English: Historical day of year for first bloom index (FBI) for the Tallgrass Prairie National Preserve, Kansas (dots) fitted with a local polynomial regression model (loess in red) and a 2 standard error band (blue). Data from William Monahan.[1]
Historical day of year for first bloom index (FBI) for the Tallgrass Prairie National Preserve, Kansas (dots) fitted with a local polynomial regression model (loess in red) and a 2 standard error band (blue).