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 | FR7300897 |
|---|
| SITENAME | Vallée et coteaux de la Lauze |
|---|
TABLE OF CONTENTS
1. SITE IDENTIFICATION
Back to top1.1 Type
1.2 Site code
1.3 Site name
| Vallée et coteaux de la Lauze |
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: | 1998-08 |
| Date site confirmed as SCI: | 2016-12 |
| Date site designated as SAC: | 2017-01 |
| National legal reference of SAC designation: | https://www.legifrance.gouv.fr/affichTexte.do?cidTexte=JORFTEXT000033995622&dateTexte= |
2. SITE LOCATION
Back to top2.1 Site-centre location [decimal degrees]:
| Longitude: | 0.697330 |
| Latitude: | 43.455470 |
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
|
|---|
| FR62 | Midi-Pyrénées |
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
|
|---|
|
Code
|
PF
|
NP
|
Cover [ha]
|
Cave [number]
|
Data quality
|
A|B|C|D
|
A|B|C
|
|---|
| | | | | | | Representativity | Relative Surface | Conservation | Global |
|---|
4090
|
|
| 36.03
| 0.00
| G
| D
|
|
|
|
| 5130
|
|
| 11.69
| 0.00
| G
| B
| C
| B
| B
|
| 6210
|
X
|
| 363.82
| 0.00
| G
| B
| C
| B
| B
|
| 6220
|
X
|
| 6.14
| 0.00
| G
| B
| C
| B
| B
|
| 6430
|
|
| 0.22
| 0.00
| G
| D
|
|
|
|
| 6510
|
|
| 267.12
| 0.00
| G
| B
| 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)
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
| A229 | Alcedo atthis (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
| P
| | Anacamptis coriophora |
|
| 10
|
| localities
| P
|
|
| X
|
|
| X
|
| B
| A224 | Caprimulgus europaeus |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
| R
| | Chalcides striatus (Cuvier, 1829) |
|
| 2
|
| localities
| P
|
|
| X
|
| X
|
|
| B
| A082 | Circus cyaneus |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
| B
| A236 | Dryocopus martius |
|
|
|
| i
| P
|
|
|
|
| X
|
|
| P
| | Echinospartum horridum (Vahl) Rothm. |
|
| 4
|
| localities
| P
|
|
|
|
|
| X
|
| I
| | Glaucopsyche arion (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
|
|
| X
|
|
| R
| | Hierophis viridiflavus |
|
|
|
| i
| P
| X
|
|
|
| X
|
|
| R
| | Lacerta bilineata |
|
| 2
|
| i
| P
| X
|
|
|
| X
|
|
| B
| A338 | Lanius collurio Linnaeus, 1758 |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
| B
| A246 | Lullula arborea (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
| B
| A073 | Milvus migrans (Boddaert, 1783) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
| P
| | Nigella gallica |
|
| 2
|
| localities
| P
|
|
| X
|
|
| X
|
| A
| | Pelodytes punctatus (Daudin, 1802) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
| B
| A072 | Pernis apivorus (Linnaeus, 1758) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
| R
| 1256 | Podarcis muralis |
|
|
|
| i
| P
| X
|
|
|
| X
|
|
| A
| | Triturus helveticus (Razoumowsky, 1789) |
|
|
|
| i
| P
|
|
| X
|
| X
|
|
| A
| 1174 | Triturus marmoratus (Latreille, 1800) |
|
|
|
| i
| P
| X
|
| X
|
| X
|
|
| P
| | Tulipa raddii |
|
|
| 1
| localities
| P
|
|
| X
|
| X
| X
|
| I
| | Zygaena occitanica (Villers, 1789) |
|
|
|
| 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
|
|---|
| N08 | 2.00 |
| N09 | 10.00 |
| N10 | 21.00 |
| N14 | 10.00 |
| N15 | 25.00 |
| N16 | 26.00 |
| N20 | 2.00 |
| N23 | 4.00 |
| N08 | 2.00 |
| N09 | 10.00 |
| N10 | 21.00 |
| N14 | 10.00 |
| N15 | 25.00 |
| N16 | 26.00 |
| N20 | 2.00 |
| N23 | 4.00 |
Total Habitat Cover | 200 |
|---|
Other Site Characteristics
| Au niveau géologique, la petite région de l'Astarac se présente comme un millefeuilles de dalles calcaires entrecoupées de couches marneuses (alluvions anciennes), découpé en coteaux par les rivières principales s'écoulant du Sud au Nord, comme la Lauze, ces coteaux étant eux-même re-découpés transversalement par les talwegs tracés par les cours d'eau affluents de ces rivières.
