Volume No. 10 Issue No.: 4 Page No.: 684-692 April-June 2016

 

TROPICAL SPIDERS IN A SEMI-ARID AREA : THEIR SEASONS OF PROSPERITY

 

Patel M. B.*1 and Patel M. I.2

1. Department of Biology, Navyug Science College, Surat (INDIA)
2. M.N. College, Station road, Visnagar, Gujarat (INDIA)

 

Received on : February 10, 2016

 

ABSTRACT

 

Ecological study of spiders was done in Mehsana district (230 02 to 240 09 North latitudes and 710 26 to 720 51 East longitudes). Their collection was done from different habitats of four different sites for two years. Study area comes under semi arid climate. Its vegetation region has been classified as Indian desert. Rainfall remains irregular in monsoon every year. Low species population was available during cold period (December- January) and high in Early Monsoon (June- July). Temperature effects highly and photoperiodism effects moderately on availability of spider species. More number of families also recorded during Monsoon. Hippasa pisaurina, Pocock was a predominant species in this area. Species richness was recorded highest during post Monsoon and Early Monsoon. Available different food source from farmland habitat during crop calendar was marked with its dominant role for diversity of spider fauna. But it was observed that use of insecticides in Ravi crops effects on population of spiders due to common agriculture practice. Public awareness about spiders as a bio controller is required.

 

Keywords : Habitat, Monsoon, Agriculture, Species richness, Temperature

 

 

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