A5042835209- Genetic diversity and population structure
- Plant Taxonomy and Phylogenetics
- Botany, Ecology, and Taxonomy Studies
- Ecology and Vegetation Dynamics Studies
- Plant Diversity and Evolution
- Scarabaeidae Beetle Taxonomy and Biogeography
- Hemiptera Insect Studies
- Fern and Epiphyte Biology
- Mercury impact and mitigation studies
- Plant and animal studies
- Sesquiterpenes and Asteraceae Studies
- Environmental Toxicology and Ecotoxicology
- Heavy metals in environment
- Environmental and Cultural Studies in Latin America and Beyond
- Forest Insect Ecology and Management
- Freshwater macroinvertebrate diversity and ecology
- Coleoptera Taxonomy and Distribution
- Marine and coastal plant biology
- Species Distribution and Climate Change
- Coastal and Marine Management
- Genetic and Environmental Crop Studies
- Research on scale insects
- History and Politics in Latin America
- Insect-Plant Interactions and Control
- Conservation, Biodiversity, and Resource Management
University of Talca
2008-2023
Universidad Bernardo O'Higgins
2015-2021
Universidad Nacional Autónoma de México
2012-2017
University of Concepción
2015
Institute of Ecology and Biodiversity
2012
Instituto de Estudios Avanzados
2007-2012
University of La Serena
2007-2012
Catholic University of the Maule
2011
Background: Chile is committed to extending its National System of Protected Areas (NSPA), focusing on eco-regions whose ecosystems are currently under-represented in the NSPA. A newly proposed law aims create a Service Biodiversity and that would unify terrestrial marine systems. The allow inclusion private protected areas. Aims: We evaluate current status conservation areas propose an eco-regional plan reaching overall target bring 10% all natural under protection. Methods: GAP analysis...
Adaptive radiation is a common mode of speciation among plants endemic to oceanic islands. This pattern one cladogenesis, or splitting the founder population, into diverse lineages in divergent habitats. In contrast, species have also evolved primarily by simple transformations from progenitors source regions. anagenesis, whereby founding population changes genetically and morphologically over time through mutation recombination. Gene flow populations maintained homogeneous environment with...
This study analyses and compares the genetic signatures of anagenetic cladogenetic speciation in six species genus Robinsonia (Asteraceae, Senecioneae), endemic to Juan Fernández Islands, Chile. Population structure was analyzed by amplified fragment length polymorphism (AFLP) microsatellite (simple sequence repeat, SSR) markers from 286 320 individuals, respectively, 28 populations. Each is genetically distinct. Previous hypotheses classification among these into subgenera sections, via...
A common mode of speciation in oceanic islands is by anagenesis, wherein an immigrant arrives and through time transforms mutation, recombination, drift into a morphologically genetically distinct species, with the new species accumulating high level genetic diversity. We investigate Drimys confertifolia, endemic to two major Juan Fernández Archipelago, Chile, determine consequences examine relationships among populations D. confertifolia continental winteri andina, test probable migration...
The Cu, Cr and Pb concentrations were determined in Mugil cephalus Eleginops maclovinus, fish species inhabiting the mouths of Maule Mataquito Rivers (Maule Region, Chile) which are consumed by coastal population large quantities.Measurements taken flame atomic absorption spectroscopy to analyse representative muscle tissue two species.The method was validated using certified reference material (DOLT-1).The concentration ranges (mg .kg -1 , dry weight) from river were: Cu 0.5-36.2;Cr...
Anagenesis (or phyletic evolution) is one mode of speciation that occurs in the evolution plants on oceanic islands. Of two endemic species Juan Fernández Islands (Chile), Myrceugenia fernandeziana and M. schulzei (Myrtaceae), believed to have originated anagenetically from different continental progenitors, first Robinson Crusoe Island has no clear tie relatives; last younger island, Alejandro Selkirk Island, close affinity colchaguensis mainland Chile.Using AFLPs six nuclear...
Background: Myrcianthes coquimbensis is an endangered shrub endemic to Chile. No published account known about its biology, ecology or threats continued existence. Aims: To document the current state of knowledge M. regarding geographic distribution, and population reproductive parameters, evaluate in distribution range. Methods: Historical records recent survey data 110 localities were used characterise distribution. Plots established seven determine proportion flowering individuals,...
