John L. Schnase

The paper introduces the rENM Framework, an open-source R tool for analyzing long-term ecological niche dynamics using historical data, and demonstrates its application to Cassin's Sparrow.

This study uses MERRA-2 data and field observations to analyze historical changes in climatic suitability for Cassin's Sparrow, revealing complex patterns that vary by time series and environmental drivers.

The paper introduces MERRA/Max, a method for variable selection in ecological niche modeling, demonstrating its effectiveness with Cassins Sparrow data.