Fig. 4: Increasing and decreasing variation explained by each climatic variable across decades.
From: Climate change reshuffles northern species within their niches
The variance components were scaled by each model’s discriminatory power to allow comparisons among models. We used linear regression to estimate slopes of the species-specific variance components as a function of decade to estimate changes over time, with positive slopes shown in red and negative slopes shown in blue. Trend estimation and colour scheme are exemplified in the upper box, showing the slopes for each variable for bird species in the northernmost zone. Asterisks indicate significance levels of the linear slopes (* = p < 0.05, ** = p < 0.01, *** = p < 0.001). Icon credits: rodent, PhyloPic (phylopic.org); moth, Gareth Monger/PhyloPic under CC BY 3.0; other icons from the Noun Project (thenounproject.com). See Acknowledgements for creator credits.
