Results 51 to 60 of about 663 (179)

Environmental Contaminant Accumulation in Freshwater Turtles Inhabiting Three Rivers of the Permian Basin, New Mexico, USA

Environmental Toxicology, EarlyView.
ABSTRACT Freshwater turtles are valuable sentinels of aquatic systems due to their long lifespans and resilience in environments impacted by contaminants. The Permian Basin, dominated by the oil and gas sector, spans western Texas and southeastern New Mexico, USA, including the Pecos River and its tributaries, the Delaware and Black Rivers.
Ana G. G. Sapp, W. Gregory Cope, Christopher E. Moorman, Frank X. Weber, Ivana Mali   +4 more
wiley   +1 more source

Aproveitamento de alimentos de origem animal pela tartaruga-da-amazônia: Podocnemis expansa criada em cativeiro The use of animal feed in the diet of captive Arrau sideneck: Podocnemis expansa

Acta Amazonica, 2009
Foi realizado um trabalho para determinar o aproveitamento alimentar da farinha de carne e ossos (FCO), farinha de vísceras de aves (FVA) e farinha de peixe (FP) em tartaruga-da-amazônia, por meio dos coeficientes de digestibilidade aparente (CDA) da ...
Cauê Guion de Almeida, Augusto Shinya Abe   +1 more
doaj   +1 more source

Chromosome‐Level Genome Assemblies of Two Softshell Turtles with ZZ/ZW Provide Insights into TE‐Driven Recombination Suppression in Sex Chromosomes

Integrative Zoology, EarlyView.
This study presents the first genomic identification and characterization of ZW sex chromosomes in two soft‐shelled turtle species through genome assembly and resequencing. We reveal the structural organization of ZW chromosomes, identifying both pseudoautosomal regions (PARs) and differentiated regions.
Jianjun Liu, Zhiyuan Yang, Min Tang, Tingting Chen, Siqi Liu, Ziyao Meng, Xingjiang Bu, Xingquan Xia, Guang Yang, Liuwang Nie   +9 more
wiley   +1 more source

Reproductive Allometry ofPodocnemis expansa(Testudines: Podocnemididae) in Southern Brazilian Amazon

Journal of Herpetology, 2013
Abstract Podocnemis expansa is the largest freshwater turtle in South America and exhibits a complex reproductive behavior. Females lay eggs in sandy banks formed during the dry season. Nesting habitat can influence hatching success and sex determination.
Costa Gonçalves Portelinha, Thiago, Malvásio, Adriana, Piña, Carlos Ignacio, Bertoluci, Jaime   +3 more
openaire   +2 more sources

3D CT Anatomy and Morphology of the Appendicular Skeleton of European Pond Turtle (Emys orbicularis)

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
This study has been designed to assess the anatomical features of the skeletal system in this species and draw comparisons with other turtle species. CT‐Scan Machine and Micro CT‐Scan Machine were used for this study. Gross anatomical studies were performed on prepared bones using the method of using insects.
Omid Zehtabvar, Ali Reza Vajhi, Somaye Davudypoor, Roshanak Mokhtari, Kiana Farahani, Seyyed Hossein Modarres Tonekabony   +5 more
wiley   +1 more source

Development of scleral ossicles in Podocnemis expansa (Testudines: Podocnemididae) embryos exposed to atrazine

Drug and Chemical Toxicology, 2019
Understanding the effects of atrazine exposure on embryo development in oviparous animals may provide important data regarding the impacts of agrochemical use on wildlife and the ecosystem. This study set out to determine the effects of embryonic atrazine exposure on the development of osseous and cartilaginous components of scleral ossicles in ...
Carneiro, Isabela Vieira, Gonçalves Vieira, Lucélia, dos Santos Mendonça, Juliana, Queiroz Luz Hirano, Líria, Chavauty Valdes, Sady Alexis, Tannús Menezes-Reis, Lorena, Quagliatto Santos, André Luiz   +6 more
openaire   +3 more sources

Mosaic morphology in Podocnemididae revealed by a new turtle from the Middle Miocene La Venta Biome, Colombia

Papers in Palaeontology, Volume 11, Issue 6, November/December 2025.
Abstract A new genus and species of podocnemidid turtle, Shakiremys colombiana, is described here from the Middle Miocene La Venta Biome, located in south‐central Colombia. The new taxon is represented by two specimens: one consisting of a complete skull and articulated shell, and the other of an articulated shell only.
Edwin‐Alberto Cadena, David E. Leal‐Amaya, Andrés Vanegas‐Vanegas, Rubén D. Vanegas‐Vanegas, Lino J. E. Guevara‐Serrano   +4 more
wiley   +1 more source

Association of midazolam with ketamine in giant Amazon river turtles Podocnemis expansa breed in captivity [PDF]

Acta Cirurgica Brasileira, 2012
PURPOSE: Evaluate the effects of two anesthetic associations in giant Amazon river turtles (P. expansa). METHODS: Twenty P. expansa, healthy, of both sexes, with weights between 1.0 and 1.5 kg of a commercial breeding facility located in the valley of the Araguaia River, Goiás, Brazil, were divided into two groups ( G1 n = 10 and G2 n = 10). Each group
Alves-Júnior, José Roberto Ferreira, Bosso, Andréa Cristina Scarpa, Andrade, Mariana Batista, Werther, Karin, Santos, André Luiz Quagliatto   +4 more
openaire   +5 more sources

Breaking down silos: Conservation areas for Amazonian flagship terrestrial and freshwater species

Conservation Science and Practice, Volume 7, Issue 9, September 2025.
This study shows that 17% of the Amazon River Basin is covered by areas of high jaguar density and freshwater migratory species richness, 83% of which are found in Brazil and Peru. A third of these areas are located outside of formal protected areas or Indigenous territories.
Natalie Shahbol, Melissa Arias, Valeria Boron, Helga Correa Wiederhecker, Bernardo Caldas De Oliveira, Fabiola La Rosa, Robin Naidoo, Marcelo Oliveira‐Da‐Costa, Jessica Pacheco, Mariana Paschoalini Frias, Sandra Petrone, Lila Sainz, David Tickner, Fernando Trujillo, José Saulo Usma Oviedo, Paul Andre Van Damme, Michele Thieme   +16 more
wiley   +1 more source

Estimating abundance of aggregated populations with drones while accounting for multiple sources of errors: A case study on the mass nesting of Giant South American River Turtles

Journal of Applied Ecology, Volume 62, Issue 8, Page 2036-2047, August 2025.
The developed approach can be applied to several contexts to efficiently survey spatially aggregated populations using drone‐derived orthomosaics, and to understand phenology at these aggregation sites. We provide general recommendations for planning surveys and discuss implementations of our approach using other types of marking methods and model ...
Ismael V. Brack, Denis Valle, Camila Ferrara, Omar Torrico, Enrique Domic‐Rivadeneira, German Forero‐Medina   +5 more
wiley   +1 more source