Abstract

The comparative faunistic analysis of species diversity of family Gelechiidae in Islands of Peter the Great Gulf and in neighboring continental territories is made. The island fauna turned out depleted because of small size of islands, limited landscape diversity and impossibility of active moth migration due to their weak flying abilities. However the concentration of species diversity in islands is almost two orders of magnitude larger than that in continental part. The proportion of Gelechiid groups with certain type of geographic range in islands is similar to that in continental part, that is treated by recent their isolation. The fauna of every examined island is disharmonic, representing by some species from every genus and includes small number of common species that is interpreted by continual species extinction and an insignificant random drift from mainland.

Highlights

  • The island's fauna, being the result of natural experiment, has long attracted the attention of researchers

  • The goal of present work is faunistic and arealogical analyses of the Gelechiid moths found in the islands, the comparison of their species diversity with data on this group from neighboring continental territories located in temperate zone to understand the zoogeographic relationships and estimate origin and peculiarities of island Gelechiid fauna

  • 49 species of 29 genera Gelechiid moths were collected in the Rikord Isl., Bolshoy Pelis Isl. and Furugelm Isl. (Supplementary Table)

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Summary

Introduction

The island's fauna, being the result of natural experiment, has long attracted the attention of researchers. Despite the general manifestations each of the islands and its biota are unique and have their own specific features. These original features attract researchers and an extensive literature is devoted to island fauna of invertebrates and vertebrates. The goal of present work is faunistic and arealogical analyses of the Gelechiid moths found in the islands, the comparison of their species diversity with data on this group from neighboring continental territories located in temperate zone to understand the zoogeographic relationships and estimate origin and peculiarities of island Gelechiid fauna.

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