Data Zone
The site was identified as internationally important for bird conservation 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 List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Sharp-tailed Tyrant Culicivora caudacuta | LC | resident (1998–2007) | present | A1 |
| Ochre-breasted Pipit Anthus nattereri | VU | resident (1998–2007) | present | A1 |
| Chestnut Seedeater Sporophila cinnamomea | VU | passage (1998–2007) | present | A1 |
| Marsh Seedeater Sporophila palustris | EN | passage (1998–2007) | present | A1 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2011) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2011 | not assessed | very high | high |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | unset | - | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Invasive and other problematic species and genes | happening now | whole of population/area (>90%) | rapid decline (>30% over 3 generations) | very high |
| Natural system modifications | happening now | whole of population/area (>90%) | rapid decline (>30% over 3 generations) | very high |
| Biological resource use | happening now | whole of population/area (>90%) | rapid decline (>30% over 3 generations) | very high |
| Residential and commercial development | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Whole area (>90%) covered by appropriate conservation designation | A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species | The conservation measures needed for the site are being comprehensively and effectively implemented | high |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1994 | Reserva Biológica Isla Yacyreta | Reserva de las Entidades Binacionales - Autarquico (IV) | 100 |
| 1994 | Yacyreta | Biological Reserve (IV) | 100 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Wetlands (inland) | 55 | |
| Forest | 22 | Tropical deciduous forest; Tropical semi-deciduous forest; Tropical semi-evergreen forest |
| Shrubland | 10 | Scrub |
| Savanna | 9 | Savanna |
| Grassland | 2 | Campo grassland |
| Land use | % of IBA |
|---|---|
| agriculture | 2 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Isla Yacyretá (Paraguay). Downloaded from
https://datazone.birdlife.org/site/factsheet/isla-yacyretá-iba-paraguay on 23/12/2024.