Data Zone
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'):| Species | Current IUCN Red List Category | Season | Year(s) | Population estimate at site | IBA criteria met |
|---|---|---|---|---|---|
| White-winged Flufftail Sarothrura ayresi | CR | non-breeding | - | present | A1 |
| Cape Vulture Gyps coprotheres | VU | non-breeding | - | present | A1 |
| Black Harrier Circus maurus | EN | resident | - | present | A1 |
| Bush Blackcap Sylvia nigricapillus | VU | resident | 1998 | present | A1 |
| Buff-streaked Chat Campicoloides bifasciatus | LC | resident | 1998 | present | A1 |
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (1998).
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment (most recent) | State (condition) | Pressure (threat) | Response (action) |
| 2013 | not assessed | high | high |
| Was the whole site assessed? | State assessed by | Accuracy of information | |
| yes | unset | medium | |
| State (condition of the trigger species' habitats) | ||||||
|---|---|---|---|---|---|---|
| Habitat | Habitat detail | Reference area (ha) | Actual area (ha) | Habitat quantity (% remaining) | Habitat quality (carrying capacity) | Result |
| Grassland | Grassland - montane | 0 | 0 | good (> 90%) | moderate (70-90%) | near favourable |
| Wetlands (inland) | 0 | 0 | moderate (70-90%) | good (> 90%) | near favourable | |
| Pressure (threats to the trigger species and/or their habitats) | |||||
|---|---|---|---|---|---|
| Threat level 1 | Threat level 2 | Timing | Scope | Severity | Result |
| Agricultural expansion and intensification | livestock farming and ranching (includes forest grazing) - nomadic grazing | happening now | whole area/population (>90%) | slow but significant deterioration | high |
| Agricultural expansion and intensification | wood and pulp plantations (includes afforestation) - agro-industry plantations | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Biological resource use | hunting & collecting terrestrial animals - intentional use (species being assessed is the target) | likely in long term (beyond 4 years) | majority/most of area/population (50-90%) | moderate to rapid deterioration | medium |
| Biological resource use | hunting & collecting terrestrial animals - unintentional effects (species is not the target) | likely in short term (within 4 years) | majority/most of area/population (50-90%) | moderate to rapid deterioration | high |
| Human intrusions and disturbance | recreational activities | happening now | majority/most of area/population (50-90%) | no or imperceptible deterioration | low |
| Human intrusions and disturbance | work and other activities | happening now | majority/most of area/population (50-90%) | no or imperceptible deterioration | low |
| Invasive and other problematic species and genes | invasive non-native/alien species/diseases - named species | happening now | some of area/population (10-49%) | moderate to rapid deterioration | high |
| Natural system modifications | fire & fire suppression - increase in fire frequency/intensity | happening now | whole area/population (>90%) | slow but significant deterioration | high |
| Pollution | agricultural & forestry effluents - nutrient loads | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Residential and commercial development | tourism and recreation areas | happening now | majority/most of area/population (50-90%) | no or imperceptible deterioration | low |
| Transportation and service corridors | roads and railroads | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Transportation and service corridors | utility & service lines | happening now | some of area/population (10-49%) | no or imperceptible deterioration | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected-area designation | Management planning | Other conservation action | Result |
| Whole area of site (>90%) covered by appropriate conservation designation | 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 | high |
| Protected area (PA) | PA designation | PA area (ha) | Relationship of PA with IBA | Overlap of PA with IBA (ha) |
|---|---|---|---|---|
| Excelsior Protected Environment | Protected Environment | 2,103 | protected area overlaps with site | 0 |
| Coleford Nature Reserve | Nature Reserve | 1,272 | protected area overlaps with site | 2,000 |
| Habitat (IUCN level 1) | Habitat detail | Extent (% of site) |
|---|---|---|
| Wetlands (inland) | - | |
| Shrubland | - | |
| Forest | - | |
| Grassland | Grassland - montane | - |
| Land-use | Extent (% of site) |
|---|---|
| nature conservation and research | - |
| tourism/recreation | - |
Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Greater Ingwangwana River. Downloaded from
http://datazone.birdlife.org/site/factsheet/greater-ingwangwana-river-iba-south-africa on 06/12/2023.
