MS Reference Number: PONE-D-15-17561R2 MS Dryad ID: PONE-D-15-17561R2 MS Title: Population variation in the life history of a land fish, Alticus arnoldorum, and the effects of predation and density MS Authors: Platt, Edward; Ord, Terry MS Journal: PLOS ONE **FILE NAME AND CONTENT** PLATT-PONE-D-15-17561R2_populationlevel_data.txt - data on the estimated predation rate, density, female growth rate and ovarian weight of fish from five populations of Alticus arnoldorum from Guam **FILE STRUCTURE AND UNITS OF MEASUREMENTS** The file is a tab delimited text file. There are no missing values. Column headings are in the following order and format: population - The population of Alticus arnoldorum studied, named by its geographic location on the island of Guam predation_rate - The proportion of blenny plasticine models with evidence of at least one predatory "hit", defined as missing body parts or puncture wounds. See Morgans et al. 2014 BMC Evol Biol 14: 97 for details. juvenile_density_per_m2 - The average number of juveniles per metre squared observed over various time periods in quadrates placed at various locations within the habitat for each population. See Morgans et al. 2014 BMC Evol Biol 14: 97 for details. adult_density_per_m2 - The average number of adults per metre squared observed over various time periods in quadrates placed at various locations within the habitat for each population. See Morgans et al. 2014 BMC Evol Biol 14: 97 for details. growth_rate_exponent - Female growth rate measured as the change in pre-anal length (in millimetres) per day estimated from the computed population exponents of the best-supported model reported in Table 2. ovarian_weight_intercept - The ovarian weight measured as the natural log of weight (g) controlling for pre-anal length estimated from the computed population intercepts of the best-supported model reported in Table 1. **FILE NAME AND CONTENT** PLATT-PONE-D-15-17561R2_growth_data.txt - data on the estimated age and size of female fish from five populations of Alticus arnoldorum from Guam **FILE STRUCTURE AND UNITS OF MEASUREMENTS** The file is a tab delimited text file. There are no missing values. Column headings are in the following order and format: population - The population of Alticus arnoldorum studied, named by its geographic location on the island of Guam age_days - The estimated age of a female in days estimated from otolith microincrements. preanal_length_mm - The pre-anal length of a female in millimetres. **FILE NAME AND CONTENT** PLATT-PONE-D-15-17561R2_ovaryweight_data.txt - data on the size, weight of ovaries and reproductive state of female fish from five populations of Alticus arnoldorum from Guam **FILE STRUCTURE AND UNITS OF MEASUREMENTS** The file is a tab delimited text file. There are no missing values. Column headings are in the following order and format: population - The population of Alticus arnoldorum studied, named by its geographic location on the island of Guam preanal_length_mm - The pre-anal length of a female in millimetres. ovary_weight_grams - The wet weight of the ovaries in grams. probable_latest_egg_stage - The last egg stage found in ovaries that was used to estimate the reproductive state of a female. **DATA COLLECTOR** Specimens and life history data were collected and compiled by Edward R. M. Platt (ermplatt@gmail.com) and Terry J. Ord (t.ord@unsw.edu.au). Predation and density data was collected by Courtney Morgans (c.morgans@uq.edu.au); see also http://www.dx.doi.org/10.5061/dryad.r92b0