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Year of most recent IBA criteria assessment: 2011

Populations of IBA trigger species

Species	Current IUCN Red List Category	Season	Year(s) of estimate	Population estimate	IBA Criteria Triggered
Rock Partridge Alectoris graeca	NT	breeding	2002-2010	5-10 breeding pairs	C6
European Nightjar Caprimulgus europaeus	LC	breeding	2002-2010	500-800 breeding pairs	B2, C6
Eurasian Scops-owl Otus scops	LC	breeding	2006-2010	120-200 breeding pairs	B2
Eurasian Eagle-owl Bubo bubo	LC	breeding	2004-2011	9-16 breeding pairs	B2, C6
Short-toed Snake-eagle Circaetus gallicus	LC	breeding	2000-2010	5-10 breeding pairs	B2, C6
Griffon Vulture Gyps fulvus	LC	breeding	2000-2010	90-100 breeding pairs	C6
Woodlark Lullula arborea	LC	breeding	2002-2010	1,100-1,500 breeding pairs	B2, C6
Tawny Pipit Anthus campestris	LC	breeding	1995-2010	20-30 breeding pairs	C6
Rock Bunting Emberiza cia	LC	breeding	2002-2010	1,600-1,800 breeding pairs	B2
Ortolan Bunting Emberiza hortulana	LC	breeding	2000-2010	90-130 breeding pairs	C6

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

Threats to the site (pressure)
Threat Level 1	Threat Level 2	Timing	Scope	Severity	Result
Energy production and mining	renewable energy	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Human intrusions and disturbance	recreational activities	happening now	some of area/population (10-49%)	very rapid to severe deterioration	high
Natural system modifications	other ecosystem modifications	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Residential and commercial development	housing and urban areas	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Residential and commercial development	tourism and recreation areas	likely in short term (within 4 years)	small area/few individuals (<10%)	very rapid to severe deterioration	low
Transportation and service corridors	utility & service lines	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high

Condition of habitat (state)
Habitat	Habitat Detail	Reference Area (ha)	Actual Area (ha)	% of habitat remaining	% of carrying capacity (overall)	Result
Grassland	Steppes and dry calcareous grassland	0	0	good (> 90%)	poor (40-69%)	unfavourable

Condition of key/trigger populations (state)
Scientific	Common	TargetPop	ActualPop	Units	Remaining	Result
Circaetus gallicus	Short-toed Snake-eagle	7	6	breeding pairs	86	near favourable
Emberiza hortulana	Ortolan Bunting	110	5	breeding pairs	5	very unfavourable

Conservation actions taken at site (response)
Conservation Designation	Management Planning	Conservation Action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A management plan exists but it is out of date or not comprehensive	Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity	medium

