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README Nicolas Mouret and Elvire Bestion 2026-02-16 1. General Information 1.1. Title of Dataset Data and code for: Warmer climates disrupt the activity-related pace-of-life syndrome in a viviparous lizard, Mouret et al, in review in Ecological Monographs 1.2. Author information First author information Name: Nicolas Mouret Orcid: 0009-0005-7764-0158 Institution: Centre de Recherche sur la Biodiversité et l’Environnement (CRBE), UMR 5300 CNRS-IRD-TINP-UT3, Station d’Ecologie Théorique et Expérimentale, CNRS, UAR 2029 Address: Université Toulouse III – Paul Sabatier, Bât 4R1, 118 route de Narbonne, 31062 Toulouse, France Email: nicolas.mouret@utoulouse.fr Last author information Name: Julien Cote Orcid: 0000-0002-4453-5969 Institution: Centre de Recherche sur la Biodiversité et l’Environnement (CRBE), UMR 5300 CNRS-IRD-TINP-UT3 Address: Université Toulouse III – Paul Sabatier, Bât 4R1, 118 route de Narbonne, 31062 Toulouse, France Email: julien.cote@univ-tlse3.fr 1.3. Abstract The expected changes in pace-of-life with climate warming should impact the individual variation in behaviour (aka personality traits) within populations with consequences on eco-evolutionary dynamics. Yet, the effect of climatic conditions on personality traits is rarely studied over entire lifetimes, making its association with the pace-of-life difficult to investigate. Here, using a dataset spanning 10 years of a semi-natural warming experiment carried out on the common lizard Zootoca vivipara, we studied the effect of age on 3 personality traits (activity, exploration, sociability). We further investigated climate impacts on activity level, a trait particularly embedded within a pace-of-life syndrome with more active individuals living at a faster pace. We hypothesized that warmer climates would accelerate the ageing of activity compared to present-day climates, with consequences on all fitness components. Beyond being repeatable through the lifetime, activity and exploration showed similar ageing patterns, with adults being more active and exploratory than juveniles but becoming less so as they aged as a result of both selective disappearance and plastic changes. Sociability was less repeatable, and showed weaker ageing patterns. In a present-day climate, higher activity was linked to a faster pace of life with improved growth, survival and reproduction rates in early life and a reduced life expectancy. A warmer climate mitigated this activity-related pace-of-life, with individuals reaching similar performances regardless of their activity level. This led to an overall lower intraspecific variation in activity in warmer climates potentially reducing the resilience to warmer climates and other environmental changes. Hence such a pace-of-life alteration likely have consequences for their population dynamics and persistence and, given the link of activity with metabolism, energy expenditure and foraging, likely influences consumptive and non-consumptive interactions with species at lower trophic levels and so ecological networks as a whole. 1.4. Keywords animal personality, climate change, activity, ontogeny, plasticity, pace-of-life syndrome, reptile, individual-centring 1.5. Date of data collection Data was collected during a long-term mesocosm experiment from 2011 to 2022. 1.6. Taxon or species from which data was collected Common lizard, Zootoca vivipara 2. Sharing and access information 2.1. Licenses and restrictions placed on the data The data is usable under Creative Commons Attribution 4.0 International licence but we would appreciate if we were contacted prior to meaningful use, and this dataset and the matching paper cited if appropriate. 2.2. Links to publications that cite or use the data A link will be provided once the publication is accepted. 2.3. Links to other publicly accessible locations of the data Data is available for review, and will be deposited on zenodo upon acceptance 2.4. Was data derived from another source? no 2.5. Recommended citation for this dataset A citation will be provided once deposited on zenodo 3. Data and file overview 3.1. Directory structure . |- Data | |- df_mouret_et_al.csv | |- pedigree_mouret_et_al.csv |- Analysis_R | |- 01_Functions.R | |- 02_Ontogeny.R | |- 03_Fitness.R | |- 04_SurPlast.R | |- 05_Heritability.R | |- 06_Figures.R | |- 07_Demo_PCA_ageCentering.R |- Output | |- MCMCoutput | | |- model_herit_activity_ad_fisher.rds | | |- model_herit_activity_ad_mid.rds | | |- model_herit_activity_ad_ni.rds | | |- model_herit_activity_juv_fisher.rds | | |- model_herit_activity_juv_mid.rds | | |- model_herit_activity_juv_ni.rds | | |- model_herit_exploration_ad_fisher.rds | | |- model_herit_exploration_ad_mid.rds | | |- model_herit_exploration_ad_ni.rds | | |- model_herit_exploration_juv_fisher.rds | | |- model_herit_exploration_juv_mid.rds | | |- model_herit_exploration_juv_ni.rds | | |- model_herit_sociability_ad_fisher.rds | | |- model_herit_sociability_ad_mid.rds | | |- model_herit_sociability_ad_ni.rds | | |- model_herit_sociability_juv_fisher.rds | | |- model_herit_sociability_juv_mid.rds | | |- model_herit_sociability_juv_ni.rds | |- plot_activity_global.jpeg | |- plot_activity_global.pdf | |- plot_exploration_global.jpeg | |- plot_exploration_global.pdf | |- plot_fit.jpeg | |- plot_fit.pdf | |- plot_sociability_global.jpeg | |- plot_sociability_global.pdf | |- plot_survplast.jpeg | |- plot_survplast.pdf | |- tables_main.docx | |- tables_pca.docx | |- tables_supp.docx |- Analysis.Rproj |- R_session_info.txt |- README.docx |- README.html |- README.md |- README.Rmd |- renv.lock 3.2. Description of directories Name Description Data Directory for datasets used in this study Analysis_R Directory for R scripts used in this study Output Directory for saving figures and tables resulting from the analysis found in the main article and supplementary data Output/MCMCoutput Directory for saving outputs from the heritability mcmcglmm models as they are slow to run 3.3. Description of primary data files The data files are in the /Data folder Name Description df_mouret_et_al.csv Database of lizard personality traits and fitness outcomes over the 10 years of experiment pedigree_mouret_et_al.csv Pedigree for the heritability 3.4. Description of R scripts The R scripts are in the /Analysis_R folder Name Description 01_Functions.R functions used in the main scripts 02_Ontogeny.R script for investigating the ontogeny of activity, exploration and sociability 03_Fitness.R script for investigating how Activity score and Climate treatment imapact fitness proxies 04_SurPlast.R script for investigating whether survival or temporal changes explain ageing dynamics in diferent climates 05_Heritability.R script for investigating the heritability of activity, exploration and sociability 06_Figures.R script for outputting figures from the analyses 07_Demo_PCA_ageCentering.R demonstration script for the behaviour PCA and the age centering (not to run as the variables are directly in the dataset) 3.5. Description filest in the output folder derived using R The project leads to the creation of intermediate calculation steps from the R script that are stored in the /Output/MCMCoutput folder and of figures and tables resulting from the analysis found in the main article and supplementary data that are stored in the /Output folder. Files in the /Output folder Name Description plot_activity_global.jpeg figure 2 : effects of ageing and climate on activity, as a jpeg plot_activity_global.pdf figure 2 : effects of ageing and climate on activity, as a pdf plot_exploration_global.jpeg figure S2 : effects of ageing on exploration, as a jpeg plot_exploration_global.pdf figure S2 : effects of ageing on exploration, as a pdf plot_fit.jpeg figure 4: the relationship between activity and longevity depending on climate, as a jpeg plot_fit.pdf figure 4: the relationship between activity and longevity depending on climate, as a pdf plot_sociability_global.jpeg figure S3 : effects of ageing on sociability, as a jpeg plot_sociability_global.pdf figure S3 : effects of ageing on sociability, as a pdf plot_survplast.jpeg figure 3 : survival and temporal changes in activity depending on climate, as a jpeg plot_survplast.pdf figure 3 : survival and temporal changes in activity depending on climate, as a pdf tables_main.docx word document containing the formatted tables present in the main text tables_pca.docx word document containing the formatted table of pca of behavioural traits tables_supp.docx word document containing the formatted tables present in the supplementary document Files in the /Output/MCMCoutput folder This folder contains R objects from long calculation steps to avoid rerunning models Name Description model_herit_activity_ad_fisher.rds the R object resulting from the heritability model of adult activity with fisher priors model_herit_activity_ad_mid.rds the R object resulting from the heritability model of adult activity with mid priors model_herit_activity_ad_ni.rds the R object resulting from the heritability model of adult activity with ni priors model_herit_activity_juv_fisher.rds the R object resulting from the heritability model of juvenile activity with fisher priors model_herit_activity_juv_mid.rds the R object resulting from the heritability model of juvenile activity with mid priors model_herit_activity_juv_ni.rds the R object resulting from the heritability model of juvenile activity with ni priors model_herit_exploration_ad_fisher.rds the R object resulting from the heritability model of adult exploration with fisher priors model_herit_exploration_ad_mid.rds the R object resulting from the heritability model of adult ex