East Borden (26966)
Australia, Australasia
Site overview
KBA status: confirmed
Global KBA criteria: A1c
Year of last assessment: 2009
National site name: East Borden
Central coordinates: Latitude: -34.2500, Longitude: 118.5008
System: terrestrial
Elevation (m): 230 to 250
Area of KBA (km2): 4.6312
Protected area coverage (%): 54.28
KBA classification: Global
Legacy site: Yes
Site details
Site description: The East Borden IBA supports at least 1% of the breeding population of Carnaby's Black-Cockatoo, with nesting trees and feeding habitat distributed over two private properties, road reserves and a nature reserve in the Great Southern region of Western Australia. The IBA boundaries are defined by known areas of suitable nesting habitat and associated feeding habitat. Future surveys may identify adjacent areas supporting cockatoos that can be included in the IBA at a later time. Food resources for breeding birds include proteaceous plants in native kwongan heath the seeds of weed species such as wild radish and wild geranium. The IBA consists of all suitable native vegetation and isolated nesting trees within the identified area. Pasture, crops, non-native plants and weed populations are not included in the IBA. The area has a Mediterranean climate.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance that meets the thresholds for at least one criterion described in the Global Standard for the Identification of KBAs.
Additional biodiversity: General bird survey data are not available for this IBA. The biome-restricted Red-capped Parrot and Rufous Treecreeper have been observed in the IBA (W. Zadow pers. comm. 2009) and other biome-restricted species are likely to occur (C. Gole pers. comm. 2009).
Other site values: Private; state government (Department of Environment and Conservation). Contact Birds Australia Western Australia's Carnaby's Black-Cockatoo Recovery Project for access details related to private land.
Habitats
Land use: nature conservation and research | rangeland/pastureland
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Forest | 95 | |
| Shrubland | 5 |
Threats
Summary of threats to biodiversity at KBA: Exclusion of stock and native herbivores by fencing and weed control around nesting trees and in native vegetation to promote regeneration. Nest competitor control, planting appropriate native food plant species near nesting areas. Mitigation of the effects of rising groundwater and changed hydrological regimes.
| Threat level 1 | Threat level 2 | Threat level 3 | Timing |
|---|---|---|---|
| Agriculture & aquaculture | Livestock farming & ranching | Agro-industry grazing, ranching or farming | Ongoing |
| Invasive & other problematic species, genes & diseases | Problematic native species/diseases | Named species | Ongoing |
| Natural system modifications | Other ecosystem modifications | Ongoing |
Additional information
References: Birds Australia Western Australia (2008) Carnaby's Black-Cockatoo Recovery Project Database. Unpublished data. Data extracted 2008.
Contributors: Cheryl Gole (WWF-Australia and Birds Australia Western Australia) and Raana Scott (Birds Australia) prepared the nomination. Kellie Mantle (Department of Environment and Conservation) kindly provided mapping assistance. Wayne Zadow provided other data and assistance.