Data Zone
The site was identified as internationally important for bird conservation in 1998 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 |
|---|---|---|---|---|
| Knysna Turaco Tauraco corythaix | LC | resident (1998) | present | A2, A3 |
| African Oystercatcher Haematopus moquini | LC | non-breeding (-) | present | A1 |
| Knysna Woodpecker Campethera notata | NT | resident (1998) | present | A1, A2 |
| Grey Cuckooshrike Ceblepyris caesius | LC | resident (1998) | present | A3 |
| Olive Bushshrike Chlorophoneus olivaceus | LC | resident (1998) | present | A3 |
| Yellow-throated Woodland-warbler Phylloscopus ruficapilla | LC | resident (1998) | present | A3 |
| Spotted Ground-thrush Geokichla guttata | VU | breeding (-) | present | A1 |
| Brown Scrub-robin Tychaedon signata | LC | resident (1998) | present | A2 |
| White-starred Robin Pogonocichla stellata | LC | resident (1998) | present | A3 |
| Chorister Robin-chat Cossypha dichroa | LC | resident (1998) | present | A2, A3 |
| Swee Waxbill Coccopygia melanotis | LC | resident (1998) | present | A3 |
| Forest Canary Crithagra scotops | LC | resident (1998) | present | A2, A3 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 1998. The most recent assessment (2014) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2014 | very poor | medium | medium |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | habitat | medium | |
| State (condition of the trigger species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Forest | moderate (70–90%) | poor (40–69%) | very poor |
| Wetlands (inland) | moderate (70–90%) | poor (40–69%) | very poor |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Transportation and service corridors | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Climate change and severe weather | likely in short term (<4 years) | most of population/area (50–90%) | slow decline (1–10% over 3 generations) | medium |
| Agricultural expansion and intensification | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Human intrusions and disturbance | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Invasive and other problematic species and genes | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Natural system modifications | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Pollution | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Biological resource use | happening now | few individuals/small area (<10%) | no or slight decline (<1% over 3 generations) | low |
| Residential and commercial development | happening now | few individuals/small area (<10%) | no or slight decline (<1% over 3 generations) | low |
| Energy production and mining | likely in short term (<4 years) | few individuals/small area (<10%) | slow decline (1–10% 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 | 91 | Mangrove; Lowland forest - mixed moist evgn & semi-evgn; Lowland forest - dry evergreen; Lowland forest - dry deciduous |
| Artificial/Terrestrial | 8 | Farmbush, fallow & ruderal land |
| Grassland | minor (<10) | Grassland - edaphic, wet |
| Marine Coastal/Supratidal | minor (<10) | |
| Marine Intertidal | minor (<10) | |
| Marine Neritic | minor (<10) | |
| Wetlands (inland) | minor (<10) | Rivers & streams |
| Land use | % of IBA |
|---|---|
| nature conservation and research | 100 |
| unknown | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Dwesa-Cwebe Nature Reserve (South Africa). Downloaded from
https://datazone.birdlife.org/site/factsheet/dwesa-cwebe-nature-reserve-iba-south-africa on 23/12/2024.