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 | FR5412005 |
|---|
| SITENAME | Vallée de la Charente moyenne et Seugnes |
|---|
TABLE OF CONTENTS
1. SITE IDENTIFICATION
Back to top1.1 Type
1.2 Site code
1.3 Site name
| Vallée de la Charente moyenne et Seugnes |
1.4 First Compilation date
1.5 Update date
1.6 Respondent:
| Name/Organisation: | Ministère de la Transition écologique - DGALN/DEB/SDET/ET5 |
| Address: |
|
| Email: | en3.en.deb.dgaln@developpement-durable.gouv.fr |
1.7 Site indication and designation / classification dates
| Date site classified as SPA: | 2019-01 |
| National legal reference of SPA designation | https://www.legifrance.gouv.fr/affichTexte.do?cidTexte=JORFTEXT000038021087 |
2. SITE LOCATION
Back to top2.1 Site-centre location [decimal degrees]:
| Longitude: | -0.630560 |
| Latitude: | 45.729720 |
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
|
|---|
| FR53 | Poitou-Charentes |
2.6 Biogeographical Region(s)
3. ECOLOGICAL INFORMATION
Back to top3.1 Habitat types present on the site and assessment for them
No habitat types are reported for the site
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
|
|---|
| N07 | 7.00 |
| N10 | 40.00 |
| N14 | 15.00 |
| N15 | 20.00 |
| N16 | 10.00 |
| N20 | 7.00 |
| N23 | 1.00 |
Total Habitat Cover | 100 |
|---|
Other Site Characteristics
| La vallée inondable du fleuve Charente et d'un de ses principaux affluents - la Seugne - est un système hydrographique planitiaire atlantique à régime annuel de crues hivernales et printanières sur sols argilo-calcaires.
L'ensemble complet des milieux caractéristiques de cet écosystème comprend des forêts alluviales, des prairies inondables et des milieux aquatiques de divers types, auxquels se rajoutent quelques éléments originaux : cuvette tourbeuse de près de 100 hectares et coteaux boisés.
Site régional majeur par l'étendue et la qualité de certains habitats liés aux vallées inondables : frênaie alluviale à Frêne oxyphylle, prairies hygrophiles, mégaphorbiaies eutrophes, cladiaie turficole, eaux courantes eutrophes à mésotrophes, etc.
Comme toutes les vallées alluviales, le site est soumis à de très fortes menaces : intensification agricole avec, dans le cadre de la PAC, transformation des prairies semi-naturelles en cultures céréalières (maïs essentiellement), évolution ayant déjà affecté une partie importante du lit majeur de la Charente.
La monoculture de peupliers est une menace bien réelle, ayant dégradé des secteurs entiers du site.
L'altération de la dynamique fluviale (écrêtage des crues, assèchement estival), dégradation de la qualité des eaux (eutrophisation généralisée), enfoncement estival de la nappe phréatique en raison des pompages agricoles, représentent des menaces supplémentaires.
D'autres milieux, plus ponctuels, souffrent inversement d'une "déprise" : cladiaie en cours de boisement par la Bourdaine (Frangula alnus) et le Saule roux (Salix atrocinerea). |
4.2 Quality and importance
| Ce site répond à 6 critères d'importance internationale.
Dans la liste des espèces inventoriées, 21 appartiennent à l'annexe 1, 25 sont protégées, 15 sont menacées au niveau national et 17 espèces nicheuses sont menacées dans la région du Poitou-Charentes. Quatre d'entre elles répondent au moins à un critère d'importance internationale. |
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 | A01 | | b |
| H | A02 | | b |
| M | A08 | | b |
| H | A09 | | b |
| M | A10.01 | | b |
| H | B02 | | i |
| M | D01 | | b |
| M | D03.02 | | b |
| L | F03 | | b |
| M | G01 | | i |
| H | G05.11 | | b |
| M | H01 | | b |
| M | J02 | | b |
| L | J03.02 | | i |
| M | K03.05 | | b |
| Positive Impacts |
|---|
| Rank | Activities, management [code] | Pollution (optional) [code] | inside/outside [i|o|b] |
|---|
| H | A03.02 | | i |
| H | B02.05 | | i |
| L | G05.06 | | b |
| H | K01.04 | | b |
| L | M01 | | 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)
| CAUPENNE, M.2000a. Recensement des colonies de hérons arboricoles nicheurs de Charente-Maritime en 2000 La Garzette 3 : 22-34.
CAUPENNE, M.2000b. Bilan de la nidification 1999 de 4 espèces patrimonilaes des marais charentais : Cigogne blanche, Héron pourpré, Spatule blanche, Guifette noire. Rapport LPO.
CAUPENNE, M. 2001. Bilan 2001 de la reproduction de la Cigogne blanche en Charente-Maritime. Rapport LPO/Communauté d'agglomération du Pays Rochefortais. 11 pp.
JOURDE, PH. 1996. Inventaire faunistique du Val de Charente et des Seugnes.
Programme LIFE-NATURA 2000 Site n°3. Rapport LPO/UE/DIREN Poitou-Charentes/ASF. 54 pp.
JOURDE, PH. En préparation. Statut de la Mouette rieuse Charente-Maritime : nouvelles données de reproduction continentale. La Garzette 4. |
5. SITE PROTECTION STATUS
Back to top5.1 Designation types at national and regional level (optional):
|
Code
|
Cover [%]
|
|---|
| FR00 | 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: | LPO France |
| Address: | |
| Email: | |
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 top
No information provided
SITE DISPLAY