A5017233877- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Animal Ecology and Behavior Studies
- Animal Behavior and Reproduction
- Animal and Plant Science Education
- Mollusks and Parasites Studies
- Wildlife Ecology and Conservation
- Plant and animal studies
- Morphological variations and asymmetry
- Genetic diversity and population structure
- Aquatic Invertebrate Ecology and Behavior
- Physiological and biochemical adaptations
- Scarabaeidae Beetle Taxonomy and Biogeography
- Insect and Arachnid Ecology and Behavior
- Evolution and Paleontology Studies
- Ecology and Vegetation Dynamics Studies
- Medieval Architecture and Archaeology
- Lepidoptera: Biology and Taxonomy
- Medieval Iberian Studies
- Isotope Analysis in Ecology
- Sustainability and Climate Change Governance
- Bat Biology and Ecology Studies
- Comparative Animal Anatomy Studies
- Microbial Community Ecology and Physiology
- Polar Research and Ecology
University of Bío-Bío
2015-2025
Pontificia Universidad Católica de Chile
2012-2024
Center for Climate and Resilience Research
2018
University of Chile
2006-2011
University of Concepción
2002-2011
Institute of Ecology and Biodiversity
2011
Instituto Nacional de Cardiología
2002
Comprehensive assessments of species' extinction risks have documented the crisis1 and underpinned strategies for reducing those risks2. Global reveal that, among tetrapods, 40.7% amphibians, 25.4% mammals 13.6% birds are threatened with extinction3. Because global been lacking, reptiles omitted from conservation-prioritization analyses that encompass other tetrapods4-7. Reptiles unusually diverse in arid regions, suggesting they may different conservation needs6. Here we provide a...
Resources are limited in global biodiversity conservation efforts, which emphasizes the significance of setting priorities. Using standardized criteria, we evaluated 58 amphibian species Chile to determine their priority (CP). Species with insufficient historical data had values marked as missing. With a median value p = 1.67, results demonstrated CP ranging from 0.48 3.0, classifying into and non-priority groups. Four levels were established for categories: no priority, low medium high...
Sedimentation in hydroelectric reservoirs is strongly impacted by anthropogenic activities within their upstream drainage basins. These activities, encompassing soil erosion and various other human-induced actions, have significant consequences for sedimentation patterns. This issue has been a subject of prolonged study, as directly undermines the water storage capacity reservoirs, consequently diminishing overall efficiency operations. Several scientists dedicated efforts to addressing...
Abstract As ectotherms, high-elevation reptiles rely heavily on temperature fluctuations in their surroundings to maintain physiological functions. If the rate of local adaptation does not keep up with rise temperature, these species are predicted be especially vulnerable global warming. A endemic from central Chile’s Mediterranean Andes, Phymaturus vociferator , lives incredibly variable daily and seasonal thermal environments. We estimated standard parameters related body heating developed...
Abstract Aim In this study we evaluate patterns of endemism for benthic polychaete species along the southeastern Pacific coast Chile. Our goals were (1) to describe latitudinal gradients and identify areas high endemism, (2) effect biogeographical limits on patterns, (3) indirectly role played by evolutionary dynamics endemism. Location South‐eastern Chile, ranging from Arica (18° S) Cape Horn (56° S). Methods We used a list 178 endemic, shallow polychaetes Parsimony analysis endemicity...
Abstract Aim Antarctica's remote and extreme terrestrial environments are inhabited by only two species of native vascular plants. We assessed genetic connectivity amongst Antarctic South American populations one these species, Colobanthus quitensis , to determine its origin age in Antarctica. Location Maritime Antarctic, sub‐Antarctic islands, America. Taxon pearlwort (Caryophyllaceae). Methods Four chloroplast markers nuclear marker were sequenced from 270 samples a latitudinal transect...
