• Summary
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• Map
• Reference and further resources

The site was identified as important in 1999 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
Madagascar Crested Ibis Lophotibis cristata	VU	resident	1997	present	A1
Malagasy Pond Heron Ardeola idae	EN	breeding	1997	present	A1
Madagascar Heron Ardea humbloti	EN	resident	1997	present	A1, A3
Lesser Crested Tern Thalasseus bengalensis	LC	non-breeding	1997	575 individuals	A4i
Madagascar Fish-eagle Haliaeetus vociferoides	CR	resident	1997	2-3 breeding pairs	A1, A3
Schlegel's Asity Philepitta schlegeli	NT	resident	1997	present	A3
Sakalava Weaver Ploceus sakalava	LC	resident	1997	present	A3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (1999) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 1999. The most recent assessment (2017) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	moderate (70-90%)	moderate (70-90%)	unfavourable
Marine Coastal/Supratidal	moderate (70-90%)	moderate (70-90%)	unfavourable
Savanna	moderate (70-90%)	moderate (70-90%)	unfavourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Biological resource use	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Natural system modifications	happening now	some of area/population (10-49%)	slow but significant deterioration	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Unknown	A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	Unknown	low

Year	Protected Area	Designation	% overlap with IBA
2017	Zones Humides de Sahamalaza	Ramsar Site, Wetland of International Importance	17

Habitat1	Habitat detail	% of IBA
Forest	Lowland forest - dry deciduous, Mangrove	49
Marine Coastal/Supratidal		47
Savanna		2

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	-
fisheries/aquaculture	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Sahamalaza - Radama Islands National Marine Park (Madagascar). Downloaded from https://datazone.birdlife.org/site/factsheet/sahamalaza--radama-islands-national-marine-park-iba-madagascar on 23/11/2024.