Data Zone
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 |
|---|---|---|---|---|---|
| Australasian Bittern Botaurus poiciloptilus | VU | resident | - | present | A1 |
| Black-billed Gull Larus bulleri | NT | breeding | 2009-2012 | 35-45 breeding pairs | A1 |
| Black-fronted Tern Chlidonias albostriatus | EN | breeding | 2009-2012 | 211-587 breeding pairs | A1, A4i |
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.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2014 | not assessed | high | not assessed |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | unset | - | |
| 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 |
|---|---|---|---|
| 1920 | Ohau Terminal Moraine | Scenic Reserve | 1 |
| 2003 | Ben Ohau | Stewardship Area | <1 |
| 2004 | Lake Ruataniwha | Stewardship Area | 1 |
| 2015 | Maryburn | Stewardship Area | 1 |
| Habitat1 | Habitat detail | % of IBA |
|---|---|---|
| Artificial/Aquatic & Marine | major (>10) | |
| Grassland | major (>10) | |
| Introduced vegetation | major (>10) | |
| Shrubland | major (>10) | |
| Wetlands (inland) | major (>10) |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Ohau Pukaki Tekapo Rivers (New Zealand). Downloaded from
https://datazone.birdlife.org/site/factsheet/ohau-pukaki-tekapo-rivers-iba-new-zealand on 22/11/2024.