|Most recent IBA monitoring assessment|
|Year of assessment||Threat score (pressure)||Condition score (state)||Action score (response)|
|2008||high||not assessed||not assessed|
|For more information about IBA monitoring please click here|
This small island is 17 km south-east of Port Arthur and 13 km south of Hippolyte Rocks (which are also designated as an IBA) off the south-east coast of Tasman Peninsula. The island is oval-shaped, surrounded by rugged columnar cliffs up to 60 m high, rising to meet boulder-strewn slopes and a gently sloping 300 m high plateau. The Australian Maritime Safety Authority (AMSA) has a 25-year lease on a lighthouse and helipad on the island. Other infrastructure includes three lighthouse keepers’ residences, haulage way remnants and sheds. The management plan for Tasman National Park allows for low impact, low level, non-intrusive visitor usage of the area.
The 28 species recorded include Peregrine Falcon, Flame Robin, Wedge-tailed Eagle, 300 pairs of Little Penguin (although a count in 2006 suggests numbers of this species may have declined in response to predation by cats) and 6000 pairs of Short-tailed Shearwater. It may also support the largest numbers of the near threatened Sooty Shearwater in Australia (1000 breeding pairs reported by Brothers et al. (2001) but this estimate likely to be of poor accuracy).
Non-bird biodiversity: Metallic, White's and Ocellated Skink occur, while She-oak Skink is common. Increasing numbers of Australian Fur Seals and small numbers of New Zealand Fur Seals occupy ledges and the rocky western shore. Poa poiformis, Tetragonia implexicoma, Acacia verticillata, Banksia marginata and Leptospermum scoparium are dominant amongst the approximately 100 plant species recorded. Previously grazed by livestock, native vegetation is now flourishing, and the plateau area again supports extensive areas of shrubs.
BirdLife International (2019) Important Bird Areas factsheet: Tasman Island. Downloaded from http://www.birdlife.org on 19/02/2019.