National gene conservation unit number: 20
Date of collection of the field data entered: 2018
Date of the most recent visit: 2018
Location
Unit country: United Kingdom
Unit province or state: Scotland
Unit department or county: Highland
Unit municipality: Strontian
Unit local name: Ariundle Oakwood NNR
Ownership of the unit:
Public
Unit elevation [m a.s.l.]: 30 - 170
Unit surface area [ha]: 70.7
Coordinates (Public coordinates):
Latitude (Decimal):56.7214 | Longitude (Decimal): -5.5310
Soil: Fibric Histosols
Climate
Mean monthly temperature and mean monthly precipitation2
All tree species reported in the unit: Alnus glutinosa; Betula pendula; Betula pubescens; Corylus avellana; Fraxinus excelsior; Ilex aquifolium; Prunus padus; Quercus petraea; Quercus robur; Sorbus aucuparia; Ulmus glabra
Target species for conservation in the GCU:
Betula pubescens,
Corylus avellana,
Fraxinus excelsior,
Quercus petraea,
Quercus robur,
Sorbus aucuparia
Unit type:
Gene reserve forest, Biodiversity conservation
Target species: Betula pubescens
Status of the target species in the GCU: Included Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochthonous Population share (%): 60%
Estimated number of reproducing trees (interval): >5001
Status of long-term viable regeneration: Continuous
Management
Population management: Minimum intervention allowed
Predominant silvicultural system: -
Target species: Corylus avellana
Status of the target species in the GCU: Included Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochthonous Population share (%): 10%
Estimated number of reproducing trees (interval): 501 - 5000
Status of long-term viable regeneration: Sporadic
Management
Population management: Minimum intervention allowed
Predominant silvicultural system: -
Target species: Fraxinus excelsior
Status of the target species in the GCU: Included Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochthonous Population share (%): 15%
Estimated number of reproducing trees (interval): 501 - 5000
Status of long-term viable regeneration: Sporadic
Management
Population management: Minimum intervention allowed
Predominant silvicultural system: -
Target species: Quercus petraea
Status of the target species in the GCU: Included Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochthonous Population share (%): 90%
Estimated number of reproducing trees (interval): >5001
Status of long-term viable regeneration: Sporadic
Management
Population management: Minimum intervention allowed
Predominant silvicultural system: -
Target species: Quercus robur
Status of the target species in the GCU: Included Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochthonous Population share (%): 20%
Estimated number of reproducing trees (interval): 501 - 5000
Status of long-term viable regeneration: Sporadic
Management
Population management: Minimum intervention allowed
Predominant silvicultural system: -
Target species: Sorbus aucuparia
Status of the target species in the GCU: Included Category of the target species in the GCU: In situ Origin of the target species in the GCU : Autochthonous Population share (%): 25%
Estimated number of reproducing trees (interval): 501 - 5000
Status of long-term viable regeneration: Continuous
Management
Population management: Minimum intervention allowed
Predominant silvicultural system: -
Location
