ZA078
Olifants river estuary


IBA Criteria

Year of most recent IBA criteria assessment: 1998

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Ludwig's Bustard Neotis ludwigii EN resident 1998 present A3
Karoo Bustard Heterotetrax vigorsii LC resident 1998 present A3
Curlew Sandpiper Calidris ferruginea NT winter - 2,131-5,362 individuals A4i
Karoo Lark Calendulauda albescens LC resident 1998 present A3
Namaqua Warbler Phragmacia substriata LC resident 1998 present A3
Layard's Warbler Curruca layardi LC resident 1998 present A3
Karoo Chat Emarginata schlegelii LC resident 1998 present A3
Sickle-winged Chat Emarginata sinuata LC resident 1998 present A3
Tractrac Chat Emarginata tractrac LC resident 1998 present A3
Black-headed Canary Serinus alario LC resident 1998 present A3

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2014 high near favourable low
Was the whole site covered? Yes State assessed by Habitat
Accuracy of information medium

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification annual & perennial non-timber crops - agro-industry farming happening now small area/few individuals (<10%) no or imperceptible deterioration low
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now some of area/population (10-49%) slow but significant deterioration medium
Biological resource use fishing & harvesting aquatic resources - unintentional effects: large scale happening now small area/few individuals (<10%) no or imperceptible deterioration low
Climate change and severe weather drought likely in long term (beyond 4 years) some of area/population (10-49%) slow but significant deterioration medium
Energy production and mining mining and quarrying happening now some of area/population (10-49%) moderate to rapid deterioration high
Energy production and mining renewable energy likely in short term (within 4 years) small area/few individuals (<10%) slow but significant deterioration low
Human intrusions and disturbance recreational activities happening now some of area/population (10-49%) slow but significant deterioration medium
Natural system modifications dams & water management/use - large dams happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution agricultural & forestry effluents - herbicides and pesticides happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution domestic & urban waste water - sewage happening now some of area/population (10-49%) slow but significant deterioration medium
Residential and commercial development commercial and industrial development likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium
Residential and commercial development housing and urban areas happening now some of area/population (10-49%) slow but significant deterioration medium
Residential and commercial development tourism and recreation areas happening now some of area/population (10-49%) moderate to rapid deterioration high
Transportation and service corridors roads and railroads happening now some of area/population (10-49%) slow but significant deterioration medium

Condition of habitat (state)
Habitat Habitat Detail Reference Area (ha) Actual Area (ha) % of habitat remaining % of carrying capacity (overall) Result
Wetlands (inland) Estuarine waters 0 0 good (> 90%) moderate (70-90%) near favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Little/none of site covered (<10%) A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species Some limited conservation initiatives are in place low
For more information about IBA monitoring please click here

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Shrubland Shrubland - Cape (fynbos) -
Wetlands (inland) Estuarine waters -
Grassland -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
urban/industrial/transport -
nature conservation and research -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Olifants river estuary. Downloaded from http://www.birdlife.org on 25/06/2022.