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Year of most recent IBA criteria assessment: 1998

Populations of IBA trigger species

Species	Current IUCN Red List Category	Season	Year(s) of estimate	Population at site	IBA criteria triggered
Knysna Turaco Tauraco corythaix	LC	resident	1998	present	A2, A3
Cape Vulture Gyps coprotheres	VU	resident	-	present	A1
Knysna Woodpecker Campethera notata	NT	resident	1998	present	A1, A2
Grey Cuckooshrike Ceblepyris caesius	LC	resident	1998	present	A3
Olive Bush-shrike Chlorophoneus olivaceus	LC	resident	1998	present	A3
Barratt's Warbler Bradypterus barratti	LC	resident	1998	present	A3
Yellow-throated Woodland-warbler Phylloscopus ruficapilla	LC	resident	1998	present	A3
Spotted Ground-thrush Geokichla guttata	VU	non-breeding	-	present	A1
Brown Scrub-robin Tychaedon signata	LC	resident	1998	present	A2
White-starred Robin Pogonocichla stellata	LC	resident	1998	present	A3
Chorister Robin-chat Cossypha dichroa	LC	resident	1998	present	A2, A3
Gurney's Sugarbird Promerops gurneyi	NT	resident	1998	present	A3
Swee Waxbill Coccopygia melanotis	LC	resident	1998	present	A3
Forest Canary Crithagra scotops	LC	resident	1998	present	A2, A3

Note: The current IUCN Red List category may differ from the category that was valid at the time of IBA criteria assessment.

For more information about the IBA criteria, please click here

Threats to the site (pressure)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Biological resource use	hunting & collecting terrestrial animals - intentional use (species being assessed is the target)	happening now	small area/few individuals (<10%)	slow but significant deterioration	low
Climate change and severe weather	drought	likely in short term (within 4 years)	majority/most of area/population (50-90%)	slow but significant deterioration	medium
Human intrusions and disturbance	recreational activities	happening now	whole area/population (>90%)	no or imperceptible deterioration	low
Invasive and other problematic species and genes	invasive non-native/alien species/diseases - named species	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Natural system modifications	fire & fire suppression - increase in fire frequency/intensity	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low
Pollution	agricultural & forestry effluents - herbicides and pesticides	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Residential and commercial development	tourism and recreation areas	happening now	whole area/population (>90%)	no or imperceptible deterioration	low
Transportation and service corridors	roads and railroads	happening now	small area/few individuals (<10%)	moderate to rapid deterioration	low

Condition of the site (state), by habitat
Habitat	Habitat detail	Reference area (ha)	Actual area (ha)	Habitat quantity (% remaining)	Habitat quality (carrying capacity)	Result
Forest		0	0	good (> 90%)	moderate (70-90%)	near favourable
Grassland		0	0	moderate (70-90%)	moderate (70-90%)	unfavourable
Shrubland		0	0	good (> 90%)	moderate (70-90%)	near favourable

Conservation actions taken at the site (response)
Protected-area designation	Management planning	Other 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 conservation status, please click here

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Oribi Gorge Nature Reserve	Nature Reserve	1,850	protected area contained by site	1,917

IUCN Habitat	Habitat detail	Extent (% of site)
Shrubland		-
Grassland		-
Forest	Woodland - mixed	-

For further information about the IUCN habitat classification, please click here.

Land-use	Extent (% of site)
agriculture	-
nature conservation and research	-

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

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Oribi Gorge Nature Reserve. Downloaded from http://datazone.birdlife.org/site/factsheet/7139 on 05/06/2023.