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 |
|---|---|---|---|---|
| Maccoa Duck Oxyura maccoa | EN | resident (2007–2010) | < 50 birds | A1 |
| Grey Crowned Crane Balearica regulorum | EN | resident (2007) | < 50 birds | A1 |
| Hunter's Cisticola Cisticola hunteri | LC | resident (2007) | present | A2, A3 |
| Jackson's Widowbird Euplectes jacksoni | NT | resident (2007) | < 50 birds | A2, A3 |
| Sharpe's Longclaw Macronyx sharpei | EN | resident (2007) | < 50 birds | A1, A2, A3 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2023) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2023 | poor | very high | medium |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | habitat | good | |
| State (condition of the trigger species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Wetlands (inland) | moderate (70–90%) | moderate (70–90%) | poor |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Climate change and severe weather | happening now | whole of population/area (>90%) | rapid decline (>30% over 3 generations) | very high |
| Agricultural expansion and intensification | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| Biological resource use | happening now | most of population/area (50–90%) | rapid decline (>30% over 3 generations) | very high |
| Energy production and mining | happening now | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Residential and commercial development | happening now | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | high |
| Invasive and other problematic species and genes | likely in short term (<4 years) | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Pollution | likely in short term (<4 years) | 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 |
| Some of area covered (10–49%) | A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species | Substantive conservation measures are being implemented, but these are not comprehensive and are limited by resources and capacity | medium |
The Local Conservation Group(s) listed below are working to conserve this IBA.
| Name | Year formed |
|---|---|
| Nyahururu Bird Club | 2008 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Wetlands (inland) | 72 | Freshwater lakes and pools |
| Grassland | 28 | Grassland - montane |
| Land use | % of IBA |
|---|---|
| agriculture | 70 |
| nature conservation and research | 15 |
| other | 5 |
| forestry | 1 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Ol' Bolossat (Kenya). Downloaded from
https://datazone.birdlife.org/site/factsheet/lake-ol-bolossat-iba-kenya on 23/12/2024.