DOCSLIB.ORG

Efecto De Las Actividades Antropogénicas Sobre La Cobertura De Mangle En La Cuenca Baja Del Río Coatzacoalcos M.C

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Efecto De Las Actividades Antropogénicas Sobre La Cobertura De Mangle En La Cuenca Baja Del Río Coatzacoalcos M.C Ecosistemas 29(3):1954 [Septiembre-Diciembre 2020] https://doi.org/10.7818/ECOS.1954 aeet ecosistemasREVISTA CIENTÍFICA DE ECOLOGÍA Y MEDIO AMBIENTE ISSN 1697-2473 ASOCIACIÓN ESPAÑOLA Open access / CC BY-NC 3.0 DE ECOLOGÍA TERRESTRE INVESTIGACIÓN disponible en www.revistaecosistemas.net Efecto de las actividades antropogénicas sobre la cobertura de mangle en la cuenca baja del río Coatzacoalcos M.C. Cuevas-Díaz1,2*, A. H. Hernández-Romero2, D. Vázquez-Luna2,3, D. A. Lara-Rodríguez3,2, O. Guzmán-López1, J. E. González-Arvizu1, J. I. Ontiveros-José1 (1) Facultad de Ciencias Químicas. Universidad Veracruzana. Av Universidad Km 7.5. Col Santa Isabel Coatzacoalcos, Ver., CP 96538. México. (2) Centro de Estudios Interdisciplinarios en Agrobiodiversidad. Universidad Veracruzana. Ctra. Costera del Golfo, Km. 220. Acayucan, Veracruz. CP 96000. México. (3) Facultad de Ingeniería en Sistemas de Producción Agropecuaria. Universidad Veracruzana. Ctra. Costera del Golfo, Km. 220. Acayucan, Veracruz. CP 96000. México. * Autor de correspondencia: M.C. Cuevas-Díaz [[email protected]] > Recibido el 28 de marzo de 2020 - Aceptado el 31 de agosto de 2020 Cuevas-Díaz, M.C., Hernández-Romero, A.H., Vázquez-Luna, D., Lara-Rodríguez, D-A., Guzmán-López, O., González-Arvizu, J.E., Onti- veros-José, J.I. 2020. Efecto de las actividades antropogénicas sobre la cobertura de mangle en la cuenca baja del río Coatzacoalcos. Ecosistemas 29(3):1954. https://doi.org/10.7818/ECOS.1954 Los manglares son uno de los tipos de humedales costeros presentes en la cuenca baja del río Coatzacoalcos que, a pesar de su creciente deterioro, conservan importancia ecológica y económica. El objetivo del presente estudio fué identificar la principal actividad antropogénica que ha contribuído a reducir la cobertura de manglar en la cuenca baja del río Coatzacoalcos, mediante dos métodos: 1) comparando las áreas de los manglares y el desarrollo urbano, entre los años 1986 y 2016, con imágenes Landsat y Sentinel (escala 1:250,000), utilizando Q-Gis versión 2.14.2; y 2) mediante una matriz de máximos y mínimos, donde se asignaron valores para calificar el grado de afectación de las acciones antrópicas a cada componente del ecosistema. De acuerdo con el análisis espacial realizado, entre 1986 y 2016, se registró una pérdida del 86% de manglares, asociado al aumento de los asentamientos humanos en la cuenca baja del río Coatzacoalcos. Las acciones que más afectaron los componentes ambientales fueron los asentamientos humanos, desmontes y rellenos, ganadería y emplazamientos industriales con porcentajes de afectación de 15.9, 15.7, 15.5 y 13.5%, respectivamente. Los componentes ambientales más afectados fueron el suelo, la flora y el agua, con porcentajes de afectación del recurso de 17, 17 y 16%, respectivamente. Los asentamientos humanos son la principal causa de pérdida de manglares en la cuenca baja del río Coatzacoalcos, en particular los asentamientos irregulares que se dan en la región. Palabras clave: ecosistemas tropicales en peligro; humedal; perturbación ambiental; riesgo ambiental Cuevas-Díaz, M.C., Hernández-Romero, A.H., Vázquez-Luna, D., Lara-Rodríguez, D-A., Guzmán-López, O., González-Arvizu, J.E., Ontive- ros-José, J.I. 2020. Effect of anthropogenic activities on mangrove coverage in the lower Coatzacoalcos river basin. Ecosistemas 29(3):1954. https://doi.org/10.7818/ECOS.1954 Mangroves are one of the types of coastal wetlands present in the lower basin of the Coatzacoalcos River, which, despite their increasing deterioration, retain ecological and economic importance. The objective of this study was to identify the main anthropogenic activity that has contributed to reducing mangrove coverage in the lower