《Table 2 Bioclimatic and topographic variables used for modelling the suitable distribution of Subps

《Table 2 Bioclimatic and topographic variables used for modelling the suitable distribution of Subps   提示:宽带有限、当前游客访问压缩模式
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《气候变化对黄土高原及邻近地区稀有种枯蝉分布的潜在影响(英文)》


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The WorldClim database provides a total of 19bioclimaticvariables,whichdiscriminateat approximately 1 km2resolution(Hijmans et al.,2005;http:∥www.worldclim.org).The WorldClim data are derived from measurements of altitude,temperature and rainfall from weather stations worldwide during 1950-2000.In this research,the Pearson correlation coefficient r≤±0.85 is used as a cut-off threshold to determine the exclusion of highly correlated variables(Yi et al.,2016).According to the correlation analysis of19 bioclimatic variables,eight bioclimatic variables(Bio 1,Bio 6,Bio 8,Bio 11,Bio 12,Bio 13,Bio16,and Bio 17)were reserved(see Table 2 for detailed information).All variables were processed using ArcMap software(version 10.2,ESRI,USA).