Biodiversity & Conservation

, Volume 12, Issue 8, pp 1775–1783 | Cite as

Trypomastigotes and potential flea vectors of the endemic rodents and the introduced Rattus rattus in the rainforests of Madagascar

  • Juha Laakkonen
  • Steven M. Goodman
  • Jean-Bernard Duchemin
  • Jean-Marc Duplantier

Abstract

Transmission of parasites and diseases may be one of the mechanisms for the displacement of native and endemic rodents of Madagascar (subfamily Nesomyinae) by the introduced Rattus rattus (subfamily Murinae). We studied the occurrence of trypomastigotes in rodents at several rainforest sites on the island. Examination of blood smears showed Trypanosoma lewisi-like trypomastigotes in 11.5% of the R. rattus (n = 52). Trypomastigotes differing in morphology from those of T. lewisi were detected in 4% of the endemic rodent Nesomys rufus (n = 23). In contrast to the relatively heavy infections found in R. rattus, only a few trypomastigotes were found in the infected N. rufus. Trypomastigotes were not found in other nesomyine rodents including Eliurus minor (n = 18), E. tanala (n = 15), E. grandidieri (n = 12), E. majori (n = 9) or E. webbi (n = 9). Of potential vectors of trypomastigotes, six endemic species of fleas were identified from the rodents.