basin of the Coatzacoalcos River, using two methods: 1) comparing mangrove areas and urban development, bet- ween 1986 and 2016, with Landsat and Sentinel images (scale 1: 250 000), using Q-Gis version 214.2; and 2) through a matrix of maximums and minimums, where values were assigned to rate the degree of affectation of anthropic actions to each component of the ecosystem. Between 1986 and 2016, mangrove loss was 86%, and it is associated with the increase in human settlements in the lower basin of the Coatzacoalcos River. The actions that most affected the environmental components were human settlements, land clearings and landfills, livestock, and industrial sites with af- fected percentages of 15.9, 15.7, 15.5, and 13.5%, respectively. The most affected environmental components were soil, flora, and water, with per- centages of affectation of the resource of 17, 17, and 16 %, respectively. Human settlements are the leading cause of loss of mangroves in the lower basin of the Coatzacoalcos River, particularly the irregular settlements that occur in the region. Keywords: environmental disturbance; environmental risk; endangered tropical ecosystems; wetland Introducción ción del hombre o de la naturaleza. Los manglares han sido impac- tados de forma directa, mediante la tala irregular, el cambio de uso El ecosistema de manglar se caracteriza por encontrarse en de suelo, entre otras, e indirecta, por actividades productivas (turís- zonas tropicales y subtropicales, y tiende a ser más extenso en sitios ticas, petroleras e industriales) así como el crecimiento demográfico. costeros, en donde las altas descargas de los ríos proporcionan Estas acciones han ocasionado la disminución de su extensión, mayor concentración de nutrientes en el ambiente (Kjerfve et al como la pérdida de los recursos naturales y sus funciones ecológi- 1999), generando condiciones para una alta productividad primaria cas; alrededor de 35 % de la cobertura mundial de manglares se ha y biodiversidad (Escobar 2004; MEA 2005; Blaber 2007), que puede perdido (MEA 2005), como en los Everglades de Florida, EEUU, traducirse en el incremento en rendimientos de las actividades pro- donde más del 65% de un total de 10 000 km2 de humedales, inclu- ductivas, como la pesca (Aburto-Oropeza et al. 2008). A pesar de su yendo los manglares, han desaparecido por acciones del desarrollo importancia, los ecosistemas de manglar han sido afectados por ac- humano y actividades agropecuarias (Barba-Macías et al. 2014). © 2020 Los Autores. Editado por la AEET. [Ecosistemas no se hace responsable del uso indebido de material sujeto a derecho de autor] 1 Ecosistemas 29(3): 1954 Cuevas-Díaz et al. 2020 México, en conjunto con Indonesia, Australia, Brasil y Nigeria, Landsat y Sentinel (escala 1:250 000), utilizando Q-Gis versión en 2005 contaban con 48% de la cobertura de manglares a nivel 2.14.2; y 2) mediante una matriz de máximos y mínimos, donde se mundial, y con Cuba cubren la cuarta parte de los manglares de la asignaron valores para calificar el grado de afectación de las ac- Región Norte y Central de América (FAO 2007). Los manglares se ciones antrópicas a cada componente del ecosistema. encuentran en todos los estados del litoral mexicano, incluyendo las cinco regiones biogeográficas: Pacífico Norte, Pacífico Centro, Pa- Material y métodos cífico Sur, Península de Yucatán y Golfo de México (Rodríguez-Zu- ñiga et al. 2013). A nivel nacional, los manglares también han Área de estudio presentado una reducción drástica en su superficie, cuya cuantifi- La zona de manglares estudiada se encuentra situada en la cación varía con la fuente y el método utilizado. Flores et al. (1971) cuenca baja del río Coatzacoalcos, y forma parte de los municipios estimaron mediante planimetría con cartas, una cobertura de de Minatitlán, Ixhuatlán del Sureste, Nanchital y Coatzacoalcos 1 420 230 ha, en contraste con lo reportado por Yáñez-Arancibia y (Fig.1). La cuenca del Río Coatzacoalcos forma parte de la Región Lara-Domínguez 