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The site was identified as important in 2007 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
Polynesian Ground Dove Pampusana erythroptera	CR	resident	-	10-12 individuals	A1, A2
Atoll Fruit-dove Ptilinopus coralensis	NT	resident	-	common	A1, A2
Bristle-thighed Curlew Numenius tahitiensis	NT	non-breeding	-	min 100 individuals	A1, A4i
Gygis alba	NR	breeding	-	1,000 breeding pairs	A4i
Blue Lorikeet Vini peruviana	VU	resident	2006	1,249 individuals	A1, A2
Tuamotu Reed-warbler Acrocephalus atyphus	LC	resident	-	rare	A2

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2007) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2012) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Polynesian Ground Dove Pampusana erythroptera	11	11	individuals	100	not assessed
Bristle-thighed Curlew Numenius tahitiensis	100	100	individuals	100	not assessed
Gygis alba	1,000	1,000	breeding pairs	100	not assessed
Blue Lorikeet Vini peruviana	1,249	1,249	individuals	100	not assessed

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Invasive and other problematic species and genes	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high
Climate change and severe weather	likely in long term (beyond 4 years)	whole area/population (>90%)	slow but significant deterioration	medium
Biological resource use	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Little/none of site covered (<10%)	No management planning has taken place	Some limited conservation initiatives are in place	negligible

Habitat1	Habitat detail	% of IBA
Artificial/Terrestrial	Coconut plantations	65
Marine Intertidal		25
Forest	Dry deciduous forest (tropical)	5
Shrubland		5

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	-
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Motu de l'ouest et du sud de Rangiroa (French Polynesia). Downloaded from https://datazone.birdlife.org/site/factsheet/motu-de-louest-et-du-sud-de-rangiroa-iba-french-polynesia on 23/11/2024.