Database release:
SDF
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)

TABLE OF CONTENTS

1. SITE IDENTIFICATION

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1.1 Type

B

1.2 Site code

MT0000021

1.3 Site name

L-Inhawi tal-Imgiebah u tal-Mignuna

1.4 First Compilation date

2004-04

1.5 Update date

2012-09

1.6 Respondent:

Name/Organisation:
Address:               
Email:natura2000@mepa.org.mt
Date site proposed as SCI:2004-04
Date site confirmed as SCI:2008-03
Date site designated as SAC: No data
National legal reference of SAC designation: No data

2. SITE LOCATION

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2.1 Site-centre location [decimal degrees]:

Longitude:14.386100
Latitude:35.965600

2.2 Area [ha]

176.4000

2.3 Marine area [%]

0.0000

2.4 Sitelength [km]:

0.00

2.5 Administrative region code and name

NUTS level 2 code Region Name
MT00Malta

2.6 Biogeographical Region(s)

Mediterranean (100.00 %)

3. ECOLOGICAL INFORMATION

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3.1 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
      RepresentativityRelative SurfaceConservationGlobal
1240  info      14.89  0.00 
1510  info      0.00 
5330  info      41.49  0.00 
8210  info      0.00 
92D0  info      1.06  0.00 
9320  info      8.47  0.00 
9340  info      0.62  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

Species Population in the site Site assessment
G Code Scientific Name S NP T Size Unit Cat. D.qual. A|B|C|D A|B|C
      MinMax  Pop.Con.Iso.Glo.
P4102Anacamptis urvilleana       
R1293Elaphe situla       
P4114Linaria pseudolaxiflora       
  • 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
     MinMax C|R|V|PIVVABCD
Allium melitense               
Anthemis urvilleana               
Aphaenogaster sicula               
Aphelia amplana f. valletai               
Aplocnemus pectinatus               
Arcyria incarnata               
Arcyria minuta               
Armadillidium schmalfussi               
Atractylis cancellata               
Ballota nigra               
Bathytropa schembrii               
Boletus calopus               
Calamobius filum               
Carlina involucrata               
Centaurea melitensis               
Ceratonia siliqua               
Cernuella caruanae               
Chiliadenus bocconei               
Cistus creticus               
Coletina maggii               
Convolvulus oleifolius               
Crataegus azarolus               
Crataegus monogyna               
Craterium leucocephalum               
Craterium rubronodum               
Crepidotus amygdalosporus               
Ctenoscia dorsalis               
Cynaeda dentalis               
Danacea nigripalpis               
Danaus chrysippus               
Darniella melitensis               
Daucus rupestris               
Deroceras golcheri               
Diachea leucopodia               
Discoglossus pictus pictus               
Euphorbia melitensis               
Gladiolus dubius               
Glomeris distichella               
Gymnochiromyia fallax               
Helvella crispa               
Hohenwartiana howhenwarti               
Idaea elongaria               
Inonotus cuticularis               
Inonotus indicus               
Iris pseudopumila               
Juncus subulatus               
Lauria cylindrica               
Lehmannia melitensis               
Leocarpus fragilis               
Leptothorax rabaudi               
Limonium melitense               
Limonium zeraphae               
Linum bienne               
Lycium intricatum               
Marmorana melitensis               
Marrubium vulgare               
Matthiola incana subsp. melitensis               
Medicago rigidula               
Muticaria macrostoma macrostoma               
Muticaria macrostoma scalaris               
Ochthebius celatus               
Olea europaea               
Ononis natrix subsp. ramosissima               
Orobanche muteli f. melitensis               
Parophonus hispanus               
Periploca angustifolia               
Phagnalon graecum subsp. ginzbergeri               
Phalaris truncata               
Phaleria bimaculata               
Physarum cinereum               
Physarum echinosporum               
Physarum nutans               
Physarum viride               
Pinus halepensis               
Pistacia lentiscus               
Porcellio obsoletus               
Proatelura pseudolepisma               
Puerphorus olbiadactylus               
Punica granatum               
Putoria calabrica               
Quercus ilex               
Reicheira italica               
Rhagadiolus stellatus               
Rhamnus oleoides               
Romulea melitensis               
Satureja microphylla               
Sedum caeruleum               
Stropharia coronilla               
Tamarix africana               
Tetralicia ericae               
Thymus capitatus               
Tilloidea transversalis               
Tricholoma scalputarum               
Trifolium lappaceum               
Triglyphothrix lanuginosum               
Trochoidea spratti s.l.               
Typha domingensis               
Urginea pancration               
Vitrea sp. nov.               
Xerocomus chrysenteron               
  • 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

