Biodiversity-Terrestrial Ecology
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Sour Paspalum
Sour Paspalum - Tropical Weed or Forage? ALAN A. BEETLE Bissinda (Gabon), bitter grass (Philippines), camalote de antena (Mexico), canamazo (Cuba), cafiamazo hembro (Cuba), Highlight: Where carpetgraSs (Axonopus compressus) will cafiamazo amargo (Cuba), capim amargoso (Brazil), capim grow, sour paspalum (Paspalum conjugatum) has no place and marreca (Brazil), capim papuao (Brazil), carabao grass (Phil- is probably a sign of poor management. However, in areas of ippines), cintillo (Peru), co dang (Indochina), calapi (Philip- poor or sour soils, in shade and in times of drought, sour pas- pines), djuba-gov6 (Gabon), &inga (Gabon), gamalote (Costa palum comes into its own throughout the tropics as a valuable Rica), ge’singa (Gabon), gisinga (Gabon), grama de antena component of the total forage resource. Paspalum is a rather large genus “numbering nearly 400” species (Chase, 1929). Sour paspalum (Paspalum conjugatum) stands by itself in this genus as suggested by Chase (1929) who created for it, alone, the Section Conjugata (Fig. 1). Its most unusual character is the vigorously stoloniferous habit allowing, at times, for a rapidly formed perennial ground cover. Sour paspalum has been assumed to be native where it occurs in the Americas, from Florida to Texas and southward to Peru, Bolivia, and northern Argentina, from sea level to 4,000 ft elevation. The grass was first described from a specimen collected in Surinam (Dutch Guiana). Sour paspalum has been assumed, however, to be intro- duced wherever it occurs in the Old World tropics (Fig. 2) and Pacific Islands. The early trade routes were between Australia, Singapore, and Africa. Probably both carpetgrass (Axonopus compressus) and sour paspalum, being of similar distribution and ecology, were spread at the same time to the same places. -
Dodannualreport20042005.Pdf
chapter 7 All enquiries with respect to this report can be forwarded to Brigadier General A. Fakir at telephone number +27-12 355 5800 or Fax +27-12 355 5021 Col R.C. Brand at telephone number +27-12 355 5967 or Fax +27-12 355 5613 email: [email protected] All enquiries with respect to the Annual Financial Statements can be forwarded to Mr H.J. Fourie at telephone number +27-12 392 2735 or Fax +27-12 392 2748 ISBN 0-621-36083-X RP 159/2005 Printed by 1 MILITARY PRINTING REGIMENT, PRETORIA DEPARTMENT OF DEFENCE ANNUAL REPORT FY 2004 - 2005 chapter 7 D E P A R T M E N T O F D E F E N C E A N N U A L R E P O R T 2 0 0 4 / 2 0 0 5 Mr M.G.P. Lekota Minister of Defence Report of the Department of Defence: 1 April 2004 to 31 March 2005. I have the honour to submit the Annual Report of the Department of Defence. J.B. MASILELA SECRETARY FOR DEFENCE: DIRECTOR GENERAL DEPARTMENT OF DEFENCE ANNUAL REPORT FY 2004 - 2005 i contents T A B L E O F C O N T E N T S PAGE List of Tables vi List of Figures viii Foreword by the Minister of Defence ix Foreword by the Deputy Minister of Defence xi Strategic overview by the Secretary for Defence xiii The Year in Review by the Chief of the SA National Defence Force xv PART1: STRATEGIC DIRECTION Chapter 1 Strategic Direction Introduction 1 Aim 1 Scope of the Annual Report 1 Strategic Profile 2 Alignment with Cabinet and Cluster Priorities 2 Minister of Defence's Priorities for FY2004/05 2 Strategic Focus 2 Functions of the Secretary for Defence 3 Functions of the Chief of the SANDF 3 Parys Resolutions 3 Chapter -
VET-35: Staggers (Tremorgenic Syndrome)
University of Kentucky College of Agriculture, VET-35 Food and Environment Cooperative Extension Service Forage-Related Cattle Disorders Staggers (Tremorgenic Syndrome) Michelle Arnold, Veterinary Diagnostic Laboratory Table 1. Three main grass types associated with tremorgenic syndrome. “Staggers” is an all-inclusive term for a group of nervous system disorders Indole-diterpenoid Species caused by indole-diterpenoid mycotoxins Disease/Grass Affected Fungus Mycotoxins: “Tremorgens” Affected produced by various types of fungi on Perennial Ryegrass Staggers Neotyphodium lolii Lolitrem B Cattle, Sheep forages. These mycotoxins are collec- Grass: Lolium perenne Paxilline Horses, Llamas tively known as “tremorgens” (Table 1), Paspalum Staggers Claviceps paspali Paspalitrems A-C Cattle, Horses and they