A5036811546- Tree-ring climate responses
- Plant Water Relations and Carbon Dynamics
- Fire effects on ecosystems
- Ecology and Vegetation Dynamics Studies
- Geology and Paleoclimatology Research
- Forest ecology and management
- Hydrology and Watershed Management Studies
- Climate variability and models
- Plant Taxonomy and Phylogenetics
- Conservation, Biodiversity, and Resource Management
- Forest Ecology and Biodiversity Studies
- Forest Management and Policy
- Environmental and Cultural Studies in Latin America and Beyond
- Soil erosion and sediment transport
- Hydrology and Sediment Transport Processes
- Flood Risk Assessment and Management
- Land Use and Ecosystem Services
- Botany, Ecology, and Taxonomy Studies
- Scarabaeidae Beetle Taxonomy and Biogeography
- Wildlife Ecology and Conservation
- Archaeology and Natural History
- Forest Insect Ecology and Management
- Peatlands and Wetlands Ecology
- Species Distribution and Climate Change
- Plant responses to elevated CO2
Austral University of Chile
2015-2024
Center for Climate and Resilience Research
2015-2024
University of Chile
2013-2023
Fundación Chile
2012-2023
Hospital La Luz
2020
Hospital Universitario Sanitas La Zarzuela
2020
Universidad Técnica de Ambato
2018
Clínica Santa María
2015
Universidad Santa María
2014
Universidad El Bosque
2011
Abstract. We introduce the first catchment dataset for large sample studies in Chile. This includes 516 catchments; it covers particularly wide latitude (17.8 to 55.0∘ S) and elevation (0 6993 m a.s.l.) ranges, relies on multiple data sources (including ground data, remote-sensed products reanalyses) characterise hydroclimatic conditions landscape of a region where situ measurements are scarce. For each catchment, provides boundaries, daily streamflow records basin-averaged time series...
Significance The SADA is an annually-resolved hydroclimate atlas in South America that spans the continent south of 12°S from 1400 to 2000 CE. Based on 286 tree ring records and instrumentally-based estimates soil moisture, complements six drought atlases worldwide filling a geographical gap Southern Hemisphere. Independently validated with historical records, shows frequency widespread severe droughts extreme pluvials since 1960s unprecedented. Major events expressed are associated strong...
ABSTRACT Aim Few studies have explicitly examined the influence of spatial attributes forest fragments when examining impacts fragmentation on woody species. The aim this study was to assess diverse habitats by integrating landscape‐level and species‐level approaches. Location investigation undertaken in temperate rain forests located southern Chile. This ecosystem is characterized high endemism intensive recent changes land use. Method Measures diversity, richness, species composition,...
A tree-ring width chronology of alerce trees (Fitzroya cupressoides) from southern Chile was used to produce an annually resolved 3622-year reconstruction departures mean summer temperatures (December March) for South America. The longest interval with above-average 80 B.C. A.D. 160. Long intervals below-average were recorded 300 470 and 1490 1700. Neither this proxy temperature record nor instrumental data America latitudes between 35 degrees 44 S provide evidence a warming trend during the...
Abstract. At ca. 40° S in northern Patagonia, Andean rain forests are replaced eastwards by woodlands and shrublands eventually steppe. Along this gradient we examined stand dynamics analyzing tree population age structures growth patterns. We also spatial temporal characteristics of disturbance regimes dating disturbances mapping stands differing history. From west to east, the ecological importance earthquake‐related decreases, whereas that fire, logging, livestock increases. Abrupt...
In order to evaluate the present distribution patterns of salmonids and their potential effects on native fish, we sampled 11 large lakes 105 streams, encompassing a total 13 main hydrographic watersheds southern Chile (39 o 52 S).Overall, trout (Salmo trutta Oncorhynchus mykiss) accounted for more than 60 % fish abundance 80 biomass, while 40 streams did not have fish.Salmon, introduced aquaculture, such as O. kisutch, Salmo salar, tshawytscha, were only in with salmon farming seem be...
Though tree-ring chronologies are annually resolved, their dating has never been independently validated at the global scale. Moreover, it is unknown if atmospheric radiocarbon enrichment events of cosmogenic origin leave spatiotemporally consistent fingerprints. Here we measure 14C content in 484 individual tree rings formed periods 770-780 and 990-1000 CE. Distinct excursions starting boreal summer 774 spring 993 ensure precise 44 records from five continents. We also identify a meridional...
Abstract This paper evaluates the relationship between fire occurrence (number and burned area) climate variability (precipitation maximum temperatures) across central south‐central Chile (32°–43° S) during recent decades (1976–2013). region sustains largest proportion of Chilean population, contains ecologically important remnants endemic ecosystems, extension forest exotic plantations, concentrates most activity in country. Fire was mainly associated with above‐average precipitation winter...
Abstract Forest fire activity has increased in recent years central and south‐central Chile. Drought conditions have been associated with the increase of large wildfires, area burned longer seasons. This study examines influence drought on regimes discusses landscape management opportunities to decrease hazard. Specifically, we investigate effect 2010–2015 Megadrought (MD) compared 1990–2009 period (fire‐season length, number fires across months, sizes, regions vegetation cover types,...