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The site was identified as internationally important for bird conservation 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 List	Season (year/s of estimate)	Size	IBA criteria
Rock Partridge Alectoris graeca	NT	breeding (2002–2010)	5–10 pairs	C6
European Nightjar Caprimulgus europaeus	LC	breeding (2002–2010)	500–800 pairs	B2, C6
Eurasian Scops-owl Otus scops	LC	breeding (2006–2010)	120–200 pairs	B2
Eurasian Eagle-owl Bubo bubo	LC	breeding (2004–2011)	9–16 pairs	B2, C6
Short-toed Snake-eagle Circaetus gallicus	LC	breeding (2000–2010)	5–10 pairs	B2, C6
Griffon Vulture Gyps fulvus	LC	breeding (2000–2010)	90–100 pairs	C6
Woodlark Lullula arborea	LC	breeding (2002–2010)	1,100–1,500 pairs	B2, C6
Tawny Pipit Anthus campestris	LC	breeding (1995–2010)	20–30 pairs	C6
Rock Bunting Emberiza cia	LC	breeding (2002–2010)	1,600–1,800 pairs	B2
Ortolan Bunting Emberiza hortulana	LC	breeding (2000–2010)	90–130 pairs	C6

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	Actual vs Reference (units)	% remaining	Result
Short-toed Snake-eagle Circaetus gallicus	6 / 7 (pairs)	86	moderate
Ortolan Bunting Emberiza hortulana	5 / 110 (pairs)	5	very poor

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

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Natural system modifications	happe­ning now	whole of popul­ation/area (>90%)	rapid decline (>30% over 3 gener­ations)	very high
Human intrusions and disturbance	happe­ning now	some of popul­ation/area (10–49%)	rapid decline (>30% over 3 gener­ations)	high
Transportation and service corridors	happe­ning now	some of popul­ation/area (10–49%)	moderate decline (10–30% over 3 gener­ations)	high
Energy production and mining	happe­ning now	some of popul­ation/area (10–49%)	moderate decline (10–30% over 3 gener­ations)	high
Residential and commercial development	happe­ning now	some of popul­ation/area (10–49%)	moderate decline (10–30% over 3 gener­ations)	high

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Whole area (>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 (management category)	% coverage of IBA
-	Vremscica	Landscape Park (-)	<1
1951	Štanjel	krajinski park (V)	<1
1980	Regijski park Škocjanske jame	regijski park (III)	1
1985	Lokvica, Jama pod Pečinko	naravni spomenik (III)	-
1986	Škocjan Caves	World Heritage Site (natural or mixed) (UA)	1
1991	Vremščica - vrh in pobočje	naravni spomenik (III)	<1
1992	Beka - soteska Glinščice z dolino Griža, ponornimi jamami in arheološkimi lokalitetami Lorencom in grad nad Botačem	krajinski park (V)	<1
1992	Slavnik - vrh in pobočja	naravni spomenik (III)	<1
1992	Vremščica - vrh in pobočja	naravni spomenik (III)	<1
1992	Komen - Obršljanski gozd	naravni spomenik (III)	<1
1992	Komen - gozd Draga	naravni spomenik (III)	<1
1992	Brestovica pri Povirju - kal Globočaj	naravni spomenik (III)	<1
1992	Komen - gozd Cirje	naravni spomenik (III)	<1
1992	Divača - Risnik	naravni spomenik (III)	<1
1992	Divača - Bukovnik	naravni spomenik (III)	<1
1992	Sežana - Sežanski dol z jamami I. in II.	naravni spomenik (III)	<1
1992	Sežana - jama v Ukmarjevem dolu ob Bazoviški cesti	naravni spomenik (III)	<1
1992	Dane pri Divači - jama nad Škrinjarco	naravni spomenik (III)	-
1992	Brestovica pri Povirju - Petnjak	naravni spomenik (III)	<1
1992	Dane pri Divači - Medjame	naravni spomenik (III)	<1
1992	Lipica - Lipiško brezno	naravni spomenik (III)	-
1992	Štanjel - Kopriva - nahajališče kraškega marmorja	naravni spomenik (III)	-
1992	Dobravlje- Debela peč	naravni spomenik (III)	-
1992	Sežana - Jama v Golokračini	naravni spomenik (III)	-
1992	Sežana - Čebulcova jama	naravni spomenik (III)	-
1992	Kazlje - Komihcova jama	naravni spomenik (III)	-
1992	Gradišče pri Materiji - Martinjska jama	naravni spomenik (III)	-
1992	Sežana - Ulčarjeva jama v Paredu	naravni spomenik (III)	-
1992	Gorenje - Konjičja jama	naravni spomenik (III)	-
1992	Divača - Kačna jama	naravni spomenik (III)	-
1992	Sežana - Jama ob Bazoviški cesti na Trebanjski gmajni	naravni spomenik (III)	-
1992	Rakitovec - pečina v Radotah	naravni spomenik (III)	-
1992	Sežana - Orleška ali Tomaškova jama	naravni spomenik (III)	-
1992	Ivanji Grad - Preserska jama	naravni spomenik (III)	-
1992	Lipica - Lipenjska jama	naravni spomenik (III)	-
1992	Klanec pri Kozini - lipa pri cerkvi Sv. Petra	naravni spomenik (III)	-
1992	Lokev pri Divači - Jama Vilenica	naravni spomenik (III)	-
1992	Sežana - jama Bukovnik	naravni spomenik (III)	-
1992	Žirje - Junčja jama	naravni spomenik (III)	-
1992	Orlek - Golokratna jama	naravni spomenik (III)	-
1992	Lokev pri Divači - Jama pod Gaugami	naravni spomenik (III)	-
1992	Sežana - Škamprlova ali Škamprletova jama	naravni spomenik (III)	-
1992	Gabrovica pri Komnu - Lipi pri c. Sv. Petra	naravni spomenik (III)	-
1992	Gradišče pri Materiji - jama pod Mavrovcem	naravni spomenik (III)	-
1992	Sežana - Koblarska jama	naravni spomenik (III)	-
1992	Divača - Divaška jama	naravni spomenik (III)	-
1992	Sežana - Jama ob Bazoviški cesti na Gropajski gmajni	naravni spomenik (III)	-
1992	Rakitovec - jama pod Gabrkom	naravni spomenik (III)	-
1992	Žirje - Belinca jama	naravni spomenik (III)	-
1992	Lipica - kamniti gobi	naravni spomenik (III)	-
1992	Beka - brezno na Škrklovici	naravni spomenik (III)	-
1992	Sveto - lipa pred vaško cerkvijo	naravni spomenik (III)	-
1992	Sežana - Jama v partu pri Ogradi	naravni spomenik (III)	-
1996	Mala jama na Prevali	naravni spomenik (III)	-
1996	Jama na Prevali II	naravni spomenik (III)	-
1996	Jama Škrlica	naravni spomenik (III)	-
2004	The Karst	UNESCO-MAB Biosphere Reserve (UA)	-

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

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 24/12/2024.