For Special Protection Areas (SPA), Proposed Sites for Community Importance (pSCI),
Sites of Community Importance (SCI) and for Special Areas of Conservation (SAC)
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
Les méandres de la Seine, en limite nord-ouest de la région présentent des versants d'orientation, de pente et de substrat variables et contrastés.
Une partie du site a été acquise par la région Ile-de-France via l'Agence des Espaces Verts (Bois du Parc, landes de la boucle de Moisson).
La principale menace porte sur l'envahissement naturel, par les ligneux, des landes et des pelouses (fermeture des milieux).
4.2 Quality and importance
Le site est principalement contitué de coteaux calcaires où se développent des pelouses et des boisements calcicoles. Les formations végétales acidiphiles sèches (landes et pelouses), d'un grand intérêt phytoécologique sont situées sur les terrasses alluviales de la boucle de Moisson. Ce site présente des habitats rares en Ile-de-France ainsi que des espèces végétales en limite de répartition biogéographique.
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]
M
I02
i
H
A04.03
i
M
E01
o
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)
Type
[%]
Public
National/Federal
0
State/Province
0
Local/Municipal
0
Any Public
0
Joint or Co-Ownership
0
Private
0
Unknown
0
sum
100
4.5 Documentation (optional)
DEHONDT F., 1995 : Coteaux de la Roche-Guyon. Etude préalable à la création d'une réserve naturelle. Université Paris XI-Orsay. 146 p.
ECOTHEME, 1997 : Inventaire des sites Natura 2000 des coteaux et boucle de la Seine. PNR du Vexin français.