may be found in several types Grass: P. dilatatum (Dallisgrass) paspalinine Buffalo of grasses at varying stages of maturity. Grass: P. notatum (Bahiagrass) The three main grass types associated Bermudagrass Tremors Claviceps cynodontis Paspalitrems A & B Cattle, Horses with tremorgenic syndrome are Pas- Grass: Cynodon dactylon Paspaline palum spp. (dallisgrass and bahiagrass), paspalinine Cynodon dactylon (bermudagrass) and Lolium perenne (perennial ryegrass). Clinical signs are characterized by Regardless of fungal type, clinical • As the condition worsens, the animal tremors and incoordination that tend to signs of staggers are similar. may exhibit staggering, head shaking, worsen with excitement or movement. • When at rest, animals appear to move salivation, collapse and seizures or Cases of perennial ryegrass staggers and graze normally. other neurologic signs (opisthotonus, are most likely to occur when perennial • The earliest signs are head tremors nystagmus). Deaths rarely occur except ryegrass infected with the endophyte and muscle twitching (fasciculations) from accidental trauma or from conse- Neothyphodium lolii is grazed inten- of the neck and shoulders which later quences of being recumbent (downer). -
Morphology and Anatomy of the Diaspores and Seedling of Paspalum (Poaceae, Poales)
Anais da Academia Brasileira de Ciências (2013) 85(4): 1389-1396 (Annals of the Brazilian Academy of Sciences) Printed version ISSN 0001-3765 / Online version ISSN 1678-2690 http://dx.doi.org/10.1590/0001-3765201301112 www.scielo.br/aabc Morphology and anatomy of the diaspores and seedling of Paspalum (Poaceae, Poales) MAYRA T. EICHEMBERG1,2 and VERA L. SCATENA1 1Departamento de Botânica, Instituto de Biociências, Universidade Estadual Paulista, Caixa Postal 199, 13506-900 Rio Claro, SP, Brasil 2Departamento de Zootecnia, Centro de Ensino Superior do Oeste, Universidade do Estado de Santa Catarina, 89815-630 Chapecó, SC, Brasil Manuscript received on April 18, 2012; accepted for publication on January 23, 2013 ABSTRACT The knowledge regarding of the diaspore and post-seminal development of Paspalum L. is important for grassland biodiversity conservation, based on their representativeness and genetic improvement of forage. The morphology of the diaspore and the post-seminal development of Paspalum dilatatum Poir. (rhizomatous), P. mandiocanum Trin. var. subaequiglume Barreto (stoloniferous), P. pumilum Nees. (decumbent caespitose) and P. urvillei Steud. (erect caespitose) was described to distinguish species with different growth forms and to survey the characters useful for taxonomy. P. dilatatum differs by presenting oval diaspores larger than the others, with five prominent nerves and trichomes; P. urvillei presents diaspores with one central nerve that is more developed than the two lateral nerves and trichomes; P. mandiocanum var. subaequiglume presents diaspores with trichomes only in the margin; and P. pumilum differs by presenting glabrous diaspores. The caryopsis involves the seed that presents the differentiated embryo and disposed laterally, an elliptical hilum in all of the studied species and a rostellum in P. -
Annexure I Fauna & Flora Assessment.Pdf
Fauna and Flora Baseline Study for the De Wittekrans Project Mpumalanga, South Africa Prepared for GCS (Pty) Ltd. By Resource Management Services (REMS) P.O. Box 2228, Highlands North, 2037, South Africa [email protected] www.remans.co.za December 2008 I REMS December 2008 Fauna and Flora Assessment De Wittekrans Executive Summary Mashala Resources (Pty) Ltd is planning to develop a coal mine south of the town of Hendrina in the Mpumalanga province on a series of farms collectively known as the De Wittekrans project. In compliance with current legislation, they have embarked on the process to acquire environmental authorisation from the relevant authorities for their proposed mining activities. GCS (Pty) Ltd. commissioned Resource Management Services (REMS) to conduct a Faunal and Floral Assessment of the area to identify the potential direct and indirect impacts of future mining, to recommend management measures to minimise or prevent these impacts on these ecosystems and to highlight potential areas of conservation importance. This is the wet season survey which was done in the November 2008. The study area is located within the highveld grasslands of the Msukaligwa Local Municipality in the Gert Sibande District Municipality in Mpumalanga Province on the farms Tweefontein 203 IS (RE of Portion 1); De Wittekrans 218 IS (RE of Portion 1 and Portion 2, Portions 7, 11, 10 and 5); Groblershoek 191 IS; Groblershoop 192 IS; and Israel 207 IS. Within this region, precipitation occurs mainly in the summer months of October to March with the peak of the rainy season occurring from November to January. -
