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 |
|---|---|---|---|---|
| White-winged Flufftail Sarothrura ayresi | CR | non-breeding (1998) | 40–75 birds | A1, A4i |
| Corncrake Crex crex | LC | winter (-) | present | A1 |
| Wattled Crane Bugeranus carunculatus | VU | resident (-) | 1 pairs | A1 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 1998. The most recent assessment (2013) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2013 | very poor | high | very low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | habitat | medium | |
| State (condition of the trigger species' populations) | |||||
|---|---|---|---|---|---|
| Species | Actual vs Reference (units) | % remaining | Result | ||
| Grey Crowned Crane Balearica regulorum | 10 / 4 (pairs) | 100 | good | ||
| Wattled Crane Bugeranus carunculatus | 6 / 8 (pairs) | 75 | moderate | ||
| State (condition of the trigger species' habitats) | |||
|---|---|---|---|
| Habitat | Quantity (% remaining) | Quality (% carrying capacity) | Result |
| Wetlands (inland) | poor (40–69%) | poor (40–69%) | very poor |
| Grassland | poor (40–69%) | poor (40–69%) | very poor |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Natural system modifications | happening now | whole of population/area (>90%) | slow decline (1–10% over 3 generations) | high |
| Human intrusions and disturbance | happening now | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | high |
| Energy production and mining | likely in long term (>4 years) | whole of population/area (>90%) | moderate decline (10–30% over 3 generations) | high |
| Invasive and other problematic species and genes | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| 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 long term (>4 years) | whole of population/area (>90%) | slow decline (1–10% over 3 generations) | medium |
| Residential and commercial development | happening now | few individuals/small area (<10%) | moderate decline (10–30% over 3 generations) | low |
| Biological resource use | happening now | few individuals/small area (<10%) | moderate decline (10–30% over 3 generations) | low |
| Pollution | happening now | few individuals/small area (<10%) | moderate decline (10–30% over 3 generations) | low |
| Agricultural expansion and intensification | happening now | 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 |
| Little/none of area covered (<10%) | No management planning has taken place | Some limited conservation initiatives are in place | very low |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Shrubland | 70 | |
| Artificial/Terrestrial | 14 | |
| Forest | 14 | |
| Grassland | - | |
| Wetlands (inland) | - |
| Land use | % of IBA |
|---|---|
| nature conservation and research | 100 |
| forestry | 1 |
| agriculture | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Franklin Vlei (South Africa). Downloaded from
https://datazone.birdlife.org/site/factsheet/franklin-vlei-iba-south-africa on 27/12/2024.