Reconstruction of the Ecosystem in the Bonin Islands

  • Kazuto Kawakami


The eradication of invasive species is one way to maintain biodiversity on oceanic islands. In the Bonin Islands, eradication programs for goats, pigs, rats, Bischofia javanica, and so on, are either ongoing or complete on several islands. However, the islands are still suffering from the impacts of increasing numbers of invasive species, such as green anoles ( Anolis carolinensis ) and flatworms ( Platydemus manokwari ), which are hard to eradicate completely because of their high density and small body size. Control measures to prevent range expansion have been developed for these species. Techniques to conserve threatened populations, such as through artificial habitats and captive breeding, have also been implemented. Because the number of species introduced to the islands is increasing, an adequate daily monitoring system is required to detect them. Although controlling introduced species is expected to restore the native ecosystem, countermeasures do not always produce the desired outcomes. For example, the eradication of feral goats caused subsequent increases in invasive plants that had been released from heavy grazing pressure. Pre- and post-eradication monitoring is required to ensure the success of eradication programs. A better understanding of interspecific relationships is the only solution to such a problem. When some species in a native ecosystem have gone extinct, their ecosystem function may be filled by long-established introduced species, whose subsequent removal could cause ecosystem collapse. The construction of a sustainable, stable ecosystem including both native and introduced species is the realistic goal of conservation in the Bonin Islands.


