"DD" meaning in Conventions internationales

{
  "categories": [
    {
      "kind": "other",
      "name": "Symboles en conventions internationales",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Conventions internationales",
      "orig": "conventions internationales",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "De l’anglais Data Deficient."
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "symbol",
  "pos_title": "Symbole",
  "related": [
    {
      "word": "CR"
    },
    {
      "word": "EN"
    },
    {
      "word": "EW"
    },
    {
      "word": "EX"
    },
    {
      "word": "LC"
    },
    {
      "word": "NE"
    },
    {
      "word": "NT"
    },
    {
      "word": "VU"
    }
  ],
  "senses": [
    {
      "glosses": [
        "(UICN) Statut de conservation d’une espèce signifiant « données insuffisantes », pas assez de données pour évaluer le risque d’extinction."
      ],
      "id": "fr-DD-conv-symbol-oZ29GCJb"
    }
  ],
  "tags": [
    "invariable"
  ],
  "word": "DD"
}

{
  "categories": [
    "Symboles en conventions internationales",
    "conventions internationales"
  ],
  "etymology_texts": [
    "De l’anglais Data Deficient."
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "symbol",
  "pos_title": "Symbole",
  "related": [
    {
      "word": "CR"
    },
    {
      "word": "EN"
    },
    {
      "word": "EW"
    },
    {
      "word": "EX"
    },
    {
      "word": "LC"
    },
    {
      "word": "NE"
    },
    {
      "word": "NT"
    },
    {
      "word": "VU"
    }
  ],
  "senses": [
    {
      "glosses": [
        "(UICN) Statut de conservation d’une espèce signifiant « données insuffisantes », pas assez de données pour évaluer le risque d’extinction."
      ]
    }
  ],
  "tags": [
    "invariable"
  ],
  "word": "DD"
}