42 Description of the Affected Environment
EIA for the installation of a Solar Photovoltaic Power Plant at Duvha Power Station: DEIAr Eskom Holdings SOC Ltd DESCRIPTION OF THE AFFECTED ENVIRONMENT INTRODUCTION This Chapter provides a description of the biophysical, socio-economic and cultural/historical environment of both Alternative 1 and 9, collectively described as the study area. CLIMATE South Africa experiences some of the highest levels of solar radiation in the world. The average daily solar radiation in South Africa varies between 4.5 and 6.5 kWh/m2 (DoE, Web 2). Figure 13 shows the annual solar radiation for South Africa, which reveals considerable solar resource potential for solar PV power generation. Figure 13: Annual direct and diffuse solar radiation (DoE, Web 2) The study area displays warm summers and cold winters typical of the Highveld climate. The average maximum summer and winter daytime temperatures are 25 0C and 20 0C, respectively. Rainfall occurs mainly as thunderstorms and drought conditions occur in approximately 12 % of all years. The Environmental Potential Atlas for Mpumalanga places rainfall at site as ranging between 621 mm and 750 mm per year. The prevailing wind direction is north-west during the summer and east during winter. Winds are usually light to moderate. 42 EIA for the installation of a Solar Photovoltaic Power Plant at Duvha Power Station: DEIAr Eskom Holdings SOC Ltd GEOLOGY AND SOILS The study area is underlain by geology consisting of sandstone of the Vryheid Formationthe Ecca Group of the Karoo Supergroup contains bands of coal within the sedimentary layers (Figure 14). The soils are classified according to MacVicar et al (1977). -
Redalyc.Morphology and Anatomy of the Diaspores and Seedling of Paspalum (Poaceae, Poales)
Anais da Academia Brasileira de Ciências ISSN: 0001-3765 [email protected] Academia Brasileira de Ciências Brasil EICHEMBERG, MAYRA T.; SCATENA, VERA L. Morphology and anatomy of the diaspores and seedling of Paspalum (Poaceae, Poales) Anais da Academia Brasileira de Ciências, vol. 85, núm. 4, 2013, pp. 1389-1396 Academia Brasileira de Ciências Rio de Janeiro, Brasil Available in: http://www.redalyc.org/articulo.oa?id=32729375017 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Anais da Academia Brasileira de Ciências (2013) 85(4): 1389-1396 (Annals of the Brazilian Academy of Sciences) Printed version ISSN 0001-3765 / Online version ISSN 1678-2690 http://dx.doi.org/10.1590/0001-3765201301112 www.scielo.br/aabc Morphology and anatomy of the diaspores and seedling of Paspalum (Poaceae, Poales) MAYRA T. EICHEMBERG1,2 and VERA L. SCATENA1 1Departamento de Botânica, Instituto de Biociências, Universidade Estadual Paulista, Caixa Postal 199, 13506-900 Rio Claro, SP, Brasil 2Departamento de Zootecnia, Centro de Ensino Superior do Oeste, Universidade do Estado de Santa Catarina, 89815-630 Chapecó, SC, Brasil Manuscript received on April 18, 2012; accepted for publication on January 23, 2013 ABSTRACT The knowledge regarding of the diaspore and post-seminal development of Paspalum L. is important for grassland biodiversity conservation, based on their representativeness and genetic improvement of forage. The morphology of the diaspore and the post-seminal development of Paspalum dilatatum Poir. -
Non-Native Invasive Plants of the City of Alexandria, Virginia
