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 | FR9301533 |
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SITENAME | L'Asse |
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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: | 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 proposed as SCI: | 2006-01 |
Date site confirmed as SCI: | 2006-07 |
Date site designated as SAC: | 2014-02 |
National legal reference of SAC designation: | http://www.legifrance.gouv.fr/affichTexte.do?cidTexte=JORFTEXT000028558248&fastPos=70&fastReqId=2004270537&categorieLien=id&oldAction=rechTexte |
Explanation(s): | MAJ 2012.12 : intégration données biologiques du DOCOB. # MAJ 2016.06 : ajout du Loup. # MAJ 2017-04 : ajout E1084 E1087. # MAJ 2017-11 : ajout H7230 + corr cotations divers hab. # MAJ 2021-07 ajout tourterelle des bois |
2. SITE LOCATION
Back to top2.1 Site-centre location [decimal degrees]:
Longitude: | 6.367780 |
Latitude: | 43.948060 |
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
|
---|
FR82 | Provence-Alpes-Côte d'Azur |
2.6 Biogeographical Region(s)
Alpine
| (0.70 %) |
Mediterranean
| (99.30 %) |
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
|
|
| 0.01
| 0.00
| P
| C
| C
| B
| C
|
3220
|
|
| 106.1
| 0.00
| M
| B
| C
| A
| B
|
3230
|
|
| 0.01
| 0.00
| P
| C
| C
| B
| B
|
3240
|
|
| 15.55
| 0.00
| M
| C
| C
| A
| B
|
3250
|
|
| 426.7
| 0.00
| M
| A
| B
| A
| A
|
3270
|
|
| 0.01
| 0.00
| P
| C
| C
| A
| B
|
3280
|
|
| 35.91
| 0.00
| M
| B
| B
| A
| A
|
3290
|
|
| 218.9
| 0.00
|
| B
| B
| A
| B
|
4060
|
|
| 142.5
| 0.00
| M
| B
| C
| B
| B
|
4090
|
|
| 68.8
| 0.00
| M
| B
| C
| A
| A
|
5110
|
|
| 290
| 0.00
| M
| B
| C
| A
| B
|
5210
|
|
| 23.42
| 0.00
| M
| C
| C
| B
| B
|
6110
|
X
|
| 1.94
| 0.00
| M
| C
| C
| A
| B
|
6170
|
|
| 8.45
| 0.00
| M
| C
| C
| C
| C
|
6210
|
|
| 765.5
| 0.00
| M
| B
| C
| B
| B
|
6230
|
X
|
| 31.72
| 0.00
| M
| C
| C
| C
| C
|
6410
|
|
| 5
| 0.00
| M
| C
| C
| B
| B
|
6420
|
|
| 3.51
| 0.00
| M
| C
| C
| B
| C
|
6430
|
|
| 5.24
| 0.00
| P
| C
| C
| B
| B
|
6510
|
|
| 892.4
| 0.00
| M
| A
| C
| B
| B
|
6520
|
|
| 1094.5
| 0.00
|
| B
| C
| B
| B
|
7220
|
X
|
| 0.27
| 0.00
| M
| C
| C
| C
| C
|
7230
|
|
| 0.37
| 0.00
| M
| B
| C
| B
| B
|
7240
|
X
|
| 0.1
| 0.00
| P
| A
| C
| A
| A
|
8120
|
|
| 0.12
| 0.00
| M
| C
| C
| A
| C
|
8130
|
|
| 1061
| 0.00
| M
| A
| C
| A
| A
|
8160
|
X
|
| 42.8
| 0.00
| M
| B
| B
| A
| B
|
8210
|
|
| 75.53
| 0.00
| M
| B
| C
| A
| B
|
8240
|
X
|
| 70.83
| 0.00
| M
| A
| C
| A
| A
|
9150
|
|
| 229.1
| 0.00
| M
| A
| C
| B
| B
|
9180
|
X
|
| 34.43
| 0.00
| M
| B
| C
| A
| A
|
91E0
|
X
|
| 18.76
| 0.00
| M
| B
| C
| B
| B
|
92A0
|
|
| 270.4
| 0.00
| M
| A
| C
| B
| A
|
9340
|
|
| 42
| 0.00
| M
| C
| C
| B
| B
|
- 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)
Species | Population in the site | Motivation |
---|
Group
|
CODE
|
Scientific Name
|
S
|
NP
|
Size
|
Unit
|
Cat.
