JDR Vol.3 No.3 pp. 174-186
doi: 10.20965/jdr.2008.p0174


Threats to Indigenous Biota from Introduced Species on the Bonin Islands, Southern Japan

Kazuto Kawakami

Forestry and Forest Products Research Institute
Matsunosato 1, Tsukuba, Ibaraki 305-8687, Japan

December 6, 2007
January 8, 2008
June 1, 2008
black rat, endemism, eradication, introduced species, the bonin islands
High endemism has evolved on the Bonin Islands, a group of oceanic islands in the northwestern Pacific, due to a disharmonic, unique biota. However, human settlements have caused extensive deforestation and the introduction of invasive species over the last 200 years. Insular populations are vulnerable to the devastating effects of introduced predators, competitors, and diseases, because they have evolved in the absence of such factors. Introduced species (e.g., goats, cats, black rats, green anole lizards, invasive plants, and predatory flatworms) have caused population declines and the extinction of indigenous species through direct and indirect effects. Unpredictable events often occur within these food webs. Clearly, efforts must be made to control these introduced populations, and to that end, attempts to eliminate certain species (e.g., goats and rats) have begun. However, some invasive species cannot be completely eradicated from their ranges because of their wide distributions and high population densities. In such cases, these species must be confined to their current ranges, which, for the primary invasive species, is mainly limited to two inhabited islands. Problematically, some introduced species have become essential components of the current ecosystem due to long-term naturalization, and their elimination may cause decreases in native species. Thus, the construction of sustainable ecosystems that include both native and introduced species is a realistic goal of current conservation efforts.
Cite this article as:
K. Kawakami, “Threats to Indigenous Biota from Introduced Species on the Bonin Islands, Southern Japan,” J. Disaster Res., Vol.3 No.3, pp. 174-186, 2008.
Data files:
  1. [1] T. Kuroda, et al., “Geology of the Bonin Islands,” Report on the assessment of the nature of Ogasawara (2), TokyoMetropolitan Univ., pp. 111-131, 1981 (in Japanese).
  2. [2] Japan Meteorological Agency, “The climatic data of Japan,” Japan Meteorological Business Support Center, 2001 (in Japanese).
  3. [3] S. Carlquist, “Island biology,” Columbia Univ. Press, 1974.
  4. [4] J. R. Whittaker, “Island biogeography,” Oxford Univ. Press, 1998.
  5. [5] A. R. Wallace, “Island life (3rd edn),” Macmillan, 1902.
  6. [6] N. Kuroda, “The geographical distribution of mammals in the Bonin Islands,” Bull. Biogeographical Soc. Jpn, 1, pp. 81-88, 1930 (in Japanese).
  7. [7] T. Momiyama, “On the birds of Bonin and Iwo Islands,” Bull. Biogeographical Soc. Jpn, 1, pp. 89-186, 1930 (in Japanese).
  8. [8] M. Nakamura, “Earthworms (Annelidae: Oligochaeta) of Ogasawara Archipelagoes,” Bull. Chuo Univ., 15, pp. 21-32, 1994.
  9. [9] S. Kobayashi and M. Ono, “The Revised List of Vascular Plants Indigenous and Introduced to the Bonin (Ogasawara) and the Volcano (Kazan) Islands,” Ogasawara Research, 13, pp. 1-55, 1987.
  10. [10] Y. Shimizu, “The nature of Ogasawara and its conservation,” Global Environ. Res., 7, pp. 3-14, 2003.
  11. [11] T. Ohbayashi, et al., “List of insects in the Ogasawara Islands, Japan (2002),” Ogasawara Research, 29, pp. 17-74, 2004 (in Japanese).
  12. [12] T. Toyoda, “Flora of Bonin Is.,” Aboc-sha, 1981 (in Japanese).
  13. [13] “Check-list of Japanese birds Sixth revised edition,” Ornithol. Soc. Jpn, 2000.
  14. [14] T. Kurozumi, “Species composition and abundance of land mollusks and factors affecting their extinction in the Ogasawara Islands,” Ogasawara Res., 15, pp. 59-109, 1988 (in Japanese).
  15. [15] J. W. Fitzpatrick, “Bird Conservation,” Handbook of Bird Biology, Princeton Univ. Press, pp. 104-116, 2004.
  16. [16] Ministry of the Environment, “Threatened wildlife of Japan, Red Data Book 2nd ed. Vol.2. Aves,” JWRC, 2002 (in Japanese).
