dorsal/arxiv
View SchemaDynamics of mortality in protected populations
| Authors | Mark Ya. Azbel' |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0403007 |
| URL | https://arxiv.org/abs/q-bio/0403007 |
Abstract
Demographic data and recent experiments verify earlier predictions that mortality has short (few percent of the life span) memory of the previous life history, may be significantly decreased, reset to its value at a much younger age, and (until certain age) eliminated. Such mortality dynamics is demonstrated to be characteristic only of evolutionary unprecedented protected populations. When conditions improve, their mortality decreases stepwise. At crossovers the rate of decrease rapidly changes. The crossovers manifest the edges of the stairs in the universal ladder of rapid mortality adjustment to changing conditions. Mortality is dominated by the established universal law which reduces it to few biologically explicit parameters and which is verified with human and fly mortality data. Specific experiments to test universality of the law for other animals, and to unravel the mechanism of stepwise life extension, are suggested.
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"abstract": "Demographic data and recent experiments verify earlier predictions that\nmortality has short (few percent of the life span) memory of the previous life\nhistory, may be significantly decreased, reset to its value at a much younger\nage, and (until certain age) eliminated. Such mortality dynamics is\ndemonstrated to be characteristic only of evolutionary unprecedented protected\npopulations. When conditions improve, their mortality decreases stepwise. At\ncrossovers the rate of decrease rapidly changes. The crossovers manifest the\nedges of the stairs in the universal ladder of rapid mortality adjustment to\nchanging conditions. Mortality is dominated by the established universal law\nwhich reduces it to few biologically explicit parameters and which is verified\nwith human and fly mortality data. Specific experiments to test universality of\nthe law for other animals, and to unravel the mechanism of stepwise life\nextension, are suggested.",
"arxiv_id": "q-bio/0403007",
"authors": [
"Mark Ya. Azbel\u0027"
],
"categories": [
"q-bio.QM",
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"title": "Dynamics of mortality in protected populations",
"url": "https://arxiv.org/abs/q-bio/0403007"
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