Le profil dissymétrique de ces coteaux, très typique, provient quant à lui de la période périglaciaire : le vent dominant d'ouest lié à l'accumulation de neige aux sommets des coteaux crée des corniches de neige soumises ensuite à des mouvements de solifluxion (glissement en masse du sol gorgé d'eau lors du dégel), provoquant un étalement de terres sur le versant Est, et entraînant progressivement une déportation du lit de la rivière vers l'Est. Celle-ci érode alors le versant exposé à l'Ouest, où apparaissent peu à peu des corniches calcaires.
Cette histoire géologique confère aux zones de coteaux un fort caractère répétitif entre vallées différentes et au sein d'une même vallée.
Ce sont les versants Est, érodés par les rivières et le vent d'Ouest, au relief le plus contrasté, et re- découpés par des cours d'eau secondaires, qui présentent une mosaïque de milieux variés et typés, selon que l'on est sur une partie marneuse, calcaire ou alluvionnaire, et en fonction de l'exposition. La vallée de la Lauze est celle du département où le caractère dissymétrique est le plus fort, et l'on y observe une forte variété de formations végétales et d'occupation du sol. Bois, landes sèches, prairies et cultures s'imbriquent en mosaïque.
Milieux à orchidées remarquables : tendance à la fermeture du milieu par recul du pâturage pour les pentes fortes ; tendance à la mise en culture des prairies humides par recul de l'élevage. |
4.2 Quality and importance
| Coteaux asymétriques du Haut-Gers occupés par un maillage bocager plus faiblement représenté dans le fond des vallées alluviales.
Etagement original de la végétation qui s'organise d'Est en Ouest sur les vallées selon l'ordre suivant :
- bois landes sec à chênes pubescents et garrides à Genista scorpius, Spartium junceum, Lavandula latifolia, Echinospartum horridum (Genista horrida)
- bas de versants plus humides sur sols de boulbennes en prairies ou boisées de chênes sessiles
- prairies bocagères et cultures en bords de rivières et sur le versant ouest
- boisements frais (chênes-hêtres) sur la pente du coteau ouest. |
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 | A02.03 | | b |
| H | A03.01 | | b |
| M | A03.03 | | b |
| M | A04.01 | | b |
| H | A04.03 | | b |
| M | A07 | | b |
| M | A08 | | b |
| H | A10.01 | | b |
| M | B01 | | b |
| M | B02.02 | | b |
| M | B02.04 | | b |
| L | F04 | | b |
| L | G01.03 | | b |
| L | G02.10 | | b |
| L | G05.06 | | b |
| M | H01.05 | | b |
| L | I01 | | b |
| L | J02.01 | | b |
| L | J02.03 | | b |
| L | J02.05 | | b |
| L | J02.06 | | b |
| L | J02.13 | | b |
| L | K01.01 | | b |
| L | K03.05 | | b |
| H | A01 | | b |
| H | A02.03 | | b |
| H | A03.01 | | b |
| M | A03.03 | | b |
| M | A04.01 | | b |
| H | A04.03 | | b |
| M | A07 | | b |
| M | A08 | | b |
| H | A10.01 | | b |
| M | B01 | | b |
| M | B02.02 | | b |
| M | B02.04 | | b |
| L | F04 | | b |
| L | G01.03 | | b |
| L | G02.10 | | b |
| L | G05.06 | | b |
| M | H01.05 | | b |
| L | I01 | | b |
| L | J02.01 | | b |
| L | J02.03 | | b |
| L | J02.05 | | b |
| L | J02.06 | | b |
| L | J02.13 | | b |
| L | K01.01 | | b |
| L | K03.05 | | b |
| Positive Impacts |
|---|
| Rank | Activities, management [code] | Pollution (optional) [code] | inside/outside [i|o|b] |
|---|
| H | A03.02 | | b |
| H | A04.02 | | b |
| H | B02.05 | | b |
| H | B06 | | b |
| H | A03.02 | | b |
| H | A04.02 | | b |
| H | B02.05 | | b |
| H | B06 | | 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 | 200 |
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 [%]
|
|---|
| 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: | ADASEA 32 |
| Address: | |
| Email: | |
6.2 Management Plan(s):
An actual management plan does exist:
6.3 Conservation measures (optional)
| Document d'objectifs, validé en juin 2005, réalisé par l'ADASEA du Gers. Mise à jour du formulaire standard des données, suite au document d'objectifs, réalisée par l'ADASEA du Gers. |
7. MAP OF THE SITE
Back to top
No information provided
SITE DISPLAY