When undertaking an appropriate assessment of impacts at a site, all features of European importance (both primary and non-primary) need to be considered.
Annex I habitats that are a primary reason for selection of this site
|21A0 Machairs (* in Ireland)|
|Monach Islands complex is representative of machair types found in the Outer Hebrides and is similar to that found on North Uist. These islands consist almost entirely of machair and support some of the best examples of grazed uncultivated machair in the Outer Hebrides. There are rich calcareous grasslands as well as transitions to loch and acidic grassland. The islands are separated from outside human influences by 10 km of sea, and have been uninhabited and uncultivated since 1947. There are few human visitors, and therefore little interference with ecological processes compared with other machair systems. They provide a reference point for measuring the impact of human activities on machair systems.|
Annex I habitats present as a qualifying feature, but not a primary reason for selection of this site
|2120 "Shifting dunes along the shoreline with Ammophila arenaria (""white dunes"")"|
|2130 "Fixed coastal dunes with herbaceous vegetation (""grey dunes"")" * Priority feature|
Annex II species that are a primary reason for selection of this site
|1364 Grey seal Halichoerus grypus|
|The Monach Islands, off the Outer Hebrides, offer a wide area of largely undisturbed habitat for breeding grey seal Halichoerus grypus, and there is easy access to the grassy swards and dune systems of the islands. These islands hold the largest breeding colony in the UK, contributing over 20% of annual UK pup production.|
Annex II species present as a qualifying feature, but not a primary reason for site selection
Many designated sites are on private land: the listing of a site in these pages does not imply any right of public access.