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4.1 General site character

Habitat class % Cover
N2313.00
N0515.00
N1520.00
N042.00
N0850.00

Total Habitat Cover

100

Other Site Characteristics

This is one of the largest single sites in the Maltese Islands nominated as a Special Area of Conservation. It is essentially characterised by coralline limestone outcrops surrounded by steppes based upon blue clay, which form clay slopes.The slopes are characterised by a mosaic of two main habitats, calcareous rocky slopes with chasmophytic vegetation and vegetated sea cliffs with endemic Limonium melitensis, where the chasmophytic vegetation is dominant. The plateaux on the other hand are dominated by another mosaic of two habitat types, pre-desert scrub and Mediterranean salt steppe, where the pre-desert scrub is dominant. A permanent spring is found at Ghajn Hadid. This gives rise to a relatively humid environment owing to the water-retaining abilities of the abundant exposed blue clay in the area. In view of this, a good proportion of the area is also agricultural.Beneath the clay slopes, in the small bay at L-Imgiebah is a small sandy beach, Ir-Ramla ta' l-Imgiebah.

4.2 Quality and importance

The area houses a variety of habitat types, including clay slope steppes, labiate garrigues based on Thymus capitatus, an old forest remnant based upon Quercus ilex, cliffs and boulder screes with various endemic species, native Tamarix africana stands and temporary Mediterranean ponds. The cliff and boulder scree communities are mostly typified by a community based upon the endemic Darniella melitensis; the rare endemic Matthiola incana subsp. melitensis; the endemic Limonium melitensis; the Pelago-Maltese endemic Daucus rupestris; and Crucianella rupestris. These communities, continuous with the neighbouring cliffs and boulders at Ix-Xaghra tal-Kortin, represent the only Maltese (s.str.) station for the endemic Matthiola, which is otherwise found exclusively on the island of Gozo. The Maltese populations are visibly different from the Gozitan populations, in being consistently less stocky and succulent, and may require further studies. The Pelago-Maltese endemic Linaria pseudolaxiflora (Annex II, Habitats Directive; Appendix I Bern Convention), and the very rare, legally protected, Lycium intricatum, were also recorded from this area.The garrigue and pre-desert scrub of the whole area is a mosaic based on various species, including the endemic Chiliadenus bocconei; the rare Cistus creticus; Convolvulus oleifolius; Erica multiflora; Euphorbia melitensis; Periploca angustifolia; the very rare Putoria calabrica; and Thymus capitatus.These coastal garrigue and boulder scree communities of the area also house a number of interesting species, including: - the Siculo-Maltese endemic beetle, Danacea nigripalpis; - the rare ant, Triglyphothrix lanuginosum; - the common Siculo-Maltese endemic, Cernuella caruanae; - the localised homopteran Tetralicia ericae, locally monophagous on Erica multiflora; - the endemic Marmorana melitensis, a thermophilic and xeroresistant species known from crevices and rubble walls; - the endemic Trochoidea spratti, a karstic species in crevices and depressions in the rocks with various distinctive forms of great scientific interest; - the vulnerable Ochthebius celatus, known from freshwater pools and slow-flowing waters in the Tal-Mignuna area; - the Siculo-Maltese endemic, protected, still unnamed Vitrea sp., a species found under stones and in leaf litter under garrigue and maquis habitats, and widespread in this area (and the neighbouring area of Selmun).The area between Tal-Mignuna, Il-Harrieqa and Rdum il-Bies, which forms an ecological island composed of coralline limestone separated from the rest of the mainland by clay slopes, represents the only known locality in the Maltese Islands for the very rare endemic Muticaria macrostoma scalaris, a karstic taxon limited to a small area of some 1 km squared.Mediterranean temporary ponds or rock pools also form during the wetter winter months on the limestone-based karstic plateau of the L-Imgiebah and Tal-Mignuna areas.Excluding the 'garrigue', cliffs and agriculture, another important habitat in the area, is characterised by coastal steppes on argillaceous soils, mostly based on Lygeum spartum, Cynara cardunculus and Hedysarum coronarium. These clay slopes support a variety of threatened species, including