DOCSLIB.ORG

Gastro-Intestinal Helminths in the Red-Bellied Squirrel Introduced in Argentina: Accidental Acquisitions and Lack of Specific Parasites

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Gastro-Intestinal Helminths in the Red-Bellied Squirrel Introduced in Argentina: Accidental Acquisitions and Lack of Specific Parasites Published by Associazione Teriologica Italiana Volume 25 (2): 97–102, 2014 Hystrix, the Italian Journal of Mammalogy Available online at: http://www.italian-journal-of-mammalogy.it/article/view/10276/pdf doi:10.4404/hystrix-25.2-10276 Research Article Gastro-intestinal helminths in the red-bellied squirrel introduced in Argentina: accidental acquisitions and lack of specific parasites Ana Cecilia Gozzia,∗, María Laura Guichóna,b, Verónica Victoria Beniteza, Adrián Troyellia, Graciela Teresa Navonec aEcología de Mamíferos Introducidos, Departamento de Ciencias Básicas, Universidad Nacional de Luján, Rutas 5 y 7, Luján (6700), Buenos Aires, Argentina bpresent address: Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA, UNCo-CONICET), basado en Centro de Ecología Aplicada del Neuquén (CEAN), Ruta Provincial N861 Km. 3 (CC N87), Paraje San Cabao, (8371) Junín de los Andes, Neuquén, Argentina cCentro de Estudios Parasitológicos y de Vectores (CEPAVE), Centro Científico Tecnológico (CCT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) La Plata; Universidad Nacional de La Plata (UNLP). Boulevar 120 S/N entre Avda 60 y calle 64 (B1902CHX), La Plata, Argentina Keywords: Abstract Invasive squirrel helminth survey Introduced species may lose their natural parasites when invading a new habitat, may acquire new, nematodes local parasites or may introduce parasites from their native range. We studied the gastro-intestinal parasite release helminth fauna associated with the red-bellied squirrel Callosciurus erythraeus (Pallas, 1778) in- troduced in Argentina to evaluate its role as a host of either specific or acquired parasites in two Article history: invasion foci. We analyzed entire digestive tracts of 72 red-bellied squirrels captured in the main Received: 19 August 2014 invasion focus (Luján, province of Buenos Aires) between February and May 2011, and in a second- Accepted: 7 November 2014 ary focus (Cañada de Gómez, province of Santa Fe) in December 2008. We only found two nemat- ode specimens: an adult male belonging to the genus Pterygodermatites (Paucipectines) Quentin, 1969 and another adult male belonging to the genus Stilestrongylus (Freitas, Lent and Almeida, Acknowledgements 1973). None of these genera were previously listed for the red-bellied squirrel in introduced areas, We thank the owner and personnel of the ranch Del Sel for assist- ance in the field. María Cristina Estivariz for the drawings and Dr. but a species of the genus Pterygodermatites was previously reported for this squirrel in its nat- Cecilia Ezquiaga for laboratory training. This study was supported by ive habitat. These results indicate that, to date, the red-bellied squirrel in Argentina is accidentally the Universidad Nacional de Luján and the Agencia Nacional de Promo- parasitised by nematodes acquired in its new environment and has no specific gastro-intestinal hel- ción Científica y Tecnológica - Proyectos de Investigación Científica y minths. This could be related with a “founder effect” and/or the lack of sciurid rodents that prevent Tecnológica ANPCYT-PICT 32195. the red-bellied squirrel to be colonized by pre-adapted helminth taxa. Other factors that may play a role are the small number of mammals with arboreal habits and some “encounter barriers” in the new environment that prevent the acquisition of helminths with a wide host spectrum. Introduction the 10 red-bellied squirrels introduced in Argentina in 1970 that had Successful introduced species may show a pattern of low diversity and been acquired in a pet shop in The Netherlands and taken to a large prevalence of parasites in the new environment (Torchin et al., 2003; ranch in the Pampas. This arboreal squirrel successfully established in Torchin and Mitchell, 2004). This pattern is usually linked with the rural and urban areas of the Pampas (Guichón et al., 2005; Guichón and loss of native