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The site was identified as important in 2011 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
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

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2011) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2011. The most recent assessment (2015) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Short-toed Snake-eagle Circaetus gallicus	7	6	breeding pairs	86	near favourable
Ortolan Bunting Emberiza hortulana	110	5	breeding pairs	5	very unfavourable

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Grassland	good (> 90%)	poor (40-69%)	unfavourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Natural system modifications	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Human intrusions and disturbance	happening now	some of area/population (10-49%)	very rapid to severe deterioration	high
Transportation and service corridors	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Energy production and mining	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Residential and commercial development	likely in short term (within 4 years)	small area/few individuals (<10%)	very rapid to severe deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other 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

Year	Protected Area	Designation	% overlap with IBA
-	Vremscica	Landscape Park	<1
1951	Štanjel	krajinski park	<1
1952	Rihemberški grad z okolico	spomenik oblikovane narave	-
1980	Regijski park Škocjanske jame	regijski park	1
1985	Lokvica, Jama pod Pečinko	naravni spomenik	-
1986	Škocjan Caves	World Heritage Site (natural or mixed)	1
1991	Vremščica - vrh in pobočje	naravni spomenik	<1
1992	Beka - soteska Glinščice z dolino Griža, ponornimi jamami in arheološkimi lokalitetami Lorencom in grad nad Botačem	krajinski park	<1
1992	Slavnik - vrh in pobočja	naravni spomenik	<1
1992	Vremščica - vrh in pobočja	naravni spomenik	<1
1992	Komen - Obršljanski gozd	naravni spomenik	<1
1992	Komen - gozd Draga	naravni spomenik	<1
1992	Brestovica pri Povirju - kal Globočaj	naravni spomenik	<1
1992	Komen - gozd Cirje	naravni spomenik	<1
1992	Divača - Risnik	naravni spomenik	<1
1992	Sežana - Sežanski dol z jamami I. in II.	naravni spomenik	<1
1992	Divača - Bukovnik	naravni spomenik	<1
1992	Sežana - jama v Ukmarjevem dolu ob Bazoviški cesti	naravni spomenik	<1
1992	Lipica - Lipiško brezno	naravni spomenik	-
1992	Brestovica pri Povirju - Petnjak	naravni spomenik	<1
1992	Dane pri Divači - jama nad Škrinjarco	naravni spomenik	-
1992	Štanjel - Kopriva - nahajališče kraškega marmorja	naravni spomenik	-
1992	Dane pri Divači - Medjame	naravni spomenik	<1
1992	Sežana - Koblarska jama	naravni spomenik	-
1992	Orlek - Golokratna jama	naravni spomenik	-
1992	Lokev pri Divači - Jama Vilenica	naravni spomenik	-
1992	Rakitovec - pečina v Radotah	naravni spomenik	-
1992	Dobravlje- Debela peč	naravni spomenik	-
1992	Sežana - Jama ob Bazoviški cesti na Gropajski gmajni	naravni spomenik	-
1992	Sveto - lipa pred vaško cerkvijo	naravni spomenik	-
1992	Ivanji Grad - Preserska jama	naravni spomenik	-
1992	Sežana - Čebulcova jama	naravni spomenik	-
1992	Lipica - kamniti gobi	naravni spomenik	-
1992	Gabrovica pri Komnu - Lipi pri c. Sv. Petra	naravni spomenik	-
1992	Rakitovec - jama pod Gabrkom	naravni spomenik	-
1992	Klanec pri Kozini - lipa pri cerkvi Sv. Petra	naravni spomenik	-
1992	Sežana - Jama ob Bazoviški cesti na Trebanjski gmajni	naravni spomenik	-
1992	Gorenje - Konjičja jama	naravni spomenik	-
1992	Sežana - Jama v partu pri Ogradi	naravni spomenik	-
1992	Divača - Divaška jama	naravni spomenik	-
1992	Lokev pri Divači - Jama pod Gaugami	naravni spomenik	-
1992	Gradišče pri Materiji - jama pod Mavrovcem	naravni spomenik	-
1992	Sežana - jama Bukovnik	naravni spomenik	-
1992	Sežana - Orleška ali Tomaškova jama	naravni spomenik	-
1992	Sežana - Ulčarjeva jama v Paredu	naravni spomenik	-
1992	Gradišče pri Materiji - Martinjska jama	naravni spomenik	-
1992	Žirje - Belinca jama	naravni spomenik	-
1992	Sežana - Škamprlova ali Škamprletova jama	naravni spomenik	-
1992	Žirje - Junčja jama	naravni spomenik	-
1992	Lipica - Lipenjska jama	naravni spomenik	-
1992	Divača - Kačna jama	naravni spomenik	-
1992	Kazlje - Komihcova jama	naravni spomenik	-
1992	Beka - brezno na Škrklovici	naravni spomenik	-
1992	Sežana - Jama v Golokračini	naravni spomenik	-
1996	Mala jama na Prevali	naravni spomenik	-
1996	Jama Škrlica	naravni spomenik	-
1996	Jama na Prevali II	naravni spomenik	-
1999	Skocjanske Jame	Ramsar Site, Wetland of International Importance	1
2004	Kras	posebno varstveno območje	94
2004	Kras	Special Protection Area (Birds Directive)	86
2004	Kras	ekološko pomembno območje	91
2004	Kras	posebno varstveno območje	73
2004	Kras	Site of Community Importance (Habitats Directive)	82
2004	Dolina Branice	ekološko pomembno območje	5
2004	Dolina Branice	Site of Community Importance (Habitats Directive)	5
2004	Dolina Branice	posebno varstveno območje	5
2004	Reka	Site of Community Importance (Habitats Directive)	<1
2004	Reka	posebno varstveno območje	<1
2004	Vrhe na Vipavskem	ekološko pomembno območje	<1
2004	Vrhe nad Rašo	Site of Community Importance (Habitats Directive)	<1
2004	Vrhe nad Rašo	posebno varstveno območje	<1
2004	The Karst	UNESCO-MAB Biosphere Reserve	-

Habitat1	Habitat detail	% of IBA
Forest	Native coniferous woodland	50
Artificial/Terrestrial	Arable land, Forestry plantations, Other urban and industrial areas	30
Shrubland	Scrub	30
Grassland	Steppes and dry calcareous grassland	10
Caves and Subterranean Habitats (non-aquatic)	Caves	-
Rocky areas (eg. inland cliffs, mountain peaks)	Inland cliffs	-

1. IUCN Habitat classification.

Land use	% of IBA
forestry	40
not utilised	40
agriculture	10
urban/industrial/transport	10

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Karst (Slovenia). Downloaded from https://datazone.birdlife.org/site/factsheet/karst-iba-slovenia on 23/11/2024.