Results 61 to 70 of about 4,111 (235)

La tortuga pre-Podocnemidid más antigua (Chelonii, Pleurodira), Cretácico inferior, estado de Ceará, Brasil, y su entorno [PDF]

open access: yes, 2000
A new form of a chelonian Pleurodira is described, Brasilemys josai, n.g., n. sp. Its phyletic position is examined with respect to previously established phylogenies.
Lapparent de Broin, F. de
core  

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

open access: yesConservation 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

Crescimento e eficiência alimentar de tracajás (Podocnemis unifilis) juvenis em cativeiro

open access: yesDELOS: DESARROLLO LOCAL SOSTENIBLE, 2023
Dentre os quelônios da Amazônia, o tracajá, Podocnemis unifilis (Troschel, 1848), é uma das espécies mais capturadas para consumo na Amazônia brasileira, integrando a lista de animais vulneráveis à extinção.
J. D. C. Araújo   +4 more
semanticscholar   +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

open access: yesJournal 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   +5 more
wiley   +1 more source

Poredbene hematološke i biokemijske analize divovske amazonske kornjače uzgajane pod lošim i normalnim hranidbenim uvjetima [PDF]

open access: yes, 2009
Besides indicating the baseline values of the species, blood parameter assessments of chelonian may also be used as quick tools for diagnosing health status.
Antonio A. Oliveira-Junior   +4 more
core   +1 more source

Biochemical indices to monitor health status with respect to reproductive cycle of Melanochelys trijuga [PDF]

open access: yes, 2013
Blood analysis can provide information regarding the physiological condition of an individual animal or population health as a whole. The present investigation analyzed clinical laboratory data of soluble organic substances of plasma namely triglycerides,
Chandavar, Vidya R.   +3 more
core   +2 more sources

ASSESSMENT OF A COMMUNITY MANAGEMENT PROGRAM OF RIVER TURTLES (PODOCNEMIDIDAE: Podocnemis) IN ZÁBALO, ECUADORIAN AMAZON

open access: yesRevista Latinoamericana de Herpetología, 2023
In Zábalo community within the Cuyabeno Fauna Production Reserve, a 26-year local initiative aimed at river turtle management was initiated following a significant decline in Podocnemis unifilis and P. expansa populations.
S. Varela   +13 more
semanticscholar   +1 more source

Morfologia externa, topografia do coração e comportamento da arteria coronaria de Podocnemis expansa (Schweigger, 1812)

open access: yesBioscience 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
doaj  

Primer registro para el Perú de Nematophila grandis (Diesing, 1839) Travassos, 1934 (Trematoda, Diplodiscidae) en Podocnemis unifilis (Troschel, 1848) (Testudines, Pelomedusidae)

open access: yesRevista Peruana de Biología, 2013
El presente trabajo registra por primera vez para el Perú a Nematophila grandis (Diesing, 1839) Travassos, 1934, en la tortuga de río Podocnemis unifilis «taricaya».
Patricia Salízar, Lidia Sánchez
doaj   +1 more source

Using life history to predict outcomes of conservation translocations of herpetofauna

open access: yesAnimal Conservation, Volume 28, Issue 4, Page 592-606, August 2025.
We collected data on key life history traits for all herpetofauna profiled in the IUCN Global Conservation Translocation Perspectives series to examine how life history can predict outcomes and difficulties of conservation translocations. The relationships we found provide important insights for conservation practitioners that can be used in the ...
M.R. Parker, L.A. Fitzgerald
wiley   +1 more source

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