بررسي رابطه تنوع، غنا، يكنواختي و فراواني گونه اي سوسماران با وضعيت توپوگرافي در منطقه سبزوار

Survey of Topographic Condition with Diversity, Evenness, Richness and Abundance of Lizardʹs Species in Sabzevar Region

This survey was accomplishing during seven months (March - October 2007) on around of SABZEVAR region. The lizards captured on 7 one-ha plots (lOOmxlOOm), that based on topographic and vegetation change, Lizards were sampled by 2 methods. The first consist of padding and the second sampling method was accomplished with pit-fall trapping. Twenty pitfall traps were established in each plot and were placed at random- systematic within a plot. Over all, we capture 151 specimens that belong of 4 family, 8 genuses and 12 species. For measuring of the diversity we use Shannon-Wiener, Ni, Simpson and Hill indexes, and for evenness measuring used the Camargo, Simpson and Smith &Wilson indexes, In addition, we use Rarefaction Method for equate of data and measure the species richness. Finally in regard with the results that derivatived by different indexes we found that, the relationship between altitude and species diversity is negative correlation but this relationship between altitude and lizardʹs species evenness was positive.(diversity indexes): Shannon-Wiener (r=0.9, R2=0.806), Ni (r=0.91, R2=0.832), Hill (r=0.77, R2=0.59), Simpson (r=0.75, R2=0.56); (evenness indexes): Simpson(r=0.77, R2=0.57), Smith &Wilson and Camargo (r=0.8, R2=0.64). In addition, another negative correlation was be shown within altitude and species abundance (r=0.73, R2=0.53) and species richness (r=0.85, R2=0.73).