A5027587814- Tree-ring climate responses
- Plant Water Relations and Carbon Dynamics
- Ecology and Vegetation Dynamics Studies
- Climate variability and models
- Forest ecology and management
- Geology and Paleoclimatology Research
- Plant and soil sciences
- Plant Taxonomy and Phylogenetics
- Animal Ecology and Behavior Studies
- Tree Root and Stability Studies
- Hydrology and Drought Analysis
- Scarabaeidae Beetle Taxonomy and Biogeography
- Landslides and related hazards
- Sesquiterpenes and Asteraceae Studies
- Environmental and Ecological Studies
- Plant and animal studies
- Plant Toxicity and Pharmacological Properties
- Essential Oils and Antimicrobial Activity
- Mediterranean and Iberian flora and fauna
- Agroforestry and silvopastoral systems
- Waste Management and Recycling
- Hydrology and Watershed Management Studies
- Power Systems Fault Detection
- Agriculture and Social Issues
- Lightning and Electromagnetic Phenomena
Consejo Nacional de Investigaciones Científicas y Técnicas
1970-2024
National University of San Juan
2013-2024
Centro Científico Tecnológico - San Juan
2014-2023
National University of Mar del Plata
2008-2020
Centro Científico Tecnológico - Mendoza
2012-2017
Instituto de Química del Noroeste Argentino
2017
National Agricultural Technology Institute
2013
Badan Penelitian dan Pengembangan Kesehatan
1989-1990
Significant gaps remain in understanding the response of plant reproduction to environmental change. This is partly because measuring long-lived plants requires direct observation over many years and such datasets have rarely been made publicly available. Here we introduce MASTREE+, a data set that collates reproductive time-series from across globe makes these freely available community. MASTREE+ includes 73,828 georeferenced observations annual (e.g. seed fruit counts) perennial...
Abstract Over the past two decades, more frequent and intense climate events have seriously threatened operation of water transfer projects in Pacific Rim region. However, role climatic change driving runoff variations source areas these is unclear. We used tree-ring data to reconstruct changes Hanjiang River since 1580 CE representing an important area for China’s south-north project. Comparisons with hydroclimatic reconstructions southwestern United States central Chile indicated that...
Background: At different cambial ages, trees experience changes in their structure and interactions with environmental conditions. Reciprocal mechanisms between tree age physical resources, photosynthetic rates, xylem production may influence hydraulic resistance plant water stress. However, it is yet uncertain how these are associated growth sensitivity to biophysical drivers, especially climate.Aim: To establish age-associated climate – relationships rings of Araucaria araucana from the...
The carbon isotope composition (δ13C) in tree rings were used to derive the intrinsic water-use efficiency (iWUE) of Araucaria araucana trees northern Patagonia along a strong precipitation gradient. It is well known that climatic and ontogenetic factors affect growth performance this species but little about their influence physiological responses, as iWUE. Thus, main objective study was assess reactions young adult from two open xeric moderately dense mesic A. forests increases atmospheric...
Mexico has an abundance of Pinus species with P. cooperi as a dominant tree great ecological importance. In this study, we compared the climate sensitivity trees two age classes growing in Sierra Madre Occidental: younger (< 80 years) and older (≥ trees. A regional curve standardization (RCS) growth ring width was developed for these classes. Our statistical analysis showed that annual similar between absolute values tree-ring widths. However, found effects rising temperatures during...
Araucaria araucana is a dioecious evergreen conifer endemic from temperate forests of south Argentina and Chile. It long-lived species (maximum age > 1000 years), it presents high potential for tree-ring based climate reconstructions. However, the species' habit can result in distinct sex-specific growth patterns, which introduce novel challenges interpretation chronology variations. We used network 10 chronologies northwest Patagonia (Argentina) to analyze patterns A. and, first time,...
Forests play an important role in water and carbon cycles semiarid regions such as the Mediterranean ecosystems. Previous research Chilean forests revealed a break point 1980 regional tree-ring chronologies linked to climate change. However, it is still unclear which populations age classes are more affected by recent increases drought conditions. In this study, we investigated influence of variations precipitation, temperature, CO2 concentrations on tree growth various Nothofagus macrocarpa...
El bosque de Araucaria araucana ("pewén" en lengua Mapuche), con sus especies asociadas del género Nothofagus, es singular desde el punto vista evolutivo, biológico y sociocultural. Por la interdependencia pueblo Mapuche-Pewenche, se lo considera un ecosistema biocultural. Este trabajo una revisión integral binacional información científica actualizada aplicable a su gestión conservación. La comunidad avanzó significativamente conocimiento de: a) interrelación significancia biocultural; b)...
The antibacterial and insect-repellent activities of the essential oils (EOs) from Argentinian medicinal plants Azorella trifurcata (Gaertn.) Pers., Senecio cfr. oreophyton J. Remy pogonias Cabrera, were investigated. All EOs showed good repellent properties against Triatoma infestans Klug, vector Chagas disease, with percent repellence values between 60% 70% at 24 h compared positive control N-N diethyl-m-methylbenzamide (DEET) moderate activity bacteria tested minimum inhibitory...
Abstract Background Recent changes in climatic trends are resulting an increased frequency and intensity of extreme events, with unknown effect on ecosystem dynamics the near future. Extreme drought episodes recognized as disturbance factors capable modifying forest tree growth. Within this context, dioecious species may be impacted by extremes, affecting male/female proportions and, consequently, reproductive processes persistence. Therefore, there is urgent need for species-specific...
Abstract Soil moisture (SM) is a crucial factor in the water cycle, sustaining ecosystems and influencing local climate patterns by regulating energy balance between soil atmosphere. Due to absence of long-term, in-situ measurements SM, studies utilizing satellite-based data tree-ring analysis have become valuable assessing variations SM at regional multi-century scales, as well determining its effects on tree growth. This information particularly pertinent biodiversity hotspots made up...
The essential oil of the aerial parts Baccharis grisebachii was examined by GC and GC-MS evaluated for its antimicrobial properties. Forty three constituents were identified representing 94.3% total. Thymol, thymol methyl ether, thymyl acetate, alpha pinene, humulene, globulol found to be major components. showed MIC values < 250 μg/mL against Cryptococcus neoformans (125 μg/mL), Aspergillus spp. particulary Trichophyton mentagrophytes T. rubrum (62.5 μg/mL)