1999, con 524 600 ha. Sin embargo, existen dis- Hidrológica 29, y abarca un área de 23 956 km² que corresponden crepancia entre las estimaciones, como lo reportado por Acosta-Ve- al 1.2% de la superficie total de la República Mexicana. Territorial- lázquez et al. (2009), con 770 057 ha. Según el informe nacional mente la Región Hidrológica 29, comprende 32 municipios, de los más reciente, en donde utilizaron imágenes aéreas de 1970 a 1980 cuales nueve pertenecen al Estado de Oaxaca y 23 al estado de e imágenes SPOT y RapidEye del año 2015, concluyeron que la co- Veracruz de Ignacio de la Llave. Se ubica en la denominada Llanura bertura en los últimos cuarenta años cambió de 856 405 a 775 555 ha (Valderrama-Landeros et al. 2017). Costera del Golfo de México, limita al sur con la Sierra Madre del Sur y al norte con la cuenca del río Papaloapan (Consejo de Cuenca La cobertura de manglares en el estado de Veracruz representa del Río Coatzacoalcos 2013). La parte de la cuenca baja del río Co- el 4.96 % de la superficie nacional, pero pasó de 44 820 ha en 1976 atzacoalcos que se estudió corresponde a un área de 38 km (SIATL a 38 311 ha en 2015, y la superficie de manglar perturbado pasó 2015). El clima es Am(f), cálido húmedo con lluvias en verano (Gar- de 4 a 1740 ha en el mismo lapso de tiempo. En la cuenca baja del cía 2004) y los tipos de suelo dominantes son Gleysol (en las orillas río Coatzacoalcos, los registros que se tienen reportan que dismi- de los cuerpos de agua, 62.1%), Vertisol (hacia el interior, 27.7%) y nuyó de 940 a 300 ha de 1976 a 2005, y la cobertura en 2009 se Regosol (en la barra arenosa costera, 10.2%) (INEGI 2014). redujo a 272 ha (López-Portillo et al. 2009a). A nivel regional, en el sur de Veracruz la falta de planeación, la ausencia de ordenamien- Los manglares de la cuenca baja del río Coatzacoalcos, si- tos ecológicos territoriales y la aplicación de políticas económicas guiendo la propuesta de Rodríguez-Zúñiga et al. (2018), se consi- productivistas implementadas por los diferentes órdenes de go- deran bosques ribereños, sometidos a marea mixta diurna, de tipo bierno han llevado estos sistemas ambientales prácticamente a su de manglar arbóreo bajo, con 6.3 m de altura en promedio (López- desaparición, quedando apenas 30% de la cobertura que se tenía Portillo et al.
Load more

Recommended publications
  • Metals Distribution and Contamination in the Gulf of Mexico
    METALS DISTRIBUTION AND CONTAMINATION IN THE GULF OF MEXICO Alfonso Vázquez-Botello, Susana Villanueva-Fragoso and Leticia Rosales-Hoz INTRODUCTION Metals are a natural part of the earth’s crust and are found in rocks, soils, sediments, water and volcanic eruptions. However, in the years following the industrial revolution major changes occurred in the natural concentration of metals, due to their widespread use for industrial and human purposes. One clear example of this is found in the Gulf of Mexico, where the excessive presence of some metals in the coastal ecosystems is a result of their introduction through contamination processes and contribution by rivers, which include the two largest deltas that run into the Gulf of Mexico: the Mississippi River in the U.S.A. and the Grijalva-Usumacinta rivers in Mexico. The contamination from the rivers and deltas includes toxic wastes such as metals, oil- based hydrocarbons and persistent organic contaminants such as pesticides and PCB. The industrial and commercial activities carried out in the big port areas of Brownsville, Corpus Christi, Houston and Galveston in the U.S.A., and Tampico-Madero, Altamira, Veracruz, Alvarado, Coatzacoalcos, Dos Bocas and Ciudad del Carmen in Mexico, are potential sources of contamination to marine and coastal environments. There are 22 rivers in Mexico that run into the Gulf, the most important of which is the Rio Grande (Río Bravo), that forms part of the border between Mexico and the U.S.A. A series of dams have been built along the Rio Grande, regulating its flow into the Gulf of Mexico.