  17. [17] S. Oda, “The Archaeological history of the Bonin Islands,” Annual Rep. Curators of Tokyo, 14, pp. 1-82, 1998 (in Japanese).
  18. [18] S. L. Olson and H. F. James, “Fossil birds from the Hawaiian Islands: Evidence for wholesale extinction by man before western contact,” Science, 217, pp. 633-635, 1982.
  19. [19] D. W. Steadman, “Prehistoric extinctions of pacific island birds: biodiversity meets zooarchaeology,” Science, 267, pp. 1123-1131, 1995.
  20. [20] S. Pimm, et al., “Human impacts on the rates of recent, present, and future bird extinctions,” Proc. National Academy of Sciences, 103, pp. 10941-10946, 2006.
  21. [21] T. Tsuji, “The History of the Bonin Islands I,” Kindaibungeisha, 1995 (in Japanese).
  22. [22] Y. Kurata, “Album of Ogasawara-Form Discovery to Prewar Era,” Aboc-sha, 1983 (in Japanese).
  23. [23] M. Funakoshi, “History of development and destruction,” The Nature of Ogasawara, Kokon-Shoin, pp. 38-45, 1992 (in Japanese).
  24. [24] W. L. N. Tickell, “Albatrosses,” Yale Univ. Press, 2000.
  25. [25] Y. Higuchi, “List of Birds in Ogasawara Islands, including Iwo Islands and Minamitorishima,” Strix, 3, pp. 73-87, 1984 (in Japanese).
  26. [26] W. A. Bryan, “A monograph of Marcus Island,” Occ. Pap. B. P. Bishop Mus., 1, pp. 77-126, 1903.
  27. [27] N. Kuroda, “Report on the trip to Marcus Island with notes on the birds,” Pac. Sci., 8, pp. 84-93, 1954.
  28. [28] H. Chiba, et al., “The distribution of seabirds in the Bonin Islands, southern Japan,” J. Yamashina Inst. for Ornithol., 38, pp. 1-18, 2007.
  29. [29] T. Tsuji, “The History of the Bonin Islands II,” Kindaibungeisha, 1995 (in Japanese).
  30. [30] K. Okutomi and T. Iseki, “ Vegetation of Minami-torishima (Marcus) Island,” the Vegetation Studies Soc. of Tokyo, 2004 (in Japanese).
  31. [31] K. Yoshida and S. Oka, “Impact of biological invasion of Leucaena leucocephala on successional pathway and species diversity of secondary forest on Hahajima Island, Ogasawara (Bonin) Islands, northwestern Pacific,” Jpn J. Ecol. 50, pp. 111-119, 2000 (in Japanese).
  32. [32] M. Hasegawa, et al., “Range expansion of Anolis c. carolinensis on Chichi-Jima the Bonin Islands,” Jpn J. Herpetol., Vol.12, pp. 115-118, 1988.
  33. [33] “Shimadas,” National Institute for Japanese Islands, 2004 (in Japanese).
  34. [34] T. Tsuyama and S. Asami, “The nature in the Bonin Islands” Hirokawa-shoten, 1970 (in Japanese).
  35. [35] “Report on the urgent research about damage of feral goats on plants and animals in the Ogasawara Islands,” JWRC, 1992 (in Japanese).
  36. [36] K. Tokida and S. An, “Problems on the feral goats in the Bonin Islands” Iden, 54, pp. 81-85, 2000 (in Japanese).
  37. [37] K. Tokida, “Damage caused by feral goats and what to do about it,” Animals and Zoos, 53, pp. 124-127, 2001 (in Japanese).
  38. [38] “Galapagos in the Orient: the Attraction and Crisis of the Endemic Species,” Kanagawa Prefect. Mus. of Nat. Hist., 2004 (in Japanese).
  39. [39] “Report on the Impacts of a Feral Goat Outbreak on the Nature in the Bonin Islands,” JWRC, 2006 (in Japanese).
  40. [40] K. Campbell and C. J. Donlan, “Feral goat eradications on islands,” Conserv. Biol. 19, pp. 1362-1374, 2005.
  41. [41] Y. Shimizu, “Natural history of the Ogasawara Islands,” Forest Sci., 25, pp. 42-45, 1999 (in Japanese).
