Figure 4
From: Metabarcoding insights into the diet and trophic diversity of six declining farmland birds
Mean percentage of reads (a measure of abundance) and OTUs (a measure of richness) of each phylum of Arthropoda present on the diet of studied farmland bird species, with phylum Insecta data broken down into orders. Percentages > 10% are detailed numerically. Among Insect’s orders, those with a percentage > 2% are identified. Note that samples of great bustard, little bustard, pin-tailed sandgrouse, black-bellied sandgrouse, and red-legged partridges were collected during the non-breeding season, whereas samples of common quail were collected during the breeding season. The average number of OTUs per species and diet taxa is provided in Supplementary Table S3 online.
