Biodiversity
The Mourne AONB is celebrated for its stunning landscapes, which provide vital habitats for many species.
Biodiversity
The Mourne Area of Outstanding Natural Beauty (AONB) is recognized for its stunning landscape. This diverse terrain includes a variety of natural and semi-natural habitats, creating a beautiful mix of heather, moor, bog, and pasture. The region also features freshwater bodies and woodlands, with coastal areas displaying sandy and rocky shores, mudflats, and salt marshes.
Upland habitats, such as upland and montane heath, and blanket bog are extremely important. In the lowland countryside, agriculture dominates. It relies on vital semi-natural habitats like hedgerows, lowland heath, dry acid grassland, and meadows. Woodlands make up about one-fifth of the Mourne AONB. Over half of these woodlands are coniferous, while some areas feature broadleaved trees. The region has more than 340 km of rivers and streams. These water sources feed major reservoirs and support otters. They also provide spawning grounds for salmon and trout. Wetlands, including marshes and fens, offer ideal habitats for dragonflies and damselflies.
The beautiful Mourne coast is warmed by the southern Irish Sea and serves as an important nursery for young fish. Its salt marshes and mudflats provide habitat for many wintering waders. Offshore, the cold northern waters mix with warmer southern waters, supporting a variety of marine life, from tiny phytoplankton to larger grazing animals. This area is home to mammals like common and grey seals, as well as dolphins and harbour porpoises. Sea birds, including common and sandwich terns, can also be seen feeding in these waters.
Mourne Juniper – A Rare Native Species

Mourne Juniper (Juniperus communis) is a rare and iconic species native to the Mourne Mountains. Once widespread, it has declined due to habitat loss, overgrazing, and climate pressures. Our team has been working hard to restore and protect this vital part of our upland ecosystem.
Why Mourne Juniper Matters
Mourne Juniper plays a crucial role in local biodiversity. Its dense foliage provides shelter for birds and insects, while its berries support wildlife, including birds and small mammals. As one of the few native conifers in Ireland, it also helps prevent soil erosion and maintains the delicate balance of heathland habitats.
Conservation Efforts
To protect Mourne Juniper, conservation teams are working to restore its population. This includes:
- Seed Collection & Propagation – Gathering seeds from surviving plants and growing new junipers in nurseries.
- Habitat Protection – Managing grazing levels to allow young plants to establish and thrive.
- Public Awareness – Educating visitors and landowners on the importance of preserving this species.
How You Can Help
You can support Mourne Juniper conservation by sticking to designated paths, avoiding trampling young plants, and reporting sightings of healthy or struggling juniper populations. Together, we can help restore this ancient species and protect the unique landscape of the Mournes for future generations.
The Red Squirrel – A Woodland Treasure

Red Squirrels in the Mournes: Protecting a Precious Species
The Mourne Mountains are home to one of Ireland’s last strongholds of the native red squirrel. Once common across the country, red squirrel populations have declined due to habitat loss and competition from the invasive grey squirrel. Thanks to conservation efforts, the Mournes remain a key refuge for this iconic species.
Why Red Squirrels Matter
Red squirrels play a vital role in forest ecosystems by helping to regenerate woodlands. As they bury nuts and seeds, they naturally support tree growth. Unlike grey squirrels, they rely on native woodlands, making their presence a strong indicator of a healthy forest.
Threats to Red Squirrels
Red squirrels face several challenges, including:
- Grey Squirrel Competition – Grey squirrels outcompete reds for food and carry squirrelpox, a deadly disease for reds.
- Habitat Loss – Deforestation and land development reduce their woodland habitats.
- Climate Change – Changing weather patterns can impact food availability and survival rates.
Conservation Efforts
Local conservation groups are working hard to protect red squirrels in the Mournes through:
- Grey Squirrel Control – Managing grey squirrel populations to reduce competition.
- Habitat Restoration – Planting native trees and preserving woodland corridors.
- Public Engagement – Encouraging responsible wildlife watching and reporting sightings.
How You Can Help
You can support red squirrel conservation by keeping forests litter-free, reporting sightings of red or grey squirrels, and supporting local conservation groups. With continued efforts, we can ensure red squirrels remain a thriving part of the Mourne landscape for generations to come.
The Common Lizard – A Woodland Wonder

The Common Lizard: Northern Ireland’s Only Native Reptile
The common lizard (Zootoca vivipara) is Northern Ireland’s only native reptile. Often spotted basking in the sun on warm days, this elusive creature thrives in heathlands, bogs, and grasslands. Despite its name, the common lizard is not so common, and conservation efforts are key to protecting its habitat.
Where to Find Them
Common lizards prefer open, sunny areas with plenty of cover. They are most often seen in the Mourne Mountains, peat bogs, and coastal dunes. These cold-blooded reptiles rely on the sun to regulate their body temperature and are most active from March to October.
Unique Adaptations
Unlike many reptiles, common lizards give birth to live young instead of laying eggs, a key adaptation to Northern Ireland’s cooler climate. They are quick and agile, darting into vegetation when disturbed. If threatened, they can even shed their tail to escape predators.
Threats & Conservation
The main threats to common lizards include habitat loss, climate change, and disturbance from humans and pets. Conservation efforts focus on:
- Habitat Protection – Preserving heathlands and bogs where lizards thrive.
- Public Awareness – Encouraging responsible recreation in lizard habitats.
- Monitoring Populations – Tracking numbers to assess conservation needs.
How You Can Help
You can support common lizard conservation by sticking to paths in sensitive habitats, avoiding unnecessary disturbance, and reporting sightings to local wildlife groups. With the right protection, this fascinating reptile will continue to be a part of Northern Ireland’s rich biodiversity.
Ground Nesting Birds – Nature’s Fragile Residents

The Mourne Mountains are home to 10 species of ground-nesting birds, including migratory species that travel great distances to breed in this unique landscape.
These birds rely on undisturbed habitats to lay their eggs, but their well-camouflaged nests are vulnerable to human activity, habitat loss, and disturbance from off-lead dogs. Migratory birds, in particular, face additional challenges, as they depend on the Mournes as a crucial breeding ground after long and exhausting journeys.
By sticking to designated paths and keeping dogs on a short lead, visitors can help protect these special birds, ensuring both local and visiting species have a safe place to nest. Small actions can make a big difference in preserving the rich biodiversity of this stunning landscape.