the rare Centaurea melitensis; the very rare Linum bienne; the very rare Medicago rigidula; the rare Phalaris truncata and the very rare Trifolium lappaceum, for which this site represents the last known locality. These steppes also support some of the finest native stands of Tamarix africana, which species is overall rare in the Maltese Islands.Of particular importance are the clay slopes of Ghajn Hadid, which also harbour an interesting invertebrate fauna, with species as the following: - the rare silverfish Coletina maggii and Proatelura pseudolepisma; - the vulnerable Hohenwartia hohenwarti, a subterranean species living in soil and under stones in argillaceous areas/clay slopes; - the Siculo-Maltese endemic Lehmannia melitensis, a species of indeterminate status, but apparently rare, known from damp microhabitats; - the rare carabid beetle, Parophanus hispanicus, seemingly particular to the Ghajn Hadid area; and - the dipteran Gymnochiromyia fallax, known from humid/freshwater habitats. This species has a restricted distribution in the Mediterranean, known only from Malta, Gozo, Tunisia and the Balearic Islands.Another important habitat type is the forest remnant based on Holm Oak, Quercus ilex, at Il-Ballut in the limits of L-Imgiebah (where 'balluta' is the Maltese vernacular for Holm Oak). This wood is one of the four extant remnants based on this species. The area is composed of closed canopy forest, with limited undergrowth due to the shading abilities of the oaks' crown, but rich in undergrowth species, particularly in fungi, myxomycetes and invertebrates. In fact, the species associated with this remnant are often either confined to this copse, or else extremely limited in distribution. A variety of fungi, myxomycetes and invertebrates found at Il-Ballut is listed in Section 3.3. A few examples include: - the fungi Inonotus cuticularis and Tricholoma scalpturatum, both of which are associated with Quercus ilex and confined to this forest remnant in the Maltese Islands; - the myxomycete Physarum echinosporum, confined to the dead wood of Quercus ilex of this area. This is the only record so far for this species in the Mediterranean region; - the rare snail Lauria cylindrica, associated with leaf litter in the forest remnant;the endemic slug of indeterminate status Deroceras golcheri found under wood, stones and other debris in the wooded area; - the rare ant Leptothorax rabaudi, a leaf-litter species with a very limited distribution; - the vulnerable Italo-Maltese endemic carabid beetle Reicheia italica, associated with leaf-litter and/or endogean in the area; and - various woodlice, including the very rare endemic Bathytropa schembrii, a troglobitic species adapted to live in crevices in mud; the saproxylic Porcellio obsoletus, found living under the bark of Quercus ilex; and the humicolous Ctenoscia dorsalis, found in Holm Oak leaf litter.Maquis assemblages based upon Ceratonia siliqua and Olea europaea also occupy part of the area at L-Imgiebah. The Siculo-Maltese endemic millepede Glomeris distichella, found in the oak forest remnant and nearby maquis, is also reported from this area.Note on section: Ecological Information - Habitats Habitats with the code 1510 & 5330 co-occur and hence the % cover was only included next to 5330, which is more dominant. Habitats with the code 1240 & 8210 co-occur and hence the % cover was only included next to 1240, which has an excellent representativity.

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
RankThreats and pressures [code]Pollution (optional) [code]inside/outside [i|o|b]
ME04.01b
LJ01i
MD01.01i
LJ02.05i
LB01.02b
LE01.03i
LG05.01i
LF03.01b
LD01.01b
LF03.02.01b
MI01b
MK04.01b
LG01.02i
LF03.02.03b
HI01i
MG01.03b
HK01.01i
LG02.08i
LE01b
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]
LA04.03i

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

5. SITE PROTECTION STATUS

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6. SITE MANAGEMENT

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6.1 Body(ies) responsible for the site management:

Organisation:Environment and Resources Authority
Address:
Email:natura.2000@era.org.mt

6.2 Management Plan(s):

An actual management plan does exist:

Yes
No, but in preparation
X
No

 

7. MAP OF THE SITE

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INSPIRE ID:MT0000021
Map delivered as PDF in electronic format (optional)
Yes
No

SITE DISPLAY