Database release:
SDF
NATURA 2000 - STANDARD DATA FORM

For Special Protection Areas (SPA),
Proposed Sites for Community Importance (pSCI),
Sites of Community Importance (SCI) and
for Special Areas of Conservation (SAC)

TABLE OF CONTENTS

1. SITE IDENTIFICATION

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1.1 Type

B

1.2 Site code

ES2430109

1.3 Site name

Hoces de Torralba - Río Piedra

1.4 First Compilation date

2000-07

1.5 Update date

2012-06

1.6 Respondent:

Name/Organisation:Dirección General de Medio Natural y Gestión Forestal. Departamento de Agricultura, Ganadería y Medio Ambiente. Gobierno de Aragón
Address:               
Email:biodiversidad@aragon.es

1.7 Site indication and designation / classification dates

Date site proposed as SCI:2000-07
Date site confirmed as SCI:2006-06
Date site designated as SAC: No data
National legal reference of SAC designation: No data

2. SITE LOCATION

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2.1 Site-centre location [decimal degrees]:

Longitude:-1.707500
Latitude:41.055000

2.2 Area [ha]

3036.6303

2.3 Marine area [%]

0.0000

2.4 Sitelength [km]:

0.00

2.5 Administrative region code and name

NUTS level 2 code Region Name
ES24Aragón

2.6 Biogeographical Region(s)

Mediterranean (100.00 %)

3. ECOLOGICAL INFORMATION

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3.1 Habitat types present on the site and assessment for them

Annex I Habitat types Site assessment
Code PF NP Cover [ha] Cave [number] Data quality A|B|C|D A|B|C
      RepresentativityRelative SurfaceConservationGlobal
4090  info      630.2  0.00 
5210  info      59.4  0.00 
6170  info      146.81  0.00 
6220  info      70.99  0.00 
8130  info      41.947  0.00 
8210  info      8.56  0.00 
9340  info      845.48  0.00 
9560  info      48.43  0.00 
  • PF: for the habitat types that can have a non-priority as well as a priority form (6210, 7130, 9430) enter "X" in the column PF to indicate the priority form.
  • NP: in case that a habitat type no longer exists in the site enter: x (optional)
  • Cover: decimal values can be entered
  • Caves: for habitat types 8310, 8330 (caves) enter the number of caves if estimated surface is not available.
  • Data quality: G = 'Good' (e.g. based on surveys); M = 'Moderate' (e.g. based on partial data with some extrapolation); P = 'Poor' (e.g. rough estimation)

3.2 Species referred to in Article 4 of Directive 2009/147/EC and listed in Annex II of Directive 92/43/EEC and site evaluation for them

