LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Back to previous search Search history
Advanced search

Your last searches

  1. AU="Nunes, Pedro M. Sales"
  2. AU="Sánchez-Montero, María Teresa"
  3. AU="Jiexin Zhang"
  4. AU=Mladinic M
  5. AU="Canfarotta, Michael W"
  6. AU="Merani, Shaheed"
  7. AU="Tarver, James E"
  8. AU=Wirestam Lina
  9. AU="Karen Martz"
  10. AU="Yadav, Kanhaiya L."
  11. AU="Girmay, Tigisty"
  12. AU="Hain, Sofia"
  13. AU="de Kler, R C F"
  14. AU="Veness, R."

Search results

Result 1 - 10 of total 25

Search options

  1. Article ; Online: Comparative anatomy and evolution of the atlantoaxial complex in the fossorial lineage Amphisbaenia (Squamata: Lacertoidea).

    Araújo Salvino, Clara / Hernandéz-Morales, Cristian / Daza, Juan Diego / Nunes, Pedro M Sales

    Anatomical record (Hoboken, N.J. : 2007)

    2024  

    Abstract: The atlas and axis are the first two vertebrae from the cervical series; these two vertebrae are responsible for neck flexion, extension, and rotation movements, while providing insertion points for muscles and tendons. Amphisbaenia is a group of ... ...

    Abstract The atlas and axis are the first two vertebrae from the cervical series; these two vertebrae are responsible for neck flexion, extension, and rotation movements, while providing insertion points for muscles and tendons. Amphisbaenia is a group of fossorial squamates known for having four distinctive head shapes, which are related to different excavation methods. However, little is known about the relationship between these different digging patterns and the anatomy and evolution of the atlantoaxial complex. In this study, we used computed microtomography data to describe in detail of the atlantoaxial complex for 15 species, belonging to all six current families of Amphisbaenia. Furthermore, we evaluate evolutionary scenarios of selected characters related to the atlantoaxial complex in the most recent phylogeny for Amphisbaenia, using the criteria of parsimony and maximum likelihood. Our results indicate that the evolutionary pattern of the atlantoaxial complex presents a diversification in its morphology that is not always correlated with the shape of the head. This analysis reinforces the hypothesis of remarkable morphological convergences in the evolutionary history of Amphisbaenia. Additionally, some of the characters studied may represent independent evolution through convergence in some cases (e.g., horizontal axis of the neural column) and parallelism in others (e.g., present or absent from the transverse process).
    Language English
    Publishing date 2024-04-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2269667-2
    ISSN 1932-8494 ; 1932-8486
    ISSN (online) 1932-8494
    ISSN 1932-8486
    DOI 10.1002/ar.25448
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Ub I Zs.65: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Article ; Online: Conservatism as an unjustifiable justification for the recognition of paraphyletic taxa: the case of Alopoglossidae.

    Peloso, Pedro / Sturaro, Marcelo Jos / Nunes, Pedro M Sales

    Zootaxa

    2021  Volume 5016, Issue 1, Page(s) 147–150

    MeSH term(s) Animals ; Phylogeny ; Politics
    Language English
    Publishing date 2021-08-04
    Publishing country New Zealand
    Document type Letter
    ISSN 1175-5334
    ISSN (online) 1175-5334
    DOI 10.11646/zootaxa.5016.1.9
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article: Systematics of

    Parra, Vanessa / Nunes, Pedro M Sales / Torres-Carvajal, Omar

    ZooKeys

    2020  Volume 954, Page(s) 109–156

    Abstract: Four new species ... ...

    Abstract Four new species of
    Language English
    Publishing date 2020-07-29
    Publishing country Bulgaria
    Document type Journal Article
    ZDB-ID 2445640-8
    ISSN 1313-2970 ; 1313-2989
    ISSN (online) 1313-2970
    ISSN 1313-2989
    DOI 10.3897/zookeys.954.50667
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  4. Article: An elusive new species of gymnophthalmid lizard (Cercosaurinae, Selvasaura) from the Andes of northern Peru

    Echevarría, Lourdes Y. / Venegas, Pablo J. / García-Ayachi, Luis A. / Nunes, Pedro M. Sales

    Evolutionary Systematics. 2021 July 27, v. 5, no. 2

    2021  

    Abstract: We describe a new species of Selvasaura from the montane forests of the eastern slopes of the Andes in northern Peru, based on external and hemipenial morphological characters and previous phylogenetic analyses. The new species can be differentiated from ...

    Abstract We describe a new species of Selvasaura from the montane forests of the eastern slopes of the Andes in northern Peru, based on external and hemipenial morphological characters and previous phylogenetic analyses. The new species can be differentiated from the other two Selvasaura species in having keeled dorsal scales usually flanked by longitudinal striations, in adults and juveniles; adult males with a yellow vertebral stripe bordered by broad dark brown stripes on each side and a unilobed hemipenis surrounded by the branches of the sulcus spermaticus. The description of the new species contributes information about new states of diagnostic characters of Selvasaura and natural history.
    Keywords adults ; lizards ; natural history ; new species ; phylogeny ; Andes region ; Peru
    Language English
    Dates of publication 2021-0727
    Size p. 177-187.
    Publishing place Pensoft Publishers
    Document type Article
    ISSN 2535-0730
    DOI 10.3897/evolsyst.5.68520
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article: Systematics of Pholidobolus lizards (Squamata, Gymnophthalmidae) from southern Ecuador, with descriptions of four new species

    Parra, Vanessa / Nunes, Pedro M. Sales / Torres-Carvajal, Omar

    ZooKeys. 2020 July 29, v. 954

    2020  

    Abstract: Four new species of Pholidobolus lizards are described from poorly explored areas in the Andes of southern Ecuador based on morphological and genetic evidence. Among other morphological characters, Pholidobolus samek sp. nov. and P. condor sp. nov. ... ...

    Abstract Four new species of Pholidobolus lizards are described from poorly explored areas in the Andes of southern Ecuador based on morphological and genetic evidence. Among other morphological characters, Pholidobolus samek sp. nov. and P. condor sp. nov. differ from their congeners in having green dorsolateral stripes on head. Males of P. condor sp. nov. differ from those of P. samek sp. nov. in having reddish flanks and venter. P. dolichoderes sp. nov. is distinguished by having a long neck, with more scales between orbit and tympanum, whereas P. fascinatus sp. nov. is distinguished by lacking enlarged medial scales on collar and a conspicuous vertebral stripe. In addition, the phylogenetic position of the new species is inferred using DNA sequences of mitochondrial and nuclear genes. The phylogeny supports strongly monophyly of each of the new species and renders P. macbrydei paraphyletic and split into six subclades. Available data suggest that the new species have restricted distribution ranges (< 100 km² each), and it is proposed that their classification be as Data Deficient or Critically Endangered species. The results reveal unexpected levels of diversity within Pholidobolus in the Andes of southern Ecuador and highlight the importance of improving scientific collections and conservation efforts in this area.
    Keywords DNA ; Squamata ; endangered species ; head ; middle ear ; mitochondria ; monophyly ; neck ; new species ; paraphyly ; Andes region ; Ecuador
    Language English
    Dates of publication 2020-0729
    Size p. 109-156.
    Publishing place Pensoft Publishers
    Document type Article
    Note NAL-light
    ZDB-ID 2445640-8
    ISSN 1313-2970 ; 1313-2989
    ISSN (online) 1313-2970
    ISSN 1313-2989
    DOI 10.3897/zookeys.954.50667
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  6. Article: Taxonomy, allometry, sexual dimorphism, and conservation of the trans-Andean watersnake Helicops danieli Amaral, 1937 (Serpentes: Dipsadidae: Hydropsini)

    Citeli, Nathalie / Klaczko, Julia / De-Lima, Anderson Kennedy Soares / de-Carvalho, Mariana / Nunes, Pedro M. Sales / Passos, Paulo / Brandão, Reuber Albuquerque

    Canadian journal of zoology. 2022, v. 100, no. 3

    2022  

    Abstract: The extensive lack of knowledge on the morphological aspects of South American watersnakes includes a poor understanding of phenotypic parameters, intraspecific variation, and conservation of the trans-Andean Helicops species, Daniel’s Keelback (Helicops ...

