DOI: 10.5061/dryad.bk3j9kdkr
title: Data from: Data for habitat quality or quantity? Niche marginality across 21 plants and animals suggests differential responses between highland and lowland species to past climatic changes

description: Climatic changes can affect species distributions, population abundance,
 and evolution. Such organismal responses could be determined by the amount
 and quality of available habitats, which can vary independently. In this
 study, we assessed changes in habitat quantity and quality independently
 to generate explicit predictions of the species’ responses to climatic
 changes between Last Glacial Maximum (LGM) and present day. We built
 ecological niche models and distribution models for 21 reptile, mammal,
 and plant taxa from the Baja California peninsula inhabiting lowland or
 highland environments. Geological data suggests the CCSM global
 circulation model is a better representation of LGM climate for the Baja
 California peninsula. Significant niche divergence was detected for all
 clades within species, along with significant differences in the niche
 breadth and area of distribution between northern and southern clades.
 Most clades showed a reduction in distribution area towards LGM. Further,
 niche marginality (used as a measure of habitat quality) was higher during
 LGM for most clades, except for northern highland species. Our results
 suggest that changes in habitat quantity and quality can affect organismal
 response independently. This allows the prediction of genomic signatures
 associated with changes in effective population size and selection
 pressure that could be explicitly tested to support our models.
description: # Data from: Data for Habitat quality or quantity? Niche marginality
 across 21 plants and animals suggests differential responses between
 highland and lowland species to past climatic changes --- This dataset
 includes: 1. "Occurrences.zip": Occurrence records for 21 taxa
 of plant, mammal and reptile on the Baja California Peninsula used for
 ecological niche model analyses. *File list:
 \***Callisaurus_draconoides_1.csv \***Callisaurus_draconoides_2.csv
 \***Callisaurus_draconoides_3.csv \***Callisaurus_draconoides_4.csv
 \***Callisaurus_draconoides_5.csv \***Chaetodipus_arenarius_1.csv
 \***Chaetodipus_arenarius_2.csv \***Chaetodipus_spinatus_1.csv
 \***Chaetodipus_spinatus_2.csv \***Crotaphytus_vestigium_1.csv
 \***Crotaphytus_vestigium_2.csv \***Dipodomys_merriami_1.csv
 \***Dipodomys_merriami_2.csv \***Dipodomys_merriami_3.csv
 \***Dipodomys_merriami_4.csv \***Elgaria_1.csv \***Elgaria_2.csv
 \***Elgaria_3.csv \***Encelia_farinosa_1.csv \***Encelia_farinosa_2.csv
 \***Fouquieria_columnaris_1.csv \***Fouquieria_columnaris_2.csv
 \***Neotoma_bryanti_1.csv \***Neotoma_bryanti_2.csv
 \***Otospermophilus_1.csv \***Otospermophilus_2.csv
 \***Peromiscus_maniculatus_1.csv \***Petrosaurus_repens_1.csv
 \***Petrosaurus_repens_2.csv \***Petrosaurus_repens_3.csv \***Pinus_1.csv
 \***Pinus_2.csv \***Plestiodon_1.csv \***Plestiodon_2.csv
 \***Sceloporus_orcutti_1.csv \***Sceloporus_orcutti_2.csv
 \***Sceloporus_zosteromus_1.csv \***Sceloporus_zosteromus_2.csv
 \***Sorex_ornatus_1.csv \***Spilogale_gracilis_1.csv
 \***Stenocereus_gummosus_1.csv \***Urosaurus_nigricaudus_1.csv
 \***Urosaurus_nigricaudus_2.csv \***Urosaurus_nigricaudus_3.csv
 \***Urosaurus_nigricaudus_4.csv \***Uta_stansburiana_1.csv
 \***Uta_stansburiana_2.csv *Each ".csv" file includes the
 following columns: \***species: Species name \***longitude: Decimal
 longitude \***latitude: Decimal latitude 1.
 "Ecological_Niche_Models.zip": Raster outputs from distribution
 models for present day and LGM climate for all 21 taxa. *Subfolder
 structure: \***Callisaurus draconoides \***Callisaurus draconoides_1
 \*****Callisaurus draconoides_2 \***Callisaurus draconoides_3
 \*****Callisaurus draconoides_4 \***Callisaurus draconoides_5
 \***Chaetodipus_arenarius \***Chaetodipus_arenarius_1
 *Chaetodipus_arenarius_2 \***Chaetodipus_spinatus
 \***Chaetodipus_spinatus_1 *Chaetodipus_spinatus_2
 \***Crotaphytus_vestigium \***Crotaphytus_vestigium_1
 *Crotaphytus_vestigium_2 \***Dipodomys_merriami \***Dipodomys_merriami_1
 \*****Dipodomys_merriami_2 \***Dipodomys_merriami_3 \***Elgaria
 \***Elgaria_1 \*****Elgaria_2 \***Elgaria_3 \***Encelia_farinosa
 \***Encelia_farinosa_1 *Encelia_farinosa_2 \***Fouquieria_columnaris
 \***Fouqueria_columnaris_1 *Fouqueria_columnaris_2 \***Neotoma_bryanti
 \***Neotoma_bryanti_1 *Neotoma_bryanti_2 \***Otospermophilus
 \***Otospermophilus_1 *Otospermophilus_2 \***Peromiscus_maniculatus
 \***Permoiscus_maniculatus_1 \***Petrosaurus_repens
 \***Petrosaurus_repens_1 \*****Petrosaurus_repens_2
 \***Petrosaurus_repens_3 \***Pinus \***Pinus_1 *Pinus_2 \***Plestiodon
 \***Plestiodon_1 *Plestiodon_2 \***Sceloporus_orcutti
 \***Sceloporus_orcutti_1 *Sceloporus_orcutti_2 \***Sceloporus_zosteromus
 \***Sceloporus_zosteromus_1 *Sceloporus_zosteromus_2 \***Sorex_ornatus
 \***Sorex_ornatus_1 \***Spilogale_gracilis \***Spilogale_gracilis_1
 \***Stenocereus_gummosus \***Stenocereus_gummosus_1
 \***Urosaurus_nigricaudus \***Urosaurus_nigricaudus_1
 \*****Urosaurus_nigricaudus_2 \***Urosaurus_nigricaudus_3
 *Urosaurus_nigricaudus_4 \***Uta_stansburiana \*****Uta_stansburiana_1
 \*****Uta_stansburiana_2 *Each subfolder includes the following files
 (replacing "Genus", "species" and "clade"
 accordingly): Genus_species_clade.asc: Suitability raster generated from
 the niche model Genus_species_clade_bin.asc: Binarized suitability using a
 10% omission threshold Genus_species_clade_LGM_CCSM.asc: Suitability
 projected to LGM climate with the CCSM GCM
 Genus_species_clade_LGM_MIROC.asc: Suitability projected to LGM climate
 with the MIROC GCM