The New Republic, 1830–1865
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New Populations of Two Threatened Species of Alsodes (Anura
Zoosyst. Evol. 94 (2) 2018, 349–358 | DOI 10.3897/zse.94.25189 New populations of two threatened species of Alsodes (Anura, Alsodidae) reveal the scarce biogeographic knowledge of the genus in the Andes of central Chile Claudio Correa1,*, Paulo Zepeda2, Nicolás Lagos3, Hugo Salinas4, R. Eduardo Palma2, Dayana Vásquez2,* 1 Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario S/N, Concepción, Chile 2 Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile 3 Alianza Gato Andino, Jenner 152, B° La Quinta, Segunda Sección Villa Carlos Paz, Córdoba, Argentina 4 Ecodiversidad Consultores, Riñihue 1022, Puente Alto, Santiago, Chile http://zoobank.org/D9185A98-A5A3-4B0B-9010-E81BC732E6FA Corresponding author: Claudio Correa ([email protected]) Abstract Received 21 March 2018 High Andean environments of central Chile (32°–38°S) are inhabited by several endemic Accepted 1 June 2018 species of the genus Alsodes. Two of them, A. pehuenche and A. hugoi, have geographic Published 17 July 2018 distributions restricted to their type locality and surroundings. The Chilean government classifies A. pehuenche as Critically Endangered (like the IUCN) and A. hugoi as Vul- Academic editor: nerable. In this study we report 16 new localities of Alsodes, corresponding to first order Peter Bartsch streams, located in the Andes of Chile between 35°58’ and 36°32’S (1800–2470 m). In some of these sites, adults and juveniles morphologically similar to A. pehuenche and Key Words A. hugoi were observed, as well as specimens of Alsodes that could not be identified by their external morphology. -
Microtremors' HVSR and Its Correlation with Surface Geology and Damage Observed After the 2010 Maule Earthquake (Mw 8.8) at Talca and Curicó, Central Chile
Engineering Geology 161 (2013) 26–33 Contents lists available at SciVerse ScienceDirect Engineering Geology journal homepage: www.elsevier.com/locate/enggeo Microtremors' HVSR and its correlation with surface geology and damage observed after the 2010 Maule earthquake (Mw 8.8) at Talca and Curicó, Central Chile F. Leyton a,⁎, S. Ruiz b, S.A. Sepúlveda c, J.P. Contreras d, S. Rebolledo c, M. Astroza e a Dept. Civil Engineering, Universidad Diego Portales, Santiago, Chile b Dept. Geophysics, Universidad de Chile, Santiago, Chile c Dept. Geology, Universidad de Chile, Santiago, Chile d Servicio Nacional de Geología y Minería, Santiago, Chile e Dept. Civil Engineering, Universidad de Chile, Santiago, Chile article info abstract Article history: Nowadays, microtremors' horizontal-to-vertical spectral ratio (HVSR) has been extensively used in the esti- Received 23 June 2012 mation of the predominant vibration frequency of soils, mainly for microzonation purposes. In the present Received in revised form 7 March 2013 study, we show results from extensive microtremor measurements performed at the cities of Talca and Accepted 14 April 2013 Curicó, Central Chile. We found a strong correlation between surface geology and microtremors' HVSR, Available online 28 April 2013 even in complex geological settings. Considering the damage produced by the 2010 Maule earthquake (Mw 8.8), we also estimated high-density macroseismic intensities at these cities, with values ranging Keywords: Microtremors from VI up to VIII on the MSK64 scale. We believe that the main responsible of these variations are the surface Resonance frequency geological conditions, also reflected in the variations of the resonance frequencies of the soils. -
Patricio Alejandro González Loyola
UNIVERSIDAD DE TALCA FACULTAD DE CIENCIAS FORESTALES ESCUELA DE INGENIERÍA FORESTAL CONSTRUCCIÓN DE HERRAMIENTAS MATEMÁTICAS PARA LA PREDICCIÓN DEL COMPORTAMIENTO DE LOS CAUDALES PUNTA EN LA REGIÓN DEL MAULE. PATRICIO ALEJANDRO GONZÁLEZ LOYOLA Memoria para optar al título de: INGENIERO FORESTAL Profesor Guía: DR. ING. ROBERTO PIZARRO TAPIA TALCA – CHILE 2009 0 ÍNDICE 1. INTRODUCCIÓN.......................................................................................................1 2. OBJETIVOS……………………………………………..................................................3 2.1. Objetivo General................................................................................................3 2.2. Objetivos Específicos........................................................................................3 3. REVISIÓN BIBLIOGRÁFICA…………………………......