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Conserving the endemic birds on the Comoro Islands, III: bird diversity and habitat selection on Ngazidja

Published online by Cambridge University Press:  11 May 2010

Jan Stevens ,
Michel Louette ,
Luc Bijnens  and
Marc Herremans
Jan Stevens
Affiliation:
Royal Museum for Central-Africa, B-3080 Tervuren, Belgium
Michel Louette
Affiliation:
Royal Museum for Central-Africa, B-3080 Tervuren, Belgium
Luc Bijnens
Affiliation:
Royal Museum for Central-Africa, B-3080 Tervuren, Belgium
Marc Herremans
Affiliation:
Department of Wildlife and National Parks (Ornithology Section), P. O. Box 131, Gaborone, Botswana
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Summary

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Bird species diversity is investigated in different habitat types on Ngazidja (Grand Comoro), Comoro Islands. Total bird diversity does not differ significantly among different forest types, but the proportion of endemic species, endemic subspecies and non-endemic species does. Both intact mature forests and pioneer forests on the slopes of Mount Karthala are important for the preservation of bird endemism. The forests on La Grille are poor in endemic species, but their bird species diversity is high thanks to non-endemics. Planting of Eucalyptus is useless for endemic birds. Humblotia flavirostris, Turdus bewsheri and Nesillas brevicaudata avoid logged forests, but Alectroenas sganzini is numerous in them. Foudia eminentissima is common in forests with bananas planted in the undergrowth.

La diversité en espèces d'oiseaux est étudiée dans différents habitats à Ngazidja (Grande Comore), lies Comores. La diversité totale ne varie pas d'une manière significative parmi les différents types de forêt, mais la fraction due aux especès endémiques, aux sous-espèces endémiques et aux espèces non-endémiques varie. Aussi bien les forêts intactes et matures et les forêts jeunes sur lave sont importantes pour la préservation d'oiseaux endémiques sur les flancs du Mont Karthala. Les forêts à La Grille sont pauvres en oiseaux endémiques, mais leur diversité est grande, grace aux espèces non-endémiques. Les plantations d'Eucalyptus n'ont pas de valeur pour les oiseaux endémiques. Humblotia flavirostris, Turdus bewsheri et Nesillas brevicaudata évitent les forêts exploitées pour le bois, mais Alectroenas sganzini y est nombreux. Foudia eminentissima est commun dans les forêts plantées de bananiers sous les arbres.

Type
Research Article
Information
Bird Conservation International , Volume 5 , Issue 4 , December 1995 , pp. 463 - 480
Copyright
Copyright © Birdlife International 1995

