Data Zone
The site was identified as internationally important for bird conservation in 2007 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Hen Harrier Circus cyaneus | LC | breeding (2002–2004) | 13 pairs | B2 |
| Merlin Falco columbarius | LC | breeding (1993–1998) | 9 pairs | C6 |
| Peregrine Falcon Falco peregrinus | LC | breeding (2002) | 7 pairs | B2 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2007) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2007 | not assessed | medium | medium |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | unset | good | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Agricultural expansion and intensification | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Human intrusions and disturbance | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Energy production and mining | likely in long term (>4 years) | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Biological resource use | past (and unlikely to return) and no longer limiting | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Whole area (>90%) covered by appropriate conservation designation | A management plan exists, but it is out of date or not comprehensive | Some limited conservation initiatives are in place | medium |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1948 | Ysbyty Estate | Nature Reserve (V) | 26 |
| 1951 | Snowdonia | National Park (V) | 100 |
| 1971 | Migneint-Arenig-Dduallt | Site of Special Scientific Interest (UK) (IV) | 21 |
| 1971 | Cwm Cynfal | Site of Special Scientific Interest (UK) (IV) | <1 |
| 1981 | Bryn Glas Quarry | Site of Special Scientific Interest (UK) (IV) | <1 |
| 1987 | Castell Prysor | Site of Special Scientific Interest (UK) (IV) | <1 |
| 2001 | Amnodd-Bwll Stream Section | Site of Special Scientific Interest (UK) (IV) | <1 |
| 2001 | Llafar River Section | Site of Special Scientific Interest (UK) (IV) | <1 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Shrubland | major (>10) | Heathland |
| Wetlands (inland) | major (>10) | Blanket bogs; Rivers and streams; Standing freshwater |
| Forest | - | Mixed woodland |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Migneint - Arenig - Dduallt (United Kingdom). Downloaded from
https://datazone.birdlife.org/site/factsheet/migneint--arenig--dduallt-iba-united-kingdom on 23/12/2024.