specific parasites (Keane and Crawley, 2002; Torchin et Doncaster, 2008), and has already settled in other sites of three Argen- al., 2003; Torchin and Mitchell, 2004), and with the low acquisition of tinean provinces as a result of repeated translocations and illegal pet new parasites from co-inhabiting hosts in the invaded area (Torchin and trade (Benitez et al., 2013). Mitchell, 2004; Pisanu et al., 2009). The acquisition of parasites in the Several parasitological studies on different introduced species be- new environment will depend in part, on the ability of native parasites longing to different taxa have assessed their role as new hosts in the to develop in a wide spectrum of hosts and/or if they are parasites of new environment, finding poorer parasites communities in the new en- hosts phylogenetically related to the introduced host (Asakawa, 2005; vironment in relation to the native range of the analysed species (Marr Pisanu et al., 2009). The potential advantage of introduced species over et al., 2008; Torchin et al., 2003; Ross et al., 2010). Introduced squirrels native species due to the benefit caused by the loss of their natural en- such as Tamias sibiricus Laxmann, 1769 in France were found to intro- emies may enhance their success in the invasion process as stated by the duce helminth fauna in the invaded area, while they may also acquire Enemy Release Hypothesis (Torchin et al., 2003; Torchin and Mitchell, other helminths from co-inhabiting hosts, especially if helminth para- 2004). At the same time, introduced species can also introduce para- sites have a large spectrum of host species with similar behaviour, life- sites from their native range and in some cases transfer them to native history and habitats (Pisanu et al., 2007, 2009). Recently, a common hosts (Smith and Carpenter, 2006; Taraschewski, 2006; Bordes et al., species of nematode, Strongyloides robustus Chandler, 1942, parasite 2007). of North American Eastern grey squirrels Sciurus carolinensis Gmelin, The Asiatic red-bellied squirrel, Callosciurus erythraeus (Pallas, 1788, was found in two red squirrels Sciurus vulgaris Linnaeus, 1758 1778), was intentionally introduced into Japan, Argentina, and three captured in Italy (Continental Region), suggesting that this nematode European countries (Belgium, France, and The Netherlands) (Lurz et species may spillover from the introduced grey squirrel towards the nat- al., 2013). Most squirrel introductions are intentional and related to ive red squirrel (Romeo et al., 2013, 2014). Moreover, the grey squir- pet trade (Palmer et al., 2007; Bertolino, 2009), which was the case of rel acquired local parasites in Italy but the number of parasites acquired did not compensate the number of parasite species lost from their native range (Romeo et al., 2014). ∗Corresponding author Although there are no helminthological studies conducted on the Email address: [email protected] (Ana Cecilia Gozzi) red-bellied squirrel in Argentina, helminth fauna described for this spe- Hystrix, the Italian Journal of Mammalogy ISSN 1825-5272 18th December 2014 ©cbe2014 Associazione Teriologica Italiana doi:10.4404/hystrix-25.2-10276 Hystrix, It. J. Mamm. (2014) 25(2): 97–102 cies in other introduced areas comprises both native specific parasites ethanol and cleared in temporary mounts of glycerine alcohol for iden- introduced with the founders (Asakawa, 2005; Sato et al., 2007), and tification. Drawings of worms and of the transverse section of the pat- acquired parasites from co-inhabiting hosts (Dozières et al., 2010). The tern of longitudinal ridges (synlophe) were done under a microscope aim of this study was to describe the gastro-intestinal helminths fauna Olympus BX 51 equipped with a camera lucida. associated with the red-bellied squirrel in Argentina in order to evalu- ate its role as a host of specific or acquired parasites within the invaded Results community. We will consider specific parasite species those species that are characteristic of sciurid rodents and/or have been reported in Two nematodes belonging to two different families were found in two the native range of the red-bellied squirrel. red-bellied squirrels captured in the main invasion focus in Luján (n=40), while no helminths were found in the squirrels captured in the secondary focus in Cañada de Gómez (n=32). One adult male be- Materials and methods longing to the family Rictulariidae (Nematoda: Spirurida) was found in a male squirrel. The specimen studied had features that correspon- We analyzed the entire digestive tracts of 72 red-bellied squirrels cap- ded to the genus Pterygodermatites Wedl, 1861, given its denticulate, tured during control campaigns conducted in two invasion foci in Ar- hexagonal oral opening, large buccal cavity with teeth, the presence of gentina. Between February and May 2011, we collected 40 visceral 38 pairs of combs and cuticular spines distributed in two rows on the samples of squirrels (mature:immature ~: 9:13; mature:immature |: 0 0 ventral surface of the body and the presence of four fan-like cuticular 8:10) captured in Luján, province of Buenos Aires (34°33 S, 59°7 processes anterior to the cloacal opening (Fig. 1; Tab. 1). In addition, W), which is the main invasion focus in the country, originated in 1970. the apical oral opening allows us to locate this specimen within the In December 2008, we obtained 32 visceral samples of squirrels (ma- subgenus Paucipectines Quentin, 1969. The other intestinal parasite ture:immature ~: 13:3; mature:immature |: 14:2) in a secondary in- was an adult male belonging to the family Heligmonellidae (Nematoda: vasion focus in Cañada de Gómez, province of Santa Fe (32°490 S, 0 Strongylida: Trichostrongylina: Nippostrongylinae) found in a female 61°20 W), that originated in 1999 by the release of squirrels translo- squirrel. This specimen had a synlophe with 24 spines with greater cated from the main focus in Luján, located 285 km away. Estimated number of ridges dorsally, asymmetrical copulatory bursa with extern- density of squirrels in Luján is at least three times higher than in Cañada odorsal rays differing in size, and hypertrophied genital cone (Fig. 1), de Gómez; 15.3 squirrel/ha and 4.86 squirrel/ha, respectively (Benitez which are all features belonging to the genus Stilestrongylus (Freitas, et al., 2013).
Load more

Recommended publications
  • Bukti C 01. Molecular Genetic Diversity Compressed.Pdf
    Syst Parasitol (2018) 95:235–247 https://doi.org/10.1007/s11230-018-9778-0 Molecular genetic diversity of Gongylonema neoplasticum (Fibiger & Ditlevsen, 1914) (Spirurida: Gongylonematidae) from rodents in Southeast Asia Aogu Setsuda . Alexis Ribas . Kittipong Chaisiri . Serge Morand . Monidarin Chou . Fidelino Malbas . Muchammad Yunus . Hiroshi Sato Received: 12 December 2017 / Accepted: 20 January 2018 / Published online: 14 February 2018 Ó Springer Science+Business Media B.V., part of Springer Nature 2018 Abstract More than a dozen Gongylonema rodent Gongylonema spp. from the cosmopolitan spp. (Spirurida: Spiruroidea: Gongylonematidae) congener, the genetic characterisation of G. neoplas- have been described from a variety of rodent hosts ticum from Asian Rattus spp. in the original endemic worldwide. Gongylonema neoplasticum (Fibiger & area should be considered since the morphological Ditlevsen, 1914), which dwells in the gastric mucosa identification of Gongylonema spp. is often difficult of rats such as Rattus norvegicus (Berkenhout) and due to variations of critical phenotypical characters, Rattus rattus (Linnaeus), is currently regarded as a e.g. spicule lengths and numbers of caudal papillae. In cosmopolitan nematode in accordance with global the present study, morphologically identified G. dispersion of its definitive hosts beyond Asia. To neoplasticum from 114 rats of seven species from facilitate the reliable specific differentiation of local Southeast Asia were selected from archived survey materials from almost 4,500 rodents: Thailand (58 rats), Cambodia (52 rats), Laos (three rats) and This article is part of the Topical Collection Nematoda. A. Setsuda Á H. Sato (&) M. Chou Laboratory of Parasitology, United Graduate School Laboratoire Rodolphe Me´rieux, University of Health of Veterinary Science, Yamaguchi University, 1677-1 Sciences, 73, Preah Monivong Blvd, Sangkat Sras Chak, Yoshida, Yamaguchi 753-8515, Japan Khan Daun Penh, Phnom Penh, Cambodia e-mail: [email protected] F.