    [Show full text]
  • Effect of Urban Development in Risk of Floods in Veracruz, Mexico
    geosciences Article Effect of Urban Development in Risk of Floods in Veracruz, Mexico Emmanuel Zúñiga 1,* ,Víctor Magaña 2 and Violeta Piña 3 1 CONACYT–Instituto de Geografía, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, Ciudad Universitaria, Ciudad de México 04510, Mexico 2 Instituto de Geografía, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, Ciudad Universitaria, Ciudad de México 04510, Mexico; [email protected] 3 Posgrado en Ciencias de la Tierra, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, Ciudad Universitaria, Ciudad de México 04510, Mexico; [email protected] * Correspondence: [email protected] Received: 21 August 2020; Accepted: 2 October 2020; Published: 9 October 2020 Abstract: Urban floods have adverse effects on the population and the economy, and they are increasing in frequency and magnitude. The State of Veracruz is the region of Mexico with the highest number of disasters, more than 50% of the total number nationwide, in the 1970–2015 period. During the 1990s, disasters in this region increased from 5 to 10 events per year, mostly in relation to intense rains and floods. This study analyzes the factors that increase the risk of urban floods in the regions: (i) the Pánuco River, (ii) the Papaloapan River, and (iii) the Coatzacoalcos River regions, combining hazard data and estimates of vulnerability factors. The 95th percentile of daily precipitation (P95) is used as a threshold of heavy rain, i.e., the natural hazard. Vulnerability is estimated in terms of the percentage of natural vegetation loss due to changes in land cover and land use in the hydrological basins and the expansion of the urban areas in the regions under study.
    [Show full text]
  • Isthmus of Tehuantepec
    UCRL-ID-126133 a Isthmus of Tehuantepec R. A. Miles DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsi- bility for the accuracy. completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its usc would not infringe privately owned rights. Refer- ence herein to any specific commercial product, process, or service by trade name, trademark manufacturer. or otherwise does not neccssarily constitute or imply its endorsement, rccom- mendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect thosc of the United States Government or any agency thereof. This is an informal report intended primarily for internal or limited external distribution. The opinions and conclusions stated are those of the author and may or may not be those of the Laboratory. Work performed under the auspices of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under Contract W-7405-ENG-48. DISCLAIMER Portions of this document mybe illegible in electronic image products. Images are produced from the best available original document. 25 March 1958 DECLASSIFICATION STAMP ON RWER / MJ3MORANDUM TO8 Distribution FROM : Robert A. Miles SUBjECTt Revised Ke?ort - Isthmus of Tehuantepec Enclosed for yotir information and retention is one copy of a preliminary report on the Isthus of Tehuantepec as a location for a non-military application of nuclear devices.
    [Show full text]
  • The Geographical, Linguistic, and Cultural Position of the Popoluca of Veracruz
    UC Berkeley Anthropology Faculty Publications Title The Geographical, Linguistic, and Cultural Position of the Popoluca of Veracruz Permalink https://escholarship.org/uc/item/2xh4p80c Journal American Anthropologist, 45(4) Author Foster, George M. Publication Date 1943-12-01 Peer reviewed eScholarship.org Powered by the California Digital Library University of California Ll THE GEOGRAPHICAL, LINGUISTIC, AND CULTURAL POSI- TION OF THE POPOLUCA OF VERACRUZ By GEORGE M. FOSTER F THE pre-Conquest Aztecs had not contemptuously referred to a number I of distinct alien groups as "Chontales" and "Popolocas" (Popoloco, Popo­ luca, Pupuluca, etc.), the work of later ethnologists would have been much simpler. Fifty years ago Brinton corrected the then common assumption that the various groups so designated were parts of one tribe which had been broken up by invading hordes and forced to flee in all directions.1 The Nahuatl words chontalli and popoloca are variously translated as "foreigner," "stranger," "barbarian," and "one who speaks an unintelligible tongue," and are common nouns, not tribal names. Brinton attempted to classify all of the groups so designated, and to a considerable extent was successful. One of the Popoloca groups that has proven most baffling is that known as the Popoluca of Veracruz, who speak languages related to Mixe-Zoque. Various scattered references to this group, or groups, for actually there are four dis­ tinct idioms spoken, have appeared from time to time, but in none has the relationship of the four groups been clearly defined. This paper, based on field work in 1940 and 1941, attempts to delimit as precisely as possible the geo­ graphical position of the Veracruz Popoluca, comments on earlier references to them, discusses probable linguistic relationships, and very briefly summa­ rizes the cultural status of the most numerous division.
