From Ashes to Giants

Category: About Giant Trees

Eucalyptus regnans, E. delegatensis and E. obliqua are of the Ash group of eucalypts that grow in wet sclerophyll forests and regenerate from fire. Following fire, the seedlings establish from seed in great numbers and compete for light; the tallest and straightest becoming dominants of the forest while the smaller trees die out over time.

It is likely that it takes at least 100 years to reach the great heights and more than 300 years to reach the massive girth of a giant tree, which means that these trees must survive disturbance such as future fires and wind throw. Many big trees in mature wet forests have been cut short by wind, the tops of the trees literally blown out, as a process of weathering, fungal rot and old age. The age of the oldest Giant Tree is not known, as internal rot makes aging eucalypt trees very difficult, but it is thought that they can live for at least 500 years from dendrochronology and carbon isotope studies (Wood, 2010).

Tassies Tallest Trees

Category: About Giant Trees

Top 10 tallest trees in Tasmania

 

Giant Trees Damanged by Wildfire

Category: About Giant Trees

Bushfires in 2008 in National Park have damaged two giant trees.

The trees include Waytinah Giant, the first giant tree to be listed on the register. This tree was burnt severely but the cambium layer beneath the bark is still alive, and the tree may live on. It will need to be monitored periodically as the tree is some 50m from a forest road and fire-damaged trees are known to die as much as one year after the fire. The other tree was Wayatinah Too, a nearby giant that was destroyed during the fire.

Parks and Forestry Tasmania worked together in fighting the fire and assessing the trees post-fire. They will continue to work together to monitor the Wayatinah Giant and look out for public safety.

Giant trees are prone to fire and occassionally trees will be lost through wildfire, but we are finding more trees all the time and the legacy of fallen giants remains on the forest floor, where they will continue to provide habitat as coarse woody debris, sheltering large fauna like wombats to the smallest insects, epiphitic plants and a host of fungi and other organisms.

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Giant Trees Register

Category: About Giant Trees

The Giant Trees register now has over 100 trees listed! The register began just under 10 years ago and new nominations are always welcome. A giant tree must meet the criteria of being either 85 meters or taller, or at least 280 cubic meters in modeled or calculated volume. GPS coordinates are provided below for each giant tree discovered, so visitors are welcome to explore the forest and discover these trees for themselves.

Avoiding disturbance to nesting eagles

Endangered Tasmanian wedge-tailed eagles may nest in or near some of the trees in this register, and are very vulnerable to disturbance during the nesting season. Please contact the relevant district forest office first to check whether your visit risks disturbing a nesting pair:

- North East Region (north-east) - (03) 6350 6466

- Southern Region (midlands and south-east) - (03) 6235 8353

- North West Region (north-west and west coast) - (03) 6433 2666

Volume measurements in brackets are derived from either a tree volume model or an estimate. Those not in brackets have been calculated using more detailed measurements.

[STA] named trees require further assessment.

david.mannes@forestrytas.com.au www.gianttreestas.com.au