For more information about IBA monitoring please click here

Protected Area	Designation	Area (ha)	Relationship with IBA	Overlap with IBA (ha)
Žirje - Junčja jama	naravni spomenik	1	protected area overlaps with site	0
Žirje - Belinca jama	naravni spomenik	1	protected area overlaps with site	0
Vrhe nad Rašo	Site of Community Importance (Habitats Directive)	572	protected area overlaps with site	0
Vrhe nad Rašo	posebno varstveno območje	572	protected area overlaps with site	0
Vrhe na Vipavskem	ekološko pomembno območje	572	protected area overlaps with site	0
Vremščica - vrh in pobočje	naravni spomenik	69	protected area overlaps with site	0
Vremščica - vrh in pobočja	naravni spomenik	166	protected area contained by site	0
Vremscica	Landscape Park	93	protected area contained by site	93
The Karst	UNESCO-MAB Biosphere Reserve	60,193	protected area overlaps with site	0
Sveto - lipa pred vaško cerkvijo	naravni spomenik	1	protected area overlaps with site	0
Štanjel - Kopriva - nahajališče kraškega marmorja	naravni spomenik	0	protected area contained by site	0
Štanjel	krajinski park	29	protected area contained by site	0
Slavnik - vrh in pobočja	naravni spomenik	222	protected area contained by site	0
Skocjanske Jame	Ramsar Site, Wetland of International Importance	305	protected area contained by site	305
Škocjan Caves	World Heritage Site (natural or mixed)	413	protected area overlaps with site	413
Sežana - Ulčarjeva jama v Paredu	naravni spomenik	1	protected area overlaps with site	0
Sežana - Škamprlova ali Škamprletova jama	naravni spomenik	1	protected area overlaps with site	0
Sežana - Sežanski dol z jamami I. in II.	naravni spomenik	3	protected area contained by site	0
Sežana - Orleška ali Tomaškova jama	naravni spomenik	1	protected area overlaps with site	0
Sežana - Koblarska jama	naravni spomenik	1	protected area overlaps with site	0
Sežana - jama v Ukmarjevem dolu ob Bazoviški cesti	naravni spomenik	2	protected area contained by site	0
Sežana - Jama v partu pri Ogradi	naravni spomenik	1	protected area overlaps with site	0
Sežana - Jama v Golokračini	naravni spomenik	1	protected area overlaps with site	0
Sežana - Jama ob Bazoviški cesti na Trebanjski gmajni	naravni spomenik	1	protected area overlaps with site	0
Sežana - Jama ob Bazoviški cesti na Gropajski gmajni	naravni spomenik	1	protected area overlaps with site	0
Sežana - jama Bukovnik	naravni spomenik	1	protected area overlaps with site	0
Sežana - Čebulcova jama	naravni spomenik	1	protected area overlaps with site	0
Rihemberški grad z okolico	spomenik oblikovane narave	1	protected area overlaps with site	0
Reka (Velika voda)	ekološko pomembno območje	3,380	protected area is adjacent to site	0
Reka	posebno varstveno območje	441	protected area overlaps with site	0
Reka	Site of Community Importance (Habitats Directive)	441	protected area overlaps with site	0
Regijski park Škocjanske jame	regijski park	401	protected area overlaps with site	413
Rakitovec - pečina v Radotah	naravni spomenik	1	protected area overlaps with site	0
Rakitovec - jama pod Gabrkom	naravni spomenik	1	protected area overlaps with site	0
Orlek - Golokratna jama	naravni spomenik	1	protected area overlaps with site	0
Mala jama na Prevali	naravni spomenik	1	protected area overlaps with site	0
Lokvica, Jama pod Pečinko	naravni spomenik	1	protected area overlaps with site	0
Lokev pri Divači - Jama Vilenica	naravni spomenik	1	protected area overlaps with site	0
Lokev pri Divači - Jama pod Gaugami	naravni spomenik	1	protected area overlaps with site	0
Lipica - Lipiško brezno	naravni spomenik	0	protected area contained by site	0
Lipica - Lipenjska jama	naravni spomenik	1	protected area overlaps with site	0
Lipica - kamniti gobi	naravni spomenik	1	protected area overlaps with site	0
Kras	ekološko pomembno območje	61,908	protected area overlaps with site	0
Kras	Special Protection Area (Birds Directive)	58,752	protected area overlaps with site	49,845
Kras	posebno varstveno območje	48,041	protected area overlaps with site	0
Kras	Site of Community Importance (Habitats Directive)	48,041	protected area overlaps with site	47,486
Kras	posebno varstveno območje	58,752	protected area overlaps with site	0
Komen - Obršljanski gozd	naravni spomenik	26	protected area contained by site	0
Komen - gozd Draga	naravni spomenik	20	protected area contained by site	0
Komen - gozd Cirje	naravni spomenik	6	protected area contained by site	0
Klanec pri Kozini - lipa pri cerkvi Sv. Petra	naravni spomenik	1	protected area overlaps with site	0
Kazlje - Komihcova jama	naravni spomenik	1	protected area overlaps with site	0
Jama Škrlica	naravni spomenik	1	protected area overlaps with site	0
Jama na Prevali II	naravni spomenik	1	protected area overlaps with site	0
Ivanji Grad - Preserska jama	naravni spomenik	1	protected area overlaps with site	0
Gradišče pri Materiji - Martinjska jama	naravni spomenik	1	protected area overlaps with site	0
Gradišče pri Materiji - jama pod Mavrovcem	naravni spomenik	1	protected area overlaps with site	0
Gorenje - Konjičja jama	naravni spomenik	1	protected area overlaps with site	0
Gabrovica pri Komnu - Lipi pri c. Sv. Petra	naravni spomenik	1	protected area overlaps with site	0
Dolina Vipave	ekološko pomembno območje	6,805	protected area is adjacent to site	0
Dolina Vipave	posebno varstveno območje	5,112	protected area is adjacent to site	0
Dolina Vipave	Site of Community Importance (Habitats Directive)	5,112	protected area is adjacent to site	0
Dolina Branice	Site of Community Importance (Habitats Directive)	6,313	protected area overlaps with site	2,714
Dolina Branice	posebno varstveno območje	6,313	protected area overlaps with site	0
Dolina Branice	ekološko pomembno območje	6,590	protected area overlaps with site	0
Dobravlje- Debela peč	naravni spomenik	1	protected area overlaps with site	0
Divača - Risnik	naravni spomenik	5	protected area overlaps with site	0
Divača - Kačna jama	naravni spomenik	1	protected area overlaps with site	0
Divača - Divaška jama	naravni spomenik	1	protected area overlaps with site	0
Divača - Bukovnik	naravni spomenik	3	protected area contained by site	0
Dane pri Divači - Medjame	naravni spomenik	1	protected area contained by site	0
Dane pri Divači - jama nad Škrinjarco	naravni spomenik	0	protected area contained by site	0
Brestovica pri Povirju - Petnjak	naravni spomenik	1	protected area contained by site	0
Brestovica pri Povirju - kal Globočaj	naravni spomenik	16	protected area contained by site	0
Beka - soteska Glinščice z dolino Griža, ponornimi jamami in arheološkimi lokalitetami Lorencom in grad nad Botačem	krajinski park	265	protected area overlaps with site	0
Beka - brezno na Škrklovici	naravni spomenik	1	protected area overlaps with site	0

IUCN Habitat	Habitat detail	Extent (% of site)
Forest	Native coniferous woodland	-
Shrubland	Scrub	-
Grassland	Steppes and dry calcareous grassland	-
Caves and Subterranean Habitats (non-aquatic)	Caves	-
Artificial/Terrestrial	Arable land, Forestry plantations, Other urban and industrial areas	-
Rocky areas (eg. inland cliffs, mountain peaks)	Inland cliffs	-

For further information about the habitat classification please click here.

Land-use	Extent (% of site)
agriculture	-
forestry	-
urban/industrial/transport	-
not utilised	-

For further information about the land use classification please click here.

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Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Karst. Downloaded from http://www.birdlife.org on 28/03/2023.