Data from: Combining thermal and hydric constraints for spatially predicting the activity suitability of Neotropical Leptodactylid frogs

The data integrate empirical physiological, behavioral, and environmental
parameters to mechanistically assess how temperature and hydration jointly
constrain amphibian activity across space and time. We combined
experimentally obtained laboratory data — including thermal performance
curves for locomotor function, critical thermal limits (CTmin and CTmax),
evaporative water loss rates, and dehydration tolerance — with
microclimatic datasets. Using these empirical inputs and ready-to-use
microclimatic dataset, we parameterized a biophysical modeling workflow
that links organismal heat and mass transfer processes with ground-level
microclimate conditions. The R scripts provide mechanistic simulations
used to estimate hourly body temperatures, evaporative water loss, and
cumulative constraints on surface activity time for three Neotropical frog
species (Leptodactylus fuscus, L. mystacinus, and L. macrosternum). Model
outputs include spatially explicit maps of thermal, hydric, and combined
suitability throughout each species’ current distribution and across
seasonal phases. This dataset and accompanying R code support these
results and provide a detailed framework for integrating physiological and
environmental data to model activity suitability under interacting thermal
and hydric constraints, offering a reproducible basis for future
mechanistic distribution modeling.