A5031888967- Wildlife Ecology and Conservation
- Pleistocene-Era Hominins and Archaeology
- Archaeology and ancient environmental studies
- Avian ecology and behavior
- Wildlife-Road Interactions and Conservation
- Archaeological and Geological Studies
- Geology and Paleoclimatology Research
- Cryospheric studies and observations
- Indigenous Studies and Ecology
- Geochemistry and Elemental Analysis
- Clay minerals and soil interactions
- Agroforestry and silvopastoral systems
- Forensic Anthropology and Bioarchaeology Studies
- Cephalopods and Marine Biology
- Atmospheric and Environmental Gas Dynamics
- Diaspora, migration, transnational identity
- Embodied and Extended Cognition
- Archaeology and Cultural Heritage
- Turtle Biology and Conservation
- Geochemistry and Geologic Mapping
- Cultural and Social Studies in Latin America
- Educational theories and practices
- Flood Risk Assessment and Management
- Coal and Its By-products
- Latin American socio-political dynamics
Brown University
2023-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2005-2023
John Brown University
2023
Pontificia Universidad Católica de Chile
2018
Urbana University
2018
National Agricultural Technology Institute
2016-2018
Instituto Nacional de Tecnologia
2016
Universidad Nacional de Córdoba
2006-2015
Pontifical Catholic University of Peru
2011
Centro Científico Tecnológico - Tucumán
2006
Abstract Rock weathering impacts atmospheric CO 2 levels with silicate rock dissolution removing 2, and carbonate dissolution, pyrite oxidation, organic carbon oxidation producing . Glacierization the hydrology geomorphology of catchments glacier retreat due to warming can increase runoff initiate landscape succession. To investigate impact these changes on catchment scale balances, we report monthly samples solute chemistry continuous discharge records for a sequence glacierized watersheds...
Abstract High latitude regions across the globe are undergoing severe modifications due to changing climate. A high region of concern is Gulf Alaska (GoA), where these changes in hydroclimate undoubtedly affect hydrogeochemistry freshwater discharging nearshore ecosystems region. To fill knowledge gap our understanding stream geochemistry with GoA, we compile water chemistry data from 162 sites With an inverse model, estimate fractional contributions solute fluxes weathering silicate,...
The Upland Goose (Chloephaga picta picta) is a migratory species of South America, which breeds from September to April in Patagonia (Argentina and Chile) winters May the southern Pampas (Argentina). Despite some protection both countries, this still persecuted large numbers are killed by unregulated hunting. Therefore, precise knowledge their routes vital ensure necessary resources sites throughout year. We deployed five miniaturised satellite transmitters on adult Geese gather data about...
El análisis de dos conjuntos zooarqueológicos
Detailed knowledge of the migratory strategies is important to understand ecology and evolution migration conservation birds The Argentinean federal government declared sheldgeese (Chloephaga spp.) pests in 1930, claiming that they reduce crop yield. Currently have suffered severe reductions their populations are focus serious concern. From September April breed southern Patagonia (Argentina Chile) while from May winter mainly Pampas (central east Argentina). precise routes essential ensure...
Abstract Avulsions change river courses and transport water sediment to new channels impacting infrastructure, floodplain evolution, ecosystems. Abrupt avulsion events (occurring over days weeks) are potentially catastrophic society thus receive more attention than slow avulsions, which develop decades centuries can be challenging identify. Here, we examine gradual channel changes of the Peace‐Athabasca River Delta (PAD), Canada using in situ measurements 37 years Landsat satellite imagery....
Sheldgeese [Upland Goose (Chloephaga picta picta), Ashy-headed (C. poliocephala) and Ruddyheaded rubidiceps)] have similar migratory patterns, breeding in Patagonia (Argentina Chile) wintering mainly the southern Pampas, Argentina. All of them are species conservation concern The objective this study was to estimate densities using distance sampling calculate population sizes over three categories habitat quality southeast Buenos Aires Province, Road surveys (9,200 km) were performed from a...
Summary Ruddy-headed Goose Chloephaga rubidiceps is the smallest of five South American sheldgeese and has two separate populations: one sedentary, which resides in Malvinas/Falkland Islands migratory that overwinters mainly Pampas region, Argentina breeds Southern Patagonia. The Goose’s continental population decreased considerably, recent estimates indicated size less than 800 individuals. In Chile, this categorised as endangered. Understanding migration across vast landscapes essential...
This paper deals with human populations in insular environments. The archaeology of the southern end American continent comprises a particularly relevant study this regard, as it consists an archipelago land-bridge islands varying characteristics, where Isla Grande de Tierra del Fuego is largest. In paper, biogeographical perspective applied to review current knowledge human-animal relationships Patagonia, and different levels at which insularisation would have been important...
Hoy, las politicas de vivienda en Chile requieren articularse con el desafio urbano construir ciudades mas justas e integradas. Para ello, se debe cambiar la logica pensar desde uso suelo periferico (vacio y barato), pues no es sustentable; ademas, Santiago ya queda terreno libre para social. Se debe avanzar, mediante procesos crecimiento hacia dentro a escala media, reciclando urbano sin expulsar sus residentes e integrando logicas organizacion familiar. En este articulo presentan los...
In this paper, the taphonomic investigations within Argentinean archaeology are analyzed for 1990-2010 period. A bibliographic survey has been carried out of main national scholarly periodical publications and proceedings conferences. The aim study is to assess degree which zooarchaeological papers have incorporated taphonomy, whether it via application or generation principles, results interpreted in terms bias other interpretations provided that include so-called positive contributions...
There are two main technologies commercially available to write photomasks: Raster Scanning and Variable Shape Beam (VSB). For masks with features sizes that can be written on either kind of machine, it is advantageous estimate the time both kinds machines. The machine expected have a faster Turn Around Time could chosen. It trivial how much design would take by using machine. Since this scans whole area, its TAT depends mainly size pixel. therefore mostly independent number figures...