    [Show full text]
  • Environmental Implications of Heavy Metal Concentration In
    Environmental impact of heavy metal concentration in the Coatzacoalcos River, Veracruz, Mexico. Glicinia Valentina Ortiz-Zamora1, Mardocheo Palma2*, Juan José Kasper-Zubillaga3, David Alberto Salas de León3, María Adela Monreal-Gómez3 and Zoila Castillo- Rodriguez3. 1 Laboratorio de Paleomagnetismo y Geofísica Nuclear, Instituto de Geofísica, UNAM, Ciudad Universitaria, Coyoacán, C.P. 04510, México D.F., México. 2 Laboratorio de Geoecología, Centro de Investigaciones en Ecosistemas, UNAM Campus Morelia, México. * [email protected] 3 Instituto de Ciencias del Mar y Limnología, UNAM, Ciudad Universitaria, Coyoacán, C.P. 04510, México D.F., México ABSTRACT A quantitative environmental impact study on heavy metal concentration (Cr, Cu, Mn, Cd, Pb, Co and Ni) in the water, sediments and benthic fauna of the Coatzacoalcos River, Mexico was carried out to establish relationships between heavy metal concentration and human activity (urban and agricultural activities). The Coatzacoalcos River is characterized by one of the largest estuarine systems in the eastern coast of Mexico, and exhibits a large diversity of mangroves, palm trees and terrestrial invertebrates. However, the river has suffered from impacts of petrochemical activities in the past. Sediments, water and benthic fauna were collected during four sampling periods in September 1996 (rainy season), January 1997 (dry season), April 1997 (dry season) and August 1997 (rainy season). Dry sieving of the sediments was carried out. Also in situ measurements of organic matter content and heavy metal concentration were determined for seventeen river stations. The first and fourth samplings showed that most sediment in the Coatzacoalcos River is transported by suspension during the rainy season. The second and third sampling showed saltation as the main mode of transport during the dry season.
    [Show full text]
  • The Power of Rivers Finding Balance Between Energy and Conservation in Hydropower Development Acknowledgments
    The Power of Rivers Finding balance between energy and conservation in hydropower development Acknowledgments 2 THE POWER OF RIVERS Photo: ©Jeff Opperman Lead authors: Dr. Jeff Opperman, Dr. Günther Grill, Dr. Joerg Hartmann. Case study authors and research: Hector Angarita, Pedro Bara Neto, Juliana Delgado, David Harrison, Dr. Jonathan V. Higgins, Erik Martin, Amy Newsock, Dr. Paulo Petry, Ben Roth, Leonardo Sotomayor, Juan Francisco Torres Origel, Diana Vázquez. Contributors: Carolina Aguirre-Echeverri, David Banks, Ana Cristina Barros, Charles Bedford, Dr. Giulio Boccaletti, Katie Crossman, Randy Curtis, Jorge Gastelumendi, Dietmar Grimm, Qiaoyu Guo, Dr. Bernhard Lehner, Emily Powell, Dr. Carmen Revenga, Lynn Scarlett, Lisa Shipley, Meghan Snow, Dr. Rebecca Tharme, Jerry Touval and Dr. Christiane Zarfl. Institutions contributing data and/or analyses: Empresa de Planejamento Energético (EPE) Environmental Department, McGill University, Mexico´s Federal Electricity Commission (CFE), Mexican National Commission for Knowledge and Use of Biodiversity (CONABIO), The Leibniz-Institute of Freshwater Ecology and Inland Fisheries Berlin (IGB), the Center for Applied Geosciences of the Universität Tübingen, the Institute of Environmental Systems Research (USF) of the University of Osnabrück, International Hydropower Association, WWF, and the University of Wisconsin. The following people served as interviewees or reviewed earlier drafts of this paper. Their contributions strengthened the paper, however, the positions expressed in this paper are those of The Nature Conservancy and do not necessarily reflect those who provided input. Ken Adams, Dr. Luiz Gabriel Azevedo, Emmanuel Boulet, Emmanuel Branche, Jean Michel Devernay, Mark Eckstein, Roger Gill, Rikard Liden, Øyvind Espeseth Lier, Dr. Cathy Reidy Liermann, Kimberly Lyon, Gil Maranhão Neto, Dr. Peter McIntyre, Pelayo Menendez, Mario Barroso Ramos Neto, Dr.
