Example of climate fluctuations for Bloomington, IN and species' ranges.

Example of the variance of 4 bioclimatic variables for one 50 km point in the Midwest, Global ID #139912, (Bloomington, IN) and the range of these variables in the modern climate envelopes for 11 rattlesnake species.该示例展示了美国中西部全局标识符（Global ID）#139912的一处50千米尺度点位（印第安纳州布卢明顿）的4个生物气候变量（bioclimatic variables）的方差，以及11种响尾蛇物种现代气候包络（climate envelopes）内这些变量的取值范围。