Lake Corangamite Complex This is an IBA in danger! 

IBA Criteria

Year of most recent IBA criteria assessment: 2009

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Blue-billed Duck Oxyura australis NT unknown - 1,560 individuals A1, A4i
Musk Duck Biziura lobata LC unknown - 1,289 individuals A4i
Pink-eared Duck Malacorhynchus membranaceus LC unknown - 18,000 individuals A4i
Freckled Duck Stictonetta naevosa LC unknown - 730 individuals A4i
Black Swan Cygnus atratus LC unknown - 14,000 individuals A4i
Australian Shelduck Tadorna tadornoides LC unknown - 14,705 individuals A4i
Australian Shoveler Spatula rhynchotis LC unknown - 7,060 individuals A4i
Chestnut Teal Anas castanea LC unknown - 5,580 individuals A4i
Hoary-headed Grebe Poliocephalus poliocephalus LC unknown - 6,597 individuals A4i
Straw-necked Ibis Threskiornis spinicollis LC unknown - 90,000 individuals A4i
Banded Stilt Cladorhynchus leucocephalus LC non-breeding - 112,000 individuals A4i
Black-winged Stilt Himantopus himantopus LC unknown - 12,000 individuals A4i
Sharp-tailed Sandpiper Calidris acuminata LC non-breeding - 10,000 individuals A4i

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)
2018 very high very unfavourable 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
Invasive and other problematic species and genes invasive non-native/alien species/diseases - unspecified species happening now some of area/population (10-49%) slow but significant deterioration medium
Natural system modifications dams & water management/use - dams (size unknown) happening now whole area/population (>90%) moderate to rapid deterioration very high
Pollution agricultural & forestry effluents - nutrient loads 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) Saline lakes 0 0 good (> 90%) very poor (< 40%) not assessed

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Some of site covered (10-49%) A management plan exists but it is out of date or not comprehensive Very little or no conservation action taking place low
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Western District Lakes Ramsar Site, Wetland of International Importance 32,671 protected area overlaps with site 0
Milangil Lake W.R Nature Conservation Reserve 246 protected area overlaps with site 240
Lake Terangpom W.R Nature Conservation Reserve 220 protected area overlaps with site 213
Lake Murdeduke W.R Natural Features Reserve 1,495 protected area contained by site 1,500
Lake Cundare W.R Nature Conservation Reserve 301 protected area overlaps with site 290
Lake Bookar W.R Natural Features Reserve 480 protected area overlaps with site 473
Lake Beeac W.R Nature Conservation Reserve 674 protected area overlaps with site 672


IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) Ephemeral, Freshwater lakes & pools, Saline lakes, Salt marshes -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
nature conservation and research -
fisheries/aquaculture -
hunting -
water management -
For further information about the land use classification please click here.

Land ownership
Most managed by Parks Victoria. Lakes Beeac, Bookaar, Cundare, Milangil, Murdeduke and Terangpom are State Wildlife Reserves. Lakes Colongulac, Corangamite and Gnarpurt are Lake Reserves. Lake Thurrumbong is a State Game Reserve. Cundare Pool/Lake Martin and Lough Calvert are public land managed by Southern Rural Water.

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Lake Corangamite Complex. Downloaded from on 06/08/2020.