    [Show full text]
  • Hidrobiológica 2020, 30 (2): 107-116
    Hidrobiológica 2020, 30 (2): 107-116 OPEN ACCESS HIDROBIOLÓGICA Research Article http:/hidrobiologica.izt.uam.mx August, 2020 ISSN: 2448-7333 Ictiofauna de la Selva Zoque de Santa María Chimalapa, Oaxaca, México Ichthyofauna from the Zoque Rainforest of Santa Maria Chimalapa, Oaxaca, Mexico Eduardo López-Segovia1,2* , Luis Fernando Del Moral-Flores1 y Tao Hernández-Arellano1 Recibido: 14 de noviembre de 2017. Aceptado: 22 de junio de 2020. Publicado: agosto de 2020. RESUMEN Antecedentes: La Selva Zoque de Los Chimalapas se encuentra en la región del Istmo de Tehuantepec, principalmente en los municipios de San Miguel Chimalapa y Santa María Chimalapa en el estado de Oaxaca, es considerada una de las últimas áreas mejor conservadas en México, así como un centro de diversidad botánica y faunística. Objetivo: Inventariar la ictiofauna de la Selva de Santa María Chimalapa para contribuir al conocimiento de este grupo en la región. Métodos: Los muestreos se realizaron empleando diversas artes de pesca, en los principales ríos y tributarios que se encuentran en el municipio. Resultados: Se recolecta- ron 2,430 peces, correspondientes a 38 especies, agrupadas en 31 géneros, 19 familias y 12 órdenes. Las 1 Laboratorio de Zoología, Facultad de familias con la mayor riqueza específica fueron Cichlidae y Poeciliidae con nueve y seis especies.Priapella Estudios Superiores Iztacala, Universi- intermedia fue la especie más abundante (30.1% del total), seguida por Astyanax finitimus (13.3%) y Pseudo- dad Nacional Autónoma de México. Av. xiphophorus bimaculatus (10.3%). Con respecto a los aspectos biogeográficos del conjunto íctico, se observó de Los Barrios No. 1, Col.
    [Show full text]
  • The Isthmus of Tehuantepec Corridor: Public-Private Partnerships and Territorial Impacts in Mexico
    The Isthmus of Tehuantepec Corridor: Public-Private Partnerships and territorial impacts in Mexico ISABEL CLAVIJO FLÓREZ August, 2020 DAWN Discussion Paper #24 discussion for ©2020 by DAWN under a Creative Commons Attribution-NonCommercial- NoDerivatives 4.0 International license. (CC BY-NC-ND 4.0) DRAFTThis paper is part of an international research effort by feminist authors from the Global South. The DAWN Discussion Papers are intended to generate wide-ranging debate and discussion of ongoing analysis under different themes on which DAWN works. The papers are made available prior to finalisation as part of our mission to inform, network and mobilise. Feedback and comments are welcome and may be sent to [email protected] This paper may be used freely without modification and with clear referencing to the author and DAWN. Isabel Clavijo Flórez. 2020. The Isthmus of Tehuantepec Corridor: Public-Private Partnerships and territorial impacts in Mexico. DAWN. Suva (Fiji). THE ISTHMUS OF TEHUANTEPEC CORRIDOR: Public-Private Partnerships and territorial impacts in Mexico discussion for DRAFT Author: Isabel Clavijo Flórez Research Director: Maria Julieta Lamberti July, 2020 1 ABSTRACT The Inter-Oceanic Corridor of the Isthmus of Tehuantepec is a megaproject proposed by the government of Andrés Manuel Lopez Obrador that focuses on the construction of infrastructure and energy projects among which is the rehabilitation of the Isthmus Railway and the construction, maintenance and operation of the Jáltipan Salina Cruz gas pipeline. The aim is to put into operation an electric train and a 247 km gas pipeline to expand gas production in the region. Both projects are developed under the Public Private Partnership (PPP) scheme and have foreign investment.
