PCR negative control
DNA was extracted from echidna scats with the Qiagen QIAamp Fast DNA Stool Mini Kit by either a trained researcher or by  undergraduate students (see BioProjects metadata file). The full-length 16S rRNA gene was amplified using the Oxford Nanopore SQK-16S024 or SQK-16S114.24 library preparation kit. Samples were pooled then sequenced on an Oxford Nanopore MinION Mk1C. Basecalling and barcode demultiplexing was performed using MinKNOW. Demultiplexed reads were concatenated using MetONTIIME.