    [Show full text]
  • Capítulo 9 Chapter 9
    CAPÍTULO 9 CHAPTER 9 LISTA DOS NEMÁTODES (NEMATODA) TERRESTRES DOS AÇORES LIST OF THE TERRESTRIAL NEMATODES (NEMATODA) FROM AZORES Autores (Authors) Paulo Vieira1, Dieter Sturhan2, Pedro Barbosa1, Ludovina Padre3 & Manuel Mota1 1 NemaLab/ICAAM, Departamento de Biologia, Universidade de Évora, 7002-554 Évora, Portugal; e-mails: [email protected]; pm- [email protected]; [email protected]. 2 Formerly: Biologische Bundesanstalt, Institut für Nematologie und Wirbeltierkunde, Toppheideweg 88, 48161 Münster, Germany; e-mail: [email protected]. 3 Laboratório de Parasitologia Victor Caeiro, Departamento de Medicina Veterinária, Universidade de Évora, 7002-554 Évora, Portu- gal; e-mail: [email protected]. 157 Notas explicativas Explanatory notes Os nemátodes são um grupo de invertebrados, não Nematodes are a group of non-segmented invertebrates, segmentados que formam um filo (Nematoda) bem which constitute a well defined phylum (Nematoda) definido e claramente distinto dos outros grupos de or- distinct from other animal groups. This phylum is one of ganismos. Este filo constitui um dos grupos animais the most disseminated group of animals in the planet and mais disseminados no planeta, e em termos de número the most abundant: it is estimated that four out of every de indivíduos, os nemátodes são o grupo animal mais five animals in the biosphere are nematodes. Despite abundante na Terra: quatro em cada cinco animais da being microscopic, these multicellular animals are biosfera são nemátodes. Apesar de microscópicos, os capable of exploring a wide variety of habitats including animais multicelulares que constituem este grupo são oceans, fresh waters, soils, animals and plant, and even capazes de explorar uma enorme variedade de habi- extreme environments such as dry soils in the Antarctica tats, nos mares, nas águas doces, nos solos, bem como or thermal vents (Baldwin et al.
    [Show full text]
  • Recent Progress in Our Knowledge of Parasitic Worms and Their Relation to the Public Health
    378 RECENT PROGRESS IN OUR KNOWLEDGE OF PARASITIC WORMS AND THEIR RELATION TO THE PUBLIC HEALTH. BY WILLIAM NICOLL, M.A., D.Sc, M.D., D.P.H. (London School of Tropical Medicine.) TEN years ago I made an attempt to summarize briefly the advances which had been made in our knowledge of parasitic worms during the preceding few years. The interval has witnessed much upheaval and interruption of scientific labour, but nevertheless a very considerable amount of work on the subject has been accomplished. The nature of this does not appear to have been influenced to any exceptional extent by the war. During this period a terse but useful summary of the more outstanding recent parasitological work has been published by Faust who deals with the subject mainly from its zoological aspect; while the chief publications of medical interest have been succinctly reviewed by Leiper. In the following notes I propose to deal with the subject in somewhat greater detail particu- larly in its relation to the public health. One might have anticipated that in a country such as France the pre- paration and publication of scientific papers would have been grievously hampered by war conditions but that was certainly far from being the case, for French workers, indeed, are excelled only by British and Americans in the quantity and quality of their output of helminthological literature. Russia and Germany are, as might have been expected, a considerable dis- tance behind, while the only other countries in which any outstanding work on parasitic worms has been done are Brazil and Japan.