March 1, 2019 Non-Native Invasive Plants of the City of Alexandria, Virginia Non-native invasive plants have increasingly become a major threat to natural areas, parks, forests, and wetlands by displacing native species and wildlife and significantly degrading habitats. Today, they are considered the greatest threat to natural areas and global biodiversity, second only to habitat loss resulting from development and urbanization (Vitousek et al. 1996, Pimentel et al. 2005). The Virginia Department of Conservation and Recreation has identified 90 non-native invasive plants that threaten natural areas and lands in Virginia (Heffernan et al. 2014) and Swearingen et al. (2010) include 80 plants from a list of nearly 280 non-native invasive plant species documented within the mid- Atlantic region. Largely overlapping with these and other regional lists are 116 species that were documented in the City of Alexandria, Virginia during vegetation surveys and natural resource assessments by the City of Alexandria Dept. of Recreation, Parks, and Cultural Activities (RPCA), Natural Lands Management Section. This list is not regulatory but serves as an educational reference informing those with concerns about non-native invasive plants in the City of Alexandria and vicinity, including taking action to prevent the further spread of these species by not planting them. Exotic species are those that are not native to a particular place or habitat as a result of human intervention. A non-native invasive plant is here defined as one that exhibits some degree of invasiveness, whether dominant and widespread in a particular habitat or landscape or much less common but long-lived and extremely persistent in places where it occurs. -
The Naturalised Flora of South Australia 3. Its Origin, Introduction, Distribution, Growth Forms and Significance P.M
J. Adelaide Bot Gard. 10(1): 99-111 (1987) THE NATURALISED FLORA OF SOUTH AUSTRALIA 3. ITS ORIGIN, INTRODUCTION, DISTRIBUTION, GROWTH FORMS AND SIGNIFICANCE P.M. Kloot South Australian Department of Agriculture, GPO Box 1671, Adelaide, South Australia 5001 Abstract Some features of the South Australian naturalised flora were examined. The predominant source of naturalised alien species has changed from Europe or Eurasia in 1855 to the Mediterranean and environmentally similar areas at present. It is suggested that this is due to the history of northern European settlement of South Australia and the attendant importation of plants from that region. The majority of presently naturalised plants were recorded in Great Britain at the time of South Australian settlement and it is suggested that regardless of their ultimate origin, most plants would have arrived via Great Britain or, more generally, northern Europe. The majority of naturalised plants have been documented or are suspected to have been introduced intentionally. Most of them were ornamental, fodder or culinary plants. Of the unintentionally introduced species, most were fleece, seed or ballast contaminants. A number of characteristic distribution patterns of naturalised plants in South Australia are recognized. These result from climatic and edaphic features and from patterns of land use. Annuals are the predominant growth form of the well-established species. The majority of the unintentionally introduced species are annuals. Introduction The development of the South Australian alien flora since colonization (Kloot, 1987) was ascertained from the documentation discovered during an intensive search (Kloot, 1987) to locate more material than was thought available hitherto (Michael, 1972). -
This Thesis Has Been Submitted in Fulfilment of the Requirements for a Postgraduate Degree (E.G
This thesis has been submitted in fulfilment of the requirements for a postgraduate degree (e.g. PhD, MPhil, DClinPsychol) at the University of Edinburgh. Please note the following terms and conditions of use: • This work is protected by copyright and other intellectual property rights, which are retained by the thesis author, unless otherwise stated. • A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. • This thesis cannot be reproduced or quoted extensively from without first obtaining permission in writing from the author. • The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the author. • When referring to this work, full bibliographic details including the author, title, awarding institution and date of the thesis must be given. ‘These whites never come to our game. What do they know about our soccer?’ Soccer Fandom, Race, and the Rainbow Nation in South Africa Marc Fletcher PhD African Studies The University of Edinburgh 2012 ii The thesis has been composed by myself from the results of my own work, except where otherwise acknowledged. It has not been submitted in any previous application for a degree. Signed: (MARC WILLIAM FLETCHER) Date: iii iv ABSTRACT South African political elites framed the country’s successful bid to host the 2010 FIFA World Cup in terms of nation-building, evoking imagery of South African unity. Yet, a pre-season tournament in 2008 featuring the two glamour soccer clubs of South Africa, Kaizer Chiefs and Orlando Pirates, and the global brand of Manchester United, revealed a racially fractured soccer fandom that contradicted these notions of national unity through soccer. -
