Results 61 to 70 of about 2,665 (171)

Fossil freshwater fishes from the Pliocene of northern Colombia and the palaeogeography of northern South America

Papers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract Freshwater fishes from the northwestern Colombian Andes are reported from the Pliocene Sincelejo and Ware formations. A total of 10 taxa have been identified, involving two orders, five families and nine genera. Characters from dental morphology, fin spines and cranial bones are provided as taxonomic tools for the study of fossil fishes.
Gustavo A. Ballen, Camilo Montes, Jorge D. Carrillo‐Briceño, Sergio Bogan, Sandra Reinales, Mario C. C. de Pinna, Carlos Jaramillo   +6 more
wiley   +1 more source

Plant populations in ancient grasslands harbour higher levels of genetic diversity

Journal of Applied Ecology, Volume 63, Issue 7, July 2026.
Since ancient grasslands harbour genetically more diverse plant populations, land use history should be given more attention in conservation management. Abstract Land‐use change and intensification can be a threat to biodiversity of grassland habitats, including genetic diversity.
Lena Winkler, Vinzenz Gilgenreiner, Hannah Schmitt, Christoph Reisch   +3 more
wiley   +1 more source

In Defence of Food: A Comparative Study of Conversas' and Moriscas' Dietary Laws as a Form of Cultural Resistance in the Early Modern Crown of Aragon

Gender &History, Volume 38, Issue 2, Page 453-463, July 2026.
ABSTRACT This research explores the adaptive strategies employed by Conversas (Christian women of Jewish origin) and Moriscas (Christian women of Muslim origin) in navigating adversity, particularly in their interactions with inquisitorial authorities in the early modern Crown of Aragon. This study analyses these women's efforts to uphold religious and
Ivana Arsić
wiley   +1 more source

¿Un país de irresponsables?: Filming Responsibility for Environmental Harm in the Judicialised Matanza‐Riachuelo River Basin

Bulletin of Latin American Research, Volume 45, Issue 3, July 2026.
ABSTRACT This article explores how documentary film constructs responsibility for environmental harm in response to the Argentine Supreme Court's 2008 ruling on the polluted Matanza‐Riachuelo river basin. Through an interdisciplinary dialogue between socio‐legal, film and cultural studies, the analysis explores how three documentaries envisage ...
Oliver Wilson‐Nunn
wiley   +1 more source

Trichomycterus venulosus (Steindachner, 1915): posible extint species from the páramo de Cruz Verde (Cundinamarca, Colombia)

Biota Colombiana, 2006
The investigation was carried out between November 2004 and August 2005, and was based on the rivers Teusaca, Idaza, La Laguna (Quebrada Blanca), del Salteador creek, Marlene creek (affluent of the del Salteador creek), Blanca creek (Mataredonda-Reserve)
Saúl Prada-Pedreros, Carlos Alberto Rivera-Rondón, Jürgen Guerrero-Kommritz   +2 more
doaj   +8 more sources

Two new cis-Andean species of the South American catfish genus Megalonema allied to trans-Andean Megalonema xanthum, with description of a new subgenus (Siluriformes: Pimelodidae)

Neotropical Ichthyology
A revised diagnosis of the pimelodid catfish genus Megalonema is given based on synapomorphic features of the Weberian complex and gas bladder. Megalonema xanthum from the Magdalena River is redescribed.
John G. Lundberg, Wasila M. Dahdul
doaj   +1 more source

Thermal and Structural Reconstruction of an Eroded Foreland Basin: Central Appalachian Basin, USA

Basin Research, Volume 38, Issue 4, July–August 2026.
New low‐temperature thermochronology and modelling reveal a complex thermal history for the central Appalachian Basin. Results indicate Carboniferous exhumation of the fold‐thrust belt and Mesozoic heating in the foredeep linked to the Rome Trough. Deeply buried Devonian source rocks were consequently pushed past the peak oil and gas windows.
Kristopher L. Symanski, Magdalena Ellis Curry, Brandon Lutz, Paul O'Sullivan   +3 more
wiley   +1 more source

Influence of River Discharge and Tides on the Salinity Structure at the Magdalena River Estuary

Estuaries and Coasts
AbstractThe salinity structure in the Magdalena River estuary results from a massive river discharge and a micro-tidal regime over a narrow-deep channel. Both environmental forcings are analyzed here to assess their effects on the temporal and spatial variability of the estuarine system.
Yuley Cardona, Óscar Álvarez-Silva, Yennis Barrios, Victor Saavedra, Alejandro Cáceres-Euse, María A. Cantero, Andrés F. Osorio   +6 more
openaire   +1 more source

Tiempo de vidrio y de abundancia. Saberes y oficios de la cultura fluvial en el Alto Magdalena, Colombia

Revista de Estudios Sociales, 2016
The territories of the Magdalena River basin are currently undergoing changes, transformations, and socioeconomic impacts as a result of mega-development projects for navigability and the construction of hydroelectric projects.
Martín Andrade Pérez, Catalina García
doaj   +1 more source

[Reproduction of Saccodon dariensis (Teleostei: Parodontidae) in Guatapé River tributaries, Magdalena River basin, Colombia].

Revista de biologia tropical, 2016
Colombia posee una alta diversidad de peces de montaña dentro de la región Andina, con alto número de endemismos, por lo que el conocimiento de su biología reproductiva es necesario para su protección y conservación. Se estudió la biología reproductiva de Saccodon dariensis en las quebradas Peñoles y El Cardal, parte media del río Guatapé, cuenca del ...
Mancera-Rodríguez, Néstor Javier, Castellanos-Barliza, Jeiner, Urrego-Ballestas, Diego Alejandro   +2 more
openaire   +3 more sources