Data Zone
The site was identified as important in 2012 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 |
|---|---|---|---|---|---|
| Great Frigatebird Fregata minor | LC | breeding | 1988 | 2,427 breeding pairs | A4ii |
| Red-footed Booby Sula sula | LC | breeding | 1988 | 2,221 breeding pairs | A4ii |
| Bristle-thighed Curlew Numenius tahitiensis | NT | non-breeding | 1988-1990 | 83-300 individuals | A1, A4i |
| Black Noddy Anous minutus | LC | breeding | 1988 | 8,392 breeding pairs | A4i |
| Gygis alba | NR | breeding | 1988 | 3,957 breeding pairs | A4i |
| Sooty Tern Onychoprion fuscatus | LC | breeding | 1988-1990 | 188,200 breeding pairs | A4i |
| A4iii Species group - waterbirds | n/a | breeding | 1988 | 202,040 breeding pairs | A4iii |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2012) may differ.
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2012. The most recent assessment (2012) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2012 | not assessed | high | negligible |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | population | medium | |
| State (condition of the trigger species' populations) | |||||
|---|---|---|---|---|---|
| Species | Reference | Actual | Units | % remaining | Result |
| Red-tailed Tropicbird Phaethon rubricauda | 112 | 112 | breeding pairs | 100 | not assessed |
| Great Frigatebird Fregata minor | 5,000 | 4,854 | breeding pairs | 98 | not assessed |
| Red-footed Booby Sula sula | 2,500 | 4,442 | breeding pairs | 100 | not assessed |
| Bristle-thighed Curlew Numenius tahitiensis | 192 | 192 | individuals | 100 | not assessed |
| Black Noddy Anous minutus | 16,794 | 16,794 | breeding pairs | 100 | not assessed |
| Gygis alba | 11,482 | 11,482 | breeding pairs | 100 | not assessed |
| A4iii Species group - waterbirds | 407,495 | 407,495 | individuals | 100 | not assessed |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Climate change and severe weather | likely in long term (beyond 4 years) | whole area/population (>90%) | moderate to rapid deterioration | high |
| Invasive and other problematic species and genes | happening now | whole area/population (>90%) | no or imperceptible deterioration | low |
| Biological resource use | happening now | some of area/population (10-49%) | no or imperceptible deterioration | low |
| Residential and commercial development | happening now | some of area/population (10-49%) | no or imperceptible deterioration | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected areas | Management plan | Other action | Result |
| Little/none of site covered (<10%) | No management planning has taken place | Very little or no conservation action taking place | negligible |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Millenium (Caroline) Island (Kiribati). Downloaded from
https://datazone.birdlife.org/site/factsheet/millenium-(caroline)-island-iba-kiribati on 23/11/2024.