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Solway Shingle Surveys

Shingle beaches that are sufficiently stable enough to support perennial vegetation are a comparatively rare feature globally.  In Scotland, there is an estimated 1,100 hectares of vegetated shingle, mainly located in Dumfries and Galloway, Morayshire and in the North West.  

Vegetated shingle provides a very important habitat for a wide range of invertebrate species.  In the UK, there are many species of invertebrate that are fully reliant and dependent on this habitat. It is however threatened by a number of natural as well as man-made influences such as natural mobility, disturbance, development, climate change and pollution. Vegetated shingle is listed as a UK Biodiversity Action Plan (UKBAP) priority habitat as well as being included on Annex 1 of the European Commission Habitats Directive as a habitat of international importance.

(c) Chris Catherine

(c) Chris Catherine

Surveys by Buglife for invertebrates, focusing on Mollusca (slugs and snails), Coleoptera (beetles), and aculeate Hymenoptera (bees, wasps and ants), were commissioned by Scottish Natural Heritage along the north Solway Firth coast in the summer of 2010 and 2011.  Forty sites had previously been surveyed for their vegetation by Randall and Doody (2000).  Of these eight were surveyed for invertebrates by Buglife choosing sites to reflect the character of the coast and to ensure as wide coverage across the area as possible.

Altogether a total of 242 invertebrate species were recorded at the 8 sites surveyed, including 59 species of Coleoptera, 15 species of Hymenoptera and 40 species of Mollusca.  Some of the amazing invertebrate species recorded included the Bloody nosed beetle (Timarcha tenebricosa), Copper sun jumper (Heliophanus cupreus) and the Blind agate snail (Cecilioides acicula). 

A secondary outcome for the study was to raise awareness of the importance of shingle for invertebrates on the north Solway Firth coast and to encourage others to study invertebrates in Dumfries and Galloway.  During 2011 a number of events were organised and attended.

Bloody nosed beetle (Timarcha tenebricosa) (c) Suzanne Bairner

Bloody nosed beetle (Timarcha tenebricosa) (c) Suzanne Bairner

The star of the day at a ‘Meet the Bugs’ event held at RSPB Mersehead was the Rhinoceros beetle (Synodendron cylindricum) which had been discovered on the reserve earlier in the week.  A bug walk held at Rascarrel Bay resulted in the discovery of Short-winged cone-head’s (Conocephalus dorsalis) in vegetation adjacent to the shingle beach, this is only the second record of this species in Scotland.

Read more about our amazing discoveries in the Solway Firth Report.

 

References

Randall, R. E. and Doody, P. (2000). Inventory of shingle vegetation survey- Solway Firth Scottish Natural Heritage Commissioned Report No. F00aa405.

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