Data from: Ppgm: an R package for integrating neontological, palaeontological, and climate data in a phylogenetic comparative framework

Understanding how changes in climate affect habitat availability for
species through time is critical for macroevolutionary, ecological, and
conservation research. When combined with palaeoclimate reconstructions,
the fossil record provides insights into how species’ geographic
distributions have responded to past climate shifts, including under
non-analogous climate conditions. PalaeoPhyloGeographic Models (PPGM)
offer a framework to integrate modern and palaeontological data into
phylogenetic comparative analyses of species climate tolerances. The ppgm
R package is an implementation of PPGM, which estimates species climate
envelopes, reconstructs ancestral climatic tolerances across phylogenies,
and projects these onto palaeoclimate maps to identify climatically
available regions through time. The package also supports direct inclusion
of fossil occurrences with associated palaeoclimate data, allowing a
reconstruction of past trends of species climate tolerances projected into
palaeoclimate maps to pinpoint the locations of climate availability
through time according to the fossil record. We demonstrate the broad
applicability of ppgm through detailed case studies, showing its potential
for addressing research questions in macroevolutionary and conservation
palaeobiology research. The ppgm package complements existing R packages
by allowing researchers to use analytical techniques on large integrated
datasets and facilitates reproducible analyses of species climate niches
over deep and shallow time.