Tasmania, the largest island of Australia, has a landmass of and is located directly in the pathway of the notorious "
Roaring Forties" wind that encircles the globe. To its north, it is separated from mainland Australia by
Bass Strait. Tasmania is the only Australian state that is not located on the Australian mainland. About south of Tasmania island lies the
George V Coast of
Antarctica. Depending on which
borders of the oceans are used, the island can be said to be either surrounded by the Southern Ocean, or to have the Pacific on its east and the Indian to its west. Still other definitions of the ocean boundaries would have Tasmania with the
Great Australian Bight to the west, and the
Tasman Sea to the east. The southernmost point on mainland Tasmania is approximately at
South East Cape, and the northernmost point on mainland Tasmania is approximately in
Woolnorth / Temdudheker near
Cape Grim / Kennaook. Tasmania lies at similar latitudes to
Te Waipounamu / South Island of New Zealand and parts of
Patagonia in South America. Areas at equivalent latitudes in the Northern Hemisphere include
Hokkaido in Japan,
Northeast China (
Manchuria),
Central Italy, and United States cities such as
New York and
Chicago. towards
Antarctica, the
Aurora australis can sometimes be seen. The most mountainous region is the
Central Highlands area, which covers most of the central western parts of the state. The
Midlands located in the central east, is fairly flat, and is predominantly used for agriculture, although farming activity is scattered throughout the state. Tasmania's tallest mountain is
Mount Ossa at . Much of Tasmania is still densely forested, with the
Southwest National Park and neighbouring areas holding some of the last temperate rain forests in the
Southern Hemisphere. The
Tarkine, containing
Savage River National Park located in the island's far north west, is the largest
temperate rainforest area in Australia covering about . With its rugged topography, Tasmania has a great number of rivers. Several of Tasmania's largest rivers have been dammed at some point to provide
hydroelectricity. Many rivers begin in the Central Highlands and flow out to the coast. Tasmania's major population centres are mainly situated around
estuaries (some of which are named rivers). Tasmania is in the shape of a downward-facing triangle, likened to a shield, heart, or face. It consists of the main island as well as at least a thousand neighbouring islands within the state's jurisdiction. The largest of these are
Flinders Island in the
Furneaux Group of
Bass Strait,
King Island in the west of Bass Strait,
Cape Barren Island south of Flinders Island,
Bruny Island separated from Tasmania by the
D'Entrecasteaux Channel,
Macquarie Island 1,500 km from Tasmania, and
Maria Island off the east coast. Tasmania features a number of separated and continuous mountain ranges. The majority of the state is defined by a significant
dolerite exposure, though the
western half of the state is older and more rugged, featuring
buttongrass plains, temperate rainforests, and
quartzite ranges, notably
Federation Peak and
Frenchmans Cap. The presence of these mountain ranges is a primary factor in the
rain shadow effect, where the western half receives the majority of rainfall, which also influences the types of vegetation that can grow. The Central Highlands feature a large plateau which forms a number of ranges and escarpments on its north side, tapering off along the south, and radiating into the highest mountain ranges in the west. At the north-west of this, another plateau radiates into a system of hills where
takayna / Tarkine is located. The
Interim Biogeographic Regionalisation for Australia (IBRA) divides Tasmania into 9 bioregions:
Ben Lomond,
Furneaux,
King,
Central Highlands,
Northern Midlands,
Northern Slopes,
Southern Ranges,
South East, and
West. Tasmania's environment consists of many different biomes or communities across its different regions. It is the most forested state in Australia, and preserves the country's largest areas of
temperate rainforest. A distinctive type of
moorland found across the west, and particularly south-west of Tasmania, are
buttongrass plains, which are speculated to have been expanded by
Tasmanian Aboriginal burning practices. Tasmania also features a diverse
alpine garden environment, such as
cushion plant. Highland areas receive consistent
snowfall above ~1,000 metres every year, and due to cold air from
Antarctica, this level often reaches 800 m, and more occasionally 600 or 400 metres. Every five or so years, snow can form at sea level. This environment gives rise to the
cypress forests of the
Central Plateau and mountainous highlands. In particular, the
Walls of Jerusalem with large areas of rare
pencil pine, and its closest relative
King Billy pine. On the
West Coast Range and partially on
Mount Field, Australia's only winter-
deciduous plant,
deciduous beech is found, which forms a carpet or
krummholz, or very rarely a 4-metre tree. Tasmania features a high concentration of
waterfalls. These can be found in small creeks, alpine
streams,
rapid rivers, or off precipitous plunges. Some of the tallest waterfalls are found on mountain
massifs, sometimes at a 200-metre cascade. The most famous and most visited waterfall in Tasmania is
Russell Falls in
Mount Field due to its proximity to
Hobart and stepped falls at a total height of 58 metres. Tasmania also has a large number of
beaches, the longest of which is
Ocean Beach on the
West Coast at about 40 kilometres. Wineglass Bay in
Freycinet on the east coast is a well-known
landmark of the state. The
