Soil microarthropods in two different managed ecological systems (Tripura, India)

Fonseca, J. P. Cancela Da; Sarkar, Santosh Kumar

doi:10.1016/s0929-1393(98)00062-6

Cited by 16 publications

(8 citation statements)

References 2 publications

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“…Group diversity of mite population was calculated by Shannon's diversity index (Shannon and Weaver, 1963;Magurran, 1988;Cancela da Fonseca and Sarkar, 1998) which is as follows-H'(G) m = -6 P gm ln P gm , where, P gm = Group abundance (of mite) per month / monthly abundance of total mite population, and, H'(G) m = Monthly group diversity Logarithmic transformation of collected data were done to meet the requirement of applying parametric statistics as and when necessary.…”

Section: Methodsmentioning

confidence: 99%

Abundance and group diversity of soil mite population in relation to four edaphic factors at Chintamani Abhayaranya, Narendrapur, South 24-Parganas, West Bengal

Banerjee

Sanyal

Moitra³

2009

Proc Zool Soc

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Chintamani Abhayaranya in South 24-Parganas, West Bengal has an exposure to anthropogenic stress for its location. Soil mites here, constituted more than 73% of the population of soil microarthropods. Oribatid mites were found to be the most numerically abundant group among the soil mites, followed by order Mesostigmata. Population maxima and minima of the mite community were recorded during September and May respectively. Soil moisture and organic carbon content of the soil showed strong positive correlation with the abundance of mite population. One-way ANOVA revealed significant difference between the seasonal abundances of mite population. Group diversity of mite population was highest during July and lowest during January. No significant correlation, as per rank correlation analysis was noticed between the group diversity and edaphic factors. Regression analysis showed that only a small fraction variabilty of group diversity could be explained separately by four edaphic factors considered.

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Section: Methodsmentioning

confidence: 99%

Abundance and group diversity of soil mite population in relation to four edaphic factors at Chintamani Abhayaranya, Narendrapur, South 24-Parganas, West Bengal

Banerjee

Sanyal

Moitra³

2009

Proc Zool Soc

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“…The biodiversity of soil oribatid mites was studied in different parts of the country, for example, in Maharshtra [96][97][98][99][100]; Himachal Pradesh [101,102], Tripura [86,[103][104][105][106][107][108][109][110][111][112], Meghalaya [61], West Bengal [99,100,113]. Bhaduri and Raychaudhuri [114] accounted the taxonomy and distribution of oribatid mites of India.…”

Section: Oribatida (= Cryptostigmata)mentioning

confidence: 99%

Soil Fauna: A Retrospection with Reference to Indian Soil

2016

International Journal of Research Studies in Zoology

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Soil is a living, dynamic ecosystem. Healthy soil is packed with microscopic and larger organisms that perform many vital functions including converting dead and decaying matter as well as minerals to plant nutrients. Different soil organisms feed on different organic substrates. Their biological activity depends on the organic matter supply. Nutrient exchanges between organic matter, water and soil are essential to soil fertility and need to be maintained for sustainable production purposes. Where the soil is exploited for crop production without restoring the organic matter and nutrient contents and maintaining a good structure, the nutrient cycles are broken, soil fertility declines and the balance in the agro-ecosystem is destroyed. Soil organic matter-the product of on-site biological decomposition-affects the chemical and physical properties of the soil and its overall health. Soil ecosystem supports a complex of animal communities of which soil arthropods were of prime importance since they constitute the major component of soil mesofauna in all types of soils. The soil arthropods includes a variety of mites, collembolans, pseudoscorpions, centipedes, millipedes, symphylans, diplurans, proturans, hymenopterans, coleopterans etc. they play an important role in releasing nutrients and improve productivity within the forest ecosystem (less disturbed ecosystem) by decomposition process. Mostly they are present with numerically abundant in the undisturbed, natural forest. Among the soil arthropod Acarina and Collembola are the most diverse as well as abundant group. The present article reviews the research work done in this field with reference to India. A detail account of update distribution of acarines and collembolans (bulk of the soil fauna) and their ecology was given.

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“…As an essential driver regulating nutrient cycling processes [ 1 , 38 ] these organisms may increase paddy soil fertility [ 39 ]. In contrast, soil-dwelling microarthropods, like Acari or Collembola , occur in comparatively low numbers and are therefore thought to have limited influence on decomposition processes in irrigated rice [ 38 , 40 , 41 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Residue Management on Decomposition in Irrigated Rice Fields Are Not Related to Changes in the Decomposer Community

et al. 2015

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Decomposers provide an essential ecosystem service that contributes to sustainable production in rice ecosystems by driving the release of nutrients from organic crop residues. During a single rice crop cycle we examined the effects of four different crop residue management practices (rice straw or ash of burned straw scattered on the soil surface or incorporated into the soil) on rice straw decomposition and on the abundance of aquatic and soil-dwelling invertebrates. Mass loss of rice straw in litterbags of two different mesh sizes that either prevented or allowed access of meso- and macro-invertebrates was used as a proxy for decomposition rates. Invertebrates significantly increased total loss of litter mass by up to 30%. Initially, the contribution of invertebrates to decomposition was significantly smaller in plots with rice straw scattered on the soil surface; however, this effect disappeared later in the season. We found no significant responses in microbial decomposition rates to management practices. The abundance of aquatic fauna was higher in fields with rice straw amendment, whereas the abundance of soil fauna fluctuated considerably. There was a clear separation between the overall invertebrate community structure in response to the ash and straw treatments. However, we found no correlation between litter mass loss and abundances of various lineages of invertebrates. Our results indicate that invertebrates can contribute to soil fertility in irrigated paddy fields by decomposing rice straw, and that their abundance as well as efficiency in decomposition may be promoted by crop residue management practices.

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Soil microarthropods in two different managed ecological systems (Tripura, India)

Cited by 16 publications

References 2 publications

Abundance and group diversity of soil mite population in relation to four edaphic factors at Chintamani Abhayaranya, Narendrapur, South 24-Parganas, West Bengal

Abundance and group diversity of soil mite population in relation to four edaphic factors at Chintamani Abhayaranya, Narendrapur, South 24-Parganas, West Bengal

Soil Fauna: A Retrospection with Reference to Indian Soil

Effects of Residue Management on Decomposition in Irrigated Rice Fields Are Not Related to Changes in the Decomposer Community

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