Results 1 to 10 of about 2,308 (127)
Phylogeography and population genetic structure of the cardinal tetra (Paracheirodon axelrodi) in the Orinoco basin and Negro River (Amazon basin): evaluating connectivity and historical patterns of diversification [PDF]
PeerJ, 2023 The Neotropics contain one of the most diverse assemblages of freshwater fishes worldwide. Part of this diversity is shared between the Orinoco and Amazon basins.
Diana Sanchez-Bernal +4 more
doaj +3 more sources
Biota Colombiana, 2014 Crocodylus intermedius (Graves 1819), commonly known at the Orinoco Crocodile, is an endemic species of the Orinoco River Basin that occurs in Colombia and Venezuela. Within the Neotropical Crocodylia, it is considered the most endangered species, listed
Mónica A. Morales-Betancourt +3 more
doaj +11 more sources
Biota Colombiana, 2022 The ichthyological collection of the Unillanos Natural History Museum (MHNU-I) is the first fish collection of the Colombian Orinoquia. The collection harbors 78 806 specimens in 3229 lots, collected between 2012 and 2019, representing 10 orders, 42 ...
Miguel Ángel Cortes Hernández +3 more
doaj +1 more source
Missing the point: re-evaluating the earliest lithic technology in the Middle Orinoco [PDF]
Royal Society Open Science, 2018 The Culebra site, located in close proximity to the Atures Rapids, is one of the very few open-air occupations in the entire Orinoco valley that is thought to date to the early Holocene. Following renewed excavations in this location, we characterize the
Philip Riris +2 more
doaj +1 more source
Historia Crítica, 2023 Objective/context: In France’s second half of the 19th century, magazines such as Le Tour du Monde and illustrated novels were used to promote geographical sciences and educational and political propaganda of the Third Republic and its economic interests
Natalia Lozada Mendieta +1 more
doaj +1 more source
A taxonomic review of the Neotropical electric fish Rhamphichthys (Gymnotiformes: Rhamphichthyidae) [PDF]
Neotropical Ichthyology, 2023 The species diversity and taxonomy of Rhamphichthys is reviewed and seven species are considered valid: Rhamphichthys apurensis from the Orinoco and Cuyuni river basins; R. drepanium from the Amazon and Orinoco river basins; R.
Tiago P. Carvalho, James S. Albert
doaj +1 more source
Graellsia, 2020 La morfología y anatomía de las dos subespecies actuales de Inia geoffrensis (Blainville, 1817) son muy similares. Debido a esto varios investigadores han evaluado la validez taxonómica de éstas.
Israel Cañizales
doaj +1 more source
Biota Colombiana, 2021 We recorded the soundscape at four cattle ranches at the foothills of the Meta department, Colombia. We used eight acoustic recorders, four in silvopastoral systems and four in traditional cattle systems.
Andrea Morales Rozo +5 more
doaj +1 more source
Revista de Lenguas Modernas, 2020 Este artículo presenta un estudio de evaluación de funciones ejecutivas en estudiantes de educación superior que presentaron bajo y alto rendimiento en prueba lectoescritora, con el fin de identificar causas que desde los procesos neurolingüísticas ...
Paula Andrea Orozco Pineda +1 more
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Peces de la cuenca del río Orinoco. Parte I: Lista de especies y distribución por subcuencas
Biota Colombiana, 2004 Para efectos del presente trabajo y en función de los datos disponibles hasta la fecha, se consideran las siguientes subcuencas y/o regiones para la cuenca del Orinoco, desde su nacimiento hasta su desembocadura en el océano Atlántico: Alto Orinoco ...
Carlos A. Lasso +13 more
doaj +8 more sources