Results 11 to 20 of about 66,376 (261)

Aquatic bird communities in Andean lakes of Ecuador are increasingly dissimilar over time

Ecological Indicators, 2021
Andean lakes are important for human well-being and biodiversity conservation, yet human-induced environmental changes threaten their biodiversity and the ecosystem services they provide.
Esteban A. Guevara, Tatiana Santander G., Rodrigo Espinosa, Catherine H. Graham   +3 more
doaj   +1 more source

Epilepsy and neurocysticercosis in an Andean community [PDF]

International Journal of Epidemiology, 1999
Taenia solium neurocysticercosis (NCC) has been documented as one of the major causes of epilepsy in developing countries. However, methodological limitations have hindered the evaluation of the epidemiological relationship between cysticercosis and epilepsy at the community level.We used the WHO protocol for epidemiological evaluation of neurological ...
M E, Cruz, P M, Schantz, I, Cruz, P, Espinosa, P M, Preux, A, Cruz, W, Benitez, V C, Tsang, J, Fermoso, M, Dumas   +9 more
openaire   +2 more sources

Spatial structure and composition of invertebrates in high altitude rivers of the central Andes (Olaroz Salar, Argentina) [PDF]

Anais da Academia Brasileira de Ciências, 2023
This study aimed to examine the spatial variation in sets of micro and macroinvertebrates and to detect how physicochemical and environmental variables affect community structures in high Andean rivers.
MARCELA A. DE PAUL, JUAN P. VILLAFAÑE
doaj   +1 more source

Historical Assembly of Andean Tree Communities

Plants, 2023
Patterns of species diversity have been associated with changes in climate across latitude and elevation. However, the ecological and evolutionary mechanisms underlying these relationships are still actively debated. Here, we present a complementary view of the well-known tropical niche conservatism (TNC) hypothesis, termed the multiple zones of origin
Sebastián González-Caro, J. Sebastián Tello, Jonathan A. Myers, Kenneth Feeley, Cecilia Blundo, Marco Calderón-Loor, Julieta Carilla, Leslie Cayola, Francisco Cuesta, William Farfán, Alfredo F. Fuentes, Karina Garcia-Cabrera, Ricardo Grau, Álvaro Idarraga, M. Isabel Loza, Yadvinder Malhi, Agustina Malizia, Lucio Malizia, Oriana Osinaga-Acosta, Esteban Pinto, Norma Salinas, Miles Silman, Andrea Terán-Valdéz, Álvaro Duque   +23 more
openaire   +4 more sources

Do preferential trade agreements favor the liberalization of trade with non-members? The case of the Andean Community

Economía, 2021
The theoretical literature has not reached a consensus on the effect of PTAs on multilateral liberalization. Empirical studies on this topic have been limited and, like theoretical studies, their results vary.
Lakshmi Isabel Castillo Thorne
doaj   +1 more source

Long-Term Vegetation Dynamics in a Megadiverse Hotspot: The Ice-Age Record of a Pre-montane Forest of Central Ecuador. [PDF]

, 2018
Tropical ecosystems play a key role in many aspects of Earth system dynamics currently of global concern, including carbon sequestration and biodiversity.
Absy, Alley, Aspden, Bennett, Bernal, Bernal, Blaauw, Bush, Bush, Bush, Bush, Bush, Bush, Bush, Bush, Clark, Colinvaux, Colinvaux, Colinvaux, Colinvaux, Coplen, Correa-Metrio, Cox, Cárdenas, Cárdenas, Cárdenas, Davis, de Berc, Deplazes, Faegri, Ferdon, Finsinger, Flantua, Flantua, Gentry, Gosling, Haberle, Haffer, Hall, Harling, Haug, Heine, Hijmans, Hill, Hogg, Jacobson, Juggins, Jørgensen, Keen, Liu, Livingstone, Lombardo, Lombardo, Loughlin, Luzuriaga, Malhi, Matthews-Bird, Meyers, Mosblech, Myers, Oksanen, Puyasena, Roubik, Rull, Sierra, Stocker, Stockmarr, Urrego, Urrego, van der Hammen, van’t Veer, Von Post, Whitlock, Whitney, Whittaker, Williams   +75 more
core   +12 more sources

Benthic macroinvertebrate communities and water quality assessment in high Andean Wetlands Callali-Oscollo, Arequipa-Cusco, Peru

Revista Mexicana de Biodiversidad, 2023
High Andean wetlands are fragile systems, vulnerable to human activity and climate change. In the Arequipa region (Peru), there are high Andean lotic and lentic systems currently affected by livestock raising, fish farming, and dams.
Pastor Coayla-Peñaloza, André Alexander Chenaux-Díaz, Claudia Viviana Moreno-Salazar, Cynthia Elizabeth Cruz-Remache, Eusebio Walter Colque-Rondón, Cristina Damborenea   +5 more
doaj   +1 more source

Conservación de servicios ecosistémicos en humedales altoandinos: la participación social en la creación de un área natural protegida [PDF]

, 2017
The goal of the present work is synthesizing the process of collective construction developed to protect the high-altitude wetlands of the Blanco River basin, located in the Andes Mountains, Mendoza province.
Abraham, Elena Maria, Rubio, María Cecilia, Rubio, María Clara, Salomon, Mario   +3 more
core   +1 more source

High-Up: A Remote Reservoir of Microbial Extremophiles in Central Andean Wetlands [PDF]

, 2015
The Central Andes region displays unexplored ecosystems of shallow lakes and salt flats at mean altitudes of 3700 m. Being isolated and hostile, these so-called “High-Altitude Andean Lakes” (HAAL) are pristine and have been exposed to little human ...
Albarracín, Virginia Helena, Belfiore, Carolina, Farias, Maria Eugenia, Kurth, Daniel German, Luccini, Eduardo Alfredo, Ordoñez, Omar Federico, Piacentini, Ruben Dario Narciso, Salum, Graciela Marisa   +7 more
core   +3 more sources

Las políticas migratorias en la comunidad andina, un balance de su situación actual

Politeja, 2015
Migration policies in the Andean community, take stock of your current situation The new Latin American economic, political and social conditions as well as the greater weight of migration ininternational context make for the fact that it has become ...
Fernando Neira Orjuela
doaj   +1 more source