  42. [42] Y. Shimizu, “Vegetation of Mukojima Island Group in the Bonin (Ogasawara) Islands with reference to the ecology of Ardisia dominant forest and the influence of feral goats,” Komazawa Geography, 29, pp. 9-58, 1993 (in Japanese).
  43. [43] K. Hata, et al., “Effects of an alien shrub species, Leucaena leucocephala, on establishment of native mid-successional tree species after distubance in the national park in the Chichijima island, a subtropical oceanic island,” Tropics 16, pp. 283-290, 2007.
  44. [44] D. A. Croll, et al., “Introduced predators transform subarctic islands from grassland to tundra,” Science 307, pp. 1959-1961, 2005.
  45. [45] T. Fukami, et al., “Above- and below-ground impacts of introduced predators in seabird-dominated island ecosystems,” Ecol. Letters, 9, pp. 1299-1377, 2006.
  46. [46] “Report on the confirmation of feral goat eradication in the Ogasawara Islands” JWRC, 2007 (in Japanese).
  47. [47] K. Tokida, “A report on the public symposium at IMC9-part 4: The feral goat eradication program on the Ogasawara Islands,”Mammal. Sci., 46, pp. 93-94, 2006 (in Japanese).
  48. [48] G. Jones, “States Japan Expedition by Com. M. C. Perry Vol.1,” A. O. P. Nicholson, 1856.
  49. [49] Ecological Society of Japan, “Handbook of Alien Species in Japan,” Chijin Shokan, 2002 (in Japanese).
  50. [50] K. Kawakami and H. Higuchi, “Predation by domestic cats on birds of Hahajima Island of the Bonin Islands, southern Japan,” Ornithol. Sci., 1, pp. 143-144, 2002.
  51. [51] K. Kawakami and M. Fujita, “Feral cat predation on seabirds on Hahajima, the Bonin Islands, Southern Japan,” Ornithol. Sci., 3, pp. 155-158, 2004.
  52. [52] K. Horikoshi, “Bird conservation and feral cat problems,” Iden, 61, pp. 68-71, 2007 (in Japanese).
  53. [53] K. Kawakami, “Bird deaths in the Bonin Islands,” Animals and Zoos, 52, pp. 12-16, 2000 (in Japanese).
  54. [54] R. C. Conant “A field guide to reptiles and amphibians of eastern and central North America,” Houghton Mifflin Co., Boston, 1985.
  55. [55] H. Nakamura, “Ecological Adaptations of the Oriental Greenfinch Carduelis sinica on the Ogasawara Islands,” Jpn. J. Ornithol, 46, pp. 95-110, 1997.
  56. [56] “Report on designation of national wildlife refuge, 2004 (the Volcano Islands),” Yamashina Insti. Onithol., 2005 (in Japanese).
  57. [57] F. H. von Kittlitz, “Ueber die Vogel der Inselgruppe von Boninsima. Beobachtet zu Anfang May 1828,” Mem. Acad. Imp. Sci. St. Petersbourg, 1, pp. 231-248, 1831.
  58. [58] J. C. Greenway, “Extinct and Vanishing Birds of the World,” Dover Pub., 1967.
  59. [59] “Report on the conservation of endangered Japanese Wood-Pigeon Columba janthina nitens,” Tokyo Regional Forest Office, 2003 (in Japanese).
  60. [60] K. Kawakami, “Diet of the feral cat Felis cattus in Hahajima, the Bonin Islands, Japan,” Ogasawara Kenkyu Nenpo, 31, pp. 41-48, 2008 (in Japanese).
  61. [61] “Report of the Second General Survey of Natural Environment of the Ogasawara (Bonin) Islands 2,” Tokyo Metropolitan Univ., 1991 (in Japanese).
  62. [62] A. Suzuki and M. Nagoshi, “Habitat utilization of the native lizard, Cryptoblepharus boutoni nigropunctatus, in areas with and without the introduced lizard, Anolis carolinensis, on Hahajima, the Ogasawara Islands, Japan,” Tropical Islands, Herpetofauna: Origin, Current Diversity, and Conservation, Elsevier Science, pp. 155-168, 1999.
  63. [63] I. Okochi, et al., “High population densities of an exotic lizard, Anolis carolinensis and its possible role as a pollinator in the Ogasawara Islands,” Bull. FFPRI, 5, pp. 265-269, 2006.
  64. [64] H. Karube, “On a critical situation of the endemic dragonflies from the Ogasawara Islands,” Gekkan-mushi, 369, pp. 22-32, 2001 (in Japanese).