…........................................4 3.1 Hidrograma de crecida……………………………………....................................4 3.1.2. Caudal máximo o punta................................................................................5 3.1.3. Medición del nivel de aguas……………………………………..................….6 3.2. Las crecidas………………………………………………………….….....…..............7 3.2.1. Predicción de crecidas..................................................................................8 3.2.2 Método de predicción del caudal punta…………………………...…...........10 3.3. Modelos matemáticos.........................................................................................11 3.4. Métodos no paramétricos..................................................................................12 -
Development of Upstream Data-Input Models to Estimate Downstream Peak Flow in Two Mediterranean River Basins of Chile
Open Journal of Modern Hydrology, 2014, 4, 132-143 Published Online October 2014 in SciRes. http://www.scirp.org/journal/ojmh http://dx.doi.org/10.4236/ojmh.2014.44013 Development of Upstream Data-Input Models to Estimate Downstream Peak Flow in Two Mediterranean River Basins of Chile Roberto Pizarro-Tapia1, Rodrigo Valdés-Pineda1,2*, Claudio Olivares3, Patricio A. González1 1University of Talca, Technological Center of Environmental Hydrology (CTHA), Talca, Chile 2University of Arizona, Department of Hydrology and Water Resources, Tucson, USA 3Ministry of Public Works, Water Resources Directorate (DGA), Coyhaique, Chile Email: [email protected], *[email protected], [email protected] Received 6 August 2014; revised 8 September 2014; accepted 6 October 2014 Copyright © 2014 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/ Abstract Accurate flood prediction is an important tool for risk management and hydraulic works design on a watershed scale. The objective of this study was to calibrate and validate 24 linear and non-linear regression models, using only upstream data to estimate real-time downstream flooding. Four cri- tical downstream estimation points in the Mataquito and Maule river basins located in central Chile were selected to estimate peak flows using data from one, two, or three upstream stations. More than one thousand paper-based storm hydrographs were manually analyzed for rainfall events that occurred between 1999 and 2006, in order to determine the best models for predicting down- stream peak flow. The Peak Flow Index (IQP) (defined as the quotient between upstream and down- stream data) and the Transit Times (TT) between upstream and downstream points were also ob- tained and analyzed for each river basin. -
Some Normative Aspects of Planning in the Maule Region, Chile Francisco Jacinto Andrade Iowa State University
Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1971 Some normative aspects of planning in the Maule region, Chile Francisco Jacinto Andrade Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Agricultural and Resource Economics Commons, and the Agricultural Economics Commons Recommended Citation Andrade, Francisco Jacinto, "Some normative aspects of planning in the Maule region, Chile " (1971). Retrospective Theses and Dissertations. 4867. https://lib.dr.iastate.edu/rtd/4867 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. 71-25,841 ANDRADE, Francisco Jacinto, 1934- SOME NORMATIVE ASPECTS OF PLANNING IN THE MAULE REGION, CHILE. Iowa State University, Ph.D., 1971 Economics, Agricultural University Microfilms, A XEROX Company , Ann Arbor, Michigan 71-26,841 ANDRADE, Francisco Jacinto, 1934- SOME NORMATIVE ASPECTS OF PLANNING IN THE MAULE REGION, CHILE. Iowa State University, Ph.D., 1971 Economics^ Agriculturëil . University Microfilms, A XEROX.Company, Ann Arbor, Michigar THIS DISSERTATION HAS BED! MICROFILMED EXACTLY AS RECEIVI Some normative aspects of planning in the Maule region, Chile by Francisco Jacinto Andrade A Dissertation Submitted to the Graduate Faculty in Partial Fulfillmen The Requirements for the Degree of DOCTOR OF PHILOSOPHY Major Subject: Economics Approved: Signature was redacted for privacy. In Ch arge of Major Work Signature was redacted for privacy.