    Abstract The extensive lack of knowledge on the morphological aspects of South American watersnakes includes a poor understanding of phenotypic parameters, intraspecific variation, and conservation of the trans-Andean Helicops species, Daniel’s Keelback (Helicops danieli Amaral, 1937). For the first time, we provide a multidisciplinary view using key features (e.g., morphology and niche modeling) to improve the taxonomic recognition of this species, as well as describing ontogenetic color changes, allometry, sexual dimorphism, and the conservation status of this poorly studied snake. First, we emended the morphological diagnosis of H. danieli with 23 characters and detected that juvenile tail length is positively related to allometric growth, and that juveniles differ from adults through the presence of the white nuchal collar. Females are larger than males for snout–vent length, whereas males showed proportionally longer tails and smaller head length growth. Suitable areas for H. danieli are restricted to the trans-Andean regions from the Magdalena drainage to the Caribbean coast, which also showed high values of anthropic impacts. Our multidisciplinary approach provided new insights into this South American watersnake’s morphology, intraspecific variation, and distribution.
    Keywords Dipsadidae ; allometry ; coasts ; color ; conservation status ; drainage ; head ; intraspecific variation ; juveniles ; ontogeny ; phenotype ; sexual dimorphism ; snakes ; tail ; taxonomy ; zoology ; Caribbean
    Language English
    Size p. 184-196.
    Publishing place Canadian Science Publishing
    Document type Article
    ZDB-ID 241716-9
    ISSN 1480-3283 ; 0008-4301
    ISSN (online) 1480-3283
    ISSN 0008-4301
    DOI 10.1139/cjz-2021-0073
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 71/720: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article ; Online: A species-level total evidence phylogeny of the microteiid lizard family Alopoglossidae (Squamata: Gymnophthalmoidea).

    Hernández Morales, Cristian / Sturaro, Marcelo J / Nunes, Pedro M Sales / Lotzkat, Sebastian / Peloso, Pedro L V

    Cladistics : the international journal of the Willi Hennig Society

    2020  Volume 36, Issue 3, Page(s) 301–321

    Abstract: Alopoglossidae is a family of Neotropical lizards composed of 23 species allocated in two genera (Alopoglossus and Ptychoglossus). There is a lack of knowledge about the phylogenetic relationships and systematics of this family. Published phylogenies ... ...

    Abstract Alopoglossidae is a family of Neotropical lizards composed of 23 species allocated in two genera (Alopoglossus and Ptychoglossus). There is a lack of knowledge about the phylogenetic relationships and systematics of this family. Published phylogenies that include alopoglossid species have very low taxon coverage within the family, and are usually based on limited character sampling. Considering these shortcomings, we infer the phylogenetic relationships of Alopoglossidae-including all but one species in the family-based on the combined analyses of DNA sequences and morphological characters. We use four loci (the mitochondrial 12S, 16S and ND4; the nuclear C-mos) and a matrix of 143 phenotypic characters from scutellation, tongue morphology, hemipenis morphology, and osteology. The dataset is analyzed with Maximum Parsimony, with four alternative weighting schemes: three under Extended Implied Weighting, and one with equal weighting. The respective resulting topologies are compared in a sensitivity analysis framework. Our analyses support the paraphyly of Ptychoglossus, with Alopoglossus nested within it. We provide an updated classification for the family, where Ptychoglossus Boulenger, 1890 is considered a junior synonym of Alopoglossus Boulenger, 1885.
    MeSH term(s) Animals ; Female ; Genotype ; Lizards/classification ; Lizards/genetics ; Male ; Phylogeny ; Sequence Analysis, DNA
    Language English
    Publishing date 2020-01-13
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1462608-1
    ISSN 1096-0031 ; 0748-3007
    ISSN (online) 1096-0031
    ISSN 0748-3007
    DOI 10.1111/cla.12407
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  8. Article ; Online: A new species of Oreosaurus (Squamata: Gymnophthalmidae) from the Turimiquire Massif, northeastern Venezuela.

    Rivas, Gilson A / Nunes, Pedro M Sales / Baran, Agnieszka / Jowers, Michael J / Smith, Eric N / Hernndez-Morales, Cristian / Schargel, Walter E

    Zootaxa

    2021  Volume 5023, Issue 4, Page(s) 571–584

    Abstract: We describe a new species of gymnophthalmid lizard, Oreosaurus bisbali sp. nov., from the Turimiquire Massif in northeastern Venezuela. It is one of three reptile species known to be endemic to the region and the fifth species of Oreosaurus from ... ...

    Abstract We describe a new species of gymnophthalmid lizard, Oreosaurus bisbali sp. nov., from the Turimiquire Massif in northeastern Venezuela. It is one of three reptile species known to be endemic to the region and the fifth species of Oreosaurus from Venezuela. It can be distinguished from all congeners by a combination of rectangular dorsal scales at midbody, having two scales separating femoral pores medially, and lacking a nasoloreal suture. The new species is likely to be restricted in distribution to the highlands of the Turimiquire Massif, which have been significantly degraded by agriculture.
    MeSH term(s) Animal Distribution ; Animals ; Lizards ; Venezuela
    Language English
    Publishing date 2021-08-20
    Publishing country New Zealand
    Document type Journal Article
    ISSN 1175-5334
    ISSN (online) 1175-5334
    DOI 10.11646/zootaxa.5023.4.6
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  9. Article ; Online: Long known, brand new, and possibly threatened: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes; Xenodontinae) from the Tocantins-Araguaia River Basin, Brazil.