    [Show full text]
  • The Influence of Human Settlements on Gastrointestinal Helminths of Wild Monkey Populations in Their Natural Habitat
    The influence of human settlements on gastrointestinal helminths of wild monkey populations in their natural habitat Zur Erlangung des akademischen Grades eines DOKTORS DER NATURWISSENSCHAFTEN (Dr. rer. nat.) Fakultät für Chemie und Biowissenschaften Karlsruher Institut für Technologie (KIT) – Universitätsbereich genehmigte DISSERTATION von Dipl. Biol. Alexandra Mücke geboren in Germersheim Dekan: Prof. Dr. Martin Bastmeyer Referent: Prof. Dr. Horst F. Taraschewski 1. Korreferent: Prof. Dr. Eckhard W. Heymann 2. Korreferent: Prof. Dr. Doris Wedlich Tag der mündlichen Prüfung: 16.12.2011 To Maya Index of Contents I Index of Contents Index of Tables ..............................................................................................III Index of Figures............................................................................................. IV Abstract .......................................................................................................... VI Zusammenfassung........................................................................................VII Introduction ......................................................................................................1 1.1 Why study primate parasites?...................................................................................2 1.2 Objectives of the study and thesis outline ................................................................4 Literature Review.............................................................................................7 2.1 Parasites
    [Show full text]
  • Kagawa-MS-1977.Pdf
    Thesis Approved By Major Advisor -------I ___s. Dean / A QUALITATIVE STUDY OF THE PARASITES OF BLATTA ORIENTALIS BY MARGARET MAILE KAGAWA A THESIS Submitted to the Faculty of the Graduate School of the Creighton University in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Department of Biology Omaha, 1977 IV ACKNOWLEDGMENT S I would like to express my sincere appreciation to all those who made this thesis possible. Special thanks goes to my family and to Dr. Charles B. Curtin. Thanks goes also to Dr. Robert W. Belknap and Dr. Harry Nickla. I am grateful to the staff at the Henry Doorly Zoo for their assistance in my collection Blatta orientalis and to the graduate students for their continual encourage­ ment. This thesis is dedicated to Pat, in gratitude for his support and patience over these last three years. V TABLE OF CONTENTS Page ACKNOWLEDGMENTS iv I. INTRODUCTION 1 A. The Medical and Veterinary Importance of Cockroaches 4 B. Parasites of Blatta orientalis 21 C. Experimental Infections 28 II. PURPOSE 32 III. DESCRIPTION OF THE COLLECTION SITE 33 IV. MATERIALS AND METHODS 33 A. Collection of Blatta orientalis 33 B . Laboratory Methods and Materials 40 V. RESULTS AND DISCUSSION 42 VI. SUMMARY 55 REFERENCES CITED 57 vi LIST OF TABLES Page 6 Table 1. Cockroach Vectors of Pathogens Table 2. Bacterial Pathogens Found in Cockroach Feces 11 Table 3. Pathogenic Protozoans Recovered from Cockroach Feces 13 Table 4. Parasitic Helminth Eggs Recovered from Cockroach Feces 14' Table 5. Acanthocephalan Larvae Recorded from Cockroaches 16 Table 6.
    [Show full text]
  • LCSH Section H
    H (The sound) H.P. 115 (Jet planes) Ha ʻIvri (The Hebrew word) [P235.5] USE Handley Page 115 (Jet planes) USE ʻIvri (The Hebrew word) BT Consonants H.P.11 (Bomber) Hà lăng (Southeast Asian people) Phonetics USE Handley Page Type O (Bomber) USE Sedang (Southeast Asian people) H-2 locus H.P.12 (Bomber) Ha language (May Subd Geog) UF H-2 system USE Handley Page Type O (Bomber) UF Abaha language BT Immunogenetics H.P. Sutton House (McCook, Neb.) Abuja language H 2 regions (Astrophysics) USE Sutton House (McCook, Neb.) Giha language USE H II regions (Astrophysics) H.R. 10 plans Ikiha language H-2 system USE Keogh plans Kiha language USE H-2 locus H.R.D. motorcycle BT Bantu languages H-8 (Computer) USE Vincent H.R.D. motorcycle Tanzania—Languages USE Heathkit H-8 (Computer) H-R diagrams Ha-le-ma-no (Legendary character) H-34 Choctaw (Military transport helicopter) USE HR diagrams USE Hale-mano (Legendary character) USE Choctaw (Military transport helicopter) H regions (Astrophysics) Hạ Long Bay (Vietnam) H-43 (Military transport helicopter) (Not Subd Geog) USE H II regions (Astrophysics) UF Halong Bay (Vietnam) UF Huskie (Military transport helicopter) H.S.C. Examination (N.S.W.) Vịnh Hạ Long (Vietnam) Kaman H-43 Huskie (Military transport USE Higher School Certificate Examination (N.S.W.) BT Bays—Vietnam helicopter) Ḥ. Safadi (Israel) Ha Makhopo Valley (Lesotho) Pedro (Military transport helicopter) USE Safadi (Extinct city) BT Valleys—Lesotho BT Military helicopters H-spaces ha-Mitlah, Maʻavar (Egypt) H-53 (Military transport helicopter) [QA612.77] USE Mitla Pass (Egypt) USE Sikorsky H-53 (Military transport helicopter) UF Hopf spaces Hà Nhì (Asian people) H-60 (Military transport helicopter) Spaces, Hopf USE Hani (Asian people) USE Black Hawk (Military transport helicopter) BT Topological groups Hà-nhì language H.263 (Video coding standard) H Street (Washington, D.C.) USE Hani language UF ITU H.263 (Video coding standard) This heading is not valid for use as a geographic Ha-ni (Asian people) ITU-T Recommendation H.263 (Video coding subdivision.