Tasmanian temperate rainforests cover a few different types. These are also considered distinct from the more common wet
sclerophyll forests, though these
eucalypt forests often form with
rainforest understorey and
ferns (such as
tree-ferns) are not usually absent. Rainforest found in deep
gullies are usually difficult to traverse due to dense understorey growth, such as from
horizontal (Anodopetalum biglandulosum). Higher-elevation forests (~500 to 800 m) have smaller ground vegetation and are thus easier to walk in. The most common rainforests usually have a 50-metre
canopy and are varied by environmental factors. Emergent growth usually comes from
eucalyptus, which can tower another 50 metres higher (usually less), providing the most common choice of nesting for giant
wedge-tailed eagles. The human environment ranges from urban or industrial development to farming or grazing land. The most cultivated area is the
Midlands, where it has suitable soil but is also the driest part of the state. Tasmania's
insularity was possibly detected by Captain
Abel Tasman when he charted Tasmania's coast in 1642. On 5 December, Tasman was following the
east coast northward to see how far it went. When the land veered to the north-west at
Eddystone Point, he tried to keep in with it but his ships were suddenly hit by the
Roaring Forties howling through
Bass Strait. Tasman was on a mission to find the
Southern Continent, not more islands, so he abruptly turned away to the east and continued his continent-hunting. The next European to enter the strait was Captain
James Cook on
HMS Endeavour in April 1770. However, after sailing for two hours westward into the strait against the wind, he turned back east and noted in his journal that he was "doubtful whether they [i.e. Van Diemen's Land and New Holland] are one land or no". The strait was named after George Bass, after he and Matthew Flinders passed through it while circumnavigating Van Diemen's Land in the
Norfolk in 1798–99. At Flinders' recommendation, the Governor of New South Wales, John Hunter, in 1800 named the stretch of water between the mainland and Van Diemen's Land "Bass's Straits". Later it became known as Bass Strait. The existence of the strait had been suggested in 1797 by the master of Sydney Cove when he reached Sydney after deliberately grounding his foundering ship and being stranded on Preservation Island (at the eastern end of the strait). He reported that the strong south westerly swell and the tides and currents suggested that the island was in a channel linking the Pacific and southern Indian Ocean. Governor Hunter thus wrote to Joseph Banks in August 1797 that it seemed certain a strait existed.
Climate Tasmania has a relatively cool temperate climate compared to the rest of Australia, spared from the hot summers of the mainland and experiencing four distinct seasons. Summer is from December to February when the average maximum sea temperature is and inland areas around Launceston reach . Other inland areas are much cooler, with
Liawenee, located on the Central Plateau, one of the coldest places in Australia, ranging between in February. Autumn is from March to May, with mostly settled weather, as summer patterns gradually take on the shape of winter patterns. The winter months are from June to August and are generally the wettest and coldest months in the state, with most high lying areas receiving considerable snowfall. Winter maximums are on average along coastal areas and on the central plateau, as a result of a series of cold fronts from the
Southern Ocean. Inland areas receive regular freezes throughout the winter months. Spring is from September to November, and is an unsettled season of transition, where winter weather patterns begin to take the shape of summer patterns, although snowfall is still common up until October. Spring is generally the windiest time of the year with afternoon sea breezes starting to take effect on the coast.
Biodiversity s in
Hellyer Gorge, to the northeast of
Savage River National Park , Tasmania's state animal emblem Geographically and biologically isolated, Tasmania is known for its unique
endemic flora and fauna.
Flora Tasmania has
extremely diverse vegetation, from the heavily grazed grassland of the dry Midlands to the tall evergreen
eucalypt forest,
alpine heathlands and large areas of cool
temperate rainforests and moorlands in the rest of the state. Many species are unique to Tasmania, and some are related to species in South America and New Zealand through ancestors which grew on the supercontinent of
Gondwana, 50 million years ago.
Nothofagus gunnii, commonly known as Australian beech, is Australia's only temperate native deciduous tree and is found exclusively in Tasmania. Distinctive species of plant in Tasmania include: •
Eucalyptus regnans (mountain ash) – the
tallest flowering plant and hardwood in the world,
reaching 100 m (328 ft). •
Nothofagus cunninghamii (myrtle beech) – the most abundant temperate rainforest canopy species found in Tasmania. •
Nothofagus gunnii (deciduous beech) – Australia's only winter-deciduous tree. •
Atherosperma moschatum (blackheart sassafras) – a co-dominant rainforest tree with a nutmeg aroma. •
Lagarostrobos franklinii (Huon pine) – one of the oldest-lived tree species, and a self-preserving timber. •
Phyllocladus aspleniifolius (celery-top pine) – a celery-leaved conifer found in rainforests. •
Athrotaxis (Tasmanian cedar/redwood) – a genus comprising three extant species related to
sequoia found in Tasmania. •
Eucryphia lucida (leatherwood) – a prominent floral symbol of Tasmania and a unique
monofloral honey species.
