A5084831933- Geology and Paleoclimatology Research
- Pleistocene-Era Hominins and Archaeology
- Archaeology and ancient environmental studies
- Tree-ring climate responses
- Archaeological and Geological Studies
- Cryospheric studies and observations
- Climate change and permafrost
- Aeolian processes and effects
- Geological formations and processes
- Winter Sports Injuries and Performance
- Invertebrate Taxonomy and Ecology
- Evolution and Paleontology Studies
- Archaeology and Cultural Heritage
- Archaeological and Historical Studies
- Ecology and Vegetation Dynamics Studies
- Lichen and fungal ecology
- Environmental and Ecological Studies
- Fire effects on ecosystems
Consejo Nacional de Investigaciones Científicas y Técnicas
2011-2023
National University of Mar del Plata
2011-2023
Institute of Marine and Coastal Research
2015-2023
Fundación Ciencias Exactas y Naturales
2011-2023
Continental (United States)
2018
National University of General San Martín
2018
Centro Científico Tecnológico - San Juan
2017
Ecosystem fire regimes are a consequence of interactions among fuels and climate. The reconstruction past is great importance for studying climate changes controls. aim this study to compare two charcoal pollen records from the Nothofagus forest-grass steppe ecotone (50°S) grass (49°S). We regime responses local vegetation changes, inferred variation on conditions between 49° 52°S during Holocene. Cerro Frías La Tercera seem be sensitive centennial millennial timescales variability southern...
En la provincia de Santa Cruz fueron realizados diversos estudios paleoambientales relacionados con gradientes ambientales a partir distintos tipos depósitos.Los registros fósiles cuevas y aleros (depósitos importantes para reconstrucción los ambientes del pasado en zonas extra-andinas) son el resultado interacciones ambientales, climáticas culturales que deben ser tenidas cuenta realizar reconstrucciones vegetación e inferir condiciones ambientales.Para este trabajo se analizaron dos...
Abstract. The Southern Hemisphere Westerly Winds (SWW) constitute an important zonal circulation system that dominates the dynamics of mid-latitude climate. Little is known about climatic changes in South America comparison to Northern due low density proxy records, and adequate chronology sampling resolution address environmental last 2000 years. Since 2009, new pollen charcoal records from bog lakes northern southern Patagonia at east side Andes have been published with calibration...
Paleoecological studies in Patagonia provide information about vegetation and climate changes occurred during the Holocene. The climatic evolution of this region offers a unique opportunity to study environmental variability as well ecosystem variations. dynamic forest ecosystems is modulated by occurrence disturbances. Fires are one most important disturbances temperate ecosystems, its allows contrasting independently experienced ecosystems. In addition, Patagonia, postglacial have been...
Resumen.En este trabajo se discuten los diferentes aspectos metodológicos a tener en cuenta estudios paleoecológicos.Las consideraciones teóricas y metodológicas discutidas incluyen siguientes aspectos: tipos de depósitos, procesos tafonómicos, representación polínica actual partir muestras sedimento registro la vegetación, suma representativa composición comunidad vegetal, productividad diferencial dispersión taxones su espacial, precisión taxonómica comparación con vegetación cada área,...
Resumen.La palinología de sitios arqueológicos o arqueopalinología ha sido frecuentemente utilizada en la Argentina tanto para reconstruir vegetación y los ambientes desde el final del Pleistoceno Tardío hasta tiempos recientes, como inferir ciertas actividades culturales desarrolladas dentro arqueológicos.En presente trabajo se realizó una revisión análisis polínicos realizados a partir depósitos sedimentarios cuevas, aleros contextos abiertos correspondientes sociedades...
Los sitios arqueológicos presentes en Santa Cruz han brindado importante información sobre los cambios de la vegetación y del clima diferentes escalas espaciales temporales. En este trabajo presentamos ejemplos metodológicos para analizar datos polínicos actuales registro fósil cuatro secuencias arqueológicas (CMN1 COCU a 47°S; 71°O B1Oq CPD 49°S; 72°O) ubicadas al oeste Cruz. A partir estos resultados se discuten alcances límites interpretativos utilizados. Nuestros indican que análisis...
Patagonian shrub and ecotonal communities were sensitive to past environmental changes thus may also be affected by future ones. Therefore, their paleoecological study constitutes a valuable tool understand the way in which these plant respond forcings responsible for variability. The aim of this paper is reconstruct vegetation dynamics Pueyrredón Lake area (47°25′55′′ S; 72°0.7′7′′ W) last 3000 cal yr BP contextualize regional paleoclimatic framework. results indicate that at beginning 2900...
Fil: Marcos, Maria Alejandra. Universidad Nacional de Mar del Plata. Facultad Ciencias Exactas y Naturales. Departamento Biologia. Laboratorio Paleoecologia Palinologia; Argentina. Consejo Investigaciones Cientificas Tecnicas. Centro Cientifico Tecnologico Conicet - Instituto Marinas Costeras. Costeras; Argentina
In this research, we reconstruct the paleoenvironmental conditions from a sedimentary record of wetland (mallín) located in Patagonian steppe near to Subantarctic forest on northeastern shore San Martín Lake basin (SW Santa Cruz, Patagonia, Argentina). The Mallín Ñire (49° 00’ 23.5” S; 72° 13’ 34.5” W) presents basal age 10,200 cal. years BP and its pollen content, carbon isotopes, stratigraphy were analyzed. relationship with modern assemblages surface sediment samples allows us interpret...