Pielou’s J

{
  "id": "MLC-T-CHM-008967",
  "term": "Pielou’s J",
  "field": "Chemistry",
  "definition": "A measure of species evenness within an ecological community, quantifying how equally abundant different species are. It is calculated by dividing the observed Shannon-Wiener diversity index by the maximum possible diversity for the given number of species. Values range from 0 to 1, with 1 indicating perfect evenness.",
  "subject": "Chemistry and Human Health",
  "see_also": [
    "Shannon-Wiener diversity index",
    "community",
    "species evenness",
    "species richness"
  ],
  "references": [
    "PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 927 (https://doi.org/10.1351/PAC-REC-08-07-09)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/pielous-j/"
}