The Tasman Island, part of the Tasman Island Group, is an oval

island An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island ...

with an area of , lying close to the south-eastern coast of

Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...

, Australia. The island is located in the

Tasman Sea The Tasman Sea ( Māori: ''Te Tai-o-Rēhua'', ) is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer ...

, situated off the

Tasman Peninsula The Tasman Peninsula, officially Turrakana / Tasman Peninsula, is a peninsula located in south-east Tasmania, Australia, approximately by the Arthur Highway, south-east of Hobart. The Tasman Peninsula lies south and west of Forestier Peninsula ...

and is contained within the

Tasman National Park The Tasman National Park is a national park in eastern Tasmania, Australia, approximately east of Hobart. The park is situated on part of both the Forestier and Tasman peninsulas and encompasses all of Tasman Island. History Whaling a ...

. The island is a plateau surrounded by steep

dolerite Diabase (), also called dolerite () or microgabbro, is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine-grain ...

cliffs, with its highest point above sea level (asl) and an average plateau height of asl. It is the site of the Tasman Island Lighthouse and

weather station A weather station is a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate. The measurements taken include tempera ...

, which has been automated since 1976 and unstaffed since 1977.

Flora and fauna

Plants

The island was once thickly forested. The forest has largely disappeared as a result of cutting the trees for firewood and of intense

fires Fire is the rapid oxidation of a material (the fuel) in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. At a certain point in the combustion reaction, called the ignition point, flames are pr ...

. When the lighthouse was staffed the keepers kept

livestock Livestock are the domesticated animals raised in an agricultural setting to provide labor and produce diversified products for consumption such as meat, eggs, milk, fur, leather, and wool. The term is sometimes used to refer solely to animal ...

, including

cattle Cattle (''Bos taurus'') are large, domesticated, cloven-hooved, herbivores. They are a prominent modern member of the subfamily Bovinae and the most widespread species of the genus ''Bos''. Adult females are referred to as cows and adult ma ...

sheep Sheep or domestic sheep (''Ovis aries'') are domesticated, ruminant mammals typically kept as livestock. Although the term ''sheep'' can apply to other species in the genus '' Ovis'', in everyday usage it almost always refers to domesticated ...

and

draught horses A draft horse (US), draught horse (UK) or dray horse (from the Old English ''dragan'' meaning "to draw or haul"; compare Dutch ''dragen'' and German ''tragen'' meaning "to carry" and Danish ''drage'' meaning "to draw" or "to fare"), less ofte ...

, and maintained

grassland A grassland is an area where the vegetation is dominated by grasses ( Poaceae). However, sedge ( Cyperaceae) and rush ( Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur na ...

for their grazing. Areas of grassland remain along with other vegetation communities of

heath A heath () is a shrubland habitat found mainly on free-draining infertile, acidic soils and characterised by open, low-growing woody vegetation. Moorland is generally related to high-ground heaths with—especially in Great Britain—a cooler a ...

y scrub, regenerating scrub,

sheoak The Casuarinaceae are a family of dicotyledonous flowering plants placed in the order Fagales, consisting of four genera and 91 species of trees and shrubs native to eastern Africa, Australia, Southeast Asia, Malesia, Papuasia, and the Pacific ...

woodland A woodland () is, in the broad sense, land covered with trees, or in a narrow sense, synonymous with wood (or in the U.S., the ''plurale tantum'' woods), a low-density forest forming open habitats with plenty of sunlight and limited shade (se ...

, sedgeland and

coast The coast, also known as the coastline or seashore, is defined as the area where land meets the ocean, or as a line that forms the boundary between the land and the coastline. The Earth has around of coastline. Coasts are important zones in ...

al mosaic. An important plant present is the rare Cape Pillar Sheoak (''

Allocasuarina crassa ''Allocasuarina crassa'', commonly known as Cape Pillar sheoak, is a species of flowering plant in the family Casuarinaceae and is endemic to a small area in far south-eastern Tasmania. It is a low shrub to small tree that is monoecious or di ...

'').

