Article
Materials Science, Multidisciplinary
Radan Elvis Matias de Oliveira, Fernanda Loffler Niemeyer Attademo, Ana Caroline Freitas Caetano de Sousa, Joao Vitor de Oliveira Gurgel, Marcela dos Santos Magalhaes, Carlos Eduardo Bezerra de Moura, Ana Bernadete Lima Fragoso, Flavio Jose de Lima Silva, Moacir Franco de Oliveira
Summary: The morphological studies on the digestive system of hawksbill turtle hatchlings revealed strong indications of adaptations to a carnivorous diet, shedding light on their feeding behavior in the wild.
MICROSCOPY AND MICROANALYSIS
(2022)
Article
Ecology
Caroline Regina Dias Machado, Matheus Azambuja, Camila Domit, Gabriel Fraga da Fonseca, Larissa Glugoski, Camilla Borges Gazolla, Rafael Bonfim de Almeida, Marcela Baer Pucci, Thais Torres Pires, Viviane Nogaroto, Marcelo Ricardo Vicari
Summary: Hybridization among sea turtle species on the Brazilian coast is atypical and poorly understood, but this study provides insights into the genetic composition and chromosome sets of possible interspecific hybrids. The findings show that hybrid individuals possess native alleles from different parental lineages and have balanced hybrid chromosome sets. The long-term implications of sea turtle hybridization on genetic features and function are still unpredictable.
JOURNAL OF EVOLUTIONARY BIOLOGY
(2023)
Article
Ecology
Christine Figgener, Joseph Bernardo, Pamela T. Plotkin
Summary: Comparing to non-marine turtles, marine turtles exhibit minimal sexual size dimorphism due to the significant energetic costs incurred by both sexes, which constrain the ability to allocate resources proportionately more to growth.
ECOLOGY AND EVOLUTION
(2022)
Article
Biology
Ray Brasil Bueno de Souza, Wilfried Klein
Summary: The respiratory system of chelonians adapts to breathing underwater by increasing static and dynamic compliance, with submersion significantly altering breathing mechanics by increasing minute work of breathing. The post-pulmonary septum (PPS) plays a crucial role in maintaining a constant volume within the body cavity, facilitating easier ventilation of the lungs in aquatic environments.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Article
Veterinary Sciences
Radan Elvis Matias de Oliveira, Fernanda Loffler Niemeyer Attademo, Augusto Carlos da Boaviagem Freire, Juliana Maia de Lorena Pires, Daniel Solon Dias de Farias, Aline da Costa Bomfim, Rysonely Maclay de Oliveira, Simone Almeida Gavilan, Flavio Jose de Lima Silva, Moacir Franco de Oliveira
Summary: This paper reports the trauma suffered by a green turtle due to a collision with a motorboat, which resulted in fatal injuries. The necropsy revealed multiple fatal injuries caused by the collision, leading to intense pain, paralysis, septicemia, and death of the animal.
ACTA VETERINARIA-BEOGRAD
(2021)
Article
Paleontology
Gebely Abdel-Maksoud Abu El-Kheir, Mohamed Korany Abdelgawad, Walid Gamal Kassab
Summary: The Maastrichtian deposits in Egypt and Africa have limited records of chelonioids, hindering understanding of their evolution and extinction during this period. The Dakhla Basin in Egypt has provided valuable fossils that help fill gaps in the history of African turtles and contribute to research on their evolution and extinction during the Late Cretaceous.
ACTA PALAEONTOLOGICA POLONICA
(2021)
Article
Paleontology
Randolph Glenn de la Garza, Henrik Madsen, Mats E. Eriksson, Johan Lindgren
Summary: This study describes a new hard-shelled sea turtle fossil from the lower Eocene of Denmark, with vestigial soft tissues preserved. The fossil shows primitive characters and possible affinity with the extinct pan-cheloniid Eochelone. The presence of bite marks on the carapace suggests attacks by crocodylians or other large-sized seagoing tetrapods.
