Data Zone
The site was identified as internationally important for bird conservation in 1999 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 |
|---|---|---|---|---|
| Fischer's Turaco Tauraco fischeri | NT | resident (1999) | present | A1, A2, A3 |
| Eastern Green Tinkerbird Pogoniulus simplex | LC | resident (1999) | present | A3 |
| Mombasa Woodpecker Campethera mombassica | LC | resident (1999) | present | A3 |
| Brown-headed Parrot Poicephalus cryptoxanthus | LC | resident (1999) | present | A3 |
| Green-headed Oriole Oriolus chlorocephalus | LC | resident (1999) | present | A3 |
| Chestnut-fronted Helmetshrike Prionops scopifrons | LC | resident (1999) | present | A3 |
| Fischer's Greenbul Phyllastrephus fischeri | LC | resident (1999) | present | A3 |
| Lowland Tiny Greenbul Phyllastrephus debilis | LC | resident (1999) | present | A3 |
| Little Yellow Flycatcher Erythrocercus holochlorus | LC | resident (1999) | present | A3 |
| Black-bellied Starling Notopholia corusca | LC | resident (1999) | present | A3 |
| Plain-backed Sunbird Anthreptes reichenowi | NT | resident (1999) | present | A1, A3 |
| Sokoke Pipit Anthus sokokensis | EN | resident (1999) | present | A1, A2, A3 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 1999. The most recent assessment (2023) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2023 | poor | 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 |
| Shrubland | moderate (70–90%) | moderate (70–90%) | poor |
| Forest | good (>90%) | good (>90%) | good |
| 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%) | slow decline (1–10% over 3 generations) | high |
| Human intrusions and disturbance | happening now | whole of population/area (>90%) | no or slight decline (<1% over 3 generations) | low |
| Residential and commercial development | happening now | most of population/area (50–90%) | no or slight decline (<1% over 3 generations) | low |
| Natural system modifications | happening now | some of population/area (10–49%) | no or slight decline (<1% over 3 generations) | low |
| Agricultural expansion and intensification | happening now | few individuals/small area (<10%) | no or slight decline (<1% over 3 generations) | low |
| Biological resource use | happening now | few individuals/small area (<10%) | no or slight decline (<1% over 3 generations) | low |
| 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 management plan exists, but it is out of date or not comprehensive | Substantive conservation measures are being implemented, but these are not comprehensive and are limited by resources and capacity | medium |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Forest | - | Lowland forest - undifferentiated |
| Shrubland | - | Scrub - woodland |
| Land use | % of IBA |
|---|---|
| forestry | - |
| nature conservation and research | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Marenji Forest (Kenya). Downloaded from
https://datazone.birdlife.org/site/factsheet/marenji-forest-iba-kenya on 23/12/2024.