Is the Frailejon a Life Form Or an Unaffiliated Generic
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Pouchon 2018 Systbiol.Pdf
Syst. Biol. 67(6):1041–1060, 2018 © The Author(s) 2018. Published by Oxford University Press, on behalf of the Society of Systematic Biologists. All rights reserved. For permissions, please email: [email protected] DOI:10.1093/sysbio/syy022 Advance Access publication March 21, 2018 Phylogenomic Analysis of the Explosive Adaptive Radiation of the Espeletia Complex (Asteraceae) in the Tropical Andes , CHARLES POUCHON1,ANGEL FERNÁNDEZ2,JAFET M. NASSAR3,FRÉDÉRIC BOYER1,SERGE AUBERT1 4, ,∗ SÉBASTIEN LAVERGNE1, AND JESÚS MAVÁREZ1 1Laboratoire d’Ecologie Alpine, UMR 5553, Université Grenoble Alpes-CNRS, Grenoble, France; 2Herbario IVIC, Centro de Biofísica y Bioquímica, Instituto Venezolano de Investigaciones Científicas, Apartado 20632, Caracas 1020-A, Venezuela; 3Laboratorio de Biología de Organismos, Centro de Ecología, Instituto Venezolano de Investigaciones Científicas, Apartado 20632, Caracas 1020-A, Venezuela; 4Station alpine Joseph-Fourier, UMS 3370, Downloaded from https://academic.oup.com/sysbio/article-abstract/67/6/1041/4948752 by University of Kansas Libraries user on 30 October 2018 Université Grenoble Alpes-CNRS, Grenoble, France ∗ Correspondence to be sent to: Laboratoire d’Ecologie Alpine, UMR 5553, Université Grenoble Alpes-CNRS, BP 53, 2233 rue de la piscine, 38041 Grenoble Cedex 9, France; E-mail: [email protected]. Serge Aubert: 1966–2015. Received 14 March 2017; reviews returned 28 February 2018; accepted 15 March 2018 Associate Editor: Alexandre Antonelli Abstract.—The subtribe Espeletiinae (Asteraceae), endemic to the high-elevations in the Northern Andes, exhibits an exceptional diversity of species, growth-forms, and reproductive strategies. This complex of 140 species includes large trees, dichotomous trees, shrubs and the extraordinary giant caulescent rosettes, considered as a classic example of adaptation in tropical high-elevation ecosystems. -
Memorial to Carlos Schubert 1938-1994 THO M a S W
Memorial to Carlos Schubert 1938-1994 THO M A S W. DONNELLY Dept, o f Geological Sciences, State University o f New York, Binghamton, NY 13902-6000 Friends of Carlos Schubert Paetow were shocked and saddened upon hearing of his death in Caracas, Venezuela, on July 22, 1994, following an aneurism and a mesenteric stroke. Carlos, a longtime Fellow of the Geological Society of America, was one of the dominant figures of Venezuelan geology, specializing in his later years in neotectonics and in Quaternary geology. His untimely passing leaves a large void in Latin American—and in Quaternary—geology. His publications were voluminous and spanned a wide range of topics, but dominantly centered in Venezuelan studies. Carlos was bom in Hamburg, Germany, on October 9, 1938, and went to Caracas as an infant. He had a youthful interest in many subjects, but not especially in geology. His decision to pursue this field was the result of parental advice that geology and chemistry were the major fields of the future. Because he was uncom fortable with chemistry, he chose geology. Undoubtedly one of his important inspirations was the German explorer Alexander von Humboldt. Indeed, one of Carlos’s most prized possessions was his German 1815 edition of Humboldt’s Travels. In much of Carlos’s later work we can find a thread linking him to the founder of South American earth science. When he completed his high school studies in Caracas in 1957, he faced the problem that Pérez Jiménez, the president of Venezuela, had closed all Venezuelan universities. Fortunately, Carlos was awarded a scholarship from the Shell Oil Company to attend the University of Arizona, where he received his bachelor’s degree in geology in 1961. -
Estudio De La Composición Del Aceite Esencial De Un Frailejón Híbrido
Articulo original Estudio de la composición del aceite esencial de un frailejón híbrido entre Espeletia schultzii y Coespeletia moritziana (Espeletiinae) Composition of the essential oil from a hybrid frailejon between Espeletia schultzii and Coespeletia moritziana (Espeletiinae) Ibáñez Jimena1 y Usubillaga Alfredo 2* 1 Postgrado Interdisciplinario de Química Aplicada, Facultad de Ciencias, Universidad de Los Andes, Mérida, Venezuela. 