Results 51 to 60 of about 3,339 (205)
Análisis de una estrategia de conservación para Podocnemis unifilis en la Estación de Biodiversidad Tiputini [PDF]
, 2010 Podocnemis unifilis has experienced a drastic decrease along its distribution in the Ecuadorian Amazon. With this motivation the Tiputini Biodiversity Station from Universidad San Francisco de Quito began a head-starting project for this species ...
Rivera Rojas, Laura Maricela
core
Isotopic ordering in eggshells reflects body temperatures and suggests differing thermophysiology in two Cretaceous dinosaurs [PDF]
, 2015 Our understanding of the evolutionary transitions leading to the modern endothermic state of birds and mammals is incomplete, partly because tools available to study the thermophysiology of extinct vertebrates are limited.
Cerling, Thure E. +13 more
core +3 more sources
Acta Biológica Colombiana, 1992 The histological and organogenical development of the turtle Podocnemis unifilis are presented. This study covers 28 chronological steps which were defined in a period of 95 days.
Nory Astrid Guzman Ballesteros +1 more
doaj
Acta Scientiarum: Biological Sciences, 2009 Este trabalho foi desenvolvido com o intuito de enriquecer o conhecimento sobre a morfologia vascular das artérias renais e gonadais de Podocnemis unifilis, facilitando o entendimento da fisiologia clínica e cirúrgica destes animais.
Líria Queiroz Luz Hirano +5 more
doaj +1 more source
Diversity, 2023 (1) Background: Hemoparasites of the genus Haemogregarina (Haemogregarinidae) are commonly reported in freshwater turtles. However, in Brazil, only three species have currently been characterised using molecular methods.
Letícia Pereira Úngari +3 more
doaj +1 more source
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 +4 more
wiley +1 more source
Temperature-sex determination in Podocnemis expansa (Testudines, Podocnemididae) [PDF]
Iheringia. 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
Bioscience Journal, 2006 Foram estudadas cinco Podocnemis expansa, fêmeas, jovens, procedentes do rio Araguaia município de Cocalinho-MT sob Licença do IBAMA No 013/97-DIFAS. Os animais tiveram seu sistema arterial injetado com solução de látex corada com pigmento específico e ...
Andre Luiz Quagliatto Santos +7 more
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Phylogeny, biogeography and diversification patterns of side-necked turtles (Testudines: Pleurodira) [PDF]
, 2018 Pleurodires or side-necked turtles are today restricted to freshwater environments of South America, Africa– Madagascar and Australia, but in the past they were distributed much more broadly, being found also on Eurasia, India and North America, and ...
Assine ML +17 more
core +2 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 +16 more
wiley +1 more source