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Cytotaxonomy of the Genus Echinochloa in Louisiana. James Howard Brooks Louisiana State University and Agricultural & Mechanical College
Louisiana State University LSU Digital Commons LSU Historical Dissertations and Theses Graduate School 1969 Cytotaxonomy of the Genus Echinochloa in Louisiana. James Howard Brooks Louisiana State University and Agricultural & Mechanical College Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_disstheses Recommended Citation Brooks, James Howard, "Cytotaxonomy of the Genus Echinochloa in Louisiana." (1969). LSU Historical Dissertations and Theses. 1640. https://digitalcommons.lsu.edu/gradschool_disstheses/1640 This Dissertation is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Historical Dissertations and Theses by an authorized administrator of LSU Digital Commons. For more information, please contact [email protected]. This dissertation has been microfilmed exactly as received 70-9040 BROOKS, James Howard, 1932- CYTOTAXONOMY OF THE GENUS ECHINOCHLOA i IN LOUISIANA. j The Louisiana State University and Agricultural and Mechanical College, Ph.D., 1969 Agronomy University Microfilms, Inc., Ann Arbor, Michigan CYTOTAXONOMY OF THE GENUS ECHINOCHLOA IN LOUISIANA A Dissertation Submitted to the Graduate Faculty of the Louisiana State University Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Department of Botany and Plant Pathology by James Howard Brooks B.S., Stephen F. Austin State College, 1957 M .S., Stephen F. Austin State College, 1964 ACKNOWLEDGEMENTS The author wishes to express his sincere appreciation to Dr. Clair A. Brown for serving as chairman of his committee, for aid in selecting the problem, guidance throughout the study, and helpful suggestions for improving the manuscript and companionship during some of the collecting trips. -
Amphibian Alliance for Zero Extinction Sites in Chiapas and Oaxaca
Amphibian Alliance for Zero Extinction Sites in Chiapas and Oaxaca John F. Lamoreux, Meghan W. McKnight, and Rodolfo Cabrera Hernandez Occasional Paper of the IUCN Species Survival Commission No. 53 Amphibian Alliance for Zero Extinction Sites in Chiapas and Oaxaca John F. Lamoreux, Meghan W. McKnight, and Rodolfo Cabrera Hernandez Occasional Paper of the IUCN Species Survival Commission No. 53 The designation of geographical entities in this book, and the presentation of the material, do not imply the expression of any opinion whatsoever on the part of IUCN concerning the legal status of any country, territory, or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. The views expressed in this publication do not necessarily reflect those of IUCN or other participating organizations. Published by: IUCN, Gland, Switzerland Copyright: © 2015 International Union for Conservation of Nature and Natural Resources Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale or other commercial purposes is prohibited without prior written permission of the copyright holder. Citation: Lamoreux, J. F., McKnight, M. W., and R. Cabrera Hernandez (2015). Amphibian Alliance for Zero Extinction Sites in Chiapas and Oaxaca. Gland, Switzerland: IUCN. xxiv + 320pp. ISBN: 978-2-8317-1717-3 DOI: 10.2305/IUCN.CH.2015.SSC-OP.53.en Cover photographs: Totontepec landscape; new Plectrohyla species, Ixalotriton niger, Concepción Pápalo, Thorius minutissimus, Craugastor pozo (panels, left to right) Back cover photograph: Collecting in Chamula, Chiapas Photo credits: The cover photographs were taken by the authors under grant agreements with the two main project funders: NGS and CEPF. -
Evolution of Oviductal Gestation in Amphibians MARVALEE H
