Within-species variation in long-term trajectories of growth, fecundity and mortality in the Collembola Folsomia candida

Journal of Evolutionary Biology
F MallardThomas Tully

Abstract

Senescence--the progressive deterioration of organisms with age--affects many traits of which survival and reproduction are the most commonly studied. Recent comparative studies have revealed a remarkable amount of variation in the patterns of ageing across the tree of life. This between-species diversity raises many questions about the evolution of senescence and of the shapes of the life-history age trajectories. Here, we study how the different components of the shapes of these life-history age trajectories can vary within a single species to shed light on the possible constraints involved in their evolution. To do so, we closely followed in controlled laboratory conditions, and for more than 450 days, the mortality, body length and fecundity of small cohorts of two clonal lineages of the Collembola Folsomia candida. We studied three components of the adult mortality trajectory: the baseline mortality, onset and speed of senescence. We found that they can differ between strains of a single species in such a way that, remarkably, an increased life expectancy is not synonymous with a delayed senescence: the strain that grows bigger has the longest life expectancy but suffers from a precocious senescence. We observed marked dif...Continue Reading

References

Nov 24, 1977·Nature·T B Kirkwood
Sep 1, 1966·Journal of Theoretical Biology·W D Hamilton
Apr 27, 2001·Journal of Human Evolution·K HillR Wrangham
Sep 23, 2003·Science·William MairLinda Partridge
May 12, 2004·Theoretical Population Biology·James W VaupelJutta Gampe
Sep 10, 2004·Annual Review of Entomology·Michelle T Fountain, Steve P Hopkin
Oct 29, 2004·Nature·David N ReznickDionna E Ghalambor
Oct 25, 2006·Proceedings of the National Academy of Sciences of the United States of America·Stephan B Munch, Marc Mangel
Jan 17, 2009·Journal of Genetics·Michael R RoseLaurence D Mueller
Mar 28, 2009·Proceedings. Biological Sciences·Hillard S Kaplan, Arthur J Robson
Oct 5, 2011·Evolution; International Journal of Organic Evolution·Thomas Tully, Amaury Lambert
Nov 2, 2011·Biogerontology·Maarten J WensinkRudi G J Westendorp
Sep 8, 2012·Ecology and Evolution·Felix ZajitschekRobert Brooks
Oct 3, 2012·Evolution; International Journal of Organic Evolution·C R ArcherJ Hunt
Nov 3, 2012·Science·Annette Baudisch, James W Vaupel
Mar 29, 2013·The American Naturalist·Cornelia KrausDaniel E L Promislow
Dec 10, 2013·Nature·Owen R JonesJames W Vaupel
Oct 18, 2014·The American Naturalist·Vincent Le BourlotDavid Claessen
Dec 1, 1999·Evolution; International Journal of Organic Evolution·Jeffry L Dudycha, Alan J Tessier

❮ Previous
Next ❯

Citations

Sep 16, 2020·The Journal of Animal Ecology·Thomas TullyJean-Pierre Baron

❮ Previous
Next ❯

Related Concepts

Related Feeds

Candida albicans

Candida albicans is an opportunistic, fungal pathogen of humans that frequently causes superficial infections of oral and vaginal mucosal surfaces of debilitated and susceptible individuals. Discover the latest research on Candida albicans here.