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)
SITE | ES2110011 |
---|
SITENAME | Zadorraren sistemako urtegiak / Embalses del sistema del Zadorra |
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TABLE OF CONTENTS
1. SITE IDENTIFICATION
Back to top1.1 Type
1.2 Site code
1.3 Site name
Zadorraren sistemako urtegiak / Embalses del sistema del Zadorra |
1.4 First Compilation date
1.5 Update date
1.6 Respondent:
Name/Organisation: | Dirección de Patrimonio Natural y Cambio Climático. Gobierno Vasco |
Address: |
|
Email: | biodiversidad@euskadi.eus |
1.7 Site indication and designation / classification dates
Date site proposed as SCI: | 1997-12 |
Date site confirmed as SCI: | 2004-12 |
Date site designated as SAC: | 2015-06 |
National legal reference of SAC designation: | DECRETO 120/2015, de 30 de junio, por el que se designa Zona Especial de Conservación el
lugar Embalses del sistema del Zadorra.
https://www.euskadi.eus/r47-bopvvaci/es/bopv2/datos/2015/07/1503231a.pdf |
2. SITE LOCATION
Back to top2.1 Site-centre location [decimal degrees]:
Longitude: | -2.569700 |
Latitude: | 42.922300 |
2.2 Area [ha]
2.3 Marine area [%]
2.4 Sitelength [km] (optional):
No information provided
2.5 Administrative region code and name
NUTS level 2 code
|
Region Name
|
---|
ES21 | País Vasco |
ES21 | País Vasco |
2.6 Biogeographical Region(s)
Atlantic
| (33.08 %) |
Mediterranean
| (66.92 %) |
3. ECOLOGICAL INFORMATION
Back to top3.1 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
|
---|
| | | | | | Representativity | Relative Surface | Conservation | Global |
---|
3140
|
|
| 18.09
| 0.00
| M
| C
| C
| C
| C
|
3150
|
|
| 220.07
| 0.00
| M
| C
| C
| C
| C
|
3170
|
|
| 46.38
| 0.00
| G
| C
| C
| C
| C
|
3240
|
|
| 0
| 0.00
| D
| B
| C
| B
| B
|
3260
|
|
| 4.71
| 0.00
| G
| C
| C
| C
| C
|
4030
|
|
| 0.59
| 0.00
| M
| D
| C
|
|
|
4090
|
|
| 6.51
| 0.00
| M
| D
| C
|
|
|
6210
|
X
|
| 21.52
| 0.00
| M
| C
| C
| B
| B
|
6420
|
|
| 3.93
| 0.00
| M
| C
| C
| B
| B
|
6510
|
|
| 7.47
| 0.00
| M
| D
| C
|
|
|
9120
|
|
| 6.37
| 0.00
| M
| D
| C
|
|
|
9160
|
|
| 23.39
| 0.00
| M
| C
| C
| C
| C
|
91E0
|
|
| 10.93
| 0.00
| M
| C
| C
| C
| C
|
9230
|
|
| 1.17
| 0.00
| M
| C
| C
| C
| C
|
9240
|
|
| 37.27
| 0.00
| M
| B
| C
| B
| B
|
9260
|
|
| 0.27
| 0.00
| M
| D
| C
|
|
|
92A0
|
|
| 48.96
| 0.00
| M
| C
| C
| C
| C
|
- 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
- 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)
- 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
Back to top4.1 General site character
Habitat class
|
% Cover
|
---|
N06 | 80.96 |
N07 | 5.24 |
N08 | 1.89 |
N09 | 1.58 |
N10 | 1.38 |
N14 | 1.11 |
N16 | 4.27 |
N20 | 2.57 |
N23 | 1.00 |
N06 | 80.96 |
N07 | 5.24 |
N08 | 1.89 |
N09 | 1.58 |
N10 | 1.38 |
N14 | 1.11 |
N16 | 4.27 |
N20 | 2.57 |
N23 | 1.00 |
N06 | 80.96 |
N07 | 5.24 |
N08 | 1.89 |
N09 | 1.58 |
N10 | 1.38 |
N14 | 1.11 |
N16 | 4.27 |
N20 | 2.57 |
N23 | 1.00 |
N06 | 80.96 |
N07 | 5.24 |
N08 | 1.89 |
N09 | 1.58 |
N10 | 1.38 |
N14 | 1.11 |
N16 | 4.27 |
N20 | 2.57 |
N23 | 1.00 |
Total Habitat Cover | 399.99999999999994 |
---|
Other Site Characteristics
Embalses de grandes dimensiones (147 Hm cúbicos en Ullivarri y 71 en Urrunaga), que almacenan las aguas de los ríos Zadorra y de su tributario el Santa Engracia. Se localizan en la zona septentrional de Álava. Fueron construidos en los años 50 del siglo XX, para el abastecimiento de agua potable a las ciudades de Vitoria y Bilbao. No obstante, se aprovechan también desde el punto de vista hidroeléctrico y recreativo, ya que sus orillas son muy frecuentadas por bañistas y existen varios sectores acondicionados (áreas recreativas, club naútico).