  65. [65] H. Makihara, et al., “An evaluation of predation impact of the introduced lizard Anolis carolinensis on the endemic insect fauna of the Ogasawara Islands based on insect collection records and feeding experiments, with special reference to longicorn beetles (Insecta: Coleoptera: Cerambycidae),” Bull. FFPRI, 3, pp. 165-183, 2004 (in Japanese).
  66. [66] M. Yoshimura and I. Okochi, “A decrease in endemic odonates in the Ogasawara Islands, Japan,” Bull. FFPRI, 4, pp. 45-51, 2005.
  67. [67] “Changing insect fauna in Ogasawara,” Res. Rep. Kanagawa Prefect. Mus. of Nat. Hist., 12, 2004 (in Japanese).
  68. [68] T. Ohbayashi, “Anoris carolinensis preying on Meimuna boninensis,” Cicada, 16, pp. 1, 2001 (in Japanese).
  69. [69] M. Kato, et al., “Impact of introduced honeybees, Apis mellifera, upon native bee communities in the Bonin (Ogasawara) Islands,” Res. Popul. Ecol., 41, pp. 217-228, 1999.
  70. [70] H. Chiba, “First breeding record of the Bull-headed shrike from the Ogasawara Islands,” Jpn J. Ornithol. 38, pp. 150-151, 1990 (in Japanese).
  71. [71] Wild Bird Society of Japan, “Survey on the protected birds,” Ministry of the Environment, 1975 (in Japanese).
  72. [72] “Plans on conservation and restoration of nature in the Bonin Islands,” Ministry of the Environment, 2007 (in Japanese).
  73. [73] S. Lowe, et al. “100 of the World’sWorst Invasive Alien Species: A selection from the Global Invasive Species Database,” ISSG, SSC, IUCN, 2000.
  74. [74] K. Miyashita, “Introduced species in the Bonin Islands,” Ogasawara Kenkyu Nenpo, 4, pp. 47-54, 1980 (in Japanese).
  75. [75] M. Kawakatsu, et al., “A preliminary report on land planarians and land nemertine from the Ogasawara Islands,” Occ. Publ. Biol. Lab. of Fuji Woman’s College 32, pp. 1-8. 1999.
  76. [76] S. Chiba, “Species diversity and conservation of Mandarina, an endemic land snail of the Ogasawara Islands,” Global Environ. Res., 7, pp. 29-37, 2003.
  77. [77] T. Ohbayashi, et al., “Food habit of Platydemus manokwari De Beauchamp, 1962 (Tricladida: Terricola: Rhynchodemidae), known as a predatory flatworm of land snails in the Ogasawara (Bonin) Islands, Japan,” Applied Entomol. and Zool., 40, pp. 609-614, 2005.
  78. [78] S. Sugiura and I. Okochi, “High predation pressure by an introduced flatworm on land snails on the oceanic Ogasawara Islands,” Biotropica, 38, pp. 700-703, 2006.
  79. [79] D. R. Hopper and B. D. Smith, “Status of tree snail (Gastropoda: Partulidae) on Guam, with a resurvey of sites studied by H. E. Crampton in 1920,” Pac. Sci., 46, pp. 77-85. 1992.
  80. [80] L. G. Eldredge and B. D. Smith, “Triclad flatworm tours the Pacific,” Aliens 2, pp. 11, 1995.
  81. [81] T. Ohbayashi, et al., “Rapid decline of endemic snails in the Ogasawara Islands, Western Pacific Ocean, “Applied Entomol. and Zool., 42, pp. 479-485, 2007.
  82. [82] I. Okochi, et al., “The cause of mollusk decline on the Ogasawara Islands,” Biodiversity and Conserv., 13, pp. 1465-1475, 2004.
  83. [83] T. Tanimoto and T. Toyoda, “ Survivorship and growth of Akagi (Bischofia javanica BI) seedlings under the forest canopy and different temperature conditions,” Bull. FFPRI, 370, pp. 1-19, 1996 (in Japanese).
  84. [84] N. Yamashita, et al., “Acclimation to sudden increase in light favoring an invasive over native trees in subtropical islands, Japan,” Oecologia, 125, pp. 412-419, 2000.
  85. [85] N. Yamashita, et al., “Seed and seedling demography of invasive and native trees of subtropical Pacific islands,” J. Vegetation Science, 14, pp. 15-24, 2003.