    Moraes-DA-Silva, Antonio / Amaro, Renata Cecília / Nunes, Pedro M Sales / Rodrigues, Miguel Trefaut / Curcio, Felipe Franco

    Zootaxa

    2021  Volume 4903, Issue 2, Page(s) zootaxa.4903.2.3

    Abstract: We describe a new species of watersnake of the genus Helicops from the Tocantins-Araguaia River Basin based on characters of coloration and hemipenial morphology, also corroborated by a molecular phylogenetic analysis including 18 terminals of 10 ... ...

    Abstract We describe a new species of watersnake of the genus Helicops from the Tocantins-Araguaia River Basin based on characters of coloration and hemipenial morphology, also corroborated by a molecular phylogenetic analysis including 18 terminals of 10 additional congeners. The new species superficially resembles the spotted-patterned He. leopardinus, but differs from it in exhibiting dorsal spots fused into irregular bands, and a unique hemipenial structure with two pairs of distinctly enlarged basal spines. In addition, despite the superficial resemblance of color pattern, our genetic evidence indicates that the new species does not belong to the He. leopardinus radiation, representing the sister group of a component including terminals of this species, He. modestus, and He. infrataeniatus. Finally, we discuss the apparent restriction of the new species to the Tocantins-Araguaia Basin with focus on vicariant processes that may have promoted its differentiation, as well as on the conservation challenges in an area severely affected by anthropic impacts associated with the rapid expansion of hydroelectric and agricultural sectors in the Brazilian Cerrado.
    MeSH term(s) Animals ; Brazil ; Colubridae ; Male ; Phylogeny ; Rivers
    Language English
    Publishing date 2021-01-07
    Publishing country New Zealand
    Document type Journal Article
    ISSN 1175-5334
    ISSN (online) 1175-5334
    DOI 10.11646/zootaxa.4903.2.3
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  10. Article ; Online: Hemipenial morphology of nine South American species of Mabuya (Scincidae: Lygosominae) with comments on the morphology of the family.

    Sánchez-Martínez, Paola María / Ramírez-Pinilla, Martha Patricia / Meneses-Pelayo, Elson / Nunes, Pedro M Sales

    Anatomical record (Hoboken, N.J. : 2007)

    2019  Volume 303, Issue 11, Page(s) 2917–2930

    Abstract: Species of the genus Mabuya are barely recognizable because of their highly conservative external morphology, resulting in unstable systematic and taxonomic status. Considering that hemipenial morphology has been extensively used as a source of ... ...

    Abstract Species of the genus Mabuya are barely recognizable because of their highly conservative external morphology, resulting in unstable systematic and taxonomic status. Considering that hemipenial morphology has been extensively used as a source of systematic information for several groups of Squamata, we described the hemipenial morphology of nine species of Mabuya, searching for diagnostic features useful to taxonomic and systematic studies. To have comparative parameters within the family, we also presented the description of the hemipenes of two other Scincidae species (i.e., Trachylepis atlantica and Tiliqua rugosa). This information, together with the available literature, was analyzed in a comparative framework, allowing us to define some variation for the genus and family. The hemipenial morphology of the species of Mabuya studied is very conservative; features that show subtle variation were the shape of the protuberances present on the asulcate face of the hemipenial body and the presence and type of a lateral fold, on the body. Also, within the family, some variation was found in the shape and length of lobes, length of branches of the sulcus spermaticus, and in the kind of folds and protuberances in both faces of the lobes and hemipenial body. Although these features were not tested in a systematic context, this information suggested variations in hemipenial morphology that could contribute to taxonomic diagnostics and phylogenetic characters. The importance of obtaining proper preparations for gathering accurate information is emphasized, and the use of fresh-killed specimens that shows fewer difficulties for the procedures of preparation is highly recommended.
    MeSH term(s) Animals ; Genitalia, Male/anatomy & histology ; Lizards/anatomy & histology ; Male ; Phylogeny
    Language English
    Publishing date 2019-12-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2269667-2
    ISSN 1932-8494 ; 1932-8486
    ISSN (online) 1932-8494
    ISSN 1932-8486
    DOI 10.1002/ar.24329
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Ub I Zs.65: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top