Table 1. Summary of statistical analyses of lesser kestrel flight variables divided in two categories: Use of thermals and daily patterns.
Analysis | Level | Sampling frequency | Response variables | Meteorological predictors | Other predictors |
---|---|---|---|---|---|
Use of thermals | Commuting flight | 1-second | Number of thermals/distance, Accumulated ascent/distance, Total ascent/thermal event, Mean climb speed/thermal event | Solar radiation | Individual (Random), Commuting flight type |
Use of thermals | 6-hour intervals | 1-second | Number of thermals/distance, Accumulated ascent/distance, Total ascent/thermal event, Mean climb speed/thermal event | Thermal uplift | Date (Random) |
Daily pattern of foraging flights | Commuting flight | All | Maximum flight altitude, Cross-country speed | Solar radiation | Individual (Random), Commuting flight type, GPS sampling frequency |
Daily pattern of foraging flights | Foraging trip | All | Maximum distance from the colony, Duration | Solar radiation | Individual (Random), GPS sampling frequency, Colony, Colony*Solar Radiation |
Daily pattern of foraging flights | 6-hour intervals | All | Maximum flight altitude, Cross-country speed, Maximum distance from the colony, Duration | Thermal uplift, Orographic uplift | Date (Random), Colony, Colony*Thermal uplift |
We analyzed these categories at different levels (commuting flights, foraging trips, or 6-hour intervals) registered at 1-second or at all (1-second to 10-minutes) sampling frequencies, depending on the category. We list the flight variables modeled at every level of analysis and the predictors tested in those models. Response variables used at the 6-hour interval level were mean values per interval.