# Load data
data(nematode.ave.mass)
# Find mass range within a family (e.g. Rhabditidae)
rhabditidae <- subset(nematode.ave.mass, Family == "Rhabditidae")
range(rhabditidae$Genus.Average.Mass, na.rm = TRUE)
# Convert to biomass (example: 100 individuals of Acanthopharynx)
100 * subset(nematode.ave.mass, Genus == "Acanthopharynx")$Genus.Average.Mass
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