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The site was identified as internationally important for bird conservation in 2009 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 List	Season (year/s of estimate)	Size	IBA criteria
Oahu Elepaio Chasiempis ibidis	VU	resident (2000)	1,974 birds	A1, A2
Oahu Alauahio Paroreomyza maculata	CR	resident (1987)	rare	A1, A2
Oahu Amakihi Chlorodrepanis flava	NT	resident (1991)	present	A1, A2
Iiwi Drepanis coccinea	VU	resident (2007)	6 birds	A1, A2
Apapane Himatione sanguinea	LC	resident (2007)	common birds	A2

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2009) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Invasive and other problematic species and genes	happe­ning now	most of popul­ation/area (50–90%)	slow decline (1–10% over 3 gener­ations)	high
Natural system modifications	likely in short term (<4 years)	some of popul­ation/area (10–49%)	rapid decline (>30% over 3 gener­ations)	high

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Some of area covered (10–49%)	No management plan exists, but the management planning process has begun	Very little or no conservation action taking place	low

Year	Protected Area	Designation (management category)	% coverage of IBA
1970	Kahana Valley	State Park (V)	5
1977	Sacred Falls	State Park (-)	1
1981	Kaala	Natural Area Reserve (V)	1
1981	Pahole	Natural Area Reserve (V)	1

Ownership of lands comprising the O`ahu Uplands IBA is complex and includes all or portions of a large number of parcels, including the following: Hau`ula, Kaipapau, Kuaokala, Mokuleia, Ewa, Makua-Kea`au, Wai`anae Kai, Waiahole, Nanakuli, Honolulu Watershed, Kuli`ou`ou, Round Top, and Pupukea-Paumalu State Forest Reserves; Pahole and Ka`ala State Natural Area Reserves; Kahana and Sacred Falls State Parks; Keaiwa Heiau State Recreation Area; the O`ahu Forest National Wildlife Refuge; Honouliuli Preserve managed by The Nature Conservancy; Kawailoa and Kahuku Army Training Areas, Schofield Army Barracks East Range, West Range, and South Range, Makua Military Reservation, Lualualei Naval Magazine, several large private parcels leased to the U.S. military, and a variety of other private parcels.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Oahu Uplands (USA). Downloaded from https://datazone.birdlife.org/site/factsheet/oahu-uplands-iba-usa on 23/12/2024.