Biology subjects

Parwez, H.

Publications and source records attributed to Parwez, H..

3 recordsLinked to original sources

bioRxiv2019

Seasonal diversity of soil microarthropods in two different vegetable plots of Aligarh-India

Soil microarthropods are intimately linked with health and fertility of soil as well as plant productivity. In India, despite their rich faunal diversity, information on soil microarthropods diversity and interactions with variety of edaphic factors is extremely limited. The present study has been carried out to observe seasonal diversity of soil microarthropods in two different vegetable plots at Aligarh. The two vegetable plots chosen in this study where predominantly Tomato (Lycopersicom esculentum) and Brinjal (Solanum melongena, family-Solaneceae) have been grown and sapling has been sown in the month of April when plants attained a height of approximately 6''. The samples were collected randomly from a depth of 5cm. @ of four samples per month for a period of one year. All microarthropods extracted with the help of Tullgren funnel apparatus. Among soil microarthropods collected, Collembolans have highest average monthly density (15.20 inds./sample) in brinjal plot and greatest abundance (18.7inds./sample) in tomato plot. A highly significant negative correlation was recorded between Collembolans population with reference to soil temperature (r = -0.867, P<0.05), whereas available nitrogen showed a positive correlation (r = 0.847, P>0.05). Interestingly, at neutral pH level, the highest population of Collembolans as well as Acari(mites) were recorded. During spring and winter months, there was a peak population buildup of Collembola and Acarina, whereas a sharp decline was recorded in summer months. So, this study clearly establishes that habitat difference as well as edaphic factors plays an important role along with seasonal parameters on their diversity.

ecology↗

bioRxiv2019

Diversity of Microarthropods in Different Habitats: An Ecological Perspective

Soil biological communities are influenced by several factors like edaphic factors, environmental variables, soil nutrients availability and anthropogenic changes including urban development and agricultural practices. Edaphic factors exert the conditions directly to influence microarthropods populations. To test this hypothesis, a question has been addressed; how factors regulate the ecosystem functions in contemporary a combined fashion? We observed, vegetation and habitat conditions both have close relationship and profoundly affect microarthropods populations particularly affect on local scale, resulted microclimatic influence of edaphic matrix which is generally system oriented. It is further discussed in this paper, on what attempt possible for better functional use of microarthropods which is important for conservation and for better output as a result of soil productivity in contemporary harsh climatic conditions with minimum use of amendments. It has been concluded in this study that diverse species found in structurally diverse habitats where they often appear to specialized conditions in native agricultural ecosystem.

ecology↗

bioRxiv2019

Effect of habitat quality, microclimatic conditions and waste water contamination on diversity & distribution of Collembola community

Soil biodiversity is undergoing dramatic changes due to human and climatic interference, habitat loss and fragmentation due to land use change, increasing pollution and degradation in terrestrial ecosystems. The overall effect of habitat loss is on the loss of soil biodiversity which might be due to negative response of substrate quality. Adverse microclimatic conditions may also be detrimental to species specific communities along with waste water contamination. Thus, an investigation has been carried out to ascertain the effect of habitat quality, microclimatic conditions and waste water contamination on diversity and distribution of Collembola community at Aligarh. For this, 4 samples have been taken monthly for a period of one year from two different study sites of Aligarh along with edapho-chemical properties. We observed that, density of Collembola (18.8 ind./sample) was always approximately three times more in agriculture site than in wasteland (7.6 ind./sample) site. Population of Collembola was statistically positive significant with reference to soil organic matter % (r = 0.621, P>0.05), SOC % (r = 0.622, P>0.05), Available nitrogen (r = 0.622, P>0.05) and Potash (r = 0.562, P>0.05) in Agriculture site whereas these all were statistically insignificant in Wasteland site. This observation suggests that quality of habitat has a direct effect on the diversity and population of Collembolans. The wasteland site which is a sewage filled from the nearby colonies also it is a dumping ground of waste building material under Municipal Corporation. Hence, the soil is highly contaminated as compared to the agricultural soil.

ecology↗