El entorno paisajístico de los embalses es variado, ya que al norte quedan cerrados por las sierras de Elgea y las estribaciones de Gorbeia y Urkiola, mientras al sur se extienden las áreas de cultivos e industriales de la Llanada Alavesa. Las pendientes suaves de algunas de sus orillas han permitido que en ellas se instale vegetación hidrófita, de forma que se ha producido un proceso de naturalización en algunas colas y ensenadas someras, destacando las del sector sur del embalse de Ullívarri. |
4.2 Quality and importance
En las márgenes de estos embalses se encuentran dispersas varias saucedas, que adquieren importancia en las ensenadas y en los fondos de las colas de aguas someras. Especial relevancia tienen los hidrófitos y plantas sumergidas que llegan a formar grandes "praderas flotantes" en los márgenes y zonas de escasa profundidad. Entre ellos se encuentran algunas especies de interés florístico por su rareza en la Comunidad Autónoma del País Vasco.
La importancia faunística de este embalse se manifiesta por las comunidades de peces, anfibios y aves acuáticas. Determinados encharcamientos en las márgenes someras constituyen puntos de cría muy importantes para anfibios y aves acuáticas. En ellas se ha establecido el Parque Ornitológico de Mendijur, acondicionado con observatorios e itinerarios. El embalse de Ullívarri destaca por constituir el principal núcleo reproductor de anátidas, fochas y ardeidas en la Comunidad Autónoma del País Vasco. Durante, los censos anuales vienen proporcionando contingentes medios cercanos a los 10.000 individuos, si bien en alguna temporada se han aproximado a los 18.000, cifras muy estimables en el contexto español. El grueso de estos efectivos corresponden a focha (Fulica atra), porrón europeo (Aythya ferina), ánade azulón (Anas platyrhynchos) y pato cuchara (Anas clypeata). La importancia del embalse de Urrunaga es menor a este respecto. |
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 |
---|
Rank | Threats and pressures [code] | Pollution (optional) [code] | inside/outside [i|o|b] |
---|
H | A07 | | b |
L | B02.03 | | b |
L | F03.02.01 | | i |
L | G01.01 | | i |
H | H01 | | b |
M | H01.04 | | b |
M | H01.05 | | b |
M | H01.06 | | b |
H | I01 | | b |
H | J02 | | i |
M | J03.01 | | i |
H | A07 | | b |
L | B02.03 | | b |
L | F03.02.01 | | i |
L | G01.01 | | i |
H | H01 | | b |
M | H01.04 | | b |
M | H01.05 | | b |
M | H01.06 | | b |
H | I01 | | b |
H | J02 | | i |
M | J03.01 | | i |
H | A07 | | b |
L | B02.03 | | b |
L | F03.02.01 | | i |
L | G01.01 | | i |
H | H01 | | b |
M | H01.04 | | b |
M | H01.05 | | b |
M | H01.06 | | b |
H | I01 | | b |
H | J02 | | i |
M | J03.01 | | i |
H | A07 | | b |
L | B02.03 | | b |
L | F03.02.01 | | i |
L | G01.01 | | i |
H | H01 | | b |
M | H01.04 | | b |
M | H01.05 | | b |
M | H01.06 | | b |
H | I01 | | b |
H | J02 | | i |
M | J03.01 | | i |
Positive Impacts |
---|
Rank | Activities, management [code] | Pollution (optional) [code] | inside/outside [i|o|b] |
---|
H | A02 | | b |
M | A04.02 | | b |
M | B02 | | b |
L | K02.01 | | i |
H | A02 | | b |
M | A04.02 | | b |
M | B02 | | b |
L | K02.01 | | i |
H | A02 | | b |
M | A04.02 | | b |
M | B02 | | b |
L | K02.01 | | i |
H | A02 | | b |
M | A04.02 | | b |
M | B02 | | b |
L | K02.01 | | i |
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)
No information provided
4.5 Documentation (optional)
No information provided
5. SITE PROTECTION STATUS
Back to top5.1 Designation types at national and regional level (optional):
Code
|
Cover [%]
|
---|
ES00 | 100.00 |
5.2 Relation of the described site with other sites (optional):
Designated at national or regional level:
Type code
|
Site name
|
Type
|
Cover [%]
|
---|
ES99 | Ulibarriko urtegiko buztanak/Colas del embalse de Ulibarri | * | 14.00 |
ES95 | Zadorra ibaia / Río Zadorra | / | 0.00 |
ES95 | Gorbeia | / | 0.00 |
ES95 | Barrundia ibaia / Río Barrundia | / | 0.00 |
5.3 Site designation (optional)
Una zona del lugar es Humedal Ramsar:
http://www.boe.es/buscar/doc.php?id=BOE-A-2002-22546 |
6. SITE MANAGEMENT
Back to top6.1 Body(ies) responsible for the site management:
Organisation: | Diputación Foral de Bizkaia |
Address: | |
Email: | espacios.naturales.protegidos@bizkaia.eus |
Organisation: | Diputación Foral de Álava |
Address: | |
Email: | biodiversidad@araba.eus |
6.2 Management Plan(s):
An actual management plan does exist:
6.3 Conservation measures (optional)
Documentación completa:
http://www.ingurumena.ejgv.euskadi.eus/r49-u95a/es/u95aWar/lugaresJSP/U95aSubmitLugar.do?pk=24&bloque=024 |
7. MAP OF THE SITE
Back to topINSPIRE ID: | |
Map delivered as PDF in electronic format (optional) |
|
SITE DISPLAY