Data Zone
The site was identified as important in 2010 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 List1 | Season | Year(s) | Size | IBA criteria |
|---|---|---|---|---|---|
| Brown Pelican Pelecanus occidentalis | LC | resident | - | present | A4i |
| Wilson's Plover Charadrius wilsonia | LC | breeding | - | present | A4i |
| Piping Plover Charadrius melodus | NT | winter | - | present | A1 |
| Black Skimmer Rynchops niger | LC | resident | - | present | A4i |
| Sandwich Tern Thalasseus sandvicensis | LC | breeding | - | present | A4i |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2010) may differ.
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2010. The most recent assessment (2014) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2014 | not assessed | very high | medium |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | unset | unknown | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Natural system modifications | happening now | whole area/population (>90%) | very rapid to severe deterioration | very high |
| Climate change and severe weather | happening now | whole area/population (>90%) | moderate to rapid deterioration | very high |
| Energy production and mining | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Human intrusions and disturbance | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected areas | Management plan | Other action | Result |
| Some of site covered (10-49%) | 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 | medium |
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| 1992 | Isles Dernieres Barrier Islands | Refuge | 2 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Isles Dernieres - Timbalier Islands (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/isles-dernieres--timbalier-islands-iba-usa on 23/11/2024.