Fig. 2: Genetic diversity dataset.

Map depicting the locations of marine forest sampled populations. The species, number of sampled populations, genetic index, genetic marker, number of studies and temperature affiliation inferred from existing species’ distribution range maps are shown. Species were characterized as cold when the 95th percentile of temperature along their range was below 15 °C, temperate when between 15 and 25 °C and tropical above 25 °C. Abbreviations stand for allelic richness (Ar), expected heterozygosity (He), microsatellites (Mic), mitochondrial DNA (mtDNA) and single nucleotide polymorphisms (SNP).