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Título

Diversity of ageing across the tree of life

Autor Jones, Owen R.; García González, María Begoña
Fecha de publicación 8-dic-2013
EditorNature Publishing Group
Citación Nature (on-line first): (2013)
Resumen[EN] Evolution drives, and is driven by, demography. A genotype moulds its phenotype’s age patterns of mortality and fertility in an environment; these two patterns in turn determine the genotype’s fitness in that environment. Hence, to understand the evolution of ageing, age patterns of mortality and reproduction need to be compared for species across the tree of life. However, few studies have done so and only for a limited range of taxa. Here we contrast standardized patterns over age for 11 mammals, 12 other vertebrates, 10 invertebrates, 12 vascular plants and a green alga. Although it has been predicted that evolution should inevitably lead to increasing mortality and declining fertility with age after maturity, there is great variation among these species, including increasing, constant, decreasing, humped and bowed trajectories for both long- and short-lived species. This diversity challenges theoreticians to develop broader perspectives on the evolution of ageing and empiricists to study the demography of more species.
Descripción Owen R. Jones et al.
Versión del editorhttp://dx.doi.org/10.1038/nature12789
URI http://hdl.handle.net/10261/88344
DOI10.1038/nature12789
ISSN0028-0836
E-ISSN1476-4687
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