References

Benson, C. W. (1960) The birds of the Comoro Islands: results of the British Ornithologists' Union Centenary Expedition 1958. Ibis 103b: 5–106.CrossRefGoogle Scholar
Berger, A. J. (1981) Hawaiian birdlife. Honolulu: University Press of Hawaii.CrossRefGoogle Scholar
Bijnens, L., Stevens, J., Janssens, L. and Louette, M. (1987) Community structure of Grand Comoro land birds with special reference to the ecology of congeneric species. Revue Zool. Afr. 101: 221–232.Google Scholar
Blondel, J. (1990) Long-term studies in bird communities and populations in mainland and island Mediterranean forests. Pp. 167–182 in Keast, A., ed. Biogeography and ecology of forest bird communities. The Hague: Academic Publishing.Google Scholar
Connell, J. H. (1978) Diversity in tropical rainforest and coral reefs. Science 199: 1302–1310.CrossRefGoogle Scholar
Daniels, R. J. R., Hedge, M. and Gadgil, M. (1990) Birds of man-made ecosystems: the plantations. Proc. Indian Acad. Sci. (Anim. Sci.) 99 (1): 79–89.CrossRefGoogle Scholar
Gill, F. B. (1971) Ecology and evolution of the Mascarene white-eyes, Zosterops borbonica and Zosterops olivacea. Auk 88: 35–60.CrossRefGoogle Scholar
Grimm, E. C. (1987) CONISS: a FORTRAN JJ program for stratigraphically constrained cluster analysis by the method of incremental sum of squares. Comput. Geosci. 13: 13–35.CrossRefGoogle Scholar
Herremans, M., Louette, M. and Stevens, J. (1991) Conservation status and vocal and morphological description of the Grand Comoro Scops Owl Otus pauliani Benson 1960. Bird Conserv. lnternatn. 1: 123–133.CrossRefGoogle Scholar
Hustings, M. F. H., Kwak, R. G. M., Opdam, p. G. M. and Reynen, M. J. S. M. (1985) Vogelinventarisatie, achtergronden, richtlijnen en verslaggeving. Wageningen: PUDOC.Google Scholar
Louette, M. (1988) Les oiseaux des Comores. Ann. Mus. R. Afr. Centr., Zool. 255: 1–192.Google Scholar
Louette, M. and Herremans, M. (1985) Taxonomy and evolution in the bulbuls (Hypsipetes) on the Comoro Islands. Proc. Internatn. Symp. Afric. Vert. Bonn: 407–423.Google Scholar
Louette, M., Bijnens, L., Stevens, J. and Janssens, L. (1989) Comparison of forest bird communities on Ngazidja and Mwali (Comoro Islands). Ostrich suppl. 14: 33–37.CrossRefGoogle Scholar
Louette, M., Stevens, J., Bijnens, L. and Janssens, L. (1988) A survey of the endemic avifauna of the Comoro Islands. Cambridge, U.K.: International Council for Bird Preservation (Study Report 25).Google Scholar
Louette, M., Stevens, J., Herremans, M. and Vangeluwe, D. (1990) Conservation training and avifaunal inventories on the Comoro Islands. Unpublished.Google Scholar
Louette, M. and Stevens, J. (1992) Conserving the endemic birds of the Comoro Islands,: I general considerations on chances for survival. Bird Conserv. Internatn. 2: 61–80.CrossRefGoogle Scholar
Magurran, A. E. (1988) Ecological diversity and its measurement. Cambridge, U.K.: Cambridge University Press.CrossRefGoogle Scholar
Pattermore, V. and Kikkawa, J. (1975) Comparison of bird populations in logged and unlogged rainforest at Wiangarie State Forest, N.S.W. For. Comm. 37: 188–198.Google Scholar
Pielou, E. C. (1983) Populations and community ecology: principles and methods. New York: Gordon and Breach.Google Scholar
Pina, J. p. (1988) Birds in Eucalyptus plantations in Portugal. Acta Zool. Fenn. 26: 287–290.Google Scholar
Sakai, H. F. (1988) Avian response to mechanical clearing of a native rainforest in Hawaii. Condor 90: 339–348.CrossRefGoogle Scholar
Scott, J. M., Mountainspring, S., Ramsey, F. L. and Kepler, C. B. (1986) Forest bird communities of the Hawaiian Islands: their dynamics, ecology and conservation. Stud. Avian Biol. 9: 1–431.Google Scholar
Siegel, S. (1956) Nonparametric statistics for the behavioural sciences. New York: McGraw-HillGoogle Scholar
Soilih, A., Louette, M., Meirte, D., Stevens, J. and Herremans, M. (1992) A public awareness campaign and bird conservation training on the Comoro Islands. Proc. 8 Pan-Afr. Orn. Congr. [Ann. Sci. Zool. Mus. Roy. Afrique Centr. 286]: 178.Google Scholar
Stevens, J., Herremans, M. and Louette, M. (1992) Conserving the endemic birds on the Comoro Islands, II.: population fluctuations on Ngazidja. Bird Conserv. Internatn. 2: 81–91.CrossRefGoogle Scholar
Stevens, J., Louette, M., Bijnens, L. and Herremans, M. (1993) Bird diversity on Ngaz-idja, Comoro Islands. Proc. 8 Pan-Afr. Orn. Congr. [Ann. Sci. Zool. Mus. Roy. Afrique Centr. 286]: 179–186.Google Scholar
Tramer, E. J. (1974) On latitudinal gradients in avian diversity. Condor 76: 123–130.CrossRefGoogle Scholar
Ward, J. H. (1963) Hierarchical grouping to optimize an objective function. J. Amer. Stat. Assoc. 58 (301): 236–244.CrossRefGoogle Scholar
Wiens, J. A. (1989) The ecology of bird communities, 1: Foundations and patterns. CambridgeCambridge University Press.CrossRefGoogle Scholar