DOI: 10.5061/dryad.6j56v
title: Data from: The modulating role of traits on the biogeographic dynamics of chondrichthyans from the Neogene to the present

description: The environmental transformations that occurred during the Neogene had
 profound effects on spatio-temporal biodiversity patterns, yet the
 modulating role of traits (i.e. physiological, ecological and life history
 traits) remains little understood. We tested this idea using the Neogene
 fossil record of chondrichthyans along the temperate Pacific coast of
 South America (TPSA). Information of georeferenced occurrences and
 ecological and life history information of 38 chondrichthyan fossil genera
 in 42 Neogene sites was collected. Global georeferenced records were used
 to estimate present-day biogeographic distributions of the genera and to
 characterize the range of oceanographic conditions in which each genus
 lives as a proxy of their realized niche. Biogeographic range shifts
 (Neogene - present) were evaluated at regional and local scales. The role
 of traits as drivers of different range dynamics was evaluated using
 random forest models. The magnitude and direction of biogeographic range
 shifts were different at both spatial scales. At a regional scale, 34% of
 genera contracted their ranges, disappearing from the TPSA. At a local
 scale, a similar proportion of genera expanded and contracted their
 southern endpoints of distribution. The models showed a high precision at
 both spatial scales of analyses, but the relative importance of predictor
 variables were different. At a regional scale, disappearing genera tended
 to have a higher tolerance to salinity, lower sea surface temperature
 (SST) range, and smaller body sizes. At a local scale, genera contracting
 their ranges tended to live at greater depths, tolerate lower levels of
 primary productivity, and show a reduced tolerance to higher and lower SST
 ranges. The magnitude and direction of the changes in the range
 distribution were scale-dependent and variable across the genera. Hence,
 the multiple environmental exogenous factors interacted with taxon traits
 during the Neogene, creating a mosaic of biogeographic dynamics.
description: Supplementary Table 1.
 Georeferenced occurrences of chondricthyesGeoreferenced
 occurrences of fossil sharks, rays, and chimaeras from Neogene outcrops
 along the TPSA. Max: maximum assigned age, Min: minimum assigned
 age.Supplementary Table
 1.csvSupplementary Table 2.
 Summary of ecological and life-history and oceanographic
 toleranceSummary of ecological
 and life-history and oceanographic tolerance used for the analysis of
 biogeographic dynamics of marine chondrichthyans. Lat_S_fossil: Fossil
 southern latitude, Lat_S_current: Current southern latitude, Max: Maximum
 assigned age, Min: Minimum assigned age, Zmax: Maximum depth, SSTmax: Sea
 Surface Temperature maximum, SSTmin: Sea Surface Temperature minimum,
 SSTmedian: Sea Surface Temperature median, SST range: Sea Surface
 Temperature range, Salmax: Maximum salinity, Salmin: Minimum salinity,
 Salmedian: Median Salinity, Salrange: Salinity range, Ppmax: Primary
 productivity maximum, Ppmin: Primary productivity minimum, Ppmedian:
 Primary productivity median, Pprange: Primary productivity
 range.Supplementary Table
 2.csv