Biodiversitas Journal of Biological Diversity
Vol. 20 No. 5 (2019)

Population assessment and species distribution modeling of Paris polyphylla in Sikkim Himalaya, India

DAWA LHENDUP LEPCHA (Department of Botany, Sikkim University. 6th Mile, Tadong, Gangtok 737102, Sikkim, India)
ADITYA PRADHAN (Department of Botany, Sikkim University. 6th Mile, Tadong, Gangtok 737102, Sikkim, India)
DHANI RAJ CHHETRI (Department of Botany, Sikkim University. 6th Mile, Tadong, Gangtok 737102, Sikkim, India)



Article Info

Publish Date
14 Apr 2019

Abstract

Abstract. Lepcha DL, Pradhan A, Chhetri DJ. 2019. Population assessment and species distribution modeling of Paris polyphylla in Sikkim Himalaya, India. Biodiversitas 20: 1299-1305.  Paris polyphylla Smith is an important therapeutic plant that grows in the Indian Himalayan region. In Sikkim, the survival of the species is threatened by illegal extraction of its rhizome. Therefore, immediate conservation initiative is required to conserve the existing species population in the wild. Population assessment through field survey followed by ENM revealed a positive correlation between predicted suitable habitats with the actual sites of its occurrence, except in disturbed habitats. Precipitation of driest month (Bio14) and slope were the most influential factors that contributed 41.9 % and 30 % respectively to the MaxEnt model. Field survey revealed that the density of the plants varied between 0.45 (pl/m2) and 3.89 (pl/m2) and the frequency varied from 36% to 76%. The IVI for P. polyphylla ranged between 2.68 to 8.66 based on locations. On the other hand, the IVI of associated species varied from 3.57 to 18.14 based on species. P. polyphylla is a vulnerable plant in Sikkim Himalaya and it is facing an imminent threat of extinction. Under this situation, it is imperative that works on predictive modeling will help conserve the species. This study identified the potential habitats for P. polyphylla in the higher elevations of Sikkim Himalaya where it could be reintroduced.

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Journal Info

Abbrev

biodiv

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

The Biodiversitas Journal was first published in 2000 by the Department of Biology, FMNS, Universitas Sebelas Maret, Surakarta, Indonesia, then in 2006 it was co-published by the Society for Indonesian Biodiversity and that department; since 2017 it was also hosted by Smujo. From 2003-2012 it was ...