Results 1 to 10 of about 5,950 (217)

Perivitelline Membrane‐Bound Sperm as a Source of Paternal Genomic DNA to Inform Breeding Male Marine Turtle Genetics and Demographics [PDF]

open access: yesEcology and Evolution
Sex in marine turtles is determined by incubation conditions, raising concerns of population feminization and loss of genetic diversity due to warming temperatures.
Brian M. Shamblin   +3 more
doaj   +3 more sources

Spermatogenesis and Morphology of the Male Reproductive Tract of the Turtle Kinosternon scorpioides. [PDF]

open access: yesAnat Histol Embryol
ABSTRACT The scorpion mud turtle (Kinosternon scorpioides), a freshwater chelonian widely distributed in South and Central America, presents gaps in the microscopic and ultrastructural characterisation of its male reproductive system. This study provides a comprehensive characterisation of the testes, epididymides, and deferent ducts of adult males ...
de Godoy VMR   +4 more
europepmc   +2 more sources

Trends in Urban Wild Meat Trade of Chelonians (Turtles and Tortoises) in the Peruvian Amazon [PDF]

open access: yesAnimals
Culturally, chelonians are important sources of nutrition and income for rural and urban people in tropical rainforests, but urban trade can cause declines in wild populations.
Pedro Mayor   +7 more
doaj   +2 more sources

A comprehensive embryonic staging series of the turtle Trachemys scripta. [PDF]

open access: yesDev Dyn
Abstract Background Turtles hold a unique place in vertebrate evolutionary history, making them critical assets in embryology research. Yet, they remain understudied as potential model organisms in the field. Here, to support experimental manipulations with turtle embryos, we have created a complete normal table of development for comprehensive ...
Noravian CM   +6 more
europepmc   +2 more sources

Classification of pleurodire polystomes (Platyhelminthes, Monogenea, Polystomatidae) revisited with the description of two new genera from the Australian and Neotropical Realms [PDF]

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2022
Polystomatids are platyhelminth parasites that infect mostly amphibian and chelonian hosts. Polystomatid of testudines were, for more than seven decades, classified in the three genera – Neopolystoma Price, 1939, Polystomoides Ward, 1917 and ...
Louis Heyns du Preez   +2 more
doaj   +2 more sources

Synteny Enabled Upgrade of the Galapagos Giant Tortoise Genome Improves Inferences of Runs of Homozygosity [PDF]

open access: yesEcology and Evolution
The utility and importance of whole‐genome sequences are recognized across various fields, including evolution and conservation. However, for some taxa, like extinct species, using methods to generate contiguous genomes that rely on high‐quality DNA is ...
Evelyn L. Jensen   +7 more
doaj   +2 more sources

Human–Chelonian Bond in Italy: An Exploratory Study of Pet Turtle and Tortoise Ownership [PDF]

open access: yesVeterinary Sciences
The adoption of exotic animals as pets is increasing across Europe. This study explores the human–chelonian relationship in the Italian population, specifically the motivations for acquiring reptiles as pets and the nature of the emotional bonds between ...
Carmen Borrelli   +3 more
doaj   +2 more sources

Embryonic development of scorpion mud turtle (Kinosternon scorpioides) from captive [PDF]

open access: yesOpen Veterinary Journal
Background: The developmental biology of Kinosternon scorpioides is described, based on the phenotype. This species is important for the flora because they are excellent seed disseminators.
Lianne Polliane Fernandes Araujo Chaves   +6 more
doaj   +2 more sources

The Use of Prefemoral Endoscope-Assisted Surgery and Transplastron Coeliotomy in Chelonian Reproductive Disorders [PDF]

open access: yesAnimals, 2022
Throughout the last decades, the increased popularity of the keeping of reptiles has led to a better understanding of the captive needs of a wide variety of species.
Tom Hellebuyck, Ferran Solanes Vilanova
doaj   +2 more sources

Community-Based Conservation and Management of Chelonians in the Amazon

open access: yesFrontiers in Ecology and Evolution, 2022
Chelonians represent an important resource in the Amazon, either as a source of protein at the base of the food chain of aquatic and transition ecosystems, or in the dispersion of seeds of plants from floodplains and flooded forests.
Paulo Cesar Machado Andrade   +18 more
doaj   +1 more source

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