Fig. 1: Occupancy trends across 1990—2020.
From: Trait mediation explains decadal distributional shifts for a wide range of insect taxa
A Observed (in blue) and predicted (at sample locations, in orange) average insect occupancy for the 11 ITL-1 regions of Great Britain. The uncertainty envelopes show the 90% prediction interval resulting from bootstrapped aggregation (n = 20 bags, see “Methods”). For both observations and predictions, only the test split of the dataset is shown. B Same but for 3 latitudinal slices of equal landmass along the length of Great Britain. Predictions at random locations are also displayed (in red), theoretically less affected by sampling biases. The solid lines mark the statistically significant (two-sided t test, p = 0.01, n = 600, adjusted for multiple comparisons testing with Bonferroni correction) linear trends with absolute effect size above 1% probability of presence per decade. Source data are provided as a Source Data file.