THE JOURNAL OF EXPERIMENTAL ZOOLOGY 266394-413 (1993) Evolution of Oviductal Gestation in Amphibians MARVALEE H. WAKE Department of Integrative Biology and Museum of Vertebrate Zoology, University of California,Berkeley, California 94720 ABSTRACT Oviductal retention of developing embryos, with provision for maternal nutrition after yolk is exhausted (viviparity) and maintenance through metamorphosis, has evolved indepen- dently in each of the three living orders of amphibians, the Anura (frogs and toads), the Urodela (salamanders and newts), and the Gymnophiona (caecilians). In anurans and urodeles obligate vivi- parity is very rare (less than 1%of species); a few additional species retain the developing young, but nutrition is yolk-dependent (ovoviviparity) and, at least in salamanders, the young may be born be- fore metamorphosis is complete. However, in caecilians probably the majority of the approximately 170 species are viviparous, and none are ovoviviparous. All of the amphibians that retain their young oviductally practice internal fertilization; the mechanism is cloaca1 apposition in frogs, spermato- phore reception in salamanders, and intromission in caecilians. Internal fertilization is a necessary but not sufficient exaptation (sensu Gould and Vrba: Paleobiology 8:4-15, ’82) for viviparity. The sala- manders and all but one of the frogs that are oviductal developers live at high altitudes and are subject to rigorous climatic variables; hence, it has been suggested that cold might be a “selection pressure” for the evolution of egg retention. However, one frog and all the live-bearing caecilians are tropical low to middle elevation inhabitants, so factors other than cold are implicated in the evolu- tion of live-bearing. -
Nectophrynoides Tornieri (Anura: Bufonidae) in the Amani Nature Reserve, Tanzania“
DIPLOMARBEIT Titel der Diplomarbeit „The „push-up“ as a calling posture in Nectophrynoides tornieri (Anura: Bufonidae) in the Amani Nature Reserve, Tanzania“ Verfasserin Iris Starnberger angestrebter akademischer Grad Magistra der Naturwissenschaften (Mag.rer.nat.) Wien, 2011 Studienkennzahl lt. A 439 Studienblatt: Studienrichtung lt. Diplomstudium Zoologie (Stzw) UniStG Studienblatt: Betreuerin / Betreuer: Ao. Univ.-Prof. Mag. Dr. Walter Hödl Für meine Eltern und meine Schwester Sonja, die mich immer liebevoll unterstützt und ermutigt haben. 2 Table of Contents INTRODUCTION .............................................................................................................................................4 MATERIALS AND METHODS.......................................................................................................................8 STUDY SITE ......................................................................................................................................................................... 8 EXPERIMENTAL DESIGN ................................................................................................................................................... 8 HABITAT FEATURES....................................................................................................................................................... 10 DATA ANALYSIS ............................................................................................................................................................. -
FULL ACCOUNT FOR: Urochloa Maxima Global Invasive Species Database (GISD) 2021. Species Profile Urochloa Maxima. Available From
FULL ACCOUNT FOR: Urochloa maxima Urochloa maxima System: Terrestrial Kingdom Phylum Class Order Family Plantae Magnoliophyta Liliopsida Cyperales Poaceae Common name buffalograss (English), green panic (English), tinikarati (English, Cook Islands), capime guiné (French), panic élevé (French), zacate Guinea (English), vao Kini (English, Samoa), vao Kini (English, American Samoa), talapi (English, Cook Islands), Guinea grass (English), fataque (French), saafa (English, Tonga), yerba de Guinea (English), herbe de Guinéa (French) Synonym Panicum maximum , Jacq. Panicum gongylodes , Jacq. Panicum hirsutissimum , Steud. Panicum jumentorum , Pers. Panicum laeve , Lam. Panicum maximum , var. coloratum C.T. White Panicum maximum , var. maximum Panicum maximum , var. pubiglume K. Schum. Panicum maximum , var. trichoglume Robyns Panicum polygamum , var. gongylodes (Jacq.) E. Fourn. Panicum trichocondylum , Steud. Urochloa maxima , var. trichoglumis (Robyns) R.D. Webster Panicum maximum , var. gongylodes (Jacq.) Döll Similar species Summary Although Urochloa maxima is the accepted name for this species, it is still widely known as Panicum maximum. Urochloa maxima is a native of tropical Africa where it occurs from sea level to 1,800m. It is used as a forage grass and its ability to tolerate a wide range of habitats make it a very productive species. Urochloa maxima has become prevalent in Samoa and Tonga and it is a problem species in Guam and Hawaii. Although it is a favourable grass in many areas it can also form dense stands and displace native -
