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19 results for “Chelonoidis”
Fig 5 in Description of a New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island
Fig 5. Frequency distribution of genetic distances between different Galapagos giant tortoise species (A: microsatellite DNA, B: mitochondrial DNA). For each histogram, a dark gray column indicates where the observed genetic distance between the Cerro Fatal and Reserva tortoises falls. Left: Microsatellite genetic distances calculated from purebred individuals in the reference measured using FST (top) or RST (below). Right: DNA sequence genetic distances based on mtDNA haplotypes from purebred individuals in the reference database, measured using uncorrected p-distances (top), or maximum likelihood (ML)-corrected distances (below).
Fig 2 in Description of a New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island
Fig 2. (A) Bayesian Inference (BI) tree reconstructed from the dataset including all unique mtDNA control region haplotypes previously sampled from extant and extinct species as well as the three museum specimens of giant Galapagos tortoises analyzed in this study. Numbers on branches indicate posterior probabilities. Only the nodal support values for the major lineages are presented. Red and green colors identify museum samples analyzed in the present and previous studies, respectively. (B) Haplotype network showing matrilineal diversity recovered from 70 sequences of C. porteri from Reserva, 51 sequences of the lineage from Cerro Fatal, and 2 sequences of C. chathamensis from San Cristóbal Island. Twenty-five inferred mutations separate the haplogroups of Chelonoidis sp. nov. from Cerro Fatal from the ones from C. porteri from Reserva.
Fig 1 in Description of a New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island
Fig 1. Geographic distribution of the two known lineages of giant tortoises on Santa Cruz Island: Chelonoidis porteri (Reserva) and Chelonoidis sp. nov. (Cerro Fatal) (indicated in dark gray). Light gray area connecting the distribution areas of the two species indicates agricultural land. Modified from Russello et al. [11].
Fig 6. A-E in Description of a New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island
Fig 6. A-E. The skull of the museum specimen UWZS 32700, holotype for Chelonoidis sp. nov. from Cerro Fatal in Santa Cruz (A: dorsal, B: ventral, C: occipital, D: frontal and E: lateral view).
Fig 4 in Description of a New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island
Fig 4. Genetic membership from Bayesian assignment tests in STRUCTURE for the three museum individuals, relative to the genotypic database representing the Cerro Fatal (black) and Reserva (white) giant tortoise populations. Each bar represents an individual and the proportional color of each bar represents the percentage membership (i.e., Q-value) in each of the reference clusters. Museum individuals include the C. porteri holotype (#) and the two Cerro Fatal specimens tested as putative candidates for the Chelonoidis sp. nov. holotype (*).
Fig 3 in Description of a New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island
Fig 3. Polymorphic sites between Chelonoidis sp. nov. (Cerro Fatal—Santa Cruz), C. chathamensis (San Cristóbal), and C. porteri (Reserva— Santa Cruz). The position of diagnostic locations is relative to the Genbank record AY956622 for porCF1 from Cerro Fatal. - = gap position and K = G/T polymorphism.
FIGURE 2 in Phylogenetic and divergence time analysis of the Chelonoidis chilensis complex (Testudines: Testudinidae)
FIGURE 2. Phylogenetic trees of the genus Chelonoidis, including the C. chilensis complex, obtained by three different criteria. A: Maximum Parsimony, B: Maximum Likelihood, C: Bayesian Inference. The numbers above the nodes indicate bootstrap support scores (A and B) and posterior probability scores (C). Clade colors refer to the corresponding eco–regions (see Fig. 1).
FIGURE 1 in Phylogenetic and divergence time analysis of the Chelonoidis chilensis complex (Testudines: Testudinidae)
FIGURE 1. Map of Argentina showing the localities from which the tissue samples were taken. Different colors indicate different eco–regions. Legends near sample localities are in accordance with the haplotypes shown in the phylogenetic trees (Fig. 2).
FIGURE 3 in Phylogenetic and divergence time analysis of the Chelonoidis chilensis complex (Testudines: Testudinidae)
FIGURE 3. Ultrametric trees obtained by the two-step method of McCartney & Barreto (2010), showing the divergence times within the family Testudinidae (A) and the divergence times within the C. chilensis complex (B). Numbers above the nodes indicate median of node ages, red numbers below the nodes indicate the clades belonging to the genus Chelonoidis (see table 5).
Fig. 1 in Red- and yellow-footed tortoises, Chelonoidis carbonaria and C. denticulata (Reptilia: Testudines: Testudinidae), in South American savannahs and forests: do their phylogeographies reflect distinct habitats?
Fig. 1 Approximate ranges of Chelonoidis carbonaria and C. denticulata (modified from Iverson 1992) and geographic distribution of haplotypes. Locality numbers refer to Appendix 1. Question marks indicate that the southern part of the range of C. carbonaria might be connected with the northern part. Symbols for C. carbonaria correspond to haplotype clades (Fig. 2); upper-case letters indicate geographic origin within the range (N, north; NE, northeast; etc.)
Fig. 5 in Red- and yellow-footed tortoises, Chelonoidis carbonaria and C. denticulata (Reptilia: Testudines: Testudinidae), in South American savannahs and forests: do their phylogeographies reflect distinct habitats?
Fig. 5 Chelonoidis carbonaria; left: Brazil (Museum of Zoology Dresden MTD D 3620); right: Filadelfia, Chaco, Paraguay (Museum of Zoology Dresden MTD D 43485). Scale bars: 10 cm. Note distinct shell shapes and colorations
Figure 2 in Density, occupancy and detectability of tortoise species (Chelonoidis spp.) in the Atlantic Forest: implications for conservation and management
Figure 2. Relationship between the probability of detection of Chelonoidis denticulatus (A) and Chelonoidis carbonarius (B) with the accumulated rainfall of the day before sampling (previous rainfall) in the Vale Natural Reserve, Brazil.
Figure 1 in Density, occupancy and detectability of tortoise species (Chelonoidis spp.) in the Atlantic Forest: implications for conservation and management
Figure 1. Location of the Vale Natural Reserve, municipality of Linhares, Espírito Santo, south-eastern Brazil, showing the location of the linear transects and the types of vegetation present in the Reserve.
Figure 3 in Density, occupancy and detectability of tortoise species (Chelonoidis spp.) in the Atlantic Forest: implications for conservation and management
Figure 3. Relationship between the probability of occupancy of Chelonoidis denticulatus (A) and Chelonoidis carbonarius (B) with the distance from the water resource, and relationship between the probability of occupancy of Chelonoidis denticulatus and the percentage of forest cover (C) in the Vale Natural Reserve, Brazil.
Data from: Tropical ancient DNA reveals relationships of the extinct Bahamian giant tortoise Chelonoidis alburyorum
Open the record for dataset details and reuse information.
doi:10.1371/journal.pone.0138779.g006 in Description of a New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island
doi:10.1371/journal.pone.0138779.g006
doi:10.1371/journal.pone.0138779.g004 in Description of a New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island
doi:10.1371/journal.pone.0138779.g004
doi:10.1371/journal.pone.0138779.g005 in Description of a New Galapagos Giant Tortoise Species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island
doi:10.1371/journal.pone.0138779.g005
Fig. 2 in Red- and yellow-footed tortoises, Chelonoidis carbonaria and C. denticulata (Reptilia: Testudines: Testudinidae), in South American savannahs and forests: do their phylogeographies reflect distinct habitats?
Fig. 2 Maximum Likelihood tree for haplotypes of Chelonoidis carbonaria and C. denticulata, including sequences of C. chilensis and C. nigra. Support values above branches are ML bootstrap values; below branches, Bayesian posterior probabilities and MP bootstrap
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