Species Population in the site Site assessment
G Code Scientific Name S NP T Size Unit Cat. D.qual. A|B|C|D A|B|C
      MinMax  Pop.Con.Iso.Glo.
BA247Alauda arvensis          DD 
BA255Anthus campestris          DD 
P1614Apium repens    4637  4637  area   
BA226Apus apus          DD 
BA228Apus melba          DD 
BA091Aquila chrysaetos     
BA215Bubo bubo          DD 
BA365Carduelis spinus          DD 
BA373Coccothraustes coccothraustes          DD 
BA253Delichon urbica          DD 
A1195Discoglossus jeanneae    -1        DD       
BA379Emberiza hortulana          DD 
BA269Erithacus rubecula          DD 
BA103Falco peregrinus     
BA322Ficedula hypoleuca          DD 
BA359Fringilla coelebs          DD 
BA245Galerida theklae          DD 
BA078Gyps fulvus    37  37   
BA300Hippolais polyglotta          DD 
BA251Hirundo rustica          DD 
BA233Jynx torquilla          DD 
BA341Lanius senator          DD 
BA246Lullula arborea          DD 
BA271Luscinia megarhynchos          DD 
P1429Marsilea strigosa                   
BA230Merops apiaster          DD 
BA280Monticola saxatilis          DD 
BA262Motacilla alba          DD 
BA319Muscicapa striata          DD 
BA319Muscicapa striata          DD 
BA077Neophron percnopterus     
BA278Oenanthe hispanica          DD 
BA279Oenanthe leucura          DD 
BA337Oriolus oriolus          DD 
BA214Otus scops          DD 
F5292Parachondrostoma miegii    16  grids1x1   
BA273Phoenicurus ochruros          DD 
BA313Phylloscopus bonelli          DD 
BA315Phylloscopus collybita          DD 
BA315Phylloscopus collybita          DD 
BA267Prunella collaris          DD 
BA267Prunella collaris          DD 
BA420Pterocles orientalis     
BA346Pyrrhocorax pyrrhocorax          DD 
BA318Regulus ignicapillus          DD 
M1304Rhinolophus ferrumequinum    -1        DD       
M1303Rhinolophus hipposideros          DD       
BA311Sylvia atricapilla          DD 
BA310Sylvia borin          DD 
BA304Sylvia cantillans          DD 
BA309Sylvia communis          DD 
BA303Sylvia conspicillata          DD 
BA306Sylvia hortensis          DD 
BA302Sylvia undata          DD 
BA333Tichodroma muraria          DD 
BA265Troglodytes troglodytes          DD 
BA285Turdus philomelos          DD 
BA287Turdus viscivorus          DD 
BA232Upupa epops          DD 
  • Group: A = Amphibians, B = Birds, F = Fish, I = Invertebrates, M = Mammals, P = Plants, R = Reptiles
  • S: in case that the data on species are sensitive and therefore have to be blocked for any public access enter: yes
  • NP: in case that a species is no longer present in the site enter: x (optional)
  • Type: p = permanent, r = reproducing, c = concentration, w = wintering (for plant and non-migratory species use permanent)
  • Unit: i = individuals, p = pairs or other units according to the Standard list of population units and codes in accordance with Article 12 and 17 reporting (see reference portal)
  • Abundance categories (Cat.): C = common, R = rare, V = very rare, P = present - to fill if data are deficient (DD) or in addition to population size information
  • Data quality: G = 'Good' (e.g. based on surveys); M = 'Moderate' (e.g. based on partial data with some extrapolation); P = 'Poor' (e.g. rough estimation); VP = 'Very poor' (use this category only, if not even a rough estimation of the population size can be made, in this case the fields for population size can remain empty, but the field "Abundance categories" has to be filled in)

3.3 Other important species of flora and fauna (optional)

Species

Population in the site

Motivation

Group CODE Scientific Name S NP Size Unit Cat. Species Annex Other categories
     MinMax C|R|V|PIVVABCD
2436Acanthodactylus erythrurus               
A085Accipiter gentilis                 
A086Accipiter nisus                 
1191Alytes obstetricans             
2361Bufo bufo    -1             
A087Buteo buteo                 
2644Capreolus capreolus                   
A366Carduelis cannabina                 
A364Carduelis carduelis                 
A335Certhia brachydactyla                 
2645Cervus elaphus                   
A288Cettia cetti                  
1272Chalcides bedriagai    -1             
A363Chloris chloris                 
A350Corvus corax                 
A237Dendrocopos major                 
Elatine hydropiper macropoda    grids1x1             
A383Emberiza calandra                 
A378Emberiza cia                 
A377Emberiza cirlus                 
6284Epidalea calamita    -1             
A096Falco tinnunculus                 
Fraxinus angustifolia                   
Juniperus phoenicea                   
A281Monticola solitarius                 
A261Motacilla cinerea                 
A329Parus caeruleus                 
A330Parus major                 
1198Pelobates cultripes    -1             
1198Pelobates cultripes    -1             
2360Pelodytes punctatus    -1                 
A357Petronia petronia                 
2431Psammodromus hispanicus               
A250Ptyonoprogne rupestris                 
A276Saxicola torquatus                 
A361Serinus serinus                 
5861Sus scrofa                   
  • Group: A = Amphibians, B = Birds, F = Fish, Fu = Fungi, I = Invertebrates, L = Lichens, M = Mammals, P = Plants, R = Reptiles
  • CODE: for Birds, Annex IV and V species the code as provided in the reference portal should be used in addition to the scientific name
  • S: in case that the data on species are sensitive and therefore have to be blocked for any public access enter: yes
  • NP: in case that a species is no longer present in the site enter: x (optional)
  • Unit: i = individuals, p = pairs or other units according to the standard list of population units and codes in accordance with Article 12 and 17 reporting, (see reference portal)
  • Cat.: Abundance categories: C = common, R = rare, V = very rare, P = present
  • Motivation categories: IV, V: Annex Species (Habitats Directive), A: National Red List data; B: Endemics; C: International Conventions; D: other reasons