Fleas Invasion Madagascar Murinae Nesomyinae Rodents Trypanosoma 

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References

  1. Anonymous 1941. Trypanosome du rat. Archives de l'Institut Pasteur de Madagascar Extrait du Rapport Annuel pour 1940. p. 40.Google Scholar
  2. Calero C. 1952. Incidence of Trypanosoma lewisi, Sarcocystis muris, species of spirochaeta and microfilarial larvae in rats in Panama city and suburbs. Journal of Parasitology 38: 369.Google Scholar
  3. Davis B.S. 1952. Studies on the trypanosomes of some California mammals. University of California Publications, Zoology 57: 145–250.Google Scholar
  4. Doré A.B. 1918. Rat trypanosomes in New Zealand. New Zealand Journal of Science and Technology 1: 200.Google Scholar
  5. Goodman S.M. 1995. Rattus on Madagascar and the dilemma of protecting the endemic rodent fauna. Conservation Biology 9: 450–453.Google Scholar
  6. Goodman S.M. and Carleton M.D. 1996. The rodents of the Réserve Naturelle Intégrale d'Andringtra, Madagascar. In: Goodman S.M. (ed.), A Floral and Faunal Inventory of the Eastern Slopes of the Réserve Naturelle Intégrale d'Andringitra, Madagascar: With Reference to Elevational Variation. Fieldiana: Zoology, new series 85: 257–283.Google Scholar
  7. Goodman S.M. and Carleton M.D. 1998. The rodents of the Réserve Spéciale d'Anjanaharibe-Sud, Madagascar. In: Goodman S.M. (ed.), A Floral and Faunal Inventory of the Réserve Spéciale d'Anjanaharibe-Sud, Madagascar: With Reference to Elevational Variation. Fieldiana: Zoology, new series 90: 201–221.Google Scholar
  8. Goodman S.M., Andrianarimisa A., Olson L.E. and Soarimalala V. 1996. Patterns of elevational distribution of birds and small mammals in the humid forests of Montagne d'Ambre, Madagascar. Ecotropica 2: 87–98.Google Scholar
  9. Green G.M. and Sussman R.W. 1990. Deforestation history of the eastern rainforests of Madagascar from satellite images. Science 248: 212–215.Google Scholar
  10. Holt R.D. 1977. Predation, apparent competition and the structure of prey communities. Theoretical Population Biology 12: 197–229.Google Scholar
  11. Jansa S.A., Goodman S.M. and Tucker P.K. 1999. Molecular phylogeny and biogeography of the native rodents of Madagascar (Muridae: Nesomyinae): a test of the single-origin hypothesis. Cladistics 15: 253–270.Google Scholar
  12. Jennings F.W., Murray P.K., Murray M. and Urquhart G.M. 1974. Anaemia in Trypanosomiasis: studies in rats and mice infected with Trypanosoma brucei. Research in Veterinary Science 16: 70–76.Google Scholar
  13. Kartman L. 1954. Observations on Trypanosoma lewisi and Grahamella sp. in the blood of rats from the Hamakua district, Island of Hawaii. Journal of Parasitology 40: 571–579.Google Scholar
  14. Kreier J.P. and Baker J.R. 1987. Parasitic Protozoa. 1st edn. Allen and Unwin, Inc., Boston, Massachusetts.Google Scholar
  15. Laveran A. and Mesnil F. 1904. Trypanosomes et Trypanosomiases. 1st edn. Masson, Paris, pp. 53–97.Google Scholar
  16. Marquardt W.C., Demaree R.S. and Grieve R.B. 2000. Parasitology and Vector Biology. 1st edn. Harcourt/Academic Press, London.Google Scholar
  17. Nelson R. and Horning N. 1993. AVHRR-LAC estimates of forest area in Madagascar, 1990. International Journal of Remote Sensing 14: 1463–1475.Google Scholar
  18. Perrier de la Bâthie H. 1921. La végétation malgache. Annales de l'Institut Botanico-geologique Colonial de Marseille (série 3) 9: 1–226.Google Scholar
  19. Pickering J. and Norris C.A. 1996. New evidence concerning the extinction of the endemic murid Rattus macleari from Christmas Island, Indian Ocean. Australian Mammalogy 19: 19–25.Google Scholar
  20. Radimilahy C. 1997. Mahilaka, an eleventh-to fourteenth-century Islamic port: the first impact of urbanism on Madagascar. In: Goodman S.M. and Patterson B.D. (eds), Natural Change and Human Impact in Madagascar. Smithsonian Institution Press, Washington, DC, pp. 342–363.Google Scholar
  21. Rakotozafy L.M.A. 1996. Etude de la constitution du régime alimentaire des habitants du site de Mahilaka du Xlè au XIVè siècle à partir des produits de fouilles archéologiques, Doctorat de Troisième Cycle, Université d'Antananarivo, Antananarivo, Madagascar.Google Scholar
  22. Raxworthy C.J. and Nussbaum R.A. 1994. A rainforest survey of amphibians, reptiles and small mammals at Montagne d'Ambre, Madagascar. Biological Conservation 69: 65–73.Google Scholar
  23. Roberts M. 1991. Parasitological evidence for the presence of other rodent species on ‘kiore only’ islands. Journal of the Royal Society of New Zealand 21: 349–356.Google Scholar
  24. Sakla A.A. and Monib M.E.M. 1984. Redescription of the life cycle of Trypanosoma lewisi from Upper Egyptian rats. Journal of the Egyptian Society of Parasitology 14: 367–376.Google Scholar
  25. Saxena V.K. and Miyata A. 1993. An unusual morphological type of Trypanosoma (Herpetosoma) lewisi (Kent 1880) detected in the blood of Rattus norvegicus in India. Journal of Communicable Diseases 25: 15–17.Google Scholar
  26. Shaw G.L. and Dusanic D.G. 1973. Trypanosoma lewisi: termination of pregnancy in the infected rat. Experimental Parasitology 33: 46–55.Google Scholar
  27. Webb C.S. 1953. A Wanderer in the Wind: The Odyssey of an Animal Collector. Hutchinson, London.Google Scholar
  28. Yinyin C. 1988. Studies of Trypanosoma lewisi in Guangdong, China: I. Characteristics and multiplication in the experimental hosts. Acta Zoologica Sinica 34: 27–33.Google Scholar

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Juha Laakkonen
  • Steven M. Goodman
  • Jean-Bernard Duchemin
  • Jean-Marc Duplantier

There are no affiliations available

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