Data Zone
The site was identified as internationally important for bird conservation in 2001 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 |
|---|---|---|---|---|
| Philippine Duck Anas luzonica | VU | resident (2001) | min 100 birds | A1, A4i |
| Spotted Imperial-pigeon Ducula carola | VU | resident (1976) | present | A1 |
| Sarus Crane Grus antigone | VU | breeding (1965) | present | A1 |
| Purple Heron Ardea purpurea | LC | resident (1999) | present | A4i |
| South Philippine Hawk-eagle Nisaetus pinskeri | EN | resident (1989) | present | A1 |
| Southern Silvery Kingfisher Ceyx argentatus | NT | resident (1999) | present | A1, A2 |
| Rufous-lored Kingfisher Todiramphus winchelli | VU | resident (1900–1919) | present | A1 |
| Celestial Monarch Hypothymis coelestis | VU | resident (1900–1919) | present | A1, A2 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2001. The most recent assessment (2001) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2001 | not assessed | high | not assessed |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | unset | good | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Biological resource use | happening now | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | high |
| Agricultural expansion and intensification | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Pollution | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Natural system modifications | likely in long term (>4 years) | some of population/area (10–49%) | no or slight decline (<1% over 3 generations) | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Not assessed | Not assessed | Not assessed | not assessed |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1996 | Agusan Marsh | Wildlife Sanctuary (IV) | 100 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Forest | major (>10) | |
| Wetlands (inland) | major (>10) | |
| Artificial/Terrestrial | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Agusan marsh (Philippines). Downloaded from
https://datazone.birdlife.org/site/factsheet/agusan-marsh-iba-philippines on 23/12/2024.