  86. [86] Y. Shimizu, “A vegetation change during a 20-year period following two continuous disturbances (mass-dieback of pine trees and typhoon damage) in the Pinus-Schima secondary forest on Chichijima in the Ogasawara (Bonin) Islands: which won, advanced saplings of new seedlings?,” Ecol. Res., 20, pp. 708-725, 2005.
  87. [87] Y. Tsukamoto, “Avifauna of Minami-Iwojima Island,” The Nature of Minami-Iwojima Island, JWRC, pp. 249-285, 1983 (in Japanese).
  88. [88] N. Tani, et al., “Development of SCAR markers distinguishing pure seedlings of the endangered species Morus boninensis from M. boninensisM. acidosa hybrids for conservation in Bonin (Ogasawara) Islands,” Conserv. Genetics, 4, pp. 605-612, 2004.
  89. [89] K. Satake, et al., “First record of the parthenogenetic snail Melanoides tuberculata (Gastropoda: Thiaridae) from Chichijima Island, Ogasawara Islands,” Chiribotan, 37, pp. 112-117, 2006 (in Japanese).
  90. [90] H. Madsen and F. Frandsen, “The spread of freshwater snails including those of medical and veterinary importance,” Acta Tropica, 46, pp. 139-146, 1989.
  91. [91] B. Facon, et al., “A molecular phylogeography approach to biological invasions of the New World by parthenogenetic Thiarid snails,” Molecular Ecol., 12, pp. 3027-3039, 2003.
  92. [92] S. Obana, “Ogasawarajima-Yoroku I,” 1877 (in Japanese).
  93. [93] T. Yabe and T. Matsumoto, “A survey on the Murine Rodents on Chichijima and Hahajima, the Ogasawara Islands,” J. of Mammal. Soc. Jpn, 9, pp. 14-19, 1982.
  94. [94] T. Tateishi and Y. Takada, “Distribution, morphological characteristics and reproduction of feral house mice (Mus musculus) on Chichijima, Ogasawara Islands,” Mammal. Sci., 34, pp. 1-16, 1994 (in Japanese).
  95. [95] I. A. E. Atkinson, “The spread of commensal species of Rattus to oceanic islands and their effects on island avifaunas,” Conservation of island birds, ICBP, pp. 35-81, 1985.
  96. [96] R. Seitre and J. Seitre, “Causes of land-bird extinctions in French Polynesia,” Oryx 26, pp. 215-222, 1992.
  97. [97] F. Courchamp, et al., “Mammal invaders on islands: impact, control and control impact,” Biol. Rev., 78, pp. 347-383, 2003.
  98. [98] E. Hori, et al., “A survey of Angiotrongylus cantonensis in the Hahajima, Ogasawara Islands,” Jpn J. Parasitol., 23, pp. 138-142, 1974 (in Japanese).
  99. [99] T. Yabe, “Angiotrongylus cantonensis of rats,” The nature and animals, 9-9, pp. 7-11, 1979 (in Japanese).
  100. [100] T. Abe, “Predator or disperser? A test of indigenous fruit preference of alien rats (Rattus rattus) on Nishi-jima (Ogasawara Isalnds),” Pacific Conserv. Biol., 13, pp. 213-218, 2007.
  101. [101] K. Watanabe, et al., “Native plants disrupted by alien rat, Rattus rattus, on the Ogasawara Islands,” Ogasawara Kenkyu Nenpo, 26, pp. 13-31, 2003 (in Japanese).
  102. [102] Ministry of the Environment, “Threatened wildlife of Japan — Red Data Book 2nd ed. Vol.8. Vascular plants,” JWRC, 2000 (in Japanese).
  103. [103] K. Kawakami, “Seed dispersal of Melastoma tetramerum in Chichijima Island of the Bonin Islands, Southern Japan,” Strix 24: pp. 159-164, 2006 (in Japanese).
  104. [104] F. Nobushima, “Herbivory of native plants on Hahajima Island by rats,” Ogasawara Kenkyu Nenpo, 26, pp. 33-37, 2003 (in Japanese).
  105. [105] H. Takano, “ Current status and conservation of Columba janthina nitens,” Iden, 56-1, pp. 92-96, 2002 (in Japanese).
  106. [106] E. Kitahara and H. Sato, “Bark-stripping of Leucaena leucocephala by the black rat, Rattus rattus, on the Bonin Islands,” Forest Pests, 49, pp. 125-127, 2000 (in Japanese).
