Supplementary materials of the article submitted to BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY Plasticity and flexibility in the anti-predator responses of treefrog tadpoles. Castellano Sergio (1), Racca Luca (1), Friard Olivier (1) (1) Department of Life Science and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123 Torino (Italy) email: sergio.castellano@unito.it 1 - behaviour_N532.csv. The file contains the eight descriptors of the tadpole spatial behavior, obtained from the semi-automatic analyses of 266 video recordings. In each video, there were two tadpoles, thus the file has 532 records. DISPL: the between-frame average displacement (DISPL); CD: the mean distance from the cage; bTD: the mean distance between the two tadpoles REST: the portion of frames during which the tadpole was resting mMD: the mean of movement durations vMD: the varianceof movement durations CP: cage proximity (CP) WD: the average distance from the arena wall PC1: first principal component PC2: second principal component PC3: third principal component The file contains 13 variables, which describe the case: FILE_NAME: the name of the txt file that contains the spatial coordinates obtained from the video analyses RASPBERRY: the alphanumeric code of the raspberry used in the video-recording RASP: the numeric code of the raspberry FAMILY_treat: the code of the basket where the tadpoles were raised, FAMILY: the combined identity of the mother (first letter) and the father (number) MOTHER: the mother FATHER: the father TREAT: the ontogenetic treatment (N = no predator; P = predator) REPL: the number of the replicate (either 1 or 2) TADPOLE: the number randomly assigned to each of the two tadpoles recorded during a single trial. QUARTET: the quartet from the incomplete factorial design (1: with mothers E and F and with fathers 5 and; 2: with mothers R and S and fathers 16 and 17) 2 - behaviour_N64.csv Derived from behaviour_N532.csv, by averaging over 32 experimental units in the two treatments. The identifying variables are the same of behaviour_N532.csv, whereas: ACTIVITY is the by-FAMILY_treat average of PC1 POSITION is the by-FAMILY_treat average of PC2 3 – morphology_froglets.csv Morphometric variables of the 232 tadpoles that completed metamorphosys: snout-vent lengths (SVL), elbow-to-elbow distance (EtoE), femur length (FemL), tibia length (TL), and foot length (FootL). With the exception of EtoE, all the other traits were measured from the ventral and dorsal pictures and their averages were computed. Body size was the first principal component extracted from the correlation matrix of these log-transformed morphometric traits. 4 – tailshape(PC1).csv PC1 of the Procrustes coordinates of the 155 tadpoles, whose pictures have been analyzed with geomorph. ID: code specific for the family, treatment, and replicate Treatment: ontogenetic treatment (either P, raised with predators, or N, raised without predators) Mother: mother identity Father: father identity Quartet: experimental quartet Trough: id code for trough Replicate: the replicate number, within family and treatment PC1: first principal component PC1adj_qu: Adjusted PC1 with respect to quartets. Between-quartet differences were eliminated by applying the formula: PC1_adj (i, qu) = (PC1(i, qu) - quPC1mean(qu)) + PC1mean where quPC1mean(qu) is the mean PC1 in quartet qu and PC1mean is overall mean of PC1 5. trough_activity.csv The file contains the counting of tadpoles that were swimming or resting within the rearing baskets. Nn: progressive number Day: code of the Day, when the counting was carried out Hour: Hour of the day, when the counting was carried out day_phase: 1, early morning (from 7 to 10 am); 2,late morning and early afternoon (from 10 am to 2:30 pm); 3, late afternoon (from 2:30 to 6:00 pm); 4, evening (after 6:00 pm). met_cond: meteorological conditions temp: water temperature QUARTET: experimental quartet Mother: id of the mother Father: id of the father Treatment: ontogenetic treatment (either P, raised with predators, or N, raised without predators) Replicate: the replicate number, within family and treatment TOTAL: number of tadpoles in the rearing basket WALL: number of tadpoles along the wall of the basket SWIMMING: number of tadpoles swimming in the rearing basket fq_moving: frequency of active tadpoles, (WALL + SWIMMING)/TOTAL