JOURNAL OF VERTEBRATE PALEONTOLOGY
(2021)
Article
Ecology
Harriet B. Drage, David A. Legg, Allison C. Daley
Summary: This study describes the moulting behavior and adaptive characteristics of a species of extinct euarthropods called marrellomorphs found in the Early Ordovician Fezouata Shale Lagerstatte of Morocco. The research suggests that these marrellomorphs exhibited similar moulting behaviors to extant lobster-like arthropods, which could be attributed to their complex morphology and the need for extracting complex spines. This study expands our understanding of important characteristics of extinct euarthropods.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Biology
Lan Li, Chang-Fu Zhou, Marton Rabi
Summary: Manchurochelys manchoukuoensis is a sinemydid stem-cryptodire turtle found in Lower Cretaceous beds in China, important for understanding the origin and evolution of crown-group hidden-neck turtles. A newly discovered fossil specimen provides a detailed osteological description of the species.
HISTORICAL BIOLOGY
(2022)
Article
Ecology
Thomas W. Dudgeon, Marissa C. H. Livius, Noel Alfonso, Stephanie Tessier, Jordan C. Mallon
Summary: A new model using intramanual measurements has been introduced to estimate habitat likelihood more accurately. This model supports the hypothesis that stem-turtles were primarily terrestrial in nature.
ECOLOGY AND EVOLUTION
(2021)
Article
Environmental Sciences
Juliana dos Santos Mendonca, Julio Cesar Neves de Almeida, Lucelia Goncalves Vieira, Liria Queiroz Luz Hirano, Andre Luiz Quagliatto Santos, Denis Vieira Andrade, Guilherme Malafaia, Robson Jose de Oliveira Jr, Marcelo Emilio Beletti
Summary: Pesticides, especially glyphosate and fipronil, have mutagenic and toxic effects on neonates of Podocnemis expansa, causing histopathological damage and genetic alterations. The presence of blebbed nuclei, moved nuclei, and notched nuclei indicate the increased frequency of erythrocyte nuclear abnormalities. Exposure to fipronil leads to congestion and inflammatory infiltrate in the liver tissue and congestion and necrosis in the encephalon. This study highlights the significance of using different biomarkers to evaluate the ecotoxicological effects of pesticides on oviparous animals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Eduardo Ascarrunz, Julien Claude, Walter G. Joyce
Summary: Quantitative analyses examining the placement of Messel geoemydids in a reference tree generated from molecular data show that their position remains uncertain, with different methods yielding varied results. Parsimony suggests placement as sister to two different species, but with weak support, highlighting the challenge of determining the relationships within this group.
Article
Environmental Sciences
Maria V. Petry, Leonardo D. Araujo, Antonio C. Brum, Victoria R. F. Benemann, Julia Victoria G. Finger
Summary: Juvenile green turtles off the coast of Southern Brazil show a high interaction with marine debris, with each turtle ingesting a significant amount of plastic fragments on average. This poses a serious threat to the conservation of green turtles in the region.
MARINE POLLUTION BULLETIN
(2021)
Article
Geosciences, Multidisciplinary
Francesc Perez-Peris, Lukas Laibl, Lorenzo Lustri, Pierre Gueriau, Jonathan B. Antcliffe, Orla G. Bath Enright, Allison C. Daley
Summary: A new species of small-bodied nektaspid, Tariccoia tazagurtensis, has been described from the Lower Ordovician Fezouata Shale of Morocco. Two specimens of T. tazagurtensis show remains of digestive glands similar to those seen in the Cambrian nektaspid Naraoia. This suggests that these nektaspids might have migrated into colder brackish or restricted seas during the Ordovician Period from open-marine communities during the Cambrian Period.
GEOLOGICAL MAGAZINE
(2021)
Article
Ecology
Christophe Dupichaud, Bertrand Lefebvre, Claire H. Milne, Rich Mooi, Martina Nohejlova, Renaud Roch, Farid Saleh, Samuel Zamora
Summary: Solutan echinoderms from the Lower Ordovician in Morocco are geographically widespread and have a long biostratigraphic range. Some specimens show exceptionally preserved internal soft parts, expanding our understanding of their anatomy. The newly described solutan taxa contribute to the diversity of the Fezouata Biota.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