2 Instituto de Investigaciones, Facultad de Farmacia y Bioanálisis, Universidad de Los Andes, Mérida, Venezuela Recibido octubre 2008 - Aceptado febrero 2009 RESUMEN Aguila, was analyzed by gas chromatography (FID) and GC-MS. It was possible to identify 21 compounds El aceite esencial de una especie híbrida entre in the oil from the leaves, which made up 94.3% of Espeletia schultzii y Coespeletia moritziana, dos the oil and 18 compounds in the oil from the flowering especies de frailejón (Espeletiinae) que crecen stems which made up 93.5% of the oil. The most en el páramo Pico El Águila, se analizó mediante abundant constituent in the oil from the leaves was cromatografía de gases (FID) y cromatografía de α-pinene (30.4%). In the flowering stems α-pinene gases-masas. Se logró identificar 21 compuestos en el was also the most abundant compound (33.4%). aceite obtenido de las hojas que representan un 94,3 Other abundant components were α-phellandrene % y 18 compuestos en el aceite proveniente de los (21.4% and 14.4%), p-cymene (9.7% and 11.0%), tallos florales que constituyen el 93,5%. Tanto en el and β-pinene (9.0% and 10.9%). Monoterpenes aceite de las hojas como en el de los tallos florales, were 84.4% (leaves) and 80.0% (flowering stems) of el componente más abundante fue el α-pineno the hybrid´s oil. -
A New Species of Oidaematophorus (Lepidoptera: Pterophoridae) from Chingaza National Natural Park in Colombia
TENNENT ET AL.: New species of Epimastidia and Paraduba HERNÁNDEZ ET AL.: New species of Oidaematophorus TROP. LEPID. RES., 24(1): 15-21, 2014 15 A NEW SPECIES OF OIDAEMATOPHORUS (LEPIDOPTERA: PTEROPHORIDAE) FROM CHINGAZA NATIONAL NATURAL PARK IN COLOMBIA Linda C. Hernández1, Luz Stella Fuentes2a, Gonzalo E. Fajardo2b, and Deborah L. Matthews3 1Departamento de Entomología, Centro de Bio-Sistemas Universidad Jorge Tadeo Lozano., Bogotá, Colombia, [email protected]; 2Facultad de Ciencias Biológicas e Ingeniería, Universidad Jorge Tadeo Lozano., Bogotá, Colombia, [email protected], [email protected]; 3McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, [email protected] Abstract - Oidaematophorus espeletiae, sp. nov., is described from the Chingaza páramo in Colombia. The life history, external characters of the adult, male and female genitalia, final instar larva, and pupa are described and illustrated. This moth species is widely distributed in the páramo. Larvae cause damage in meristem leaves of frailejones (Espeletia spp., Asteraceae). Identification and continuing studies of this moth are important to determine its potential role in the reported death of numerous frailejones in the area. The hosts, Espeletia grandiflora and E. uribei are some of the keystone species of the páramo ecosytem. Resumen - Se describe Oidaematophorus espeletiae, sp. nov del páramo de Chingaza, Colombia. Se describen e ilustran la historia de vida, caracteres externos del adulto, genitalia de macho y hembra, último instar larval, y pupa. Esta polilla se encuentra ampliamente distribuida en el páramo. Las larvas ocasionan daños en las hojas del meristemo de los frailejones (Espeletia spp., Asteraceae). -
Chromosome Numbers in Compositae, XII: Heliantheae
SMITHSONIAN CONTRIBUTIONS TO BOTANY 0 NCTMBER 52 Chromosome Numbers in Compositae, XII: Heliantheae Harold Robinson, A. Michael Powell, Robert M. King, andJames F. Weedin SMITHSONIAN INSTITUTION PRESS City of Washington 1981 ABSTRACT Robinson, Harold, A. Michael Powell, Robert M. King, and James F. Weedin. Chromosome Numbers in Compositae, XII: Heliantheae. Smithsonian Contri- butions to Botany, number 52, 28 pages, 3 tables, 1981.-Chromosome reports are provided for 145 populations, including first reports for 33 species and three genera, Garcilassa, Riencourtia, and Helianthopsis. Chromosome numbers are arranged according to Robinson’s recently broadened concept of the Heliantheae, with citations for 212 of the ca. 265 genera and 32 of the 35 subtribes. Diverse elements, including the Ambrosieae, typical Heliantheae, most Helenieae, the Tegeteae, and genera such as Arnica from the Senecioneae, are seen to share a specialized cytological history involving polyploid ancestry. The authors disagree with one another regarding the point at which such polyploidy occurred and on whether subtribes lacking higher numbers, such as the Galinsoginae, share the polyploid ancestry. Numerous examples of aneuploid decrease, secondary polyploidy, and some secondary aneuploid decreases are cited. The Marshalliinae are considered remote from other subtribes and close to the Inuleae. Evidence from related tribes favors an ultimate base of X = 10 for the Heliantheae and at least the subfamily As teroideae. OFFICIALPUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution’s annual report, Smithsonian Year. SERIESCOVER DESIGN: Leaf clearing from the katsura tree Cercidiphyllumjaponicum Siebold and Zuccarini. Library of Congress Cataloging in Publication Data Main entry under title: Chromosome numbers in Compositae, XII. -
