The fauna of the Outer Hebrides has been shaped by geographical, geological and climatic elements, and influenced by past and present human activity. In common with most island groups our faunal diversity is much smaller than that of the equivalent latitude on the mainland; however, there are some species which are typical of more northern regions, and some which are sufficiently characteristic to be classified as subspecies, for example the St. Kilda Wren Troglodytes troglodytes hirtensis.
The invertebrates, with the exception of certain groups of insects, are seriously under-recorded and information on their biodiversity and distribution is very limited. In recent years considerable effort has been directed at recording some of the main insect groups, particularly the Lepidoptera (butterflies and moths) and Hymenoptera (bees, wasps, ants, sawflies and ichneumons), however there is still plenty to discover about these and some of the other insect taxa.
Our knowledge of the other major terrestrial and freshwater invertebrate groups is still very limited. In comparison the marine invertebrates have been more comprehensively surveyed.
This website covers all the vertebrate taxonomic orders (fish, amphibians, reptiles and mammals) apart from birds. Work has started on the invertebrates and so far it provides information on three taxonomic orders of insects: Hymenoptera (bees, wasps, ants, sawflies and ichneumons), Odonata (dragonflies and damselflies), Orthoptera (grasshoppers) and the Syrphidae (hoverflies)
Organised by a small group of enthusiastic birders in the islands, the aim is to promote the recording of birds in the county and bring together people with a shared interest in birds and birding in the Outer Hebrides.
Describes and illustrates the 14 species of butterfly and over 390 species of moth recorded in the islands.
© 2017 Chris & Christine Johnson. All rights reserved