  107. [107] S. B. Vander Wall, “Food hoarding in animals,” Univ. Chicago Press, 1990.
  108. [108] M. Inaba, et al., “An urgent appeal for conservation of the Bonin flying fox, Pteropus pselaphon Layard, an endangered species,” Jpn J. Conserv. Ecol., 7, pp. 51-61, 2002 (in Japanese).
  109. [109] K. R. McConkey and D. R. Drake, “Extinct pigeons and declining bat populations: are large seeds still being dispersed in the tropical Pacific,” Frugivory and seed dispersal: evolutionary and conservation perspectives, CAB International, pp. 381-395, 2002.
  110. [110] K. R. McConkey and D. R. Drake, “Flying foxes cease to function as seed dispersers long before they become rare,” Ecology, 87, pp. 271-276, 2006
  111. [111] K. Horikoshi, et al., “Impacts of invasive mammals on seabirds in the Bonin Islands,” Proc. 54st annual meeting of Ecol. Soc. Jpn, 2007 (in Japanese).
  112. [112] Institute of Boninology, “Report on biota of Kitaiwojima,” Ogasawara Branch of Tokyo Metropolitan, 2001 (in Japanese).
  113. [113] C. P. H. Mulder and S. N. Keall, “Burrowing seabirds and reptiles: impacts on seeds, seedlings and soils in an island forest in New Zealand,” Oecologia, 127, pp. 350-360, 2001.
  114. [114] S. Chiba, “Morphological and ecological shifts in a land snail caused by the impact of an introduced predator,” Ecol. Res. 22, pp. 884-891, 2007.
  115. [115] E. Hori, et al., “A survey of Angiotrongylus cantonensis in the Chichi-jima, Ogasawara Islands,” Jpn J. Parasitol., 22, pp. 347-353, 1973 (in Japanese).
  116. [116] T. Kanazawa, et al., “An Epidemiological Survey of Angiostrongylus Cantonensis in Chichijima, Ogasawara Islands,” Chiba Medical J., 60, pp. 377-381, 1984 (in Japanese).
  117. [117] K. Yoshimura, “Angiotrongylus cantonensis”, Infectious Deseases Weekly Rep. Jpn, 6-25, pp. 16-18, 2004 (in Japanese).
  118. [118] H. Hattori, et al., “Eosinophilic meningitis caused by Angiotrongylus cantonensis infection in Okinawa,” J. Jpn Pediatric Soc., 105, pp. 719-721 (in Japanese).
  119. [119] R. E. Warner, “The role of introduced diseases in the extinction of the endemic Hawaiian avifauna,” Condor, 70, pp. 101-20. 1968.
  120. [120] C. S. Van Riper III, “The impact of introduced vectors and avian malaria on insular passeriform bird populations in Hawaii,” Bull. the Soc. of Vector Ecologists, 16, pp. 59-83, 1991.
  121. [121] Y. Kato and T. Suzuki, “Introduced animals in the diet of the Ogasawara buzzard, an endemic insular raptor in the Pacific Ocean,” J. Raptor Res. 39, pp. 173-179, 2005.
  122. [122] J. C. Russell, et al., “Intercepting the first rat ashore,” Nature, 437, pp. 1107, 2005.
  123. [123] M. Hasegawa, “Discovery of a new Olenecamptus (Coleoptera, Cerambycidae) from the Ogasawara Islands, Japan, Elytra, 32, pp. 225-228, 2004.
  124. [124] K. Satake and Y. Cai, “Paratya boninensis, a new species of freshwater shrimp (Crustacea: Decapoda: Atyidae) from Ogasawara, Japan,” Proc. Biol. Soc. Washington, 118, pp. 306-311, 2005 (in Japanese).
  125. [125] T. Niisato and H. Karube, “A new Chlorophorus (Coleoptera, Cerambycidae) fromMuko-jima Island of the Ogasawara Islands,” Elytra, 34, pp. 221-222, 2006.
  126. [126] S. Kasahara, “Three new Carabid beetles from Ogasawara Islands,” Elytra, 19, pp. 243-250, 1991.
  127. [127] G. Ito, “Ogasawaracris gloriosus, a new genus and species of possibly extinct grasshopper (Orthoptera: Acrididae) from the Ogasawara Islands,” Entomol. Sci., 6, pp. 85, 2003.

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