Results 21 to 30 of about 4,650,271 (283)

Historical Assembly of Andean Tree Communities

open access: yesPlants, 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   +23 more
openaire   +4 more sources

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

open access: yes, 2018
Tropical ecosystems play a key role in many aspects of Earth system dynamics currently of global concern, including carbon sequestration and biodiversity.
Absy   +75 more
core   +12 more sources

Impacts of Free-Ranging Dogs on a Community of Vertebrate Scavengers in a High Andean Ecosystem

open access: yesTropical Conservation Science, 2023
Background and Research Aims Native vertebrate scavenger communities may be affected by free-ranging dogs (Canis lupus familiaris), but little information is available on this subject.
Henry Paul Monar-Barragán   +5 more
semanticscholar   +1 more source

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

open access: yesEconomía, 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

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

open access: yesRevista 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   +5 more
doaj   +1 more source

A holistic approach to enhance the use of neglected and underutilized species: the case of Andean grains in Bolivia and Peru [PDF]

open access: yes, 2014
The IFAD-NUS project, implemented over the course of a decade in two phases, represents the first UN-supported global effort on neglected and underutilized species (NUS).
Amaya, K.   +5 more
core   +2 more sources

Fish community turnover in a dammed Andean River over time

open access: yesNeotropical Ichthyology, 2022
We describe the change in the fish community of the Porce River in Magdalena River Basin, Colombia, following the construction of the Porce III hydropower reservoir based on 13 years of monitoring data. The results show a clear reduction of the number of
Daniel Valencia‐Rodríguez   +5 more
semanticscholar   +1 more source

"Now he walks and walks, as if he didn't have a home where he could eat": food, healing, and hunger in Quechua narratives of madness [PDF]

open access: yes, 2013
In the Quechua-speaking peasant communities of southern Peru, mental disorder is understood less as individualized pathology and more as a disturbance in family and social relationships. For many Andeans, food and feeding are ontologically fundamental to
A Topor   +40 more
core   +1 more source

Turnover-driven loss of forest-dependent species changes avian species richness, functional diversity, and community composition in Andean forest fragments

open access: yesGlobal Ecology and Conservation, 2021
Andean forests, a hotspot of biodiversity, have suffered extensive fragmentation, yet we have little understanding of how this process has affected biodiversity.
H. H. Jones   +3 more
semanticscholar   +1 more source

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

open access: yesPoliteja, 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

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