Comparing environmental values before model training
Following the temporal filtering, the analysis included 53 records observed between January 1971 and December 2000 (see Supplemental material, Table S1). The paired Wilcoxon signed-rank tests revealed significant differences in the environmental values of the occurrences when comparing the standard 30-year average approach (STA) to each of the temporal resolutions (T01, T05, T10) for the maximum temperature of the warmest month (bio05) and the precipitation of the driest month (bio14). In addition, the precipitation of the wettest month (bio13) showed a significant difference when comparing the 30-year standard average (STA) against the one-year temporal resolution (T01). The minimum temperature of the coldest month (bio06) did not present significant differences between the approaches. The Bland-Altman plots also confirmed the quantitative results, showing the difference between the standard average and the temporal resolutions (Fig. 4). Specifically, significant differences in environmental values were observed when the mean values of the subtraction between the 30-year average and the temporal resolution (represented by horizontal black lines) deviated significantly from the y-axis zero. Bio06 indicated a temporal pattern where older records (dark orange) had lower temperatures when doing a time-matched approach, while recent occurrences (light orange) had higher temperatures. This temporal pattern was not evident for precipitation-based variables (bio13 and bio14) and the other temperature variable (bio06). Moreover, the magnitude of the difference decreases for all the variables as the temporal resolution is lower (i.e., from one-year to ten-year). For example, the difference between standard and time-matched approaches in some occurrences was as high as 2°C when comparing a one-year temporal resolution to the 30-year average but decreased to 0.5°C when comparing against the ten-year temporal resolution.