    [Show full text]
  • Johannes Fibiger
    J OHANNES F I B I G E R Investigations on Spiroptera carcinoma and the experimental induction of cancer Nobel Lecture, December 12, 1927 Ladies and Gentlemen. Now that it is my honour to address the Swedish Society of Medicine, I should like to begin by expressing the debt of gratitude I owe to this Society. In 1913, some six months after I had published my first work on Spiroptera carcinoma, the Swedish Society of Medicine did me the honour of making me its member. This was the first recognition of this kind which came to me after the appearance of my work, and I would like to mention again today, here in the home of the Society, the great pleasure which I felt then and which I still recall with sincere gratitude. Before I go on to relate the principal results of my investigations on Spirop- tera carcinoma and the experimental induction of cancer, I would like to be allowed to offer the Nobel Foundation and the Staff of Professors of the Caroline Medio-Surgical Institute my most sincere and humble thanks for the great honour they have done me by finding my experiments worthy of the Nobel Prize in Physiology or Medicine. It is possible to trace back attempts at supplementing clinical and anatom- ical studies of cancer by means of experimental work on the disease’s origins, development and dissemination in the organism over a great number of years; not only the first, primitive experiments made over 150 years ago, but many more recent ones met with only negative results up to a short time ago.
    [Show full text]
  • Pdf/105/2/271/2366871/17-199.Pdf by Guest on 30 September 2021
    Journal of Parasitology 2019 105(2) 271–282 Ó American Society of Parasitologists 2019 Published 4 April 2019 Contents and archives available through www.bioone.org or www.jstor.org Journal of Parasitology journal homepage: www.journalofparasitology.org DOI: 10.1645/17-199 METACOMMUNITY STRUCTURE OF HELMINTHS OF NECROMYS LASIURUS (RODENTIA: SIGMODONTINAE) IN DIFFERENT LAND USE AREAS IN THE BRAZILIAN CERRADO Downloaded from http://meridian.allenpress.com/journal-of-parasitology/article-pdf/105/2/271/2366871/17-199.pdf by guest on 30 September 2021 Nata´lia Alves Costa1,2, Thiago dos Santos Cardoso1,3,Socrates´ Fraga da Costa Neto2,4, Arnaldo Maldonado Ju´ nior1, and Rosana Gentile1 1 Laboratorio´ de Biologia e Parasitologia de Mam´ıferos Silvestres Reservatorios,´ Instituto Oswaldo Cruz, Funda¸ca˜o Oswaldo Cruz, Av. Brazil 4365 Manguinhos, 21045-900, Rio de Janeiro, RJ, Brazil. 2 Programa de Pos-Gradua¸´ ca˜o em Biodiversidade e Sau´de, Instituto Oswaldo Cruz, Funda¸ca˜o Oswaldo Cruz, 21040-900, Rio de Janeiro, RJ, Brazil. 3 Programa de Pos-Gradua¸´ ca˜o em Cieˆncias Veterina´rias, Departamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro, 23851-970, Serop´edica, RJ, Brazil. 4 Fiocruz Mata Atlˆantica, Funda¸ca˜o Oswaldo Cruz, 22713-560, Rio de Janeiro, RJ, Brazil. Correspondence should be sent to Rosana Gentile at: [email protected] KEY WORDS ABSTRACT Acanthocephala The ecology of host–parasite interactions can be studied in the infracommunity and component Community community scales, which may show different patterns in species distributions, interacting and Ecology affecting each other on a regional scale.
    [Show full text]
  • Un Prix Nobel Discuté : Johannes Fibiger, 1926 *
    Un prix Nobel discuté : Johannes Fibiger, 1926 * par Jean-Claude PETITHORY **, Jean THÉODORIDÈS*** et Lucien BRUMPT La vie de J. Fibiger Elle peut être retracé principalement grâce aux travaux très documentés d'un autre danois, Clemmesen J. (1978). Johannes Andréas Grib Fibiger est né en 1867 à Silkebory, