DOI: 10.5061/dryad.rjdfn2zpm
title: Data from: Feeding impacts thermoregulatory behavior and consistency across day and night in a diurnal lizard

description: Thermoregulatory decisions impact nearly every aspect of the physiology,
 performance, and ecology of ectotherms. Thus, understanding the factors
 which influence ectotherm thermoregulatory behaviors across ecological
 contexts and environmental conditions is essential in predicting responses
 to novel or changing environments. Specifically, quantifying such
 behaviors across the entire diel cycle – day and night – is key to
 understanding the impact on physiological processes that happen during
 periods of inactivity, such as digestion. Utilizing high-resolution
 time-series data, we quantified the diel cycle of thermoregulatory
 behaviors in fed and unfed common wall lizards (Podarcis muralis) over
 five consecutives days. We first tested the hypothesis that feeding status
 affects diurnal and nocturnal thermoregulation. Second, we quantified the
 impact of feeding status on patterns of consistency and correlation within
 and among individuals in diurnal and nocturnal thermoregulatory behaviors.
 Lizards modulated their behavior in response to feeding status, conserving
 energy by choosing lower temperatures when unfed and by seeking higher
 temperatures when fed. We observed consistent among-individual differences
 (repeatability) in thermoregulatory behaviors across diurnal and nocturnal
 periods. Furthermore, diurnal and nocturnal thermoregulatory behaviors
 were positively correlated within individuals. We demonstrate that this
 diurnal ectotherm actively thermoregulates during the night, a finding
 particularly pertinent in urban environments, where artificial light and
 heat can prolong the active period of lizards. Overall, this research
 provides valuable insight into the flexible thermoregulation strategies of
 a species highly successful in expanding its range, demonstrating the
 importance of considering both diurnal and nocturnal activity.
description: # Data from: Feeding impacts thermoregulatory behavior and consistency
 across day and night in a diurnal lizard Dataset DOI:
 [10.5061/dryad.rjdfn2zpm](10.5061/dryad.rjdfn2zpm) ## Description of the
 data and file structure Data description for data files associated with
 Perry et al., Publication for *Behavioral Ecology*. ### Files and
 variables #### File: Data\_BehaEco\_Perry2025.csv **Description:**  #####
 Variables * ID: (character) The identity of the lizard * Sexe: (character)
 The sexe of the lizard * State: (character) The feeding statut of the
 lizard * Period: (character) The diel cycle period, day or night *
 Day: (numeric) The day of the consecutive measure (1 to 5 days) *
 cricket_eaten: (numeric) The number of cricket eaten by the lizard for the
 fed group * Group: (numeric) The experimental group passed in the thermal
 gradient (1 or 2) * Session: (numeric) The experimental session passed in
 the thermal gradient, correspond to the feeding groups (1 or 2) *
 mass1: (numeric) The mass of the lizard before the 3 days of feeding or
 not feeding (g) * mass2: (numeric) The mass of the lizard before the
 thermoregulatory behavioral experiment (g) * mass3: (numeric) The mass of
 the lizard after the thermoregulatory behavioral experiment (g) *
 SVL: (numeric) The body size of the lizard (Snout–vent length) (mm) *
 SMI:  (numeric) The scaled mass index of the lizard (g) *
 LowerTsel:  (numeric) The lower selected temperature (°C) *
 UpperTsel: (numeric) The upper selected temperature (°C) * Tsel: (numeric)
 The selected temperature (°C) * Tpref: (numeric) The thermal preference
 temperature (°C) * Tbmax: (numeric) The maximum of body temperature of the
 lizard (°C) * Tbmin: (numeric) The maximum of body temperature of the
 lizard (°C) * Tmean: (numeric) The mean of body temperature of the lizard
 (°C) * Tmed: (numeric) The median of body temperature of the lizard (°C) *
 PC1: (numeric) The score of the thermophilic gradient of the first axes
 from the PCA analysis * PC2: (numeric) The score of the thermoregulatory
 precision of the second axes from the PCA analysis Missing data code: NA