Bush tucker Tasmania also has a number of
native edibles, known as
bush tucker in Australia. These plants were
foraged by the
Tasmanian Aboriginals and also used for other purposes, such as
construction. Unusual trees such as
cider gum (Eucalyptus gunnii) had their
manna used to make a
syrup or an
alcohol (
cider). Other trees such as
wattles (acacias) like
blackwood (Acacia melanoxylon) and
mimosa (Acacia dealbata) could have their
seeds eaten or crushed into a
powder. There are also many
berries such as
snowberry (Gaultheria hispida),
fruits such as
heartberry (Aristotelia peduncularis), and
vegetables such as
river mint (Mentha australis), though no
crops like
maize that are used for large production.
Fauna Tasmania has a large percentage of
endemism whilst featuring many types of animals found on mainland Australia. Many of these species, such as the
platypus, are larger than their mainland relatives. The island of Tasmania was home to the
thylacine, a
marsupial which resembled a
fossa or some say a wild dog. Known colloquially as the Tasmanian tiger for the distinctive striping across its back, it became extinct in mainland Australia much earlier because of competition by the
dingo, introduced in prehistoric times. Owing to persecution by farmers, government-funded bounty hunters and, in the final years, collectors for overseas museums, it appears to have been exterminated in Tasmania. The
Tasmanian devil became the
largest carnivorous marsupial in the world following the
extinction of the
thylacine in 1936 and is now found in the wild only in Tasmania. Tasmania was one of the last regions of Australia to be introduced to domesticated dogs. Dogs were brought from Britain in 1803 for hunting kangaroos and
emus. This introduction completely transformed Aboriginal society, as it helped them to successfully compete with European hunters and was more important than the introduction of guns for the Aboriginal people. Emus became extinct on Tasmania around 1865. Tasmania is a hotspot for
giant habitat trees and the large animal species that occupy them, notably the endangered
Tasmanian wedge-tailed eagle (Aquila audax fleayi), the
Tasmanian masked owl (Tyto novaehollandiae castanops), the
Tasmanian giant freshwater crayfish (Astacopsis gouldi), the
yellow wattlebird (Anthochaera paradoxa), the
green rosella (Platycercus caledonicus) and others. Tasmania is also home to the world's only three migratory parrots, the critically endangered
Orange-bellied parrot (Neophema chrysogaster), the
Blue-winged parrot (Neophema chrysostoma), and the fastest parrot in the world, the
swift parrot (Lathamus discolor). Tasmania has 12
endemic species of
bird in total.
Mycology Tasmania is a hotspot for
fungal diversity. The importance of fungi in Tasmania's ecology is often overlooked; nonetheless, they play a vital role in the natural vegetation cycle. Tasmania's southwestern wilderness hosts a rich diversity of alpine
lichens, with at least 162 documented species. The region's alpine lichen flora is particularly notable for its high level of endemism, with approximately 16% of species found nowhere else in the world. The area's cool
maritime climate, Precambrian geology, and extensive
peat formations create unique habitats for these organisms. The
lichen communities differ significantly from those found on Tasmania's eastern dolerite mountains, with the southwestern species showing stronger affinities to New Zealand and sub-Antarctic flora rather than to mainland Australia. Major lichen habitats in the alpine southwest include heathlands, alpine lawns,
feldmark (windswept rocky plateaus), and large rock outcrops, each supporting distinct assemblages of species. Some particularly diverse genera in the region include
Bunodophoron,
Cladia,
Cladonia,
Menegazzia,
Micarea,
Pertusaria,
Pseudocyphellaria,
Psoroma,
Siphula, and
Stereocaulon.
Conservation Like the rest of Australia, Tasmania suffers from an
endangered species problem. In particular, many important Tasmanian subspecies and world-significant species of
animal are classified as at risk in some way. A famous example is the
Tasmanian devil, which is endangered due to
devil facial tumour disease. Some species have already gone
extinct, primarily due to
human interference, such as in the case of the
thylacine or the
Tasmanian emu. In Tasmania, there are about 90 endangered, vulnerable, or threatened vertebrate species classified by the state or Commonwealth governments. Because of a reliance on roads and private vehicle transport, and a high concentration of animal populations divided by this development, Tasmania has the worst (per kilometre)
roadkill rate in the world, with 32 animals killed per hour and at least 300,000 per year.
Protected areas of Tasmania cover 21% of the island's land area in the form of
national parks. The
Tasmanian Wilderness World Heritage Area (TWWHA) was inscribed by
UNESCO in 1982, where it is globally significant because "most UNESCO World Heritage sites meet only one or two of the ten criteria for that status. The Tasmanian Wilderness World Heritage Area (TWWHA) meets 7 out of 10 criteria. Only one other place on earth—China’s
Mount Taishan—meets that many criteria". Controversy surrounds the decision in 2014 by the
Abbott federal
Liberal government to request the area's delisting and opening for resource exploration (before it was rejected by the UN Committee at Doha), and the current
mining and
deforestation in the state's
Tarkine region, the largest single
temperate rainforest in Australia. ==Demography==