Invasive Species Eradication Program Captive Breeding Bonin Island American Bullfrog 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. Bergstrom DM, Lucieer A, Kiefer K, Wasley J, Belbin L, Pedersen TK, Chown SL (2009) Indirect effects of invasive species removal devastate World Heritage Island. J Appl Ecol 46:73–81CrossRefGoogle Scholar
  2. Campbell KJ, Donlan CJ (2005) A review of feral goat eradication on islands. Conserv Biol 19:1362–1374CrossRefGoogle Scholar
  3. Caut S, Angulo E, Courchamp F (2009) Avoiding surprise effects on Surprise Island: alien species control in a multitrophic level perspective. Biol Invasions 11:1689–1703CrossRefGoogle Scholar
  4. Chiba H (1990) First breeding record of the Bull-headed shrike from the Ogasawara Islands. Jpn J Ornithol 38:150–151 (in Japanese)CrossRefGoogle Scholar
  5. Courchamp F, Langlais M, Sugihara G (1999) Cats protecting birds: modelling the mesopredator release effect. J Anim Ecol 68:282–292CrossRefGoogle Scholar
  6. Courchamp F, Chapuis JL, Pascal M (2003) Mammal invaders on islands: impact, control and control impact. Biol Rev 78:347–383PubMedCrossRefGoogle Scholar
  7. Cronk QCB, Fuller JL (2001) Plant invaders: the threat to natural ecosystems. Earthscan Publications, LondonGoogle Scholar
  8. Hata K, Kachi N (2009) Invasion of an alien woody species, Leucaena leucocephala, on the Ogasawara Islands after feral goat eradication. Global Env Res 14:65–72 (in Japanese)Google Scholar
  9. Horikoshi K, Nakayama R, Hayama S, Miyagawa N, Nakanishi S (2008) Cooperative control attempts of feral cats for nature conservation in the Ogasawara Islands, Japan. International symposium on control strategy of invasive alien mammals 2008 Abstract Book:98Google Scholar
  10. Howald G, Donlan CJ, Galván JP, Russell JC, Parkes J, Samaniego A, Wang Y, Veitch CR, Genovesi P, Pascal M, Saunders A, Tershy B (2007) Invasive rodent eradication on islands. Conserv Biol 21:1258–1268PubMedCrossRefGoogle Scholar
  11. Kato Y, Suzuki T (2005) Introduced animals in the diet of the Ogasawara buzzard, an endemic insular raptor in the Pacific Ocean. J Raptor Res 39:173–179Google Scholar
  12. Kato M, Shibata A, Yasui T, Nagamasu H (1999) Impact of introduced honeybees, Apis mellifera, upon native bee communities in the Bonin (Ogasawara) Islands. Res Popul Ecol 41:217–228CrossRefGoogle Scholar
  13. Kato H, Hata K, Yamamoto H, Yoshioka T (2006) Effectiveness of the weed risk assessment system for the Bonin Islands. In: Koike F, Clout MN, Kawamichi M, De Poorter M, Iwatsuki K (eds) Proceedings of assessment and control of biological invasion risks. Shoukadoh, Kyoto, pp 65–72Google Scholar
  14. Kawakami K (2006) Seed dispersal of Melastoma tetramerum in Chichijima Island of the Bonin Islands, Southern Japan. Strix 24:159–164 (in Japanese with English abstract)Google Scholar
  15. Kawakami K (2009) Seed dispersal by the blue rockthrush Monticola solitarius in the Ogasawara Islands, Japan. Global Env Res 14:57– 64 (in Japanese)Google Scholar
  16. Kawakami K, Mizusawa L, Higuchi H (2009) Re-established mutualism in a seed-dispersal system consisting of native and introduced birds and plants on the Bonin Islands, Japan. Ecol Res 24:741–748CrossRefGoogle Scholar
  17. Lowe S, Browne M, Boudjelas S, De Poorter M (2000) 100 of the World's Worst Invasive Alien Species A selection from the Global Invasive Species Database. ISSG, SSC, IUCN, AucklandGoogle Scholar
  18. Mulder CPH, Grant-Hoffman MN, Towns DR, Bellingham PJ, Wardle DA, Durrett MS, Fukami T, Bonner KI (2009) Direct and indirect effects of rats: does rat eradication restore ecosystem functioning of New Zealand seabird islands? Biol Invasions 11:1671–1688CrossRefGoogle Scholar
  19. Myers JH, Simberloff D, Kuris AM, Carey JR (2000) Eradication revisited: dealing with exotic species. Trends Ecol Evol 15:316–320PubMedCrossRefGoogle Scholar
  20. Nogales M, Martin A, Tershy BR, Donlan J, Veitch D, Puerta N, Wood B, Alonso J (2004) A review of feral cat eradication on islands. Conserv Biol 18:310–319CrossRefGoogle Scholar
  21. Ohbayashi T (2002) Introduced insects in the Bonin Islands. In: Ecological Society of Japan (ed) Handbook of alien species in Japan. Chijin-shokan, Tokyo, pp 239–240 (in Japanese)Google Scholar
  22. Rayner MJ, Hauber ME, Imber MJ, Stamp RK, Clout MN (2007) Spatial heterogeneity of mesopredator release within an oceanic island system. Proc Natl Acad Sci U S A 104:20862–20865PubMedCrossRefGoogle Scholar
  23. Sasaki T, Satake K, Tsuchiya K (2009) Distributions of an alien snail, Melanoides tuberculata and an endemic snail, Stenomelania boninensis, in the Ogasawara (Bonin) Islands, with special reference to the effects of stream bank construction on the thiarid snails. Jpn J Limnol 70:31–38 (in Japanese with English abstract)CrossRefGoogle Scholar
  24. Satake K, Sasaki T, Tsuchiya K (2006) First record of the parthenoge-netic snail Melanoides tuberculata (Gastropoda: Thiaridae) from Chichijima Island, Ogasawara Islands. Chiribotan 37:112–117 (in Japanese with English abstract)Google Scholar
  25. Simberloff D (2001) Eradication of island invasives: practical actions and results achieved. Trends Ecol Evol 16:273–274CrossRefGoogle Scholar
  26. Suzuki T (1991) On the feeding items of the Bull-headed Shrike observed in Chichijima of the Bonin Islands. In: Tokyo Metropolitan University (ed) Report of the second general survey of natural environment of the Ogasawara (Bonin) Islands 2. Tokyo Metropolitan University, Tokyo, pp 173–176 (in Japanese)Google Scholar
  27. Whittaker RJ (1998) Island biogeography. Oxford University Press, OxfordGoogle Scholar
  28. Zavaleta ES, Hobbs RJ, Mooney HA (2001) Viewing invasive species removal in a whole-ecosystem context. Trends Ecol Evol 16:454–459CrossRefGoogle Scholar

Copyright information

© Springer 2010

Authors and Affiliations

  1. 1.Forestry and Forest Products Research InstituteTsukubaJapan

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