The Venezuelan Hydrocarbon Habitat, Part 1: Tectonics, Structure, Palaeogeography and Source Rocks
Journal of Petroleum Geology, vo1.23(1), January 2000, pp 5-53. 5 THE VENEZUELAN HYDROCARBON HABITAT, PART 1: TECTONICS, STRUCTURE, PALAEOGEOGRAPHY AND SOURCE ROCKS K. H. James* Venezuela forms part of an important hydrocarbon province, defined by the presence of prolific Cretaceous source rocks, which extends across northern South America. By early 1997, the country had produced 53 billion barrels of oil. Reserves are estimated to total 73 billion barrels of oil and 146 TCF of gas with 250 billion barrels recoverable in the Heavy Oil Belt. Most reserves are located within the intermontane Maracaibo and foreland Barinas-Apure and Eastern Venezuela BasinxThey correspond to more than 1.5 trillion BOE originally in place. The province S hydrocarbon history began with a broad passive margin over which the sea transgressed throughout much ofthe Cretaceous. Limestones and shales followed basal sands and included rich source rocks. Convergence between the distal part of the area and the Caribbean Plate created an active margin that migrated southwards, so that flysch and wildflysch followed the transgressive facies. The process culminated in Lute Cretaceous to Middle Eocene orogeny with the emplacement of southward-vergent nappes and the development of northward-deepeningforedeeps. Flysch and wildflysch formed in the north while important deltaic - paralic reservoir sands accumulated in the south. Major phases of hydrocarbon generationfrom Jurassic-Cretaceoussource rocks occurred across the entire margin of northern South America during the orogeny. They are recorded by Jurassic - Middle Cretaceous graphitic marbles, schists and quartzites (metamorphosed, organic limestones and shales and oil-bearing sandstones) in the Coastal and Northern Ranges of Venezuela and Trinidad. -
Tetonic Inheritance and Structural Styles in the Merida
Third ISAG, St Malo (France), 17-19/9/1996 TECTONIC INHERITANCE AND STRUCTURAL STYLES IN THE MERIDA ANDES (WESTERN VENEZUELA). Bernard COLLETTA( l ) , Franqois ROURE( l) Bruno DE TONI(~),Daniel LOLTREIRO(~)Herminio PASSALACQUA(~)~~~Yves GOU(~). (I hnstitut Franqais du PCtrole, BP3 1 1, 92506 Rueil-Malmaison, France (2)~ntevep,Apartado 76343, Caracas 1070-A, Venezuela (3)~eicipFranlab, 92506 Rueil-Malmaison, France KEY WORDS: Venezuela, Merida Andes, tectonic inversion, crustal scale balanced sections INTRODUCTION Unlike the adjacent Caribbean and Central Andean orogens, the Merida Andes (Fig. 1) do not relate to direct interactions between the South American craton and either arc terranes or oceanic domains, but represent only minor intraplate readjustements between the Eastern Cordillera in the south and the South Caribbean transform margin in the north.Although no deep seismic profiling has yet been attempted across the Venezuelan Andes, a large set of conventional seismic reflection profiles has been recorded by the petroleum industry in the Maracaibo and Barinas-Apure basins, respectively along the North and South Andean foothills. In addition, isolated refraction and magnetotelluric data are available. However, only the gravimetric coverage is really complete, thus providing a relatively coherent image of the basement architecture. STRUCTURE OF THE SOUTH ANDEAN FLANK The Barinas-Apure basin extends from the Andean foothills in the northwest to the Guyana shield in the southeast, thus encompassing most of the drainage area of the Rio Apure, a tributary of the Orinoco River. Southwards, it connects directly with the Llanos basin in Colombia. The Barinas basin hardly compares with a flexural basin. It is largely dominated by either north- or south-verging basement- involved structures. -
Evaluation of Impacts of Potato Crops and Livestock Farming in Neotropical High Andean Páramo Soils, Colombia
