Data Zone
The site was identified as internationally important for bird conservation 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 List | Season (year/s of estimate) | 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 birds | A4i |
| Madagascar Fish-eagle Haliaeetus vociferoides | CR | resident (1997) | 2–3 pairs | A1, A3 |
| Schlegel's Asity Philepitta schlegeli | NT | resident (1997) | present | A3 |
| Sakalava Weaver Ploceus sakalava | LC | resident (1997) | present | A3 |
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.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2017 | poor | medium | low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | habitat | medium | |
| State (condition of the trigger species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Forest | moderate (70–90%) | moderate (70–90%) | poor |
| Marine Coastal/Supratidal | moderate (70–90%) | moderate (70–90%) | poor |
| Savanna | moderate (70–90%) | moderate (70–90%) | poor |
| 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%) | slow decline (1–10% over 3 generations) | medium |
| Natural system modifications | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | 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 (management category) | % coverage of IBA |
|---|---|---|---|
| 2017 | Zones Humides de Sahamalaza | Ramsar Site, Wetland of International Importance (II) | 17 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Forest | 49 | Lowland forest - dry deciduous; Mangrove |
| Marine Coastal/Supratidal | 47 | |
| Savanna | 2 |
| Land use | % of IBA |
|---|---|
| agriculture | - |
| fisheries/aquaculture | - |
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 23/12/2024.