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Three Capes Track special winter offer

27/04/2017

Tasmania's award-winning Three Capes Track has been a huge hit with walkers, with a total of 14,495 local, national and international visitors since opening in December 2015.More

Tenders called for Mt Mawson shelter

27/03/2017

Tenders have been called for the construction of a new public shelter at Mt Mawson within Mount Field National Park.More

Local company awarded contract to replace Lake Tahune Hut and facilities

22/03/2017

Westbury company Valley Workshop has been awarded the contract to demolish and replace the hut and toilet facilities at Lake Tahune on the Frenchmans Cap walking track, a project worth $450,000.More

Invertebrates of Tasmania

Tasmania contains a wealth of invertebrate species of ancient origin. Their antiquity offers an insight into the processes of evolution, continental drift and climate change over vast periods of time. While many Tasmanian invertebrates (and, of course, vertebrates and plants) are of Gondwanan origin, some reveal even more ancient lineages that extend back to Pangea - the supercontinent that predated Gondwana beyond 200 million years ago.

Tasmania is home to a unusually high proportion of endemic species. Nearly half of the invertebrate species found within the Tasmanian Wilderness World Heritage Area, for example, are found nowhere else on Earth. Many well known groups of invertebrates have a high proportion of species restricted to Tasmania, such as 92% of the island's terrestrial oligochaetes (earthworms), 92% of its syncarids (mountain shrimps), 93% of its terrestrial amphipods (landhoppers), 88%of its freshwater crayfish, 89% of its stoneflies, 70% of its caddis-flies and 93% of its carabid beetles. 

There are also many groups where the largest or most spectacular examples occur in Tasmania, such as springtails, stoneflies, and freshwater crayfish.

Many species have greatly restricted ranges, such as the blind velvet worm, while others occupy remarkably narrow niches, such as the pandani moth which feeds soley within the fronds of the endemic pandani, the world's tallest heath plant.

Despite the unique values that invertebrates bring to Tasmania's rich natural heritage, and the vital role they play in forming the basis of ecological systems, the vast majority of the islands' invertebrate species remain undescribed or undiscovered, with little or nothing known about their ecology. The 10,000 invertebrate species presently known from Tasmania form just a fraction of the species that probably exist within the state. For some invertebrate groups, such as stoneflies and terrestrial flatworms, Tasmania is the Australian centre of diversity. For others, such as the velvet worms, it is the world centre of diversity.

A Sample of a Few of Tasmania's Significant Species

Only a few of the many thousands of species are detailed here. For a more complete, albeit still partial, listing of Tasmania's invertebrate fauna, see the Department of Primary Industries and Water web site.

Crustaceans 
Giant Freshwater Crayfish Astacopsis gouldi 
Mountain Shrimp Anaspides spp.

Insects

Arachnids
Annelids