The site was identified as important 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 List1 | Season | Year(s) | 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 |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (1998) may differ.
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 unfavourable | 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 unfavourable |
Wetlands (inland) | moderate (70-90%) | poor (40-69%) | very unfavourable |
Pressure (threats to the trigger species and/or their habitats) | ||||
---|---|---|---|---|
Threat | Timing | Scope | Severity | Result |
Climate change and severe weather | likely in short term (within 4 years) | majority/most of area/population (50-90%) | slow but significant deterioration | medium |
Transportation and service corridors | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
Agricultural expansion and intensification | happening now | small area/few individuals (<10%) | slow but significant deterioration | low |
Biological resource use | happening now | small area/few individuals (<10%) | slow but significant deterioration | low |
Energy production and mining | likely in short term (within 4 years) | small area/few individuals (<10%) | slow but significant deterioration | low |
Human intrusions and disturbance | happening now | small area/few individuals (<10%) | slow but significant deterioration | low |
Invasive and other problematic species and genes | happening now | small area/few individuals (<10%) | slow but significant deterioration | low |
Natural system modifications | happening now | small area/few individuals (<10%) | slow but significant deterioration | low |
Pollution | happening now | small area/few individuals (<10%) | slow but significant deterioration | low |
Residential and commercial development | happening now | small area/few individuals (<10%) | no or imperceptible deterioration | low |
Response (conservation actions taken for the trigger species and/or their habitats) | |||
---|---|---|---|
Protected areas | Management plan | Other action | Result |
Whole area of site (>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 |
Year | Protected Area | Designation | % overlap with IBA |
---|---|---|---|
1975 | Dwesa-Cwebe Nature Reserve | Nature Reserve | 100 |
2000 | Dwesa-Cwebe Marine Protected Area | Marine Protected Area | 6 |
Habitat1 | Habitat detail | % of IBA |
---|---|---|
Forest | Mangrove, Lowland forest - mixed moist evgn & semi-evgn, Lowland forest - dry evergreen, Lowland forest - dry deciduous | 91 |
Artificial/Terrestrial | Farmbush, fallow & ruderal land | 8 |
Grassland | Grassland - edaphic, wet | minor (<10) |
Marine Coastal/Supratidal | minor (<10) | |
Marine Intertidal | minor (<10) | |
Marine Neritic | minor (<10) | |
Wetlands (inland) | Rivers & streams | minor (<10) |
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 23/11/2024.