Data and Code - sedaDNA Metabarcoding of Species Turnover

This repository contains all datasets and analytical scripts used in the study: Metabarcoding of sedimentary ancient DNA reveals centuries of species turnover and introductions of non-indigenous species in a highly urbanised estuary Geochemical datasets (Supplementary Data S1_XRF_Dating.xlsx) XRF core scanner element profiles (Cu, Zn, Pb) Radiometric dating data (^210Pb) Processed metabarcoding tables ASV abundance matrices for COI and 18S (Supplementary Data S2 & S3) Taxonomic assignment tables Species biogeographic status classification (Supplementary Data S4_SpStatus.xlsx) Metadata files (metadata.xlsx) Sample IDs, core IDs, core depths, geographic coordinates, and sediment age estimates Analysis scripts (R files) R scripts for diversity metrics, community analyses, GAMs/GLMs, and figure generation