• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as important in 2009 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 List1	Season	Year(s)	Size	IBA criteria
Musk Duck Biziura lobata	LC	non-breeding	1981-2008	2,000 individuals	A4i
Banded Stilt Cladorhynchus leucocephalus	LC	non-breeding	1981-2008	10,000 individuals	A4i
Hooded Plover Thinornis cucullatus	VU	non-breeding	1995-1999	43-606 adults	A1, A4i

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2009) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2019) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Marine Coastal/Supratidal	moderate (70-90%)	moderate (70-90%)	unfavourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happening now	whole area/population (>90%)	slow but significant deterioration	high
Pollution	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high
Invasive and other problematic species and genes	happening now	whole area/population (>90%)	slow but significant deterioration	high
Biological resource use	happening now	some of area/population (10-49%)	no or imperceptible deterioration	low
Human intrusions and disturbance	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 areas	Management plan	Other action	Result
Most of site (50-90%) covered (including the most critical parts for important bird species)	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	medium

Year	Protected Area	Designation	% overlap with IBA
1914	Woody Lake	Nature Reserve	8
1953	Mullet Lake	Nature Reserve	14
1973	Lake Warden	Nature Reserve	15
1973	Unnamed WA32259	Nature Reserve	<1
1990	Lake Warden System	Ramsar Site, Wetland of International Importance	36

Habitat1	Habitat detail	% of IBA
Marine Coastal/Supratidal		major (>10)

1. IUCN Habitat classification.

Land use	% of IBA
nature conservation and research	major (>10)
rangeland/pastureland	minor (<10)

The IBA overlaps with four nature reserves managed by the Department of Environment and Conservation but also includes private land e.g. north of Mullet Lake.

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Warden System (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/lake-warden-system-iba-australia on 23/11/2024.