    [Show full text]
  • RESTLESS BLOOD Frans Blom, Explorer and Maya Archaeologist
    RESTLESS BLOOD Frans Blom, Explorer and Maya Archaeologist High resolution version and version in single pages for printing available at www.mesoweb.com/publications/Blom Tore Leifer Jesper Nielsen Toke Sellner Reunert RESTLESS BLOOD Frans Blom,Explorer and Maya Archaeologist With a preface by Michael D. Coe Middle American Research Institute Tulane University, New Orleans Precolumbia Mesoweb Press San Francisco Contents 6 Author biographies 7 Acknowledgements 8 Preface by Michael D. Coe 10 Introduction: A Life 13 Chapter 1. A Wealthy Merchant’s Son (1893-1919) 38 Chapter 2. Revolution and Rebels (1919) 58 Chapter 3. Oil, Jungles and Idols of Stone (1919-1922) 90 Chapter 4. The Right Track (1922-1924) 120 Chapter 5. The Great Expeditions (1925-1931) 163 Chapter 6. A Temple in Tulane (1932-1943) 197 Chapter 7. Return to the Great Forests (1943-1944) 219 Chapter 8. A Lady in Gray Flannel (1944-1950) 262 Chapter 9. Na Bolom – House of the Jaguar (1950-1963) 288 Epilogue: The Cross from Palenque 290 Archival Sources 290 End Notes 297 Illustration Credits 298 Bibliography 308 Index © 2017 The authors, Middle American Research Institute, and Precolumbia Mesoweb Press Translated from Det urolige blod – Biografi om Frans Blom © 2002 The authors and Høst & Søn / Rosinante & Co, Copenhagen All rights reserved Translated by Julie Nehammer Knub and the authors Produced and designed by Joel Skidmore and Chip Breitwieser Library of Congress Control Number 2017952616 ISBN 978-0-9859317-4-2 Printed in the United States of America 6 7 Acknowledgements This book could not have been written without the enthusiasm and generous help of the American documentary filmmaker Jaime Kibben, who Author Biographies was killed in a tragic car accident in 2003, just two months after its initial Tore Leifer (1964), MA in Musicology, Film, and Media from the University publication in Danish.
    [Show full text]
  • Chapter Eleven Mail Via Tehuantepec, 1858-1859
    Chapter Eleven Mail Via Tehuantepec, 1858-1859 As the September 30, 1859 expiration of the ten-year transcontinental mail contracts via Panama approached, the Post Office Department feverishly experimented with less expensive alternatives. In 1857-58, seven different transcontinental routes were given mail contracts or had their contract terms improved: • The San Diego-San Antonio overland route contract was signed on June 22, 1857 • The Butterfield overland route contract was signed on September 16, 1857 • The Missouri-Salt Lake City overland route contract was upgraded to weekly on April 8, 1858 • The Neosho, Missouri-Albuquerque overland route contract was signed on May 27, 1858 • The Kansas City-Stockton overland route contract was signed on May 28, 1858 • The Tehuantepec route contract was signed on June 8, 1858 • The Placerville-Salt Lake City overland route contract was upgraded to weekly on June 19, 1858 With the exception of the Butterfield contract, all of these contracts were terminated or significantly cut back by the end of 1859. This chapter describes the background and operation of the Tehuantepec route contract, which was one of the contracts not renewed in 1859. The Route via Tehuantepec In the search for an easy and inexpensive route between the Atlantic and Pacific Oceans, Mexico’s Isthmus of Tehuantepec had long attracted much attention. The Isthmus forms a narrow neck between two ranges of the Sierra Madre Mountains and abuts the Gulf of Mexico at its northern extremity, with easy access to New Orleans. This route, roughly four thousand miles in length, is about two thousand miles shorter than the Panama route (described in Chapter Six).
