Density feedback and minimum climate variables.

Standardized model-averaged effect sizes of time-series length (q, years), temperature of the coldest month (minT, °C), precipitation of the driest month (minP, mm), seasonality of temperature (sT = sd, °C) and seasonality of precipitation (sP = CV) as explanatory variables of variation in strength of compensatory density feedback in birds (91 species) and mammals (55 species). Statistical models were fitted as phylogenetic generalized least-squares regression, with a total of 9 models in each contrasted set (Table 2, Figure 2). Effect sizes are medians (in bold) for 100 bootstrapped samples [95th bootstrapped percentile ranges].