(2020) 69 (2) p 106-116 ISSN 0120-2812 | e-ISSN 2323-0118 doi: https://doi.org/10.15446/acag.v69n2.82206 Evaluation of impacts of potato crops and livestock farming in Neotropical high Andean Páramo soils, Colombia Evaluación de impactos del cultivo de papa y la explotación ganadera en suelos de Páramo Neotropical alto Andino, Colombia María-Alejandra Farfán 1; Sandra-Milena Forero 2; Lizeth-Manuela Avellaneda-Torres 3 1 Universidad Libre. [email protected] 2 Universidad Libre. [email protected] 3 Universidad Libre. [email protected]; [email protected] Rec.: 11-09-2019 Acep.:17-02-2020 Resumen Los Páramos son ecosistemas neotropicales resultantes de formaciones insulares dominadas por gramíneas en matojo y matorrales que se encuentran por encima de la línea de bosque continua y por debajo de la línea de nieves perpetuas de las cumbres más altas de los Andes Septentrionales. El objetivo de esta investigación fue evaluar las hipótesis existentes sobre el impacto que el cultivo de papa y la explotación ganadera tienen en la calidad de los suelos de Páramo. Para ello, se realizaron muestreos en tres usos del suelo a dos alturas diferentes: Páramo con la menor intervención posible y Páramo donde se realizan las actividades de cultivo de papa y explotación ganadera, en los que se determinaron las propiedades fisicoquímicas, abundancia de grupos funcionales de microorganismos (fijadores de nitrógeno, solubilizadores de fosfato, celulolíticos) y actividades enzimáticas (ureasa, proteasa, β-glucosidasa, fosfatasa ácida y alcalina). La humedad gravimétrica, la densidad aparente, el carbono orgánico, la capacidad de intercambio catiónico, la ureasa, la fosfatasa ácida y la β-glucosidasa mostraron diferencias estadísticamente significativas (P < 0.05), lo cual indica que la calidad del suelo expuesto a actividades agrícolas y ganaderas está siendo modificada. -
Declive Y Muerte De Los Frailejones En Los Ecosistemas Alpinos De Los
Declive y muerte de los frailejones en los ecosistemas alpinos de los Andes del Norte: Modelo Conceptual Decline and death of Espeletia species in the tropical alpine ecosystem of the Northern Andes: A conceptual model PREPRINT Artículo de Revisión Crítica 1,2 3 3 Oscar Burbano-Figueroa , Eliana Galindez-Chicaíza , Alfonso Javier Benítez-Arteaga , Angela Vanessa Alvarez 3 4 4 4 Coral , Carlos Arturo Florez Casanova , Carlos Arturo Betancourth- García , Claudia Salazar -González , Arturo 5 3 David-Figueroa , y Luz Estela Lagos Mora * Resumen Introducción: Los ecosistemas alpinos en el trópico son islas en las alturas, ambientes sin continuidad espacial ubicados a altitudes de más de 3000 - 5000 msnm, entre la línea de bosque y la línea de nieves perpetuas. Los ecosistemas alpinos tropicales de mayor extensión y riqueza se encuentran distribuidos en las regiones montañosas ecuatoriales de Sudamérica, África Oriental y Nueva Guinea. Estos ecosistemas son dominados en cada continente por plantas de rosetas gigantes de varias especies vegetales no relacionadas filogenéticamente. Esta extraña arquitectura vegetal es el resultado de la adaptación al proceso diario de congelamiento y descongelamiento que ocurre en los hábitats alpinos tropicales y que ha resultado en convergencia evolutiva. En los Andes, estos ecosistemas han recibido el nombre de páramos. En la última década se han reportado problemas fitosanitarios en especies del género Espeletia, despertado el interés por comprender la causa o causas de estas afectaciones y desarrollar estrategias de manejo y control de los posibles patógenos involucrados. Objetivo: Desarrollar un modelo conceptual que recolecta, organiza y combina el conocimiento (conceptos e hipótesis propuestas) relacionado con la muerte y declive de los frailejones en las ecosistemas alpinos tropicales de los Andes del Norte. -
Late Quaternary Deglacial History of the Mérida Andes, Venezuela
JOURNAL OF QUATERNARY SCIENCE (in press) Copyright ß 2007 John Wiley & Sons, Ltd. Published online in Wiley InterScience (www.interscience.wiley.com) DOI: 10.1002/jqs.1109 Correspondence the terminal and lateral moraines of the El Caballo and Reply: Late Quaternary deglacial La Mucuchache glaciers. A chemically untreated organic history of the Me´rida Andes, sample from 1.5 m above the base of the section yielded a conventional age of 22 750 cal. yr BP (19 000 14C yr BP), Venezuela: response whereas a peat sample immediately below the top of the section yielded an age of 19 960 cal. yr BP (16 500 14C yr BP). to comment We recognise that other workers (e.g. Mahaney et al., 2001, 2004; Dirszowsky et al., 2005) have re-analysed the Pedregal fan complex. For example, the sedimentology was described in detail by Dirszowsky et al. (2005). However, the chronology in We welcome the opportunity to respond to Mahaney et al.’s these papers is questionable and not useful for constraining the critique of our article on the deglacial history of the LGM. All of the recently published dates are on refractory Venezuelan Andes (Stansell et al., 2005). The source of our organic matter isolated using a cellulose extraction technique disagreement appears to stem primarily from differences in which concentrates refractory carbon, resulting in ages research strategies and methodology. Our work in the between 47 000 and 60 000 14C yr BP. These ages include mul- Venezuelan Andes employs lake sediment archives that record tiple reversals and are at the very edge of interpretability as continuous sedimentary sequences and can be dated using finite radiocarbon ages; nonetheless, the authors have inter- accelerator mass spectrometry (AMS) radiocarbon dating of preted them as valid ages. -
