{
  "annotation_id": "3e7d7f54-8461-4841-b25d-3cfca5632d68",
  "date_created": "2026-03-02T18:01:32.291000Z",
  "date_modified": "2026-03-02T18:01:32.291000Z",
  "file_hash": "1d4d84a98bc8b46a3cfb30c26a22f030ccb6cf5ec3c7331ac4d3fa3ae307950a",
  "private": false,
  "record": {
    "abstract": "We introduce a simple computational model that, with a microscopic dynamics\ndriven by natural selection and mutation alone, allows the description of true\nspeciation events. A statistical analysis of the so generated evolutionary tree\ncaptures realistic features showing power laws for frequency distributions in\ntime and size. Albeit these successful predictions, the difficulty in obtaining\npunctuated dynamics with mass extinctions suggests the necessity of decoupling\nmicro and macro-evolutionary mechanisms in agreement with some ideas of Gould\u0027s\nand Eldredge\u0027s theory of punctuated equilibrium.",
    "arxiv_id": "q-bio/0509032",
    "authors": [
      "V. Schwammle",
      "E. Brigatti"
    ],
    "categories": [
      "q-bio.PE"
    ],
    "doi": "10.1209/epl/i2006-10095-7",
    "title": "Speciational view of macroevolution: are micro and macroevolution   decoupled?",
    "url": "https://arxiv.org/abs/q-bio/0509032"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6f00efa8-4966-4c26-81a8-9f3978ab8e8b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}