4. SITE DESCRIPTION

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4.1 General site character

Habitat class % Cover
N0817.00
N094.00
N128.00
N153.00
N1627.00
N177.00
N1833.00
N221.00

Total Habitat Cover

100

Other Site Characteristics

El espacio se enmarca dentro de las sierras mesozoicas de naturaleza carbonatada de la Ibérica Zaragozana, con superficies de erosión en calizas que se sitúan en torno a los 1100-1200m de altitud y que se prolongan por la provincia de Guadalajara. El río Piedra desde su nacimiento conforma un estrecho valle encajado formando meandros excavados en la roca caliza de gran interés geomorfológico. Encontramos interesantes comunidades rupícolas asociadas a los roquedos del cañón fluvio-kárstico. Las formaciones vegetales predominantes están formadas por bosques maduros de quercineas, principalmente Quercus rotundifolia y Quercus faginea, este último situado sobretodo en las zonas más húmedas y siguiendo el cauce del río. En otros sectores aparecen formaciones arbustivas con Juniperus phoenicea entre otras especies. Las repoblaciones forestales de coníferas sobre todo Pinus nigra ocupan pequeños sectores. Las actividades agropecuarias son los principales usos del espacio, encontrando algunos terrenos de cultivo y zonas con evidencias de pastoreo.

4.2 Quality and importance

Espacio de gran interés geomorfológico y biogeográfico por la presencia de un cañón fluviokárstico excavado por el río Piedra entre relieves calcáreos, formando paredones verticales con una flora rupícola asociada. Hay que destacar las formaciones boscosas de quejigos y encinares combinados con matorrales mediterráneos entre los que destaca la presencia de Juniperus phoenicea.

4.3 Threats, pressures and activities with impacts on the site

The most important impacts and activities with high effect on the site

Negative Impacts
RankThreats and pressures [code]Pollution (optional) [code]inside/outside [i|o|b]
LB02.01b
LB02.02b
LD01.01b
LD05b
LE01.02b
MF03.01b
LF03.02.02b
MF03.02.03b
LG01.02b
MG01.04b
LG05i
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]
LB02.01b

Rank: H = high, M = medium, L = low
Pollution: N = Nitrogen input, P = Phosphor/Phosphate input, A = Acid input/acidification,
T = toxic inorganic chemicals, O = toxic organic chemicals, X = Mixed pollutions
i = inside, o = outside, b = both

4.4 Ownership (optional)

Type[%]
PublicNational/Federal0
State/Province0
Local/Municipal0
Any Public0
Joint or Co-Ownership0
Private0
Unknown0
sum28.07

4.5 Documentation

YETANO, L.M. 1980: "El Sistema Ibérico Zaragozano: Los macizos paleozoicos y sus entorno. Estudio geomorfológico". Tesis doctoral

5. SITE PROTECTION STATUS

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5.1 Designation types at national and regional level:

Code Cover [%]
ES00100.00

6. SITE MANAGEMENT

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6.1 Body(ies) responsible for the site management:

Organisation:Dirección General de Medio Natural y Gestión Forestal. Departamento de Agricultura, Ganadería y Medio Ambiente. Gobierno de Aragón
Address:
Email:biodiversidad@aragon.es

6.2 Management Plan(s):

An actual management plan does exist:

Yes
No, but in preparation
X
No

 

7. MAP OF THE SITE

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SITE DISPLAY