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Journal of Insect Conservation

, Volume 2, Issue 3–4, pp 235–246 | Cite as

The orthopteroids of the Seychelles: a threatened island fauna

  • P. Matyot
Article

Abstract

Although they are conspicuous components of the native fauna, the orthopteroid insects of the Seychelles islands have attracted little attention from ecologists and conservationists throughout most of the twentieth century. Yet, at a complex crossroads, where the Afro-tropical, Malagasy and Oriental faunal regions overlap, they are potentially valuable biogeographical indicators in a region with an extremely complex palaeogeography. The taxonomic isolation of a number of species, incipient speciation among others, as well as possible interisland divergence in some cases make them worthy subjects of evolutionary studies. Most of the endemic species are indicators of undisturbed habitats and some play a role in food chains as the prey of endemic birds and hunting wasps (Sphecidae). The Seychelles orthopteroids are vulnerable to habitat disturbance caused by human activity and are now mainly confined to patches of native vegetation. They are threatened by further encroachment and by introduced predators and competitors.

orthopteroids Seychelles threatened island fauna. 

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Copyright information

© Chapman and Hall 1998

Authors and Affiliations

  • P. Matyot
    • 1
  1. 1.c/o Seychelles Broadcasting CorporationSeychelles

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