{
  "annotation_id": "a5ffbb40-e311-4cb7-b8b2-4b032536cb82",
  "date_created": "2026-03-02T18:00:43.083000Z",
  "date_modified": "2026-03-02T18:00:43.083000Z",
  "file_hash": "e4cb58e83eaafa25ac99994031f1a6c5a36494571e1f088672699209d25eb75d",
  "private": false,
  "record": {
    "abstract": "The population is composed of individuals characterised by their genetic\nstrings, phenotypes and ages. We discuss the influence of probabilities of\nsurvival of the individuals on the dynamics and phenotypic variability of the\npopulation.\n  We show that constant survival probabilities of individuals are propitious\nfor preserving phenotypic variability of the population. For constant survival\nprobabilities oscillations of \u0027the average fitness\u0027 of the population and\nnormal distributions of the phenotypes are observed. When the probabilities of\nsurvival are directly proportinal to the individuals\u0027 adaptations the\npopulation can reach the maximum possible average adaptation, but the\nphenotypic variability of the population is completely lost and oscillations of\n\u0027the average fitness\u0027 of the population do not occur.\n  We also investigate the behaviour of the population caused by the\nprobabilities of survival that partly depend on the individuals\u0027 adaptations.\nThe role of the length of the individuals\u0027 genetic strings is considered here.",
    "arxiv_id": "physics/0301012",
    "authors": [
      "Iwona Mroz"
    ],
    "categories": [
      "physics.bio-ph",
      "q-bio"
    ],
    "doi": "10.1016/S0378-4371(03)00050-5",
    "title": "A model of population dynamics - further investigations",
    "url": "https://arxiv.org/abs/physics/0301012"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "eac0a6e0-b9e4-468a-9238-a10eda64eb11",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}