Franklin Sound Islands (23988)
Australia, Australasia

Site overview

KBA status: confirmed

Global KBA criteria: B1, D1a

Year of last assessment: 2009

National site name: Franklin Sound Islands

Central coordinates: Latitude: -40.2873, Longitude: 148.2007

System: marine, terrestrial

Elevation (m): 0 to 168

Area of KBA (km²): 25.05735

Protected area coverage (%): 73.94

KBA classification: Global

Legacy site: Yes

Site details

Site description: This IBA consists of the important islands in Franklin Sound, between Flinders Island, and Cape Barren Island off north-east Tasmania. These include Woody (=Anderson), Tin Kettle and Vansittart, which are important for Cape Barren Goose, and some smaller intervening islands which support large numbers of Short-tailed Shearwater (Little Dog Island, Great Dog Island, Little Green Island, Puncheon Island, Pelican Island), White-faced Storm-Petrel (South-east Great Dog Islet and Spences Reefs) and/or Pacific Gull (Neds, Oyster Rocks, Mid Woody Islet, Briggs Islet, Ram Island). Woody (=Anderson) Island is 166 ha of Crown Land with little value for bird species other than Cape Barren Goose. It is joined at low tide to Little Anderson Island, which is 13 ha of Crown Land. Mid Woody Islet is a 0.7 ha low grass and herb covered island of Crown Land. Tin Kettle is 176 ha of Crown Land with introduced pasture grasses and scrub and which is leased as a farm. Oyster Rocks is a 5 ha rocky Conservation Area. Neds Reef is 3 ha of granite islets on Crown Land. Little Dog is a 83 ha Game Reserve leased for harvesting of shearwater, dominated by ungrazed Poa poiformis grassland. Great Dog is a 354 ha privately owned grazing island with forest remnants amongst grassland. Briggs Islet is a 3.4 ha grassy Conservation Area. Little Green island is a 87 ha Conservation Area with a private lease for farming and shearwater harvesting. Spences Reefs is 0.65 ha of Crown Land. Ram Island is a 1 ha grassy private property. Puncheon Island is a 18 ha private property used for grazing. Pelican Island and Pelican Reef are collectively 7 ha of grassy and rocky Crown Land. Vansittart Island is a 807 ha private and leasehold island used for cattle grazing and has some scrub and forest remnants. Cape Barren Geese use these islands as they have short grassland herbage suitable for grazing, not dense tussocks which cover many other nearby islands. In the non-breeding season, most geese move to agricultural land on Flinders Island where a total of 5000-10,000 geese can be found in the Australian summer. The geese are distributed unpredictably across Flinders Island depending on the distribution of agricultural crops suitable for grazing. Licences to shoot small numbers of birds are issued in January/February to move remove birds from sensitive crops; these fields have not been designated as an IBA. Great Dog is a developing Indigenous Protected Area project.

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: Fairy Terns have been recorded on Long Island and Briggs Island in 1986 (Skira & Brothers 1987; Brothers et al. 2001) and 50 pairs of White-fronted Terns bred unsuccessfully on Briggs Islet in 2002 (Britton and Skira 2004). 50 pairs of White-fronted Tern reported at Briggs Islet in 2002 and 21 pairs in 1986 are regionally significant (although numbers at this location are normally much lower). The IBA also supports large numbers of Little Penguin: Neds Reef (50 pairs), Oyster Rocks (40 pairs), Anderson Island (100 to 150 pairs), Little Anderson Island (30 pairs), Mid Woody Islet (>30 burrows), Tin Kettle Island (100 pairs), Little Dog Island (up to 100 pairs), Briggs Islet (397 pairs), Little Green Island (50 pairs), Spences Reefs (100 pairs), Ram Island (30 pairs), Vansittart Island (160 pairs); and Pied Oystercatcher: Anderson Island (several nests and many feeding on tidal mudflats), Little Anderson Island (one pair), Tin Kettle Island (one nest), Little Dog Island (two pairs and one non-breeding individual), Great Dog Island (six pairs), Little Green Island (recorded), Spences Reefs (one pair), Pelican Island (five individuals), Vansittart Island (seven pairs) (Brothers et al. 2001). Terrestrial species recorded in the island group include the Australian cool/temperate biome-restricted Striated Fieldwren (Atlas of Australian Birds database).

Other site values: Oyster Rocks West (Conservation Area), Oyster Rocks (Conservation Area), Anderson Island (Nature Reserve), Mid Woody Islet (non-allocated Crown Land), Tin Kettle (non-allocated Crown Land, lease), Little Dog Island (Game Reserve and private property leased annually), Great Dog Island (private), Briggs Islet (Conservation Area), Little Green Island (Conservation Area and leasehold), Ram Island (private), Puncheon Island (freehold), Pelican Island (Game Reserve and non-allocated Crown Land),and Vansittart islands(freehold and leasehold). Many islands are private and permission must be gained before visiting.

Habitats

Land use: hunting | nature conservation and research | rangeland/pastureland

IUCN Habitat	Coverage %	Habitat detail
Grassland	38
Shrubland	4
Artificial - Terrestrial	38
Marine Coastal/Supratidal	19

Threats

Summary of threats to biodiversity at KBA: Ensure suitable land-management on grazed islands of Badger, Tin Kettle and Vansittart. Ongoing monitoring to ensure that shooting licences do not impact the goose population when on Flinders Island and that muttonbird are not over-harvested. Consider cat and rat eradications.

Threat level 1	Threat level 2	Threat level 3	Timing
Agriculture & aquaculture	Livestock farming & ranching	Agro-industry grazing, ranching or farming	Ongoing
Biological resource use	Fishing & harvesting aquatic resources	Unintentional effects: large scale (species being assessed is not the target) [harvest]	Ongoing
Natural system modifications	Fire & fire suppression	Increase in fire frequency/intensity	Ongoing
Invasive & other problematic species, genes & diseases	Invasive non-native/alien species/diseases	Named species	Ongoing
Human intrusions & disturbance	Recreational activities		Ongoing

Additional information

References: Britton, P. and Skira, I. (2004) Breeding White-fronted Terns in Tasmania. Tasmanian Bird Report 30: 14-15. Brothers, N., Pemberton, D., Pryor, H. & Halley, V. (2001) Tasmania's Offshore Islands: seabirds and other natural features. Tasmanian Museum and Art gallery: Hobart. Brothers, N. P. and Skira, I. J. (1990) Spences Reef, Furneaux Group, Tasmania. Corella 14: 67-78. Skira, I. J. and Brothers, N. P. (1987) Briggs Islet, Furneaux Group, Tasmania. Corella 11: 79-80. Skira, I.J., Brothers, N.P. & Pemberton, D. (1996) Distribution, abundance and conservation status of Short-tailed Shearwaters Puffinus tenuirostris in Tasmania, Australia. Marine Ornithology 24: 1-14.