Semi-natural grasslands are hugely important reservoirs for biodiversity, supporting a diverse range of plant and animal species. They also perform a wide range of other ecosystem services such as healthy soil, climate regulation, flood attenuation, etc. In Ireland we are lucky to have large areas of semi-natural grassland, including six types which are listed for protection on the EU Habitats Directive (listed below). Sadly, however, these are now among the most threatened habitat types in Ireland.
In this part of the world, grasslands need management. Without a least periodic grazing or mowing most grassland areas would become rank, scrubby, or invaded by other species (e.g. bracken, bramble, shrubs and trees). Woodlands and scrub are of course valuable habitats in their own right, but it is a shame to lose all the wondrous biodiversity and other values of semi-natural grasslands to newly spreading bracken or scrub. (Woodland creation should in general be focused on less valuable habitats, e.g. improved grasslands.)
Farming and semi-natural grassland conservation go hand-in-hand. The importance of farmers in maintaining our high-nature-value farmland and semi-natural grasslands cannot be overstated. Awareness of why semi-natural grasslands are valuable, how to recognise them, and how best to manage them, can be patchy however. Through dialogue, liaison and awareness-raising, both within and outside of the agricultural communities, it is hoped to work to improve this.
Grassland types found in Ireland which are listed on the EU Habitats Directive
- Orchid-rich calcareous grassland
- Lowland hay meadow (traditionally managed meadows with high species richness)
- Molinia meadow (wettish grasslands with purple moor grass and high species richness)
- Nardus grassland (acid grasslands, usually in the uplands)
- Hydrophilous tall herb (community dominated by herbs, with upland and lowland variants)
- Calaminarian grassland (community dominated by mosses and found on mine waste)
Where to find further information
Some of the publications detailing grassland surveys in Ireland can be found by clicking the following links:
- Irish Semi-natural Grasslands Survey (2007-2012) main report
- Grassland Monitoring Survey report (2015-2017)
- Article 17 reports – from early 2019, giving most recent updates on conservation status of each habitat type
Members of the Scientific Unit can be contacted by e-mailing firstname.lastname@example.org.