Distribution of ground dwelling spider genera among berseem crop at Okara district, Pakistan – Articles of INNSPUB

trifolium_alexandrinum_ef

By: Muhammad Arshad Rana, Munaza Shabnam, Naureen Rana, Tayyba Sultana, Salma Sultana, Sobia Kanwal, Imran Ahmad

  1. Department of Zoology, Govt. Postgraduate College Okara, Pakistan
  2. Department of Biology, Govt. Postgraduate College forWomen Sahiwal, Pakistan
  3. Department of Zoology, Wildlife and Fisheries, UAF, Pakistan
  4. Department of Zoology, Govt. College University Faisalabad, Pakistan

The present study was designed to record the distribution of ground dwelling spider genera among berseem crop at Okara district. Sampling was made from Trifolium crop on fortnight basis through pitfall traps.trifalex1 Equal number of traps were placed in three rows e.g. along the boundary, middle of the field and centre of the field. Each trap was filled with mixture solution of alcohol and glycerin (70:30%) along with few drops of kerosene oil. After 5 days interval sample traps was collected and spider specimens were washed with distilled water and permanently stored in labeled glass vials, and brought into the Pest Control Laboratory, Departmentof Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad Thereafter, each spider specimen was identified according to the taxonomic material and internet source.trifolinalex5 Identified data was analyzed statistically to quantify their spatial distribution. Overall maximum spatial distribution of spider population was documented in middle transect than boundary and centre of the berseem crop. It was also observed that temperature, humidity, vegetation and prey availability were the major factors that effecting the spider population. Population variations were recorded during the months of February, March and April in 2015, due to rise of temperature, decrease of humidity and availability of prey. It was concluded that despite to cosmopolitan nature, spiders have some correlation with suitable local conditions or habitat. More over, spiders are cost effective, functionally significant and play a key role in regulating decomposer population.

Source of original articles at: JBES-Vol8No2-p104-113

Related Articles of this journals: Removal of heavy metals (Cr, Cd, Ni and Pb) using fresh water algae (Utricularia tenuissima, Utricularia tenuis & Zygogonium ericetorum) from contaminated water

Journal Name: Journal of Biodiversity and Environmental Sciences (JBES)

Publication Name: International Network For Natural Sciences (INNSPUB)

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