Multiple growth-correlated life history traits estimated simultaneously in individuals

9301 8 66990 2 186013 document 66990 Multiple growth-correlated life history traits estimated simultaneously in individuals.pdf application/pdf 154985a98cc0c9101623014b36baf269 MD5 833089 2016-07-22 12:17:48 https://pure.iiasa.ac.at/id/eprint/9301/1/Multiple%20growth-correlated%20life%20history%20traits%20estimated%20simultaneously%20in%20individuals.pdf 9301 1 1 application/pdf text en public cc_by

Multiple growth-correlated life history traits estimated simultaneously in individuals.pdf

published 66991 2 186016 document 66991 lightbox.jpg image/png 5aacb449473d1e427edfc2c18b20a9f6 MD5 51543 2016-07-22 12:18:01 https://pure.iiasa.ac.at/id/eprint/9301/2/lightbox.jpg 9301 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/66990 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/66990 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/66990 archive 351 disk0/00/00/93/01 2016-01-15 08:44:12 2021-08-27 17:21:23 2016-01-15 08:44:12 article show 1 Mollet F.M. 8342 Ernande B. 7797 Brunel T. Rijnsdorp A.D. Multiple growth-correlated life history traits estimated simultaneously in individuals pub iis_ecl prog_eep We present a new methodology to estimate rates of energy acquisition, maintenance, reproductive investment and the onset of maturation (four-trait estimation) by fitting an energy allocation model to individual growth trajectories. The accuracy and precision of the method is evaluated on simulated growth trajectories. In the deterministic case, all life history parameters are well estimated with negligible bias over realistic parameter ranges. Adding environmental variability reduces precision, causes the maintenance and reproductive investment to be confounded with a negative error correlation, and tends, if strong, to result in an underestimation of the energy acquisition and maintenance and an overestimation of the age and size at the onset of maturation. Assuming a priori incorrect allometric scaling exponents also leads to a general but fairly predictable bias. To avoid confounding in applications we propose to assume a constant maintenance (three-trait estimation), which can be obtained by fitting reproductive investment simultaneously to size at age on population data. The results become qualitatively more robust but the improvement of the estimate of the onset of maturation is not significant. When applied to growth curves back-calculated from otoliths of female North Sea plaice Pleuronectes platessa, the four-trait and three-trait estimation produced estimates for the onset of maturation very similar to those obtained by direct observation. The correlations between life-history traits match expectations. We discuss the potential of the methodology in studies of the ecology and evolution of life history parameters in wild populations. 2010-01 published Wiley-Blackwell 10.1111/j.1600-0706.2009.17746.x XJ-10-004 Oikos; 119(1):10-26 (January 2010) (Published online 13 November 2009) [doi:10.1111/j.1600-0706.2009.17746.x] 1459 1238 public Oikos 119 1 10-26 TRUE 1600-0706 FALSE info:eu-repo/semantics/article