Investigation of Mitochondrial-Derived Plastome Sequences in the Paspalum Lineage (Panicoideae; Poaceae) Sean V
Burke et al. BMC Plant Biology (2018) 18:152 https://doi.org/10.1186/s12870-018-1379-1 RESEARCH ARTICLE Open Access Investigation of mitochondrial-derived plastome sequences in the Paspalum lineage (Panicoideae; Poaceae) Sean V. Burke1* , Mark C. Ungerer2 and Melvin R. Duvall1 Abstract Background: The grass family (Poaceae), ca. 12,075 species, is a focal point of many recent studies that aim to use complete plastomes to reveal and strengthen relationships within the family. The use of Next Generation Sequencing technology has revealed intricate details in many Poaceae plastomes; specifically the trnI - trnL intergenic spacer region. This study investigates this region and the putative mitochondrial inserts within it in complete plastomes of Paspalum and other Poaceae. Results: Nine newly sequenced plastomes, seven of which contain an insert within the trnI - trnL intergenic spacer, were combined into plastome phylogenomic and divergence date analyses with 52 other species. A robust Paspalum topology was recovered, originating at 10.6 Ma, with the insert arising at 8.7 Ma. The alignment of the insert across Paspalum reveals 21 subregions with pairwise homology in 19. In an analysis of emergent self- organizing maps of tetranucleotide frequencies, the Paspalum insert grouped with mitochondrial DNA. Conclusions: A hypothetical ancestral insert, 17,685 bp in size, was found in the trnI - trnL intergenic spacer for the Paspalum lineage. A different insert, 2808 bp, was found in the same region for Paraneurachne muelleri. Seven different intrastrand deletion events were found within the Paspalum lineage, suggesting selective pressures to remove large portions of noncoding DNA. Finally, a tetranucleotide frequency analysis was used to determine that the origin of the insert in the Paspalum lineage is mitochondrial DNA. -
Comparison of Air Pollution Hotspots in the Highveld Using Airborne Data
Comparison of air pollution hotspots in the Highveld using airborne data Xolile Gerald Ncipha A dissertation submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, In fulfilment of the requirements for the degree of Masters of Science. Feb, 2011 ABSTRACT The Highveld region is the economic heart of South Africa with a large number of different industries. As a result it has grown to be one of the most populated and developed regions in South Africa. It developed as an industrial region of South Africa because of its abundant mineral resources. The dense concentration of industrial, domestic and transport sources of air pollution have led to degraded air quality over the region. In this study the air pollution hotspots over the Highveld are compared by utilizing the airborne data of SO2, NOX, O3 and aerosols. The South African Weather Service (SAWS) Aerocommander 690A (ZS- JRA) research aircraft was used as an airborne platform to monitor air pollution hotspots over the Highveld. The aircraft is equipped with trace gas analysers and aerosols spectrometer probes. The flight patterns involved vertical profiles that reached approximately 3000 masl. Plume penetrations were conducted to characterize emission from specific sources and mapping to determine the extent of the spatial distribution of pollutants. The seasonal variations of air pollution in these hotspots are also compared. The airborne data is also compared to data from ground based monitoring stations. O3 concentrations were found to be fairly comparable over the Highveld air pollution hotspots in each season monitored. The inconsistency in the time and the meteorological conditions prevailing when the sites were monitored complicated the comparison of the relative loading of the other air pollutants over the hotspots.