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Exotic species invasion into Mauritius wet forest remnants

Published online by Cambridge University Press:  10 July 2009

David H. Lorence  and
Robert W. Sussman
David H. Lorence
Affiliation:
Instituto de Biologίa, Universidad National Autόnoma de México;; St Louis, Missouri 63130, USA
Robert W. Sussman
Affiliation:
Washington University, Department of Anthropology, St Louis, Missouri 63130, USA
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Abstract

Two stands of mature evergreen wet forest in Mauritius (Mascarene Islands) were sampled for floristic composition to assess the extent of invasion by weedy exotic phanerogams (Brise Fer, 550 m alt.; Bon Courage, 200–260 m alt.). All individuals ≥ 2.5 cm dbh were recor ded in 50×2 m transects totalling 0.1 ha at each site, and 2×2 m seedling plots totalling 40 m were also sampled at each site. Both forests showed a high degree of invasion. Although exotics constituted only 5% of woody species ≥ 2.5 cm dbh at Brise Fer and 14.5% at Bon Courage, they comprised 34.8% and 20.8% of the individuals, respectively. Seedling plots at both sites were dominated by exotics, which comprised 20.6% of the species and 97.4% of the individuals at Brise Fer, and 22.2% of the species and 73.9% of the individuals at Bon Courage. Comparisons are made with Macabé forest, sampled nearly 50 years ago. These data suggest that unless steps are taken to check the spread of exotics, floristic composition at these sites will shift towards total invasion and degradation as has occurred elsewhere on Mauritius.

Keywords

exoticsforestinvasionMascarene IslandsMauritiusphanerogams
Type
Research Article
Information
Journal of Tropical Ecology , Volume 2 , Issue 2 , May 1986 , pp. 147 - 162
Copyright
Copyright © Cambridge University Press 1986

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References

LITERATURE CITED

ANON. 1979. Annual Report of the Mauritius Forestry Service. Government Printer, Port Louis, Mauritius.Google Scholar
Baker, J. G. 1877. Flora of Mauritius and the Seychelles. L. Reeve & Co., London.Google Scholar
Carlquist, S. 1965. Island life. Natural History Press, New York.Google Scholar
Carlquist, S. 1974. Island biology. Columbia University Press, New York.CrossRefGoogle Scholar
Cheke, A. S. (in press). The ecological history of the Mascarene Islands. In Diamond, A. W. (ed.). Studies of Mascarene Island birds. Cambridge University Press, Cambridge.Google Scholar
Halais, P. & Davy, E. J. 1969. Notes on the 1:100,000 agro-climatic map of Mauritius. Mauritius Sugar Industry Research Institute Occasional Paper no. 23, Réduit, Mauritius.Google Scholar
Lorence, D. H. 1978. The pteridophytes of Mauritius (Indian Ocean): ecology and distribution. Journal of the Linnean Society (Botany) 76:207–247.CrossRefGoogle Scholar
Parish, D. H. & Feillafe, S. M. 1965. Notes on the 1:100,000 soil map of Mauritius. Mauritius Sugar Industry Research Institute Occasional Paper no. 22, Réduit, Mauritius.Google Scholar
Tagawa, T. K. 1979. Foreign noxious weed survey 1979. Hawaii Department of Agriculture, Division of Plant Industry, and USDA Animal and Plant Health Inspection Service, Honolulu, Hawaii.Google Scholar
Vaughan, R. E. 1937. Contributions to the flora of Mauritius. I. An account of the naturalized flowering plants recorded from Mauritius since the publication of Baker's Flora of Mauritius and the Seychelles. Journal of the Linnean Society (Botany) 51:285–308.CrossRefGoogle Scholar
Vaughan, R. E. 1968. Mauritius and Rodrigues. Pp. 265–272 in Hedberg, I. & O. (eds). Conservation of vegetation in Africa south of the Sahara. Acta phytogeographica suecana 54.Google Scholar
Vaughan, R. E. & Wiehe, P. O. 1937. Studies on the vegetation of Mauritius. I. A preliminary survey of the plant communities. Journal of Ecology 25:298–343.CrossRefGoogle Scholar
Vaughan, R. E. & Wiehe, P. O. 1941. Studies on the vegetation of Mauritius III. The structure and development of the upland climax forest. Journal of Ecology 29:127–160.CrossRefGoogle Scholar
Vaughan, R. E. & Wiehe, P. O. 1947. Studies on the vegetation of Mauritius IV. Some notes on the internal climate of the upland climax forest. Journal of Ecology 34:126–136.Google Scholar
Wagner, W. L., Herbst, D. R. – Yee, R. S. N. 1984. Status of the native flowering plants of the Hawaiian Islands. Pp. 23–74 in Stone, C. P.Scott, J. M. (eds). Hawaii's terrestrial ecosystems: preservation and management. Cooperative National Park Resources Studies Unit, University of Hawaii, Honolulu.Google Scholar