Results 31 to 40 of about 1,293 (171)

A bothremydid turtle (Pleurodira) from the middle Cenomanian of Vale de Figueira (Belas, Portugal). [PDF]

open access: yesAnat Rec (Hoboken)
Abstract An unpublished turtle shell from the middle Cenomanian of Vale de Figueira, near Belas (Lisbon District, Portugal), is recognized by us as collected in 1880 under the direction of Carlos Ribeiro. No turtle remains from that region had so far been figured, described or discussed from a systematic point of view.
Antunes MT, Pérez-García A.
europepmc   +2 more sources

Management and relocation of nests of Podocnemis expansa (Schweigger, 1812) (Testudines, Podocnemididae) on the Crixás-Açu river, Brazil [PDF]

open access: yesBrazilian Journal of Biology
Podocnemis expansa nests in the sandbanks of the Crixás-Açu River in central Brazil during the dry season. With the return of the rainy season, the river banks are once again inundated, flooding nests and eggs and drowning hatchlings.
AS. Gomes, PD. Ferreira Júnior
doaj   +2 more sources

Radiographic anatomy aspects and gastrointestinal transit time in Podocnemis unifilis troschel, 1848 (Testudines, Podocnemididae). = Aspectos anátomo-radiográficos e tempo de trânsito gastrintestinal em Podocnemis unifilis troschel, 1848 (Testudines, Podocnemididae)

open access: yesActa Scientiarum: Biological Sciences, 2010
The present study analyzed the radiographic anatomy and determined thegastrointestinal transit time of Podocnemis unifilis. We used ten animals belonging to LAPAS from the Federal University of Uberlândia, Uberlândia, Minas Gerais State, Brazil.
Fernando Moraes Machado Brito   +5 more
doaj   +1 more source

Cytogenetic characterization of the Savannah Sideneck Turtle Podocnemis vogli (Reptilia: Testudinata: Podocnemididae)

open access: yesActa Biológica Colombiana, 2005
Seven specimens of Podocnemis vogli were studied; three were collected at Puerto López and Puerto Gaitán in the Meta Department of Colombia, four lacks collecting data.
ML. Ortiz, PA. Rodríguez, ML. Bueno
doaj   +1 more source

Marine turtles are only minimally sexually size dimorphic, a pattern that is distinct from most nonmarine aquatic turtles. [PDF]

open access: yesEcol Evol, 2022
Marine turtles are only minimally sexual size dimorphic, whereas nonmarine aquatic turtles typically exhibit female‐biased sexual size dimorphism. The reason for this difference is likely the sustained long‐distance swimming that characterizes marine turtle ecology, which entails significant energetic costs incurred by both sexes. Hence, the ability of
Figgener C, Bernardo J, Plotkin PT.
europepmc   +2 more sources

Unveiling the Evolutionary Lineages and Habitat Dynamics of the Monotypic Crowned River Turtle <i>Hardella thurjii</i> (Gray, 1831) (Testudines: Geoemydidae): Strategic Conservation Insights for an Endangered Freshwater Turtle From Southern Asia. [PDF]

open access: yesEcol Evol
This study provides the first complete mitochondrial genome of the monotypic H. thurjii , sequenced using next‐generation technologies. Additionally, it employs ensemble species distribution modeling to evaluate habitat suitability and shape geometry under both current and projected climatic scenarios.
Abedin I   +7 more
europepmc   +2 more sources

Temperature-sex determination in Podocnemis expansa (Testudines, Podocnemididae) [PDF]

open access: yesIheringia. Série Zoologia, 2011
This study has been carried out at the central region of the Araguaia river on the border between the states of Goiás and Mato Grosso in the Brazilian Amazon Basin from September to December 2000. We recorded temperature fluctuation, clutch-size, incubation period and hatching success rate and hatchlings' sex ratio of five nests of Podocnemis expansa ...
Bonach, Kelly   +3 more
openaire   +4 more sources

Beyond harm’s reach? Submersion of river turtle nesting areas and implications for restoration actions after Amazon hydropower development [PDF]

open access: yesPeerJ, 2018
The global expansion of energy demands combined with abundant rainfall, large water volumes and high flow in tropical rivers have led to an unprecedented expansion of dam constructions in the Amazon.
Darren Norris   +2 more
doaj   +2 more sources

Neuroanatomical Study and Three-Dimensional Reconstruction of the Skull of a Bothremydid Turtle (Pleurodira) Based on the European Eocene Tartaruscola teodorii

open access: yesDiversity, 2021
Bothremydidae is a successful lineage of pleurodiran turtles that lived from the Cretaceous to the Paleogene, and are found in most continents of both Laurasia and Gondwana.
Marcos Martín-Jiménez   +1 more
doaj   +1 more source

A systematic compendium of turtle mandibular anatomy using digital dissections of soft tissue and osteology

open access: yesThe Anatomical Record, Volume 306, Issue 6, Page 1228-1303, June 2023., 2023
Abstract Turtles are a charismatic reptile group with a peculiar body plan, which most notably includes the shell. Anatomists have often focused descriptive efforts on the shell and other strongly derived body parts, such as the akinetic skull, or the cervical vertebrae.
Serjoscha W. Evers   +4 more
wiley   +1 more source

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