Abstract Species delimitation in minute freshwater snails is often difficult to perform using solely shell morphology. The problem intensifies when invasive species spread within the distribution range of morphologically similar native species. In Chile, Truncatelloidean are represented by genera Heleobia and Potamolithu s plus mudsnail Potamopyrgus antipodarum , which can easily be confused. Using an integrative approach, we performed molecular phylogenetic analysis studied reproductive...
Abstract We analyze the geographic distribution pattern of Chilean amphibian and reptile species between 18°20′S (Arica) to 56°S (Magellanic Area) by identification centers higher richness endemism we infer biological processes that could have promoted these patterns from a biogeographic point view, comparing our results with present location National Parks found in System State Wildlife Protected Areas. Our provide evidence shows clear latitudinal trends along Chile, highest values at...
Behavioral and physiological mechanisms of thermoregulation in ectotherms are conditioned by thermal constraints. These may be even more restrictive when environmental conditions unfavorable for individuals, especially sexual dimorphism segregates the sexes spatially. In order to understand behavioral regulation mechanisms, we investigated biology Phymaturus palluma (Molina, 1782), a sexually size dimorphic, high-mountain lizard that inhabits extreme climatic conditions. P. showed bimodal...
Abstract The Chilotan Archipelago and surrounding areas of north‐western Patagonia (41°–43°S, 72°–74°W) offer a unique opportunity to study the interplay between recent genetic paleoenvironmental evolution on temperate rainforest environments. Previous studies in this region have postulated that land biota persisted west Patagonian ice sheet, ice‐free low‐elevation regions mainland, portion Isla Grande de Chiloé during Quaternary ages. In study, we analysed phylogeographical structure...
Microlophus is a lizard genus of South-America which has many species with sexual size dimorphism.An ecological study was performed on M. atacamensis, inhabiting the intertidal zone coast northern Chile.The following questions were addressed: (1) does atacamensis exhibit dimorphism?(2) do individuals different age and sex segregate spatially?(3) use type microhabitat?and (4) sexes differences in thermoregulatory characteristics?The conducted localities from Chile, include two types rocky...
Abstract Liolaemus tenuis is a widely distributed arboreal lizard species in central-southern Chile. Although two subspecies, L. t. and punctatissimus, have been described based on sexual dimorphism, their characteristic not accurately demarcated. Therefore, both traditional geometric morphometrics were used to study the morphological variation of tenuis. Four specific questions addressed: (1) Does population occur along latitudinal gradient, given its wide geographic distribution climactic...
Abstract Liolaemus pictus is a widely distributed arboreal lizard species in southern Chile. Within this species, mainland and island subspecies have been described mainly based on external morphological characters, however, their diagnostic characters not accurately demarcated. We used both traditional geometric morphometrics to study the divergence L. subspecies. Since geographic isolation can be related environmental variation (e.g., abundance richness of insects or fruits), we predict...
The sewage snail Physa acuta, native to North America, is an effective invasive species around the world. In Chile, it was first reported in 2014 north central area of country. So far, has not been recorded southern Chile. Sampling performed 2015 three localities from Llanquihue Lake, Chilean Patagonia, only provided freshwater snails. However, new collections February 2018 same sites were successful for physid specimens suggesting a biological invasion entailing large southward range...
Abstract Pleistocene glaciations produced significant increases in continental ice cover polar and mid‐latitude temperate areas, sea‐level declines shifts reshuffling of biomes, all which promote either isolation, coalescence or fragmentation the distribution land biota. If populations several taxa have been co‐distributed for a prolonged time, if periods between perturbation vicariance processes more less stable, it is expected that divergence patterns closely related ecologically similar...
Evaporitic ecosystems of the Atacama Desert contain a rich endemic fauna, including mollusk species. A recent study performed in freshwater snail Heleobia atacamensis, to Saltpan, revealed strong interdependence genetic patterns with climatic fluctuations and landscape physiography. The species is currently listed as Critically Endangered at regional scale Data Deficient on International Union for Conservation Nature (IUCN) Red List. Here, we studied diversity demographic history several...