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

The site was identified as important in 2014 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
Wrybill Anarhynchus frontalis	VU	breeding	1967-2007	25-41 individuals	A1
Black-billed Gull Larus bulleri	NT	breeding	1967-2007	129-352 breeding pairs	A1
Black-fronted Tern Chlidonias albostriatus	EN	breeding	1967-2010	34-73 breeding pairs	A1

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2014) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2014. The most recent assessment (2014) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Invasive and other problematic species and genes	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Climate change and severe weather	likely in short term (within 4 years)	some of area/population (10-49%)	moderate to rapid deterioration	medium
Human intrusions and disturbance	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Natural system modifications	happening now	some of area/population (10-49%)	slow but significant deterioration	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Not assessed	Not assessed	Not assessed	not assessed

Year	Protected Area	Designation	% overlap with IBA
1958	Routeburn	Scenic Reserve	<1
1970	Diamond Lake & Lake Reid	Government Purpose Reserve	4
1977	Hillocks Kame Field	Conservation Covenant	1
1977	Routeburn Field	Conservation Covenant	<1
1978	Glenorchy Lagoon	Government Purpose Reserve	1
1987	Pt Run 701	Stewardship Area	4
1987	Rees River	Stewardship Area	1
1987	Kinloch Foreshore Reserve	Stewardship Area	<1
1987	Rees Valley Road	Stewardship Area	<1
1987	Glenorchy Foreshore	Stewardship Area	<1
1987	Access to Dart River	Stewardship Area	<1
1987	Kinloch Wetlands	Stewardship Area	<1
1987	Dart Beach	Stewardship Area	3
1987	Dart Bridge	Stewardship Area	1
1987	Woodbine Island	Stewardship Area	1
1990	Te Wahipounamu – South West New Zealand	World Heritage Site (natural or mixed)	15
1993	Dart Island	Scenic Reserve	<1
1998	Springfield Stream & Wetland	Conservation Covenant	<1
1998	Red Beech Forest	Conservation Covenant	<1

Habitat1	Habitat detail	% of IBA
Grassland		major (>10)
Introduced vegetation		major (>10)
Shrubland		major (>10)
Wetlands (inland)		major (>10)
Forest		minor (<10)

1. IUCN Habitat classification.

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Dart Rees Rivers (New Zealand). Downloaded from https://datazone.birdlife.org/site/factsheet/dart-rees-rivers-iba-new-zealand on 22/11/2024.