Birds

Tasman Island is a very important breeding site for

fairy prion The fairy prion (''Pachyptila turtur'') is a small seabird with the standard prion plumage of blue-grey upperparts with a prominent dark "M" marking and white underneath. The sexes are alike. This is a small prion of the low subantarctic and sub ...

s, with an estimated 300,000-700,000 pairs, making it the largest such

colony In modern parlance, a colony is a territory subject to a form of foreign rule. Though dominated by the foreign colonizers, colonies remain separate from the administration of the original country of the colonizers, the '' metropolitan state' ...

in Tasmania, and possibly in Australia. It has been identified as an Important Bird Area (IBA) by BirdLife International because it supports over 1% of the world population of the species. Other recorded breeding

seabird Seabirds (also known as marine birds) are birds that are adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the same enviro ...

species are little penguin (now extinct there as a breeding species), short-tailed shearwater and

sooty shearwater The sooty shearwater (''Ardenna grisea'') is a medium-large shearwater in the seabird family Procellariidae. In New Zealand, it is also known by its Māori name , and as muttonbird, like its relatives the wedge-tailed shearwater (''A. pacificus ...

. The

swamp harrier The swamp harrier (''Circus approximans''), also known as the Australasian marsh harrier, Australasian harrier or swamp-hawk, is a large, slim bird of prey widely distributed across Australasia. In New Zealand it is also known as the harrier haw ...

has also bred on the island. The breeding seabirds were preyed on by a

feral cat A feral cat or a stray cat is an unowned domestic cat (''Felis catus'') that lives outdoors and avoids human contact: it does not allow itself to be handled or touched, and usually remains hidden from humans. Feral cats may breed over dozens ...

population estimated at 50, feeding mainly on fairy prions and taking about 50,000 birds annually. The cats were eradicated by a baiting, trapping and hunting program carried out in May 2010.Restoring the Natural Values of Tasman Island
/ref>

Other animals

Australian Australian(s) may refer to: Australia * Australia, a country * Australians, citizens of the Commonwealth of Australia ** European Australians ** Anglo-Celtic Australians, Australians descended principally from British colonists ** Aboriginal A ...

and

New Zealand fur seal ''Arctocephalus forsteri'' (common names include the Australasian fur seal, South Australian fur seal, New Zealand fur seal, Antipodean fur seal, or long-nosed fur seal) is a species of fur seal found mainly around southern Australia and New Z ...

s use the rocky shore as a haul-out site, and the latter species has bred there in small numbers.

Humpback whale The humpback whale (''Megaptera novaeangliae'') is a species of baleen whale. It is a rorqual (a member of the family Balaenopteridae) and is the only species in the genus ''Megaptera''. Adults range in length from and weigh up to . The hu ...

s pass through the surrounding waters. Reptiles recorded from the island include the

metallic skink :''"Metallic skink" may also refer to the garden skink ( Lampropholis delicata)''. ''Carinascincus metallicus'', the metallic cool-skink or metallic skink is a species of skink in the family Scincidae. It is endemic to Australia, found in sout ...

White's skink White's skink (''Liopholis whitii)'', also known commonly as White's rock skink, is a species of lizard in the family Scincidae. The species is endemic to Australia. Etymology The specific name, ''whitii'', is in honour of Irish surgeon and ...

, spotted skink and

she-oak skink The she-oak skink (''Cyclodomorphus casuarinae'') is a large, long-tailed, snake-like skink endemic to Tasmania, Australia. It is viviparous Among animals, viviparity is development of the embryo inside the body of the parent. This is o ...

. A notable

invertebrate Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column (commonly known as a ''backbone'' or ''spine''), derived from the notochord. This is a grouping including all animals apart from the chordate ...

, so far recorded only from Tasman Island, is the

cricket Cricket is a bat-and-ball game played between two teams of eleven players on a field at the centre of which is a pitch with a wicket at each end, each comprising two bails balanced on three stumps. The batting side scores runs by str ...

'' Tasmanoplectron isolatum''.Bryant, S.L.; and Shaw, J. (Eds). (2006). ''Tasman Island: 2005 flora and fauna survey''. Hamish Saunders Memorial Trust, New Zealand and Biodiversity Conservation Branch, DPIW, Hobart, Nature Conservation Report Series 06/01.

/ref>

Climate

Gallery

File:TasmanIsland2.jpg, Showing lighthouse and keepers' cottages. File:Fairy Prion with egg.jpg, The island is a major breeding site for fairy prions. File:Tasman Island, c.1987.jpg, The Tasman Island with the

in the background, ''ca.'' 1987. File:Tasman Island, Tasmania, Australia.jpg, Tasman Island 2017

References

External links

Restoring the Natural Values of Tasman Island
{{South East Tasmania , state=autocollapse Islands of Tasmania Protected areas of Tasmania Important Bird Areas of Tasmania Tasman National Park