Extended Data Fig. 7: Temporal and geographic patterns of change in alpha diversity of seagrasses under a worst-case scenario of climate change.
From: Reorganization of seagrass communities in a changing climate
Estimates are based on species distribution models of seagrasses (n = 66 species) fitted using maximum entropy and aggregated to 100 km × 100 km grid cells. Indicated are the spatial and temporal changes between current and future distributions of α-diversity based on: a–e, species richness (number of species in a grid cell), f–j, phylogenetic diversity (sum of phylogenetic branch lengths connecting species in a grid cell), k–o, weighted endemism (species richness inversely weighted by species ranges), and, p–t, phylogenetic endemism (the amount of evolutionary history that is unique to a particular area). Differences in α-diversity for each metric are shown for T1: 2040–2050 and T2: 2090–2100 both under RCP8.5 (worst-case scenario). For each difference map (T1: c, h, m, r, and T2: e, j, o, t), negative values indicate reductions in diversity and positive values correspond to increases in total diversity. Analyses of phylogenetic diversity and phylogenetic endemism were based on a randomly selected subset of 100 trees from a random distribution of 1000 trees.