    [Show full text]
  • 00012-2009 ( .Pdf )
    This issue of Lankesteriana is dedicated to the memory of the great Mexican botanist and orchidologist, MIGUEL ÁNGEL SOTO ARENAS (1963—2009), tragically murdered in Mexico on August 27th, 2009 ISSN 1409-3871 VOL. 9, No. 3 JANUARY 2010 Miguel Ángel Soto Arenas (1963-2009) EDUARDO A. PÉREZ GARCÍA & ERIC HÁGSATER 269 In memoriam: Miguel Ángel Soto Arenas (1963-2009) ERIC HÁGSATER 273 Miguel Ángel Soto Arenas: publications and main conferences (1983-2009) 276 A new species of Vanilla from South America MIGUEL A. SOTO ARENAS† 281 A revision of the mexican and Central American species of Vanilla Plum. ex Mill. with a characterization of their ITS region of the nuclear ribosomal DNA MIGUEL A. SOTO ARENAS† & ROBERT L. DRESSLER 285 A new infrageneric classification and synopsis of the genus Vanilla Plum. ex Mill. (Orchidaceae, Vanillinae) MIGUEL A. SOTO ARENAS† & PHILLIP CRIBB 355 Comparettia sotoana (Orchidaceae: Oncidiinae), a new Ecuadorian species FRANCO PUPULIN & GILBERTO MERINO 399 Confusion in Epidendrum brenesii Schltr., and a new Costa Rican species: Epidendrum sotoanum (Orchidaceae: Laeliinae) ADAM P. KARREMANS & ERIC HÁGSATER 403 Oncidium ornithorhynchum, una especie mal interpretada y un nombre para una vieja especie: Oncidium sotoanum (Orchidaceae) ROLANDO JIMÉNEZ MACHORRO & ERIC HÁGSATER 411 Two new species of Lepanthes from Costa Rica close to L. schizocardia (Orchidaceae: Pleurothallidinae) FRANCO PUPULIN, DIEGO BOGARÍN & CHRISTINA M. SMITH 423 Stanhopeinae Mesoamericanae, V. Las Stanhopea de México GÜNTER GERLACH 431 continues
    [Show full text]
  • Descriptions
    **ccfwsbookletFINAL 12/14/00 12:47 PM Page 2 This booklet may be obtained from the U.S. Fish and Wildlife Service Division of Bird Habitat Conservation 4401 N. Fairfax Drive, Suite 110 Arlington, Virginia 22203 Phone (703) 358-1784 Printed on recycled paper. **ccfwsbookletFINAL 12/14/00 12:48 PM Page 3 North American Bird Conservation Initiative Bird Conservation Region Descriptions A Supplement to the North American Bird Conservation Initiative Bird Conservation Regions Map U.S. NABCI Committee September 2000 **ccfwsbookletFINAL 12/14/00 12:48 PM Page 4 This booklet is a supplement to the North American Bird Conservation Initiative Bird Conservation Regions map. Both are available through the U.S. Fish and Wildlife Service Division of Bird Habitat Conservation 4401 N. Fairfax Drive, Suite 110 Arlington, Virginia 22203 Phone: (703) 358-1784 Acknowledgments The U.S. NABCI Committee wishes to express its appreciation to the Canadian and Mexican NABCI Committees for preparing descriptions of their countries’ Bird Conservation Regions (BCRs) and for delineating the Canadian and Mexican BCRs seen on the North American Bird Conservation Initiative Bird Conservation Regions Map. Photo Credits Photos from top to bottom: Royal Terns, Stephen C. Delaney, U.S. Environmental Protection Agency; Long-billed Dowitcher, Karen Hollingsworth; Lichtenstein’s Oriole, James C. Leopold; Hooded Mergansers, Karen Hollingsworth. **ccfwsbookletFINAL 12/14/00 12:48 PM Page 5 North American Bird Conservation Initiative Bird Conservation Region Descriptions A Supplement to the North American Bird Conservation Initiative Bird Conservation Regions Map U.S. NABCI Committee September 2000 **ccfwsbookletFINAL 12/14/00 12:48 PM Page 7 Contents Introduction .
    [Show full text]