Earthworm biodiversity in western arid and semiarid lands of India

Surindra Suthar ()
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Surindra Suthar: J.N.V. University

Environment Systems and Decisions, 2011, vol. 31, issue 1, 74-86

Abstract: Abstract Efforts have been made in this study to estimate the current status of earthworm biodiversity in western arid and semiarid lands of India. A total of 513 different locations (rural, urban, and sub-urban localities) covering both arid and semiarid areas were surveyed and 11 earthworm species: Perionyx sansibaricus (Perrier), Amynthas morrisi (Beddard), Metaphire posthuma (Vaillant), Lampito mauritti Kinberg, Dichogaster bolaui (Michaelsen), Octochaetona paliensis (Stephenson), Ramiella bishambari (Stephonson), Ocnerodrilus occidentalis Eisen, Malabaria sp, Allolobophora parva Eisen, and Pontoscolex corethrurus (Müller) belonging to five different families were rerecorded. A few earthworm species, e.g., L. mauritii, M. posthuma, O. occidentalis, and D. bolaui showed their presence in most of the sampling localities, while R. bishambari, Malabaria sp., A. parva, and P. corethrurus were restricted to a particular locality in arid land. Earthworm fauna of this region showed a patchy distribution pattern and the majority of the species were recorded from northern canal-irrigated and central alluvial plain belt (mid to eastern part) of the Thar Desert. Earthworm distribution and species-richness pattern were directly related to the local microclimatic factors and human activities. Thus, results suggested that human activities have been acted as important agency for invasion of earthworm communities in remote areas of western arid land of India.

Keywords: Earthworm; Biodiversity; Oligochaeta; Thar Desert; Soil invertebrates; Desert (search for similar items in EconPapers)
Date: 2011
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DOI: 10.1007/s10669-011-9308-y

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