Results 21 to 30 of about 575 (131)
Integrated Environmental Assessment and Management, 2022 Abstract Gold mining (GM) is a major source of metals and metalloids in rivers, causing severe environmental pollution and increasing the exposure risks to the residents of surrounding areas. Mining in Ecuadorian Amazonia has dramatically increased in recent years, but its impacts on Indigenous local populations that make use of rivers ...
Emily Galarza +6 more
openaire +3 more sources
A third species of glassfrog in the genus Chimerella (Anura, Centrolenidae) from central Peru, discovered by an integrative taxonomic approach [PDF]
Evolutionary Systematics, 2023 We studied the taxonomic status of glassfrogs collected in Departamento Huánuco, central Peru, which in the field were tentatively allocated to Chimerella, one of the twelve genera currently recognized in the family Centrolenidae.
Jörn Köhler +5 more
doaj +3 more sources
Paleopalynology in Colombia: a review
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2023 Palynology is an important tool for establishing age and interpreting paleoenvironments in both continental and marine deposits. This paper provides a summarized overview of the palynological information published for deposits in Colombia ranging from ...
Angelo Plata Torres +3 more
doaj +1 more source
PLoS ONE, 2022 To date, more than 2400 valid fish species have been recorded in the Amazon basin. However, some regions remain poorly documented. This is the case in the Beni basin and in particular in one of its main sub-basins, the Tuichi, an Andean foothills rivers ...
Cédric Mariac +9 more
doaj +3 more sources
Environmental Research Letters, 2023 Andean vegetation and agriculture depend on the patterns of rainfall during the South American monsoon. However, our understanding on the importance of dynamic (upper-level wind circulation) as compared to thermodynamic (Amazon basin moisture) drivers ...
Cornelia Klein +5 more
doaj +1 more source
Sediment budget in the Ucayali River basin, an Andean tributary of the Amazon River [PDF]
Proceedings of the International Association of Hydrological Sciences, 2015 Formation of mountain ranges results from complex coupling between lithospheric deformation, mechanisms linked to subduction and surface processes: weathering, erosion, and climate. Today, erosion of the eastern Andean cordillera and sub-Andean foothills
W. Santini +16 more
doaj +1 more source
La "gente de la lengua del inga" en el piedemonte amazónico colombiano
Maguaré, 2006 El presente artículo trata del uso del quechua entre las poblaciones in- dígenas del piedemonte amazónico colombiano, en especial en los pueblos de habla inga en el valle de Sibundoy y en la jurisdic- ción de Ágreda o Mocoa: Yunguillo, Condagua y Puerto ...
Augusto Javier Gómez López
doaj +4 more sources
First records of the Rufous-headed woodpecker (Celeus spectabilis: Picidae) in Colombia
Acta Biológica Colombiana, 2016 We present the first records of the Rufous-headed Woodpecker (Celeus spectabilis) for Colombia, based upon a two adults photographed in southeastern Cauca Department, which extend the known range of the species by more than 170 km.
Diego Carantón Ayala +2 more
doaj +1 more source
Lexically driven patterns of contact in alignment systems of languages of the northern Upper Amazon
Open Linguistics, 2023 Despite ample attention in the literature for alignment patterns and case frames more generally, we know very little about how these elements of grammar spread from one language to another in a contact situation.
van Gijn Rik +5 more
doaj +1 more source
Mammalogy Notes, 2015 The Andean-Amazon foothills represent a biodiversity hotspot in southern Colombia (Kattan et al. 2004, Bass et al. 2010) but deforestation in the region is occurring at an alarming rate (Hernández et al.
Pablo Jose Negret +2 more
doaj +1 more source