Grasslands on limestone within the National Park have developed vegetation adapted to the calcium-rich, free-draining soil. These are called calcareous (calcium-loving) grasslands and include areas in both the lowlands and uplands. It is one of the most scarce types of grassland in the National Park.
Calcarerous grasslands are only found where the limestone outcrops as a thin band across the National Park and isolated outcrops elsewhere. They are typically managed as tightly grazed pasture supporting sheep, cattle or sometimes horses. Calcareous grassland sites occur in both enclosed and unenclosed situations and within the National Park are also found immediately around areas of limestone pavement. The cover of lowland calcareous grassland has suffered a sharp decline in extent over the last 50 years, particularly as lowland areas have been modified by agriculture to be more productive. This has enabled more animals to graze, but also excluded many species of wildflower.
Lowland calcareous grasslands support a very rich flora including many nationally rare and scarce species while it also supports birds and butterflies like the common blue. Hawthorn, blackthorn or gorse scrub is often found on or around calcareous grasslands and this can encourage more wildlife by providing shelter for invertebrates, reptiles and birds.
For more information see;
Buglife: Guides available for the management of calcareous grasslands for invertebrates in both Lowland and Upland locations.
Explore more grassland and farmland habitats by using the navigation bar on the left or go back to Biodiversity in the National Park.
Thursdy 27 March 2008
News updatefind out what's new in the Park
Popular waterfall reopensThe path behind Sgywd yr Eira has re-opened