Figure 3: A scatter plot of Sable Island horse microbiome ASV richness
versus standardized longitude coloured by parental status and shaped by
sandwort presence in a 150-m radius buffer surrounding the point of
sample collection. Points are shaped by whether sandwort is present
(circle: ●) or absent (square: ■) and coloured by whether mares were
with a foal (brown: ◙) or without a foal (light blue: ◙). Lines are
parameterized by estimates from multi-model inference model averaging,
typed by sandwort presence (present, dashed: —; absent, solid:— ) and coloured by parental status (with a foal, brown:— ; without a foal, light blue: — ).