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349 results for “tortoises”
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.
Fig. 23 in A New Genus of Mesomphaliine Tortoise Beetle (Coleoptera: Chrysomelidae), with Description of a New Flightless Species from Haiti
Fig. 23. Rugose surface on the anteromedial region of the ventral surface of the pronotum of Convexocoleus rileyi.
Fig. 13 in A New Genus of Mesomphaliine Tortoise Beetle (Coleoptera: Chrysomelidae), with Description of a New Flightless Species from Haiti
Fig. 13. Consensus tree of 24 most parsimonious trees (Length = 150, CI = 0.42, RI = 0.69). Black circles indicate nonhomoplasious characters; white circles indicate homoplasies; character numbers are above black or white circles, character states are below the circles; taxa in boxes represent the flightless lineages. Only unambiguous characters are mapped.
Figs. 1–12 in A New Genus of Mesomphaliine Tortoise Beetle (Coleoptera: Chrysomelidae), with Description of a New Flightless Species from Haiti
Figs. 1–12. Convexocoleus rileyi, male: 1) Dorsal view; 2) Lateral view; 3) Ventral view. C. rileyi, female: 4) Dorsal view; 5) Lateral view; 6) Ventral view. Elytrogona quatuordecimmaculata, sex undetermined: 7) Dorsal view; 8) Lateral view; 9) Ventral view. Botanochara impressa, sex undetermined: 10) Dorsal view; 11) Lateral view; 12) Ventral view.
Figs. 14–22 in A New Genus of Mesomphaliine Tortoise Beetle (Coleoptera: Chrysomelidae), with Description of a New Flightless Species from Haiti
Figs. 14–22. Antennae: 14) Convexocoleus rileyi; 15) Elytrogona quatuordecimmaculata; 16) Botanochara impressa. Pretarsal claws, white outline shows the shape of the basal tooth on the pretarsal claw; arrow indicates the connected bases: 17) C. rileyi; 18) E. quatuordecimmaculata; 19) B. impressa. Anterior portion of prosternum, lateral view: 20) C. rileyi; 21) E. quatuordecimmaculata; 22) B. impressa.
Data from: A new lineage of Galapagos giant tortoises identified from museum samples
<p>The Galapagos Archipelago is recognized as a natural laboratory for studying evolutionary processes. San Cristóbal was one of the first islands colonized by tortoises, which radiated from there across the archipelago to inhabit 10 islands. Here, we sequenced the mitochondrial control region from six historical giant tortoises from San Cristóbal (five long deceased individuals found in a cave and one found alive during an expedition in 1906) and discovered that the five from the cave are from a clade that is distinct among known Galapagos giant tortoises but closely related to the species from Española and Pinta Islands. The haplotype individual collected alive in 1906 is in the same clade as the haplotype in the contemporary population. To search for traces of a second lineage in the contemporary population on San Cristóbal, we closely examined the population by sequencing the mitochondrial control region for 129 individuals and genotyping 70 of these for both 21 microsatellite loci and >12 000 genome-wide single nucleotide polymorphisms [SNPs]. The dataset archived here consists of a VCF file of the SNPs genotyped through ddRAD and a structure file of the 21 microsatellites with the genotypes for the same 64 individuals in each. Only a single mitochondrial haplotype was found, with no evidence to suggest substructure based on the nuclear markers.</p>
Desert tortoise scat microsatellite results
<p>Sampling fecal droppings (scat) to genetically identify individual animals is an established method for monitoring mammal populations and could be highly useful for monitoring reptile populations. Whereas existing protocols for obtaining DNA from reptile scat focus on analyses of whole, fresh scat deposited during animal handling, the collection of scat naturally deposited by reptiles in situ, as required for non-invasive population monitoring, requires protocols to extract highly degraded DNA. Using surface swabs from such scats can reduce logistical challenges, ecological impacts, and zoonotic risks. We report on three related but independently designed studies of DNA analyses from scat swabs of herbivorous reptiles under natural desert conditions: two free-ranging desert tortoise species (Agassiz's desert tortoise, Gopherus agassizii, California, US, and Morafka's desert tortoise, G. morafkai, Arizona, US) and the common chuckwalla (Sauromalus atar) (Arizona, US, and Sonora, MX). We analyzed samples from both tortoise species with the same set of 16 microsatellites and chuckwalla samples with four mtDNA markers; studies also varied in swab preservation medium and DNA extraction method. Microsatellite amplification success, defined as ≥9 loci with amplification varied by species: 15% of samples for Agassiz's desert tortoise and 42% Morafka's desert tortoise. For chuckwallas, we successfully amplified and sequenced 50% of samples. Fragments up to 400 bp for tortoises and 980 bp for chuckwallas were successfully recovered from scat swab samples. This study demonstrates that genotypes can successfully be obtained from swabs of herbivorous reptile scat collected in the field under natural environmental conditions and emphasizes that repeat amplifications are necessary for estimating population genetic parameters.</p>
Supplementary material 1 from: D'Cruze N, Singh B, Morrison T, Schmidt-Burbach J, Macdonald DW, Mookerjee A (2015) A star attraction: The illegal trade in Indian Star Tortoises. Nature Conservation 13: 1-19. https://doi.org/10.3897/natureconservation.13.5625
Table S1. Table of the Indian Star Tortoise trade transactions (1975–2013): Explanation note: Table to show the Indian Star Tortoise trade transactions (1975-2013) as recorded by the Convention on International Trade in Endangered Species of Wild Fauna and Flora World Conservation Monitoring Centre (CITES WCMC) database (http://trade.cites.org/).
