Population Dynamics of Collembola and Acari in Wetlands and Croplands in Indo-gangetic Plains of North Bihar
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چکیده
Muller (1879) was the first to recognize that soil animals play an important role in the development of soil. In fact soil fauna represents the most rewarding area of current biological exploration. Soil biota, constitutes the driving force of terrestrial ecosystems because they control the rate of turnover and mineralization of substrates. Yet they remain one of the least known biological frontiers, particularly in terms of soil zoological systematic, taxonomy and ecology. They also act as an indicator of soil conditions and can be used for soil diagnosis (Ghilarov, 1965; Choudhuri and Roy, 1967). Mites are predominantly soil dwelling and there is no sample of humus that does not contain a mass of herbivorous beetle mites (Oribatids). The same is true to springtails (Collembola) too. Both are among important producers of humus. They are either saprophagous or carnivorous forms. The saprophagous forms are of direct relevance to decomposition process. Soil fauna favours microbial activity, increase enzymatic activity and stimulate root development and maintain a control over plant damaging species. In agro-ecosystem they play vital role in distribution and flow of carbon within the soil system by creating galleries, chambers, burrows, mounds and nests and producing faecal matters. They decompose the organic residues which are essential for primary production.
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تاریخ انتشار 2011