|
Species Annex
|
Other categories
|
---|
| | | | | Min | Max | | C|R|V|P | IV | V | A | B | C | D |
---|
B
| A210 | Streptopelia turtur |
|
|
|
|
| R
|
|
| X
|
| X
|
|
P
| | Typha minima |
|
|
|
| i
| P
|
|
|
|
| X
|
|
- 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
|
---|
N05 | 2.00 |
N06 | 2.00 |
N07 | 1.00 |
N08 | 20.00 |
N09 | 10.00 |
N10 | 10.00 |
N11 | 5.00 |
N15 | 5.00 |
N16 | 24.00 |
N17 | 10.00 |
N22 | 10.00 |
N23 | 1.00 |
Total Habitat Cover | 100 |
---|
Other Site Characteristics
Rivière Asse et ses principaux affluents (Asse de Blieux, Asse de Tartonne, Asse de Moriez, Estoublaisse), élargie sur sa partie amont aux bassins versants (pour partie). Influences méditerranéenne à l'aval et montagnarde à l'amont.
- prélèvements d'eau à usage agricole (irrigation) lors des périodes d'étiage, pouvant générer des assecs prolongés problématiques pour les poissons.
- reconversion des prairies en cultures.
- arasement des ripisylves.
- qualité des eaux (pollutions diverses).
- altérations ponctuelles du lit mineur : extraction de matériaux, décharges sauvages, remblais.
- développement de plantes exogènes envahissantes, telles que la Jussie. |
4.2 Quality and importance
L'Asse et ses affluents constituent un ensemble de cours d'eau d'un grand intérêt écologique. La richesse de ce site, caractérisée par un nombre élevé d'habitats naturels et d'espèces d'intérêt communautaire, est principalement liée :
- à l'étendue du site et la diversité des conditions physiques présentes (altitude, exposition, géologie, climat) permettant la présence d'un grand nombre d'habitats naturels et d'espèces remarquables ;
- à son fonctionnement naturel (absence de grand aménagement hydraulique) ;
- à ses milieux globalement peu artificialisés et ses eaux peu polluées, permettant le développement d'un peuplement piscicole de qualité ;
- au caractère encore relativement traditionnel des activités humaines s'y exerçant.
Grâce au fonctionnement encore naturel de la rivière (récurrence des crues), les systèmes pionniers sont bien représentés. Ils sont caractérisés par une grande instabilité et par le développement de végétaux pourvus de puissantes racines, tels que la Glaucière jaune. De hautes ripisylves sont bien développées en moyenne et basse Asse jusqu'à la confluence durancienne. Les prairies de fauche sont bien représentées à l'amont, notamment sur l'Asse de Blieux.
Concernant la faune, le site accueille de nombreuses espèces de chiroptères, notamment le Petit Rhinolophe dont plusieurs colonies de reproduction sont présentes dans la vallée de l'Estoublaisse. L'Apron du Rhône, poisson fortement menacé de disparition, est présent à l'extrême aval du cours d'eau. L'agrion de mercure présente de fortes densités dans les stations situées dans lit majeur aval de l'Asse, qui constituent certainement une des plus importantes populations de la région PACA. |
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 | A01 | | i |
H | A09 | | i |
M | H01 | | i |
H | I01 | | i |
M | J02.12 | | i |
M | J03.02 | | 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)
No information provided
5. SITE PROTECTION STATUS
Back to top5.1 Designation types at national and regional level (optional):
Code
|
Cover [%]
|
---|
FR05 | 1.00 |
FR15 | 18.00 |
5.2 Relation of the described site with other sites (optional):
Designated at national or regional level:
Type code
|
Site name
|
Type
|
Cover [%]
|
---|
FR05 | APB rivière Asse, biotope de l'Apron | * | 1.00 |
FR15 | Verdon | * | 18.00 |
5.3 Site designation (optional)
No information provided
6. SITE MANAGEMENT
Back to top6.1 Body(ies) responsible for the site management:
Organisation: | Parc Naturel Régional du Verdon |
Address: | |
Email: | |
6.2 Management Plan(s):
An actual management plan does exist:
6.3 Conservation measures (optional)
charte du PNR Verdon (pour partie) |
7. MAP OF THE SITE
Back to top
No information provided
SITE DISPLAY