Asteraceae Del Valle Morrénico De Mucubají, Estado Mérida, Venezuela
Rev. Fac. Agron. (LUZ). 2010, 27: 39-60 Asteraceae del Valle Morrénico de Mucubají, estado Mérida, Venezuela Asteraceae of Morrenic Valley in Mucubají, Mérida State, Venezuela Y. Vivas y P. Ubiergo Fundación Instituto Botánico de Venezuela. Jardín Botánico de Caracas. Apdo. 2156. Caracas 1010-A. Resumen Dada la importancia de la familia Asteraceae en el páramo, se estudió la diversidad de especies de dicho grupo en el área que ocupa el Valle del Complejo Morrénico de Mucubají, a fin de contribuir al conocimiento, valoración y promo- ción de la conservación de los recursos de la flora de los páramos en Venezuela. Se recolectaron exhaustivamente muestras, en estado reproductivo, de las especies de Asteraceae durante visitas mensuales en un lapso de año y medio, lo que resultó en la recolección e identificación de 20 especies, incluidas en quince géne- ros, pertenecientes a cinco tribus. Se presenta una clave dicotómica para la de- terminación de las especies presentes en el área ocupada por el valle morrénico de Mucubají, así como el listado de las mismas con información general. El género con mayor diversidad fue Gnaphalium representando un 15% del total reportado, seguido de Pentacalia con un 10%, mientras que el resto presentó sólo una espe- cie. Palabras clave: Asteraceae, Mérida, Mucubají, páramo, Venezuela. Abstract Taking into account the importance of the Asteraceae family in moorland, the diversity of species was studied in the area occupied by the Valley of the "Morrenic" Complex in "Mucubají", with the purpose of contributing to knowledge, and promotion moorland floral resources conservation in Venezuela. The traditional methodology for floral studies was used, monthly collecting Asteraceae specimens during a year and a half, that resulted in the collection and identification of 20 species, included in fifteen genus, belonging to five tribes. -
Diversidad De Plantas Y Vegetación Del Páramo Andino
Plant diversity and vegetation of the Andean Páramo Diversidad de plantas y vegetación del Páramo Andino By Gwendolyn Peyre A thesis submitted for the degree of Doctor from the University of Barcelona and Aarhus University University of Barcelona, Faculty of Biology, PhD Program Biodiversity Aarhus University, Institute of Bioscience, PhD Program Bioscience Supervisors: Dr. Xavier Font, Dr. Henrik Balslev Tutor: Dr. Xavier Font March, 2015 Aux peuples andins Summary The páramo is a high mountain ecosystem that includes all natural habitats located between the montane treeline and the permanent snowline in the humid northern Andes. Given its recent origin and continental insularity among tropical lowlands, the páramo evolved as a biodiversity hotspot, with a vascular flora of more than 3400 species and high endemism. Moreover, the páramo provides many ecosystem services for human populations, essentially water supply and carbon storage. Anthropogenic activities, mostly agriculture and burning- grazing practices, as well as climate change are major threats for the páramo’s integrity. Consequently, further scientific research and conservation strategies must be oriented towards this unique region. Botanical and ecological knowledge on the páramo is extensive but geographically heterogeneous. Moreover, most research studies and management strategies are carried out at local to national scale and given the vast extension of the páramo, regional studies are also needed. The principal limitation for regional páramo studies is the lack of a substantial source of good quality botanical data covering the entire region and freely accessible. To meet the needs for a regional data source, we created VegPáramo, a floristic and vegetation database containing 3000 vegetation plots sampled with the phytosociological method throughout the páramo region and proceeding from the existing literature and our fieldwork (Chapter 1).