dorsal/arxiv
View SchemaSpontaneous natural selection in a model for spatially distributed interacting populations
| Authors | Monica F. B. Moreira, Marcio P. Dantas, A. T. Costa Jr |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0506018 |
| URL | https://arxiv.org/abs/q-bio/0506018 |
Abstract
We present an individual-based model for two interacting populations diffusing on lattices in which a strong natural selection develops spontaneously. The models combine traditional local predator-prey dynamics with random walks. Individual's mobility is considered as an inherited trait. Small variations upon inheritance, mimicking mutations, provide variability on which natural selection may act. Although the dynamic rules defining the models do not explicitly favor any mobility values, we found that the average mobility of both populations tend to be maximized in various situations. In some situations there is evidence of polymorphism, indicated by an adaptive landscape with many local maxima. We provide evidence relating selective pressure for high mobility with pattern formation.
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"date_created": "2026-03-02T18:01:32.360000Z",
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"abstract": "We present an individual-based model for two interacting populations\ndiffusing on lattices in which a strong natural selection develops\nspontaneously. The models combine traditional local predator-prey dynamics with\nrandom walks. Individual\u0027s mobility is considered as an inherited trait. Small\nvariations upon inheritance, mimicking mutations, provide variability on which\nnatural selection may act. Although the dynamic rules defining the models do\nnot explicitly favor any mobility values, we found that the average mobility of\nboth populations tend to be maximized in various situations. In some situations\nthere is evidence of polymorphism, indicated by an adaptive landscape with many\nlocal maxima. We provide evidence relating selective pressure for high mobility\nwith pattern formation.",
"arxiv_id": "q-bio/0506018",
"authors": [
"Monica F. B. Moreira",
"Marcio P. Dantas",
"A. T. Costa Jr"
],
"categories": [
"q-bio.PE"
],
"title": "Spontaneous natural selection in a model for spatially distributed interacting populations",
"url": "https://arxiv.org/abs/q-bio/0506018"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "555a77fa-95b5-4e2b-9c4b-4edfc733ab11",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
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