Common Carpetgrass (Axonopus Fissifolius)
Weed Technology Common carpetgrass (Axonopus fissifolius) www.cambridge.org/wet control with POST herbicides Gerald Henry1, Christopher Johnston2, Jared Hoyle3, Chase Straw4 and Kevin Tucker5 Research Article 1Professor, Department of Crop and Soil Sciences, University of Georgia, Athens, GA, USA; 2Graduate student, Cite this article: Henry G, Johnston C, Hoyle J, Department of Crop and Soil Sciences, University of Georgia, Athens, GA, USA; 3Assistant Professor, Department Straw C, Tucker K (2019) Common carpetgrass of Horticulture and Natural Resources, Kansas State University, Manhattan, KS, USA; 4Postdoctoral Research (Axonopus fissifolius) control with POST 5 herbicides. Weed Technol. doi: 10.1017/ Associate, Department of Horticultural Science, University of Minnesota, St. Paul, MN, USA and Research wet.2019.17 Associate, Department of Crop and Soil Sciences, University of Georgia, Athens, GA, USA Received: 18 August 2018 Abstract Revised: 22 February 2019 Accepted: 25 February 2019 Reductions in MSMA use for weed control in turfgrass systems may have led to increased common carpetgrass infestations. The objective of our research was to identify alternative Associate Editor: POST herbicides for control of common carpetgrass using field and controlled-environment Scott McElroy, Auburn experiments. Field applications of MSMA (2.2 kg ai ha−1) and thiencarbazone þ iodosulfuron þ −1 Keywords: dicamba (TID) (0.171 kg ai ha ) resulted in the greatest common carpetgrass control 8 wk Golf course; weed management after initial treatment (WAIT): 94% and 91%, respectively. Thiencarbazone þ foramsulfuron þ halosulfuron (TFH) (0.127 kg ai ha−1) applied in the field resulted in 77% control 8 WAIT, Nomenclature ≤ Dicamba; foramsulfuron; halosulfuron; whereas all other treatments were 19% effective at 8 WAIT. -
Rapid Pace of Species Extinctions Mounts to a 'Crisis'
Rapid Pace of Species Extinctions Mounts to a 'Crisis' GLAND, Switzerland, November 3, 2009 (ENS) - Nearly one-third of all known species of plants and animals are threatened with extinction, finds the International Union for the Conservation of Nature, IUCN, in the most recent update of its authoritative Red List of Threatened Species� issued today. The updated assessment shows that 17,291 species out of the 47,677 assessed species are threatened with extinction. "The scientific evidence of a serious extinction crisis is mounting," warns Jane Smart, director of IUCN's Biodiversity Conservation Group. The IUCN finds that 21 percent of all known mammals, 30 percent of all known amphibians, 12 percent of all known birds, and 28 percent of reptiles, 37 percent of freshwater fishes, 70 percent of plants, 35 percent of invertebrates assessed so far are at risk. "This year's IUCN Red List makes for sobering reading," says Craig Hilton-Taylor, manager of the IUCN Red List Unit. "These results are just the tip of the iceberg. We have only managed to assess 47,663 species so far; there are many more millions out there which could be under serious threat." "We do, however, know from experience that conservation action works so let's not wait until it's too late and start saving our species now," urged Hilton- Taylor. Threatened by climate change, the hooded grebe, Podiceps gallardoi, of Argentina, was "January sees the launch of the International Year of uplisted from Near Threatened to Biodiversity, said Smart. "The latest analysis of the Endangered in 2009. -
Biodiversity in Sub-Saharan Africa and Its Islands Conservation, Management and Sustainable Use
