
  21. Imai N, Sugau JB, Pereira JT, Titin J, Kitayama K (2019) Impacts of selective logging on spatial structure of tree species composition in Bornean tropical rain forests. Journal of Forest Research 24:335-340
  22. Steidinger BS et al. (Imai N 99th/222) (2019) Climatic controls of decomposition drive the global biogeography of forest-tree symbioses. Nature 569:404-408 Press release(Stanford University), cover
  23. Kitayama K, Fujiki S, Aoyagi R, Imai N, Sugau JB, Titin J, Nilus R, Lagan P, Sawada Y, Ong R, Kugan F, Mannan S (2018) Biodiversity observation for land and ecosystem health (BOLEH): a robust method to evaluate the management impacts on the bundle of carbon and biodiversity ecosystem services in tropical production forests. Sustainability 10:4224
  24. Aoyagi R, Imai N, Hidaka A, Samejima H, Kitayama K (2018) Abrupt increase in phosphorus and potassium fluxes during a masting event in a Bornean tropical forest. Ecological Research 33:1193-1205
  25. Mori T, Imai N, Yokoyama D, Kitayama K (2018) Effects of nitrogen and phosphorus fertilization on the ratio of activities of carbon-acquiring to nitrogen-acquiring enzymes in a primary lowland tropical rainforest in Borneo, Malaysia. Soil Science and Plant Nutrition 64:554-557
  26. Mori T, Imai N, Kitayama K (2018) A preliminary report: does reduced-impact logging (RIL) mitigate non-CO₂ greenhouse gas emissions from natural production forests? Tropics 27:25-31
  27. Imai N*, Furukawa T, Tsujino R, Kitamura S, Yumoto T (2018) Factors affecting forest area change in Southeast Asia during 1980-2010. PLoS One 13:e0197391 Press release(東京農大森林総研朝日新聞デジタル
  28. Slik JWF et al. (Imai N 71th/185) (2018) A phylogenetic classification of the world’s tropical forests. PNAS 115:1837-1842
  29. Aoyagi R, Imai N, Fujiki S, Sugau JB, Pereira JT, Kitayama K (2017) The mixing ratio of tree functional groups as a new index for biodiversity monitoring in Bornean production forests. Forest Ecology and Management 403:27–43
  30. Mori T, Imai N, Yokoyama D, Mukai M, Kitayama K (2017) Effects of selective logging and application of phosphorus and nitrogen on fluxes of CO₂, CH₄ and N₂O in lowland tropical rainforests of Borneo. Journal of Tropical Forest Science 29:248-256
  31. Yokoyama D, Imai N, Kitayama K (2017) Effects of nitrogen and phosphorus fertilization on the activities of four different classes of fine-root and soil phosphatases in Bornean tropical rain forests. Plant and Soil 416:463–476
  32. Fujiki, S, Aoyagi R, Tanaka A, Imai N, Kusma AD, Kurniawan Y, et al. (2016) Large-scale mapping of tree-community composition as a surrogate of forest degradation in Bornean tropical rain forests. Land 5:45
  33. Aoyagi R, Imai N, Seino T, Kitayama K (2016) Soil nutrients and size-dependent tree dynamics of the tropical lowland forests on volcanic and sedimentary substrates in Sabah, Malaysian Borneo. Tropics 25:43-52
  34. Imai N, Samejima H, Demies M, Tanaka A, Sugau JB, Pereira JT, Kitayama K (2016) Response of tree species diversity to disturbance in humid tropical forests of Borneo. Journal of Vegetation Science 27:739–748
  35. Slik JWF et al. (Imai N 64th/172) (2015) An estimate of the number of tropical tree species. PNAS 112:7472-7477
  36. Imai N, Tanaka A, Samejima H, Sugau JB, Pereira JT, Titin J, Kurniawan Y, Kitayama K (2014) Tree community composition as an indicator in biodiversity monitoring of REDD+. Forest Ecology and Management 313:169–179
  37. Aoyagi R, Imai N, Kitayama K (2013) Ecological significance of the patches dominated by pioneer trees for the regeneration of dipterocarps in a Bornean logged-over secondary forest. Forest Ecology and Management 289:378-384
  38. Imai N, Seino T, Aiba S, Takyu M, Titin J, Kitayama K (2012) Effects of selective logging on tree species diversity and composition of Bornean tropical rain forests at different spatial scales. Plant Ecology 213:1413-1424
  39. Imai N, Kitayama K, Titin J (2012) Effects of logging on phosphorus pools in a tropical rainforest of Borneo. Journal of Tropical Forest Science 24:5-17
  40. Imai N, Kitayama K, Titin J (2010) Distribution of phosphorus in above-to-below-ground profile in a Bornean tropical rain forest. Journal of Tropical Ecology 26:627-636
  41. Imai N, Samejima H, Langner A, Ong RC, Kita S, Titin J, Chung AYC, Lagan P, Lee YF, Kitayama K (2009) Co-benefits of sustainable forest management in biodiversity conservation and carbon sequestration. PLoS One 4:e8267
  42. Imai N, Takyu M, Nakamura Y. (2009) Growth, crown architecture and leaf dynamics of saplings of five mangrove tree species in Ranong, Thailand. Marine Ecology Progress Series 377:139-148
  43. Imai N, Takyu M, Nakamura Y, Nakamura T. (2006) Gap formation and regeneration of tropical mangrove forests in Ranong, Thailand. Plant Ecology 186:37-46

翻訳書 Book in translation

  1. 今井 伸夫, 古川 恵太, 中嶋 亮太, 檜谷 昴 (2021) マングローブ林の生態系生態学. 東京農大出版会, p296,(Alongi D (2009) The Energetics of Mangrove Forests. Springerを邦訳)

著書 (分担執筆) Book chapter

  1. Imai N, Titin J, Kita S, Ong R, Kitayama K (2013) Co-benefits of sustainable forest management for carbon sequestration. In: (ed) Kitayama K. Co-benefits of Sustainable Forestry: Ecological Studies of a Certified Bornean Tropical Rain Forest, Ecological Research Monographs, Springer, pp 129-148
  2. Imai N, Seino T, Aiba SI, Takyu M, Titin J, Kitayama K (2013) Management effects on tree species diversity and dipterocarp regeneration. In: same as above, pp 41-61
  3. Ong RC, Langner A, Imai N, Kitayama K (2013) Management history of the study sites: the Deramakot and Tangkulap Forest Reserves. In: same as above, pp 1-21

和雑誌 Papers in Japanese

  1. Yamamoto M, Tachikake S, Imai N, Kojima H (2021) Additional record of Parendymia pilipes Kirsch (Coleoptera, Curculionidae), a potential pest of mangroves from Iriomote-jima Island, the Ryukyus, Japan. Elytra New Series 11:379-384
  2. 今井伸夫 (2017) 菌根菌への炭素配分に関する研究. アグリバイオ 1:1087-1091
  3. 北山兼弘, 今井伸夫, 鮫島弘光 (2011) 脅かされる熱帯林の生物多様性-その現状と保全へのアプローチ. 森林科学 63:13-17
  4. Imai N, Otaki K, Takyu M, Nakamura Y (2005) Crown architecture, leaf morphology and leaf longevity of saplings of Rhizophora apiculata Blume growing under contrasting light conditions in tropical mangrove forests in Ranong, Thailand. 生態環境研究 12:31-39
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