Taxus wallichiana

Where is this tree found?

Taxus wallichiana, the East Himalayan Yew, is a large tree that is found throughout the Himalayan region in northern India (Sikkim), Myanmar, Bhutan, China (Yunnan and Sichuan Provinces), southern Vietnam and Tibet where the tree was first recorded. This species is found in both tropical and subtropical montane forests over an altitude of 900m above sea-level.

Why save this tree?

Despite having a wide distribution, the population of this species has witnessed major declines in the previous 25 years due to logging and harvesting of the plant for medicine extraction, and the population is still declining. This has resulted in T. wallichiana being classified as Endangered on the IUCN Red List. The remaining populations are fragmented and show slow, poor natural regeneration. In the wild, stands of this species cluster together, however they don’t form pure forests. As a result of this fragmentation and poor regeneration there are now more numerous young-stage individuals than mature trees in the wild.

This species is notable for its excellent timber and as a source of the natural chemotherapy drug paclitaxel (also known as Taxol) used to combat numerous cancers. It also provides excellent environmental services as it is remarkably good at absorbing some poisonous gases such as formaldehyde and is able to absorb CO2 and release oxygen throughout the day and night by utilising the crassulacean acid metabolism (CAM) mechanism.

How to save this species

Funding for this project will allow for urgent survey and monitoring work to examine the true extent of the remaining populations of T. wallichiana. From here work will begin to propagate and reintroduce more than 1,000 individuals of this species and more than 10,000 individuals of related species into ecological restoration sites. Once established, these restoration sites will be used as bases for scientific education. In order to enhance public engagement with the protection of this species, ecological restoration and other threatened species popular science programmes will be carried out.

$ 0
cost to save the species
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duration of the project

A systematic, cost-effective, and rational approach

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Survey and protect target species

Surveys will be carried out to determine the true extent of the remaining populations of this species and efforts will be made to protect the remaining populations of Taxus wallichiana

Protect associated species

Efforts will be made to protect those species associated with the target species – the Eastern Himalayan Yew

Reintroduction of target species

Carry out the reintroduction of this target species scientifically

Reintroduction of associated species

Species associated with Taxus wallichiana will also be reintroduced at the same time

Establish education base

These sites of ecological restoration will be used as bases for scientific education

Public engagement

Public engagement will be increased through popular science education on threatened species protection and habitat restoration

Partners for Taxus wallichiana

Sponsors for Taxus wallichiana