{
  "annotation_id": "ad2800a4-0674-44c8-bce8-08a35cafb84f",
  "date_created": "2026-03-02T18:01:31.408000Z",
  "date_modified": "2026-03-02T18:01:31.408000Z",
  "file_hash": "aca5b5cc2d5a5a7d2024f22a3827efb2b4a69365e35baebc8031ca616a66404c",
  "private": false,
  "record": {
    "abstract": "We propose a model based on coupled multiplicative stochastic processes to\nunderstand the dynamics of competing species in an ecosystem. This process can\nbe conveniently described by a Fokker-Planck equation. We provide an analytical\nexpression for the marginalized stationary distribution. Our solution is found\nin excellent agreement with numerical simulations and compares rather well with\nobservational data from tropical forests.",
    "arxiv_id": "q-bio/0403009",
    "authors": [
      "Simone Pigolotti",
      "Alessandro Flammini",
      "Amos Maritan"
    ],
    "categories": [
      "q-bio.PE",
      "cond-mat.stat-mech"
    ],
    "doi": "10.1103/PhysRevE.70.011916",
    "journal_ref": "Phys. Rev. E. 70(1), 011916 2004",
    "title": "A Stochastic Model for the Species Abundance Problem in an Ecological   Community",
    "url": "https://arxiv.org/abs/q-bio/0403009"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4b602955-d536-4726-a297-a7e8110fb9f4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}