Results 31 to 40 of about 565 (129)

First preliminary inventory of Non-Flying Mammals of the Alto Fragua Indi-Wasi National Park, Colombia

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, Oscar Garzón, Pablo Stevenson   +2 more
doaj   +1 more source

Territorios prehispánicos en las regiones interfluviales, norte de la Amazonía del Ecuador

Bulletin de l'Institut Français d'Études Andines, 2014
New archaeological evidence from the northern interfluvial regions of the Ecuadorian Amazon suggests a sequence of occupation by different ceramic traditions starting in the Regional Development Period. Only two sites are related to the Formative Period,
A. Jorge Arellano
doaj   +1 more source

High Spatial Resolution Ensemble Species Distribution Modeling of <i>Rhodnius prolixus</i>, Vector of Chagas Disease, in Western Venezuela. [PDF]

Geohealth
Abstract Rhodnius prolixus is the most common and abundant kissing bug found in Royal and other native palms from western Venezuela. R. prolixus is a dominant vector of Trypanosoma cruzi, the parasite causing Chagas disease. Here we use species distribution models (SDMs) to estimate habitat suitability for R. prolixus.
Gao Y, Añez N, Chaves LF.
europepmc   +2 more sources

Combined CO₂ measurement record indicates Amazon forest carbon uptake is offset by savanna carbon release [PDF]

Atmospheric Chemistry and Physics
In tropical South America there has been substantial progress in atmospheric monitoring capacity, but the region still has a limited number of continental atmospheric stations relative to its large area, hindering net carbon flux estimates using ...
S. Botía, S. Munassar, T. Koch, D. Custodio, L. S. Basso, S. Komiya, J. V. Lavric, D. Walter, M. Gloor, G. Martins, S. Naus, G. Koren, I. T. Luijkx, S. Hantson, J. B. Miller, W. Peters, W. Peters, C. Rödenbeck, C. Gerbig   +18 more
doaj   +1 more source

Visualization of urban floodplains in the Amazon foothill using the geo-inspired model of natural vector multi-agents (AVNG)

Revista Facultad de Ingeniería, 2017
In the specialized literature, there are different ways to calculate and display flooded areas by geographical entities (rivers or streams), using mathematical and physical models in 1D and 2D areas; also, the use of tools such as Geographic Information ...
Edwin Eduardo Millán-Rojas, José Nelson Pérez-Castillo, Adriana Patricia Gallego Torres   +2 more
doaj   +1 more source

Hydroponic and organoponic green forage of corn as a nutritional supplement for sheep in the Amazon Foothills

, 2021
Contextualization: Ruminants have a comparative advantage over other species, because their ability to digest the fiber fractions present in forages.   Knowledge gap: In tropical regions, due to changing environmental conditions, it is more difficult to produce pastures of high nutritional quality, resulting in forage seasonality that leads to ...
Narvaez Herrera, Juan Pablo, Guerrero Guerrero, Elizabeth Marcela   +1 more
openaire   +1 more source

Fish species composition reflects geomorphology in the Western Amazon, the Earth's vertebrate biodiversity hotspot [PDF]

Frontiers of Biogeography
Fishes of the Western Amazon exhibit the greatest diversity of any continental vertebrate fauna on Earth. Hypotheses to explain diversity patterns have focused on various ecological and evolutionary processes, yet we have historically lacked detailed ...
Juan D. Bogotá-Gregory, Carlos DoNascimiento, Flávio C. T. Lima, Sandra B. Correa, Leo Ohyama, Astrid Acosta-Santos, Edwin Agudelo Córdoba, David G. Jenkins, James S. Albert   +8 more
doaj   +3 more sources

Spatiotemporal Evolution of Hydroclimatic Variables in the Brazilian Semi‐Arid Region Through the Aridity Index and Susceptibility to Desertification

International Journal of Climatology, EarlyView.
Over the past 60 years, noticeable changes have been observed in the main hydroclimatological variables, driven by both natural and anthropogenic factors. In the context of climate change, such behaviour may adversely affect the state's economic activities, as well as increase the recurrence of extreme events in the region.
Ronaldo Guilherme Santos Lima, Izaias Rodrigues de Souza Neto, André Quintão de Almeida, Vania Elisabete Schneider, Ludmilson Abritta Mendes   +4 more
wiley   +1 more source

Seismicity in colombian llanos foothills: Characterization, relocation and local seismic tomography

Boletín de Ciencias de la Tierra, 2015
An earthquake relocation by seismic simultaneous inversion and double differences methods were done in the Colombian Llanos Foothills from 3º to 5ºN and from 73º to 75ºW.
Francisco Javier Muñoz-Burbano, Carlos Alberto Vargas-Jiménez, German Chicangana   +2 more
doaj   +1 more source

Cybianthus anthuriophyllus (Primulaceae), a new record for the flora of Colombia: distribution modeling and conservation assessment

Nordic Journal of Botany, EarlyView.
Cybianthus anthuriophyllus (Primulaceae) was previously known from eastern Ecuador and northern Peru. Here we document the first confirmed occurrences of this species in Colombia and develop a distribution model based on collections from the Andean–Amazonian foothills of Caquetá, Cauca, and Putumayo departments, in order to clarify its conservation ...
David Hoyos, Juan Sebastián Moreno, Jorge Luis Contreras, Edwin Trujillo‐ Trujillo, David Sanín   +4 more
wiley   +1 more source