Commercial harvesting and regeneration of epiphytic macrolichen communities in the Western Ghats, India

Molleman , Lucas and Boeve, Sil and Wolf , Jan and Oostermeijer, Gerard and Soubadra Devy, M and Ganesan, R (2011) Commercial harvesting and regeneration of epiphytic macrolichen communities in the Western Ghats, India. Environmental Conservation , 38 (3). pp. 334-341. ISSN 0376-8929

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Abstract

Non-timber forest products form a substantial contribution to the livelihood of many rural communities worldwide. In the Western Ghats, India, epiphyticmacrolichens are harvested by Paliyan tribes to generate supplementary income. Paliyan tribes employ two harvesting methods: shallow harvesting, with a minimum of attached bark substratum, and deep harvesting, which exposes the sapwood. To evaluate the regeneration of the lichen community in terms of species diversity, abundance and composition, 320 bark samples of up to 50 cm2 were collected from bark patches where lichens had been harvested previously, as shown by bark scars. Samples selected represented four host tree species, both harvesting methods and seven one-year intervals of time since harvesting. In each case, the field guide estimated sample age, and peer-testing proved these estimates to be reliable up to an age of seven years. Seven years after harvesting, the lichen community showed note worthy regeneration capacity in terms of total lichen coverage and species richness. However, to assess the risk of local species loss in the long-term, any harvesting should include continuous monitoring of lichen species composition. Since shallow harvesting resulted in a swifter recovery of species abundance and richness compared with deep harvesting, harvesters should preferentially employ the shallow harvesting method.

Item Type: Article
Additional Information: Copyright of this article belongs to Foundation for Environmental Conservation
Uncontrolled Keywords: extractive reserves, lichens, non-timber forest products, Palni Hills, Paliyan tribes, sustainable yield
Subjects: C Publications by ATREEians > G Journal Papers
Divisions: Publications by ATREEians > Journal Papers
Depositing User: Users 103 not found.
Date Deposited: 12 Dec 2016 07:04
Last Modified: 12 Dec 2016 07:04
URI: http://eprints.atree.org/id/eprint/400

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