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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
Running Coua Coua cursor	LC	resident	1997	present	A2, A3
Verreaux's Coua Coua verreauxi	LC	resident	1997	present	A1, A2, A3
Olive-capped Coua Coua olivaceiceps	LC	resident	1997	present	A3
Archbold's Newtonia Newtonia archboldi	LC	resident	1997	present	A2, A3
Red-shouldered Vanga Calicalicus rufocarpalis	VU	resident	1997	present	A2, A3
Lafresnaye's Vanga Xenopirostris xenopirostris	NT	resident	1997	present	A2, A3
Sickle-billed Vanga Falculea palliata	LC	resident	1997	present	A3
Subdesert Brush-warbler Nesillas lantzii	LC	resident	1997	present	A2, A3
Sakalava Weaver Ploceus sakalava	LC	resident	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	logging & wood harvesting - intentional use: subsistence/small scale	past (and unlikely to return) and no longer limiting	whole area/population (>90%)	slow but significant deterioration	low
Biological resource use	logging & wood harvesting - unintentional effects: large scale	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Human intrusions and disturbance	work and other activities	likely in long term (beyond 4 years)	majority/most of area/population (50-90%)	very rapid to severe deterioration	high
Residential and commercial development	housing and urban areas	happening now	majority/most of area/population (50-90%)	very rapid to severe deterioration	very high

Condition of habitat (state)
Habitat	Habitat Detail	Reference Area (ha)	Actual Area (ha)	% of habitat remaining	% of carrying capacity (overall)	Result
Forest		0	0	moderate (70-90%)	moderate (70-90%)	unfavourable
Wetlands (inland)		0	0	good (> 90%)	good (> 90%)	favourable

Conservation actions taken at site (response)
Conservation Designation	Management Planning	Conservation Action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	The conservation measures needed for the site are being comprehensively and effectively implemented	high

For more information about IBA monitoring please click here

Protected Area	Designation	Area (ha)	Relationship with IBA	Overlap with IBA (ha)
Zones humides de l'Onilahy	Ramsar Site, Wetland of International Importance	42,950	protected area overlaps with site	0
Tahosoa	Locally Managed Marine Area	5,000	protected area is adjacent to site	0

IUCN Habitat	Habitat detail	Extent (% of site)
Shrubland	Bushland & thicket - deciduous	-
Forest	Mangrove	-
Wetlands (inland)	Rivers & streams	-
Marine Intertidal		-

For further information about the habitat classification please click here.

Land-use	Extent (% of site)
unknown	-

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

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Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Saint Augustin Forest. Downloaded from http://www.birdlife.org on 31/03/2023.