FIGURE 4 in A new species of extinct Late Quaternary giant tortoise from Hispaniola
FIGURE 4. Plastron and carapace fragments of Chelonoidis marcanoi sp. nov. from Pedernales Province, Dominican Republic: a, d, epiplastron fragment (MNHNSD FOS 23.1056), external and internal views; b, e, epiplastron fragment (MNHNSD FOS 23.1060), external and internal views; c, h, costal fragment (NHMUK PV R 36955), internal and external views; f–g, peripheral fragment (MNHNSD FOS 23.1061), external and internal views; i–j, fragment from border of carapacial rim, including two peripherals and part of costal plate (MNHNSD FOS 23.1062), external and internal views. Scale bar=2 cm.
FIGURE 1 in A new species of extinct Late Quaternary giant tortoise from Hispaniola
FIGURE 1. Map of Hispaniola, showing geotectonic boundaries and locations of cave sites from which giant tortoise fossils have been reported. Capital cities indicated with filled stars. Key: 1, Cueva del Papayo; 2, Cueva No. 12; 3, Cueva de las Tortugas; 4, Cueva del Muerto; 5, Cueva de las Caritas; 6, Bayaguana.
FIGURE 3 in A new species of extinct Late Quaternary giant tortoise from Hispaniola
FIGURE 3. Femora of Chelonoidis marcanoi sp. nov. from Pedernales Province, Dominican Republic: a–c, MNHNSD FOS 23.1063, left femur (young individual), lateral, anterior and medial views; d–e, MNHNSD FOS 23.1055, right distal femur, anterior and lateral views. Scale bar=2 cm.
FIGURE 2 in A new species of extinct Late Quaternary giant tortoise from Hispaniola
FIGURE 2. Humeri of Chelonoidis marcanoi sp. nov. from Pedernales Province, Dominican Republic: a–b, NHMUK PV R 36954 (holotype), right humerus, anterior and medial views; c–d, MNHNSD FOS 23.1064, left proximal humerus, medial and lateral views; e–f, MNHNSD FOS 23.1058, right humerus, anterior and lateral views; g–h, MNHNSD FOS 23.1054, left humerus, anterior and medial views; i, MNHNSD FOS 23.1059, right distal humerus, anterior view; j–k, MNHNSD FOS 23.1057, left humerus (young individual), anterior and medial views. Scale bar=2 cm.
FIGURE 6 in A new species of extinct Late Quaternary giant tortoise from Hispaniola
FIGURE 6. Schematic drawing of dermal bones of chelonian carapace (left) and plastron (right), indicating approximate estimated position of described shell fragments of Chelonois marcanoi sp. nov. from Pedernales Province, Dominican Republic. Original position on either the left or right side of the carapace is uncertain for the two specimens indicated with asterisks.
Supplementary material 1 from: Ridenbaugh RD, Barbeau E, Sharanowski BJ (2018) Description of four new species of Eadya (Hymenoptera, Braconidae), parasitoids of the Eucalyptus Tortoise Beetle (Paropsis charybdis) and other Eucalyptus defoliating leaf beetles. Journal of Hymenoptera Research 64: 141-175. https://doi.org/10.3897/jhr.64.24282
Table S1 : Explanation note: List of all materials examined along with collecting localities, its type designation and location of deposition, and associated DNA voucher number or unique identifier. Eadya annleckieae Ridenbaugh, sp. n. is referred to as Eadya sp.1, Eadya spitzer Ridenbaugh, sp. n. is referred to as Eadya sp.2, and Eadya daenerys Ridenbaugh, sp. n. is referred to as Eadya sp.3.
Fig. 4 in Intraspecific variation in digit reduction in Testudo: the case of the Hermann's tortoise
Fig. 4 Visible proportions of manus with five digits between genetic lineages (N = 3338 forelimbs belonging to 1669 individuals, 380 in mixed population, 1274 in Minorca 1, and 1684 in Minorca 2)
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
Fig. 4 in Turtle and tortoise mitogenomes under contrasting positive selection pressure
Fig. 4 Graphical representation denoting the distribution of PSS in Testudinoidean lineages across the OXPHOS system. All the 12 mitochondrial PCGs encoding the OXPHOS system were projected onto homologous protein structures and are represented in different colours. Grey structures represent the entire OXPHOS complex and no solved crystallized structures were available for the ATP8 gene. The NAD3 gene (lemon green) represents sites under positive selection across all Testudinoidean lineages as detected by random sites analysis. The rest of the genes, NAD1 (hot pink), NAD2 (yellow),
Fig. 2 in Turtle and tortoise mitogenomes under contrasting positive selection pressure
Fig. 2 Gene-wise estimates of dN/dS for the concatenated data set of 12 PCGs using M8a-M8 nested random site models. The y-axis denotes BEB posterior mean estimate of dN/dS for each site, with
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