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Year of most recent IBA criteria assessment: 2001

Populations of IBA trigger species

Species	Current IUCN Red List Category	Season	Year(s) of estimate	Population estimate	IBA Criteria Triggered
Madagascar Grebe Tachybaptus pelzelnii	EN	resident	1993-1997	present	A1
Giant Coua Coua gigas	LC	resident	1993-1997	present	A3
Coquerel's Coua Coua coquereli	LC	resident	1993-1997	present	A2, A3
Olive-capped Coua Coua olivaceiceps	LC	resident	1993-1997	present	A3
Madagascar Crested Ibis Lophotibis cristata	NT	resident	1993-1997	present	A1
Madagascar Pond-heron Ardeola idae	EN	breeding	1993-1997	present	A1
Madagascar Marsh-harrier Circus macrosceles	EN	resident	1993-1997	present	A1
Madagascar Sparrowhawk Accipiter madagascariensis	NT	resident	1993-1997	present	A1
Henst's Goshawk Accipiter henstii	VU	resident	1993-1997	present	A1
Sickle-billed Vanga Falculea palliata	LC	resident	1993-1997	present	A3
Subdesert Brush-warbler Nesillas lantzii	LC	resident	1993-1997	present	A3
Thamnornis Thamnornis chloropetoides	LC	resident	1993-1997	present	A2, A3
Appert's Tetraka Xanthomixis apperti	VU	resident	1993-1997	present	A1, A2, A3
Forest Rock-thrush Monticola sharpei	LC	non-breeding	1993-1997	present	A1, A2
Sakalava Weaver Ploceus sakalava	LC	resident	1993-1997	present	A3

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
Biological resource use	hunting & collecting terrestrial animals - motivation unknown/unrecorded	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Biological resource use	logging & wood harvesting - motivation unknown/unrecorded	happening now	small area/few individuals (<10%)	slow but significant deterioration	low
Energy production and mining	mining and quarrying	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Natural system modifications	fire & fire suppression - trend unknown/unrecorded	happening now	some of area/population (10-49%)	slow but significant deterioration	medium

Condition of habitat (state)
Habitat	Habitat Detail	Reference Area (ha)	Actual Area (ha)	% of habitat remaining	% of carrying capacity (overall)	Result
Forest		36803	35255	-	good (> 90%)	favourable

Conservation actions taken at site (response)
Conservation Designation	Management Planning	Conservation Action	Result
Unknown	A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	Unknown	low

For more information about IBA monitoring please click here

Protected Area	Designation	Area (ha)	Relationship with IBA	Overlap with IBA (ha)
Zombitse-Vohibasia	National Park	36,853	protected area contained by site	36,853
Vohibasia	National Park	36,853	protected area contained by site	0

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

For further information about the habitat classification please click here.

Land-use	Extent (% of site)
agriculture	-
hunting	-
nature conservation and research	-
tourism/recreation	-
other	-

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

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Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Zombitse-Vohibasia National Park and extension. Downloaded from http://www.birdlife.org on 30/03/2023.