Data Zone
The site was identified as internationally important for bird conservation in 2006 because it was regularly supporting significant populations of the species listed below, meeting IBA criteria.
Populations meeting IBA criteria ('key species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Brazilian Merganser Mergus octosetaceus | CR | resident (-) | < 50 individuals | A1 |
| Crowned Solitary Eagle Buteogallus coronatus | EN | resident (-) | present | A1 |
| Sharp-tailed Tyrant Culicivora caudacuta | LC | resident (-) | 30 individuals | A1 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2006. The most recent assessment (2022) is shown below.
| IBA conservation status | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2022 | very unfavourable | very high | very low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | habitat | poor | |
| State (condition of the key species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Artificial/Terrestrial | moderate (70–90%) | very poor (<40%) | very unfavourable |
| Savanna | very poor (<40%) | poor (40–69%) | very unfavourable |
| Pressure (threats to the key species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Agricultural expansion and intensification | happening now | whole population/area (>90%) | rapid deterioration (>30% over 3 generations) | very high |
| Response (conservation actions taken for the key species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Little/none of site covered (<10%) | No management planning has taken place | Very little or no conservation action taking place | very low |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Artificial/Terrestrial | major (>10) | Forestry and agro-industrial plantations |
| Savanna | major (>10) | Cerrado |
| Land use | % of IBA |
|---|---|
| agriculture | major (>10) |
| rangeland/pastureland | major (>10) |
Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Rio Arrojado (Brazil). Downloaded from
https://datazone.birdlife.org/site/factsheet/rio-arrojado-iba-brazil on 21/01/2025.