dorsal/arxiv
View SchemaComputer simulations of history of life: speciation, emergence of complex species from simpler organisms, and extinctions
| Authors | Debashish Chowdhury, Dietrich Stauffer |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0311002 |
| URL | https://arxiv.org/abs/q-bio/0311002 |
| DOI | 10.1016/j.physa.2004.05.023 |
Abstract
We propose a generic model of eco-systems, with a {\it hierarchical} food web structure. In our computer simulations we let the eco-system evolve continuously for so long that that we can monitor extinctions as well as speciations over geological time scales. {\it Speciation} leads not only to horizontal diversification of species at any given trophic level but also to vertical bio-diversity that accounts for the emergence of complex species from simpler forms of life. We find that five or six trophic levels appear as the eco-system evolves for sufficiently long time, starting initially from just one single level. Moreover, the time intervals between the successive collections of ecological data is so short that we could also study ``micro''-evolution of the eco-system, i.e., the birth, ageing and death of individual organisms.
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"abstract": "We propose a generic model of eco-systems, with a {\\it hierarchical} food web\nstructure. In our computer simulations we let the eco-system evolve\ncontinuously for so long that that we can monitor extinctions as well as\nspeciations over geological time scales. {\\it Speciation} leads not only to\nhorizontal diversification of species at any given trophic level but also to\nvertical bio-diversity that accounts for the emergence of complex species from\nsimpler forms of life. We find that five or six trophic levels appear as the\neco-system evolves for sufficiently long time, starting initially from just one\nsingle level. Moreover, the time intervals between the successive collections\nof ecological data is so short that we could also study ``micro\u0027\u0027-evolution of\nthe eco-system, i.e., the birth, ageing and death of individual organisms.",
"arxiv_id": "q-bio/0311002",
"authors": [
"Debashish Chowdhury",
"Dietrich Stauffer"
],
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"q-bio.PE"
],
"doi": "10.1016/j.physa.2004.05.023",
"title": "Computer simulations of history of life: speciation, emergence of complex species from simpler organisms, and extinctions",
"url": "https://arxiv.org/abs/q-bio/0311002"
},
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