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. 2015 Jul 28;10(7):e0133140. doi: 10.1371/journal.pone.0133140

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© 2015 Chantepie et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 1 — As ejaculate size (A) measures were intra-annually repeated raw data cannot be used to assess age-related variation. Age-related size effect was estimates using mixed model on phenotypical data (see Material and method and Results; posterior mode ± Credible Interval). For Courtship display rate (B), Egg production (C) and Sperm viability (D), raw data were plotted (mean ± SE). All traits showed phenotypic senescence (see Results). The ages in grey were not included into analyses.