Fig 1.
Distribution ranges of Teratoscincus taxa.
Colours correspond to species in Figs 3 and 4. Localities of specimens sampled in this study are detailed in S1 Table. Teratoscincus sistanensis was not included in this study. Credits: Natural Earth contributors, SRTM.
Fig 2.
Localities of T. keyserlingii in the UAE used in this study.
Images presenting the UAE coastline in the years 1984 and 2020 indicating the massive development in recent decades, which destroyed and fragmented the natural habitat of T. keyserlingii. Localities of specimens used in this study are indicated in red, with numbers corresponding to localities detailed in S1 Table. Localities 6, 7, 9, 12 are extinct due to urban development. Left map credits: OpenStreetMap contributors, SRTM. Middle and right images credits: Satellite images of environmental change, Earth Resources Observatory and Science (EROS) Center, USGS.
Fig 3.
Maximum likelihood phylogenetic trees of Teratoscincus.
(left) Phylogenetic tree using the concatenated mtDNA–nucDNA data (COI, ND2, MC1R, RAG1). (right) Phylogenetic tree using the COI data. Support values indicated near the nodes (ML bootstrap/Bayesian posterior probabilities). Sample codes correlate to specimens in S1 Table. Specimen depicted is T. keyserlingii from the UAE. Photo credit: Salvador Carranza.
Fig 4.
Time-calibrated species tree of Teratoscincus.
Mean age estimates are provided above the nodes with horizontal bars representing the 95% highest posterior densities. Black circles represent nodes with posterior probability values ≥0.95. Specimen depicted is T. keyserlingii from the UAE. Photo credit: Salvador Carranza.
Fig 5.
Ancestral area reconstructions of Teratoscincus.
A Bayesian phylogenetic tree estimated using the concatenated mtDNA–nucDNA data with BSSVS. A pie chart describing the probability of each inferred area is presented near the major nodes. Branch colours indicate inferred ancestral range and the mean age estimates are provided above the nodes with horizontal bars representing the 95% highest posterior densities. Black circles represent nodes with posterior probability values ≥0.95.
Fig 6.
Inbreeding frequency distribution.
Calculated for the 26 individuals of T. keyserlingii from the UAE.
Fig 7.
Distribution of T. keyserlingii in the UAE within the current terrestrial protected areas.
Terrestrial protected areas are indicated in green (see details in Burriel-Carranza et al., 2019) [28]. Circles indicate T. keyserlingii specimens used in this study (red) and past known localities (blank). Credits: OpenStreetMap contributors, SRTM. Shapefile of the terrestrial protected areas of the UAE is provided in S1 Appendix.