Biodiversity in Sub-Saharan Africa and its Islands Conservation, Management and Sustainable Use Occasional Papers of the IUCN Species Survival Commission No. 6 IUCN - The World Conservation Union IUCN Species Survival Commission Role of the SSC The Species Survival Commission (SSC) is IUCN's primary source of the 4. To provide advice, information, and expertise to the Secretariat of the scientific and technical information required for the maintenance of biologi- Convention on International Trade in Endangered Species of Wild Fauna cal diversity through the conservation of endangered and vulnerable species and Flora (CITES) and other international agreements affecting conser- of fauna and flora, whilst recommending and promoting measures for their vation of species or biological diversity. conservation, and for the management of other species of conservation con- cern. Its objective is to mobilize action to prevent the extinction of species, 5. To carry out specific tasks on behalf of the Union, including: sub-species and discrete populations of fauna and flora, thereby not only maintaining biological diversity but improving the status of endangered and • coordination of a programme of activities for the conservation of bio- vulnerable species. logical diversity within the framework of the IUCN Conservation Programme. Objectives of the SSC • promotion of the maintenance of biological diversity by monitoring 1. To participate in the further development, promotion and implementation the status of species and populations of conservation concern. of the World Conservation Strategy; to advise on the development of IUCN's Conservation Programme; to support the implementation of the • development and review of conservation action plans and priorities Programme' and to assist in the development, screening, and monitoring for species and their populations. -
Taxonomic Checklist of Amphibian Species Listed in the CITES
CoP17 Doc. 81.1 Annex 5 (English only / Únicamente en inglés / Seulement en anglais) Taxonomic Checklist of Amphibian Species listed in the CITES Appendices and the Annexes of EC Regulation 338/97 Species information extracted from FROST, D. R. (2015) "Amphibian Species of the World, an online Reference" V. 6.0 (as of May 2015) Copyright © 1998-2015, Darrel Frost and TheAmericanMuseum of Natural History. All Rights Reserved. Additional comments included by the Nomenclature Specialist of the CITES Animals Committee (indicated by "NC comment") Reproduction for commercial purposes prohibited. CoP17 Doc. 81.1 Annex 5 - p. 1 Amphibian Species covered by this Checklist listed by listed by CITES EC- as well as Family Species Regulation EC 338/97 Regulation only 338/97 ANURA Aromobatidae Allobates femoralis X Aromobatidae Allobates hodli X Aromobatidae Allobates myersi X Aromobatidae Allobates zaparo X Aromobatidae Anomaloglossus rufulus X Bufonidae Altiphrynoides malcolmi X Bufonidae Altiphrynoides osgoodi X Bufonidae Amietophrynus channingi X Bufonidae Amietophrynus superciliaris X Bufonidae Atelopus zeteki X Bufonidae Incilius periglenes X Bufonidae Nectophrynoides asperginis X Bufonidae Nectophrynoides cryptus X Bufonidae Nectophrynoides frontierei X Bufonidae Nectophrynoides laevis X Bufonidae Nectophrynoides laticeps X Bufonidae Nectophrynoides minutus X Bufonidae Nectophrynoides paulae X Bufonidae Nectophrynoides poyntoni X Bufonidae Nectophrynoides pseudotornieri X Bufonidae Nectophrynoides tornieri X Bufonidae Nectophrynoides vestergaardi -
Addis Ababa University Science Faculty School of Graduate Studies Department of Environmental Science Zoology Module
ADDIS ABABA UNIVERSITY SCIENCE FACULTY SCHOOL OF GRADUATE STUDIES DEPARTMENT OF ENVIRONMENTAL SCIENCE ZOOLOGY MODULE AN INVESTIGATION OF AMPHIBIAN DIVERSITY AND ABUNDANCE IN RELATION TO ENVIRONMENTAL CHANGE IN HARENNA FOREST, BALE MOUNTAINS NATIONAL PARK, ETHIOPIA A Thesis Submitted to the School of Graduate Studies of Addis Ababa University, in Partial Fulfillment of the Requirements for the Degree of Master of Environmental Science By Roman Kassahun Advisors: Professor Samy A.Saber, A.A.U. Ethiopia Dr. Simon Loader, Institute of Biogeography, Basel, Switzerland July, 2009 ADDIS ABABA UNIVERSITY SCHOOL OF GRADUATE STUDIES An investigation of Amphibian diversity and abundance in relation to environmental change in Harenna Forest, Bale Mountains National Park. By Roman Kassahun A Thesis presented to the School of Graduate Studies of Addis Ababa University, in partial fulfillment of the requirements for the Degree of Master of Environmental Science Approved by Examining Board: _______________________ _____________ _____________________________ ________________ _____________________________ ________________ ______________________________ ________________ Acknowledgement I owe my sincere gratitude to my adviser Prof Samy A. Saber for his advice and encouragement prior to the start of research work and for his enormously consistent and valuable guidance and advice without which this research project would not have been realized. I am also grateful to my Co-advisor Dr. Simon Loader from the University of Basel, for the logistical support and great help during the wet season of the project, for his guidance in the identifications of the specimens and for giving me this opportunity in the first place. My gratitude also goes to the Ethiopian Wild Life Conservation Authority (EWCA) for allowing me to pursue the M.S.C. -
Crash Intro to SIS Version 1.0.Pdf
Crash Intro to SIS 1 A CRASH INTRODUCTION TO IUCN’S SPECIES INFORMATION SERVICE (SIS) SYSTEM Version 1.0 February 2009 Table of contents Page What is SIS?................................................................................................................................... 1 Browser requirements.................................................................................................................... 2 The SIS Interface........................................................................................................................... 2 Editing data on taxa that are already in SIS ................................................................................ 4 How to create a New Assessment .................................................................................................. 8 Creating a new Working Dataset................................................................................................. 11 Adding a new taxon to SIS .......................................................................................................... 15 Editing newly entered taxa .......................................................................................................... 18 Generating reports ....................................................................................................................... 19 Current SIS issues being addressed ............................................................................................ 20 Please note that this is a working document subject to -
Summary Record of the 26Th Meeting of the Animals Committee
Original language: English AC26 summary record CONVENTION ON INTERNATIONAL TRADE IN ENDANGERED SPECIES OF WILD FAUNA AND FLORA ____________ Twenty-sixth meeting of the Animals Committee Geneva (Switzerland), 15-20 March 2012 and Dublin (Ireland), 22-24 March 2012 SUMMARY RECORD Animals Committee matters 1. Opening of the meeting The Chair opened the meeting and welcomed all participants, before giving the floor to the Secretary- General, who also welcomed everyone and introduced new members of the Secretariat's scientific team (Mr De Meulenaer and Ms Kwitsinskaia) and enforcement team (Ms Garcia Ferreira, Ms Jonsson and Mr van Rensburg). He wished the Committee well in its deliberations. The Chair thanked the Secretary-General and invited suggestions as to how the Conference of the Parties could establish stronger measures to support the Committee as well as export countries, which deserved particular assistance. No other intervention was made during discussion of this item.1 2. Rules of Procedure The Secretariat introduced document AC26 Doc. 2 and proposed amending Rule 22 as follows: “On request, the Secretariat shall distribute printed and translated documents...”. The Secretariat explained that most members regularly indicated that they did not need printed copies and that this proposal was made to reduce costs. Although not opposed to the change in principle, a Party regretted that the suggestion had not been presented in the document, which would have given Parties time to consider it, and was concerned that this unannounced proposal might create a precedent. Another Party asked a question on the procedure to accept observers, but the Chair invited it to raise this topic under agenda item 4 on Admission of observers.