Community analysis of soil-inhabiting nematodes in natural vegetations of Singalila National Park, West Bengal (India)

Authors

  • Anjum N Rizvi
     Zoological Survey of India, Prani Vigyan Bhawan, M-Block, New Alipore, Kolkata - 700053
  • Priyanka Kashyap
     Wildlife Institute of India, Chandrabani, Dehradun - 248001, Uttarakhand
  • Keya Haldar
     Zoological Survey of India, Prani Vigyan Bhawan, M-Block, New Alipore, Kolkata - 700053, West Bengal
  • Krittika Bose
     Zoological Survey of India, Prani Vigyan Bhawan, M-Block, New Alipore, Kolkata - 700053, West Bengal

DOI:

https://doi.org/10.26515/rzsi/v122/i2/2022/168238

Keywords:

Abundance, Darjeeling State, Nematode Diversity, Food Web Indices, Maturity Indices

Abstract

Analysis of soil samples collected from the natural vegetations of Singalila National Park of Darjeeling District, West Bengal, yielded 50 genera under 9 orders and 25 families of soil-inhabiting nematodes. In terms of taxonomic diversity, Order Tylenchida showed maximum diversity (28%), followed by Rhabditida and Dorylaimida (22%), Mononchida (10%), Enoplida (6%), Aphelenchida and Plectida (4%), Triplonchida and Chromadorida (2%). In terms of abundance, the highest group was Rhabditida (31%) followed by Tylenchida (30%), Dorylaimida (18%), Plectida (7%), Chromadorida (5%), Aphelenchida (4%), Mononchida and Triplonchida (2%). The least abundant group was Enoplida (1%). In terms of the trophic diversity, the plant parasites represent the highest number of generic diversity (30%) followed by bacterivores (28%), predators (18%), omnivores (16%) and fungivores (8%). Bacterial feeders dominated in abundance (38%) followed by plant-parasites (34%), omnivores (13%), fungivores (8%) and predators (7%). In the present study, the values of Shannon-Weaver (H) and Maturity Index (MI) was 2.26 and 2.25 respectively depicting that the study area is less disturbed and has a high nematode diversity. PPI/ MI value is low showing the mature ecosystem in the region. Food web indices CI, EI, and SI showed that the study area was structured and enriched with resources. This study is a pioneer study in the area on soil-inhabiting nematodes and provides the baseline data which will be useful in future long-term monitoring studies in the region.

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Author Biography

Anjum N Rizvi, Zoological Survey of India, Prani Vigyan Bhawan, M-Block, New Alipore, Kolkata - 700053

Scientist -D

nemathelminthes Section

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Published

2022-06-28

How to Cite

Rizvi, A. N., Kashyap, P., Haldar, K., & Bose, K. (2022). Community analysis of soil-inhabiting nematodes in natural vegetations of Singalila National Park, West Bengal (India). Records of the Zoological Survey of India, 122(2), 163–171. https://doi.org/10.26515/rzsi/v122/i2/2022/168238

Issue

Volume 122, Issue 2, 2022

Section

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