Journal of
Ecology and The Natural Environment

  • Abbreviation: J. Ecol. Nat. Environ.
  • Language: English
  • ISSN: 2006-9847
  • DOI: 10.5897/JENE
  • Start Year: 2009
  • Published Articles: 408

Full Length Research Paper

Community structure and population status of Drosera burmanii Vahl. with new distributional record in Tripura, India

Koushik Majumdar1*, B. K. Datta1 and Uma Shankar2
1Plant Taxonomy and Biodiversity Laboratory, Department of Botany, Tripura University, Suryamaninagar 799130, Tripura, India. 2Ecosystem Research Laboratory, Centre for Advanced Studies in Botany, School of Life Science, North-eastern Hill University, Shillong 793022, Meghalaya, India.
Email: [email protected]

  •  Accepted: 25 November 2010
  •  Published: 30 November 2011

Abstract

Quantitative data of community structure and the current status of ecologically and economically important Drosera burmanii Vahl. Populations were gathered at Tripura, India, from two different stands, Suryamaninagar (Site i) and Ishanchandranagar (Site ii). The area of occupancy of Drosera in both sites was measured. A total of 31 species (26 genera of 18 families) were recorded to be associated with Drosera. Species richness index, dominance index, diversity index and evenness index from both sites were analyzed. The relative importance value (RIV) was calculated for all the species found in the study sites and was highest for Drosera. Individuals of Drosera were also categorized into mature, juvenile and seedlings based on the presence and absence of reproductive organ. This is the first report of the species from the Tripura region. Local ethno-medicinal use of the Tripuri tribe is also documented.

 

Key words: Drosera burmanii, community structure, regeneration status, species conservation.