ZA045
Chelmsford Nature Reserve


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
Corncrake Crex crex LC winter - present A1
Blue Crane Anthropoides paradiseus VU resident - present A1
Blue Bustard Eupodotis caerulescens NT resident - present A1
Southern Bald Ibis Geronticus calvus VU resident - 40-60 breeding pairs A1, A4i
Southern Bald Ibis Geronticus calvus VU non-breeding - 80-150 individuals A4i
Black Harrier Circus maurus EN resident - present A1
Ground Woodpecker Geocolaptes olivaceus NT resident - present A1

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)
2013 high not assessed high
Was the whole site covered? Yes State assessed by unset
Accuracy of information medium

Threats to the site (pressure)
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
Biological resource use fishing & harvesting aquatic resources - unintentional effects: subsistence/small scale happening now some of area/population (10-49%) slow but significant deterioration medium
Human intrusions and disturbance work and other activities happening now whole area/population (>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%) slow but significant deterioration medium
Natural system modifications dams & water management/use - large dams likely in long term (beyond 4 years) some of area/population (10-49%) moderate to rapid deterioration medium
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 - type unknown/unrecorded happening now majority/most of area/population (50-90%) slow but significant deterioration high
Pollution excess energy - noise pollution happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution garbage & solid waste happening now some of area/population (10-49%) slow but significant deterioration medium
Residential and commercial development housing and urban areas happening now small area/few individuals (<10%) slow but significant deterioration low
Residential and commercial development tourism and recreation areas happening now majority/most of area/population (50-90%) slow but significant deterioration high
Transportation and service corridors utility & service lines likely in long term (beyond 4 years) 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
Grassland Grassland - montane 0 0 poor (40-69%) moderate (70-90%) very unfavourable

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Geronticus calvus Southern Bald Ibis 150 80 individuals 54 unfavourable

Conservation actions taken at site (response)
Conservation Designation Management Planning 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 The conservation measures needed for the site are being comprehensively and effectively implemented high
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Chelmsford Public Resort Nature Reserve Nature Reserve 6,103 protected area contains site 5,984

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Grassland Grassland - montane -
Artificial/Terrestrial -
For further information about the habitat classification please click here.

Land use

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


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Chelmsford Nature Reserve. Downloaded from http://www.birdlife.org on 29/01/2022.