Fig. 2: Partial effects of the green-up variables on insect BIN richness and Biomass. | Communications Biology

Fig. 2: Partial effects of the green-up variables on insect BIN richness and Biomass.

From: Earlier and more uniform spring green-up linked to lower insect richness and biomass in temperate forests

Fig. 2

Effects were derived from generalized additive models (gams) on BIN richness (a, b) and on Biomass (c, d), in which we included regional land use and interactions of local land use with all green-up variables, with all climate variables and with species richness as fixed linear effects (see Table 1). ‘Day’ was used as smoothed effect and space as random effect. An offset of log(sampling days) was used to control for sampling period differences. For biomass, family = gaussian(link = “log”) and for richness, family = negative binomial were used. Insect data were recorded over a whole season (8 samplings) at 179 traps, resulting in 1214 observations for BIN Richness and 1293 observations for Biomass. a, c, partial effects of mean SOS. b, d, partial effects of SV-SOS.

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