Sierra de Ayllón

Quick facts

  • Natura 2000 site (code ES4160019)
  • Under Habitats Directive
  • Since January 1998
  • Country: Spain
  • Administrative region: Castilla y León (ES41)
  • Surface area: 143 km2 (14348.96 ha)
  • Marine area: 0%
  • Located in Mediterranean biogeographical region
  • It protects 10 species of the Nature Directives
  • It protects 30 habitat types of the Habitats Directive

Source and more information: Natura 2000 Standard Data Form



Species summary

Nature directives' species in this site (10)
Species group Number
Fishes 1
Invertebrates 3
Mammals 5
Reptiles 1

Habitat types

Habitat type code Habitat type english name Cover [ha]
4020 Temperate Atlantic wet heaths with Erica ciliaris and Erica tetralix 0.52
4030 European dry heaths 1226.08
4060 Alpine and Boreal heaths 188.63
4090 Endemic oro-Mediterranean heaths with gorse 5.12
5120 Mountain Cytisus purgans formations 377.25
5210 Arborescent matorral with Juniperus spp 391.36
6160 Oro-Iberian Festuca indigesta grasslands 152.24
6170 Alpine and subalpine calcareous grasslands 373.5
6210 Semi-natural dry grasslands and scrubland facies on calcareous substrates (Festuco-Brometalia) (* important orchid sites) 37.53
6220 Pseudo-steppe with grasses and annuals of the Thero-Brachypodietea 39.45
6230 Species-rich Nardus grasslands, on silicious substrates in mountain areas (and submountain areas in Continental Europe) 78.17
6410 Molinia meadows on calcareous, peaty or clayey-silt-laden soils (Molinion caeruleae) 0.11
6430 Hydrophilous tall herb fringe communities of plains and of the montane to alpine levels 10.9
6510 Lowland hay meadows (Alopecurus pratensis, Sanguisorba officinalis) 33.57
7140 Transition mires and quaking bogs 0.11
7150 Depressions on peat substrates of the Rhynchosporion 0.01
7220 Petrifying springs with tufa formation (Cratoneurion) 14.3
8130 Western Mediterranean and thermophilous scree 20.15
8210 Calcareous rocky slopes with chasmophytic vegetation 14.37
8220 Siliceous rocky slopes with chasmophytic vegetation 79.68
8230 Siliceous rock with pioneer vegetation of the Sedo-Scleranthion or of the Sedo albi-Veronicion dillenii 11.21
9120 Atlantic acidophilous beech forests with Ilex and sometimes also Taxus in the shrublayer (Quercion robori-petraeae or Ilici-Fagenion) 105.37
91B0 Thermophilous Fraxinus angustifolia woods 52.8
9230 Galicio-Portuguese oak woods with Quercus robur and Quercus pyrenaica 6227.33
9240 Quercus faginea and Quercus canariensis Iberian woods 8.84
92A0 Salix alba and Populus alba galleries 47.58
9380 Forests of Ilex aquifolium 14.3
9530 (Sub-) Mediterranean pine forests with endemic black pines 31.39
9560 Endemic forests with Juniperus spp 118.43
9580 Mediterranean Taxus baccata woods 1.2

Designation information

NATURA 2000 is the ecological network for the conservation of wild animals and plant species and natural habitats of Community importance within the Union. It consists of sites classified under the Birds Directive and the Habitats Directive (the Nature Directives).

NATURA 2000 site under

Birds Directive 2009/147/EC (SPA) Not under Birds directive
Habitats Directive 92/43/EEC (SCI) Under Habitats directive
  • Date proposed as Site of Community Importance (SCI)
January 1998
  • Date confirmed as Site of Community Importance
Not available
Date designated as Special Area of Conservation (SAC) September 2015
Date of Standard data form update October 2015

Interactive map

Other resources

Natura 2000 map viewer Interactive map designed for showing and querying Natura 2000 sites. Other information such as Nationally designated areas and LIFE projects are also available.
Protected planet map viewer Interactive map showing the World Database on Protected Areas
European protected sites map viewer Simple interactive map showing Natura 2000 sites and Nationally designated areas
Data download The Natura 2000 dataset is available from the European Environment Agency website
European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Phone: +45 3336 7100