Mediante la revisión de material referencia, literatura y prospecciones entomológicas se documentó composición taxonómica del orden Orthoptera para las provincias biogeográfi cas Atacama Coquimbo estableció distribución espacial sus especies en relación a formaciones vegetales descritas dichas provincias.Se registró presencia 68 especies, 37 géneros 9 familias.Tettigoniidae fue familia más diversa, seguida Proscopiidae Acrididae.La mayor riqueza específi ca observó solo cuatro 23...
Abstract Oceanic islands provide many opportunities for examining modes of speciation in endemic plants, especially using modern molecular methods. Most has been by either cladogenesis, usually resulting radiated complexes, or anagenesis, yielding single transformed species. Previous genetic studies with available markers, representing a limited sampling the genome, have suggested that during species accrue small differences but differ dramatically morphology. An appropriate archipelago...
Gomortega keule (Molina) Baillon is a rare Chilean species classified as endangered and currently under conservation. Currently, conservation of this carried out by private companies government agencies, but done so based more on pragmatic criteria than scientifically strategies. In context, information concerning the genetic variability among different populations over its entire distribution range incomplete, making it difficult to coordinate management Here we report study evaluate...
Microsatellite primers were developed for the endemic Chilean tree Quillaja saponaria (Quillajaceae), a common member of sclerophyllous Mediterranean forest, to investigate intraspecific patterns genetic diversity and structure.Using an enriched library, 12 polymorphic microsatellite loci in Q. saponaria. All consisted dinucleotide repeats. The average number alleles per locus was 5.3 (2-13), with total 64 recorded 39 individuals from three populations.The markers described here are first...
El cultivo ex situ de Pteris chilensis Desv. a partir esporas es presentado. La germinacion las ocurre los 10-12 dias y el patron del tipo Vittaria. Un gametofito filamentoso 3-4 celulas obtenido 23-24 dias, logrando su desarrollo adulto entre 60 95 dias. Este se caracteriza por ser cordiforme con alas simetricas. Los arquegonios forman antes que anteridios. Finalmente, la primera fronde aparece 115 sembradas esporas. Las cultivaron en agar medio nutritivo Thompson, camara un fotoperiodo 12...
The genus R haphithamnus ( V erbenaceae) consists of two species, one in S outh A merica and another endemic to the J uan F ernández archipelago, C hile. represents an example anagenetic speciation which island populations have diverged from their colonizing ancestors point where they are recognized as a distinct species. species venustus differs continental . spinosus primarily by floral traits associated with adaptation hummingbird pollination. Two molecular markers, amplified fragment...
Sclerophyllous forest is among the most representative types of woody plant communities in central Chile where Quillaja saponaria considered to be one important species. In this study, we analysed main factors that explain geographical patterns variation composition, richness and phylogenetic diversity Chilean sclerophyllous present. Vegetation surveys were performed for trees shrubs thirty-nine sites from 30° 38° latitude South Mediterranean biome Chile. Composition, richness, alfa...
Arthopods of forestry and medical-veterinary importance in the Limarí basin (Coquimbo region, Chile).Cien.Inv.Agr.46(1): 40-49.The River valley, located Coquimbo Region Chile, is an important area for agricultural production that pertains to transverse valleys ecoregion, known as Norte Chico.In recent decades, continuous expansion agriculture towards dryland areas has favored introduction establishment potential pests, such arthropods, may affect crops transmit zoonotic diseases.We analyzed...
The Limarí valley, located in the Coquimbo Region of Chile, is an important agricultural area that immersed transverse valleys Norte Chico. In recent decades, continuous expansion agriculture towards dry land zones has favored migration and establishment potential pests, such as arthropods, may affect crops or be zoonotic agents. Based on limited knowledge we have about arthropod group present basin, our objective to describe taxonomic composition assemblage economically arthropods...
En este estudio se evaluó el comportamiento de modelos tradicionales altura dominante y área basal incorporando variables ambientales para plantaciones Eucalyptus globulus en la zona sur Chile
Heterogeneous genetic structure in a natural population of Raulí (Nothofagus