Phylogenomics, ecomorphological evolution, and historical biogeography in Deuterocohnia (Bromeliaceae: Pitcairnioideae). [PDF]
Am J BotAbstract Premise Species of Deuterocohnia (17 spp.) show extraordinary variation in elevation (0–3900 m a.s.l.) and growth forms, and many have narrow geographic distributions in the west‐central Andes and the Peru‐Chile coast. Previous research using few plastid and nuclear loci failed to produce well‐resolved or supported phylogenies.
Li B +5 more
europepmc +2 more sources
Environmental Impact of Silicic Magmatism in Large Igneous Province Events
Geophysical Monograph Series, Page 133-151., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Scott E. Bryan
wiley +1 more source
Vegetation of Andean wetlands (bofedales) in Huascarán National Park, Peru [PDF]
Mires and Peat, 2019 Hybrid terrestrial-aquatic ecosystems in the Andes, commonly known as bofedales, consist of both peatlands and wet meadows and line valley floors at elevations > 3800 m.
M.H. Polk, K.R. Young, A. Cano, B. León
doaj +1 more source
Puestos de altura de la Puna argentina: zooarqueología de Real Grande 1 y 6 y Alero Tomayoc
Revista del Museo de Antropologia, 2009 The societies from the Late Period in the Argentinean Puna introduced considerable technical improvements and an increase in agricultural production, in relationship with a process of change towards a greater sociopolitical complexity.
Daniel E. Olivera 1, Jennifer L. Grant
doaj +5 more sources
Zooarqueología y análisis de isótopos estables en un contexto pastoril
Estudios Atacameños, 2021 El objetivo de este trabajo consiste en estudiar y discutir las estrategias de explotación de camélidos sudamericanos empleadas por los ocupantes del sitio arqueológico Cueva Chayal (departamento de Susques, provincia de Jujuy, Argentina) durante el ...
Celeste Samec, Hugo Yacobaccio
doaj +1 more source
Agrostis meyenii Trin. (Poaceae, Agrostidinae): first records from Peru, including taxonomic notes and an identification key [PDF]
Check List, 2020 The grass Agrostis meyenii Trin. (Poaceae, Agrostidinae) is newly recorded from Peru and is found in high-Andean puna grasslands of the departments of Ancash, Ayacucho, and Huánuco, marking the northernmost known limit of this species.
Steven P. Sylvester +1 more
doaj +3 more sources
Modelling GNSS-observed seasonal velocity changes of the Ross Ice Shelf, Antarctica, using the Ice-sheet and Sea-level System Model (ISSM) [PDF]
The CryosphereThe flow speeds of floating ice shelves around the Antarctic Ice Sheet exhibit clear intra-annual variability. However, the drivers of this variability remain poorly understood.
F. Baldacchino +12 more
doaj +1 more source
Vog: Using Volcanic Eruptions to Estimate the Health Costs of Particulates
The Economic Journal, EarlyView., 2018 The negative consequences of long‐term exposure to particulate pollution are well established but a number of studies find no effect of short‐term exposure on health outcomes. The high correlation of industrial pollutants complicates the estimation of the impact of individual pollutants on health.
Timothy J. Halliday +2 more
wiley +1 more source
Negotiating Discourses: A Pākehā Teacher Educator’s Exploration of Bicultural Teaching Practice
New Zealand Journal of Teachers' Work, 2014 Bicultural teaching practice in Aotearoa New Zealand is based on commitment to partnerships reflecting Te Tiriti o Waitangi/ The Treaty of Waitangi between Māori and non-Māori cultures, and is governed by professional standards and documents.
Alison Warren
doaj +1 more source
Geología y Metalogenia de la Puna
Estudios Geologicos, 1987 En este trabajo se puntualizan una serie de conceptos sobre las relaciones existentes entre evolución geológica y metalogénesis de la Puna. El análisis de la sedimentación, magmatismo y metamorfismo de la provincia geológica Puna, permite diferenciarla ...
R. N. Alonso, J. G. Viramonte
doaj +1 more source