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Here, we used more than three decades of mark-recapture data in a natural population of the endangered meadow viper (Vipera ursinii ursinii) to unravel the patterns of temporal variation in reproductive traits, local climatic determinants of inter-annual variation in reproduction and the potential buffering effects of life cycle on population growth rate. We found significant inter-annual variation in annual body growth, gestation length, post-parturition body condition, clutch success and offspring traits at birth, but little temporal effects in reproductive effort. Temperature during gestation was the most influential local climatic determinant by shortening gestation length, and increasing clutch success and post-parturition body condition. Neither air humidity nor insolation was found to influence reproduction.

Here, we used more than three decades of mark-recapture data in a natural population of the endangered meadow viper (Vipera ursinii ursinii) to unravel the patterns of temporal variation in reproductive traits, local climatic determinants of inter-annual variation in reproduction and the potential buffering effects of life cycle on population growth rate. We found significant inter-annual variation in annual body growth, gestation length, post-parturition body condition, clutch success and offspring traits at birth, but little temporal effects in reproductive effort. Temperature during gestation was the most influential local climatic determinant by shortening gestation length, and increasing clutch success and post-parturition body condition. Neither air humidity nor insolation was found to influence reproduction.

This spreadsheet contains the data that has been analysed in the paper entitled  Diversity, plasticity and asynchrony of actuarial and reproductive senescence in the Collembola Folsomia candida (Willem, 1902)Thomas Tully Original Research, Front. Ecol. Evol. - Behavioral and Evolutionary Ecology 10.3389/fevo.2023.1112045 220 isolated individuals of the Collembola Folsomia candida have been raised and followed until their death. The Collembola belong to 11 clonal lineages grouped into two distinct clades (A and B, see "Clones" sheet). Half of the Collembola have been raised in an environment where food was provided ad libitum (high food, "+"), while for the other half, food was available only one day per week (low food "-").We report the age of death in the "Lifespan" sheet, together with the Collembola size at death, and their lifetime reproductive success.We report the clutch size (number of eggs) of each clutch laid by each individual in the "Reproduction" sheet. For each clutch we have the Collembola size and for some of the clutches the mean egg size and proportion of sterile eggs. In the "Egg_size" sheet we put all the egg size measurements that have been made (one line per egg measured). In the "Cumulative_Fecundity" sheet, we have the age, fecundity and cumulative fecundity for each laying event and also for the individual death ("clutch number=0 for death).

This spreadsheet contains the data that has been analysed in the paper entitled  Diversity, plasticity and asynchrony of actuarial and reproductive senescence in the Collembola Folsomia candida (Willem, 1902)Thomas Tully Original Research, Front. Ecol. Evol. - Behavioral and Evolutionary Ecology 10.3389/fevo.2023.1112045 220 isolated individuals of the Collembola Folsomia candida have been raised and followed until their death. The Collembola belong to 11 clonal lineages grouped into two distinct clades (A and B, see "Clones" sheet). Half of the Collembola have been raised in an environment where food was provided ad libitum (high food, "+"), while for the other half, food was available only one day per week (low food "-").We report the age of death in the "Lifespan" sheet, together with the Collembola size at death, and their lifetime reproductive success.We report the clutch size (number of eggs) of each clutch laid by each individual in the "Reproduction" sheet. For each clutch we have the Collembola size and for some of the clutches the mean egg size and proportion of sterile eggs. In the "Egg_size" sheet we put all the egg size measurements that have been made (one line per egg measured). In the "Cumulative_Fecundity" sheet, we have the age, fecundity and cumulative fecundity for each laying event and also for the individual death ("clutch number=0 for death).

This dataset gather the data used in the mansucript entitled Micro-geographic shift between negligible and actuarial senescence in a wild snake. Each sheet of data refers to a specific figure from the article.

This dataset gather the data used in the mansucript entitled Micro-geographic shift between negligible and actuarial senescence in a wild snake. Each sheet of data refers to a specific figure from the article.

1. Most ectotherms follow the temperature-size rule (TSR): in cold environments individuals grow slowly but reach a large asymptotic length. Intraspecific competition can induce plastic changes of growth rate and asymptotic length and competition may itself be modulated by temperature. 2. Our aim is to disentangle the joint effects of temperature and intraspecific competition on growth rate and asymptotic length. 3. We used two distinct clonal lineages of the Collembola Folsomia candida, to describe thermal reaction norms of growth rate, asymptotic length and reproduction over 6 temperatures between 6°C and 29°C. In parallel, we measured the long-term size-structure and dynamics of populations reared under the same temperatures to measure growth rates and asymptotic lengths in populations and to quantify the joint effects of competition and temperature on these traits. 4. We show that intraspecific competition modulates the temperature-size rule. In dense populations there is a direct negative effect of temperature on asymptotic length, but there is no temperature dependence of the growth rate, the dominant factor regulating growth being competition. The two lineages responded differently to the joint effects of temperature and competition on growth and asymptotic size and these genetic differences have marked effects on population structure along our temperature gradient. 5. Our results reinforce the idea that the TSR response of ectotherms can be modulated by biotic and abiotic stressors when studied in non-optimal laboratory experiments. Untangling complex interactions between environment and demography will help to understand how size will respond to environmental change and how climate change may influence population size structure.