Results 71 to 80 of about 755 (165)

Histopathology and genotoxicity alterations in high Andean catfishes from the Upper Orinoco River Basin, Colombia

Brazilian Journal of Biology
Abstract Freshwater ecosystem pollution has motivated an extensive list of studies due to deleterious impacts becoming a threat to aquatic organisms that inhabit these environments. This is the first approach to water pollution impact derived from human activities on native ichthyofauna in the Garagoa river basin in Boyacá (Colombian Andes). Therefore,
W. Corredor-Santamaría, J. P. Alvarez-Silva, M. A. Pérez-Mayorga, Y. M. Velasco-Santamaría, C. A. Roa-Fuentes, A. J. Espinosa-Ramírez   +5 more
openaire   +4 more sources

Spatial and temporal length distribution of Zungaro zungaro caught in the Orinoco River Basin of Colombia

Revista MVZ Córdoba, 2016
ABSTRACT Objetive. To determine the effect of fishing on capture size of both male and female Zungaro zungaro catfish, historical records of size and spatial distribution of the species were analyzed from the Orinoco Basin in Colombian. Materials and methods.
openaire   +6 more sources

Biofuels and climate change in the colombian Orinoco river basin

, 2013
In recent decades, the search for natural resources has reconfigured the geopolitical map through new political-economic alliances. Regional studies identify the South American continent as the scene for a potential trade dispute between two poles: the emerging BRICS and the old industrialized countries.
openaire   +1 more source

Multitemporal Dynamics of Fuels in Forest Systems Present in the Colombian Orinoco River Basin Forests

Fire
In Colombia’s Orinoco, wildfires have a profound impact on ecosystem dynamics, particularly affecting savannas and forest–savanna transitions. Human activities have disrupted the natural fire regime, leading to increased wildfire frequency due to changes in land use, deforestation, and climate change.
Walter Garcia-Suabita, Mario José Pacheco, Dolors Armenteras   +2 more
openaire   +2 more sources

Hydro-meteorological functioning of tropical montane cloud forests in the Orinoco River basin

, 2018
The hydrologic interactions between the atmosphere, land cover and soil largely determine water availability to sustain ecosystems’and anthropogenic demands. Therefore, understanding how these interactions operate is required to design strategies to reduce or cope with the potential hydrological impacts of land-use and climate change.
openaire   +3 more sources

Forest Vegetation of the Colombian Orinoquia: Characterization and Spatial Distribution Across Environmental Gradients. [PDF]

Plants (Basel)
Niño L, Rangel O, Giraldo-Cañas D, Sánchez-Mata D, Minorta-Cely V.   +4 more
europepmc   +1 more source

Riverscape dynamics and habitat utilization structure evolutionary diversification in a clade of Amazonian electric fishes. [PDF]

Sci Rep
Allen JG, Tagliacollo VA, Albert JS.
europepmc   +1 more source

Wide-swath altimetry maps bank shapes and storage changes in global rivers. [PDF]

Nature
Cerbelaud A, Wade J, David CH, Durand M, Frasson RPM, Pavelsky T, Oubanas H.   +6 more
europepmc   +1 more source

Genomic insights into population structure and adaptive variation of Pimelodus yuma and Pimelodus grosskopfii in the Magdalena-Cauca Basin. [PDF]

PLoS One
Arcila HEI, Caro JAS, Márquez EJ, Martinez JG.   +3 more
europepmc   +1 more source

Exceptional concentration of fish diversity in Yasuní National Park, Ecuador (Napo River Basin). [PDF]

Biodivers Data J
Escobar-Camacho D, Valdiviezo-Rivera J, Carrillo-Moreno C, Argüello P, Swing K.   +4 more
europepmc   +1 more source