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 | PTCON0058 |
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SITENAME | Ria de Alvor |
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TABLE OF CONTENTS
1. SITE IDENTIFICATION
Back to top1.1 Type
1.2 Site code
1.3 Site name
1.4 First Compilation date
1.5 Update date
1.6 Respondent:
Name/Organisation: | Instituto da Conservação da Natureza e das Florestas, I.P. |
Address: |
|
Email: | icnf@icnf.pt |
1.7 Site indication and designation / classification dates
Date site proposed as SCI: | 1999-06 |
Date site confirmed as SCI: | 2008-03 |
Date site designated as SAC: |
No information provided
|
National legal reference of SAC designation: |
No information provided
|
2. SITE LOCATION
Back to top2.1 Site-centre location [decimal degrees]:
Longitude: | -8.614600 |
Latitude: | 37.140700 |
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
|
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PT15 | Algarve |
2.6 Biogeographical Region(s)
3. ECOLOGICAL INFORMATION
Back to top3.1 Habitat types present on the site and assessment for them
Annex I Habitat types
|
Site assessment
|
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Code
|
PF
|
NP
|
Cover [ha]
|
Cave [number]
|
Data quality
|
A|B|C|D
|
A|B|C
|
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| | | | | | Representativity | Relative Surface | Conservation | Global |
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1110
|
|
| 0
| 0.00
|
| C
| B
| C
| C
|
1130
|
|
| 0
| 0.00
|
| C
| C
| C
| C
|
1140
|
|
| 0
| 0.00
|
| B
| C
| B
| B
|
1150
|
|
| 0
| 0.00
|
| B
| B
| B
| B
|
1160
|
|
| 0
| 0.00
| M
| B
| B
|
|
|
1210
|
|
| 0
| 0.00
|
| D
|
|
|
|
1310
|
|
| 0
| 0.00
|
| B
| C
| B
| B
|
1320
|
|
| 0
| 0.00
|
| B
| C
| B
| B
|
1410
|
|
| 0
| 0.00
|
| B
| B
| B
| B
|
1420
|
|
| 0
| 0.00
|
| A
| B
| A
| A
|
1430
|
|
| 0
| 0.00
|
| B
| C
| B
| B
|
1510
|
|
| 0
| 0.00
|
|
| C
|
|
|
2110
|
|
| 0
| 0.00
|
| D
|
|
|
|
2120
|
|
| 0
| 0.00
|
| C
| C
| C
| C
|
2130
|
|
| 0
| 0.00
|
| B
| C
| B
| B
|
2230
|
|
| 0
| 0.00
|
| B
| C
| B
| B
|
6420
|
|
| 0
| 0.00
|
|
|
|
|
|
92D0
|
|
| 0
| 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
- 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
|
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N05 | 1.00 |
N17 | 2.00 |
N09 | 3.00 |
N03 | 20.00 |
N01 | 1.00 |
N23 | 14.00 |
N04 | 10.00 |
N02 | 30.00 |
N08 | 10.00 |
N10 | 1.00 |
N06 | 2.00 |
N15 | 4.00 |
N07 | 2.00 |
Total Habitat Cover | 100 |
---|
Other Site Characteristics
Este sítio integra um sistema lagunar costeiro resultante da confluência de quatro ribeiras provenientes da encosta sul da Serra de Monchique que aqui desaguam.
A parte central, que equivale aproximadamente a um terço da área do Sítio, é essencialmente agrícola, com a presença de culturas hortícolas, pomares de regadio de citrinos e pomares de sequeiro de amendoeiras e figueiras. Na sua extremidade sul alberga ainda uma larga área para criação extensiva de gado bovino.
Em direcção a montante a influência da maré e da salinidade vai-se reduzindo, possibilitando o aparecimento de vegetação ripícola. Existe alguma sobreposição com o Aproveitamento Hidroagrícola de Alvor. |
4.2 Quality and importance
O Sítio integra o mais importante complexo estuarino (1130) do barlavento algarvio, que resulta da confluência da ribeira de Odiáxere e do rio de Alvor (alimentado pelas ribeiras do Farelo e Torre), provenientes da encosta sul da Serra de Monchique e que aqui desaguam. O vasto complexo da ria do Alvor (1160, 1150*), que é protegido da acção do oceano por um importante cordão dunar onde se destacam as dunas cinzentas com matos camefíticos dominados por Crucianella maritima (2130*), constitui um espaço propício ao crescimento de peixe jovem e respectivas larvas, de crustáceos e demoluscos.
O Sítio alberga numerosos habitats de salgados, incluindo bancos de areia permanentemente submersos (1110) e lodaçaisou areais (1140) com pradarias, outrora bastante mais extensas, de Zostera noltii. De realçar igualmente as formaçõestípicas de sapal, como os juncais (1410), as comunidades da Sarcocornietea fruticosae (1420), os matos halonitrófilosda Pegano-Salsoletea (1430) e a vegetação vivaz e anual de sapais secos e salinas, áreas onde frequentemente se verifica uma forte ascensão de sais por capilaridade (1510).
Em relação à flora, são de registar para o Sítio as ocorrências dos endemismos lusitanos Linaria algarviana e Thymus camphoratus, preferencialmente sobre solos arenosos, e do endemismo ibérico Limonium lanceolatum, próprio de terrenossalgados, principalmente em zonas de sapal alto.
Em relação à flora, são de registar para o Sítio a ocorrência do endemismo lusitano Linaria algarviana, preferencialmente sobre solos arenosos, e do endemismo ibérico Limonium lanceolatum, próprio de terrenos salgados, principalmente em zonas de sapal alto. |
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 |
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Rank | Threats and pressures [code] | Pollution (optional) [code] | inside/outside [i|o|b] |
---|
M | C01.01 | | i |
M | D05 | | i |
M | E01 | | i |
M | F01 | | i |
M | G01.01 | | i |
M | G05.01 | | i |
M | H01.05 | | i |
M | J02.02.02 | | i |
M | J02.12 | | i |
M | K01.02 | | i |
M | K02.02 | | i |
Positive Impacts |
---|
Rank | Activities, management [code] | Pollution (optional) [code] | inside/outside [i|o|b] |
---|
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)
Plano Sectorial da Rede Natura 2000 em http://www.icnf.pt/portal/naturaclas/rn2000/p-set/q-e
Relatório Nacional de aplicação da Directiva Habitats 2007-2012, em http://www.icnf.pt/portal/naturaclas/rn2000/dir-ave-habit/rel-nac/rel-nac-07-12 |
5. SITE PROTECTION STATUS
Back to top5.1 Designation types at national and regional level (optional):
Code
|
Cover [%]
|
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PT00 | 100.00 |
5.2 Relation of the described site with other sites (optional):
No information provided
5.3 Site designation (optional)
No information provided
6. SITE MANAGEMENT
Back to top6.1 Body(ies) responsible for the site management:
Organisation: | Instituto da Conservação da Natureza e das Florestas, I.P. |
Address: | |
Email: | icnf@icnf.pt |
6.2 Management Plan(s):
An actual management plan does exist:
|
Yes
| |
| No, but in preparation |
X | No |
6.3 Conservation measures (optional)
No information provided
7. MAP OF THE SITE
Back to topINSPIRE ID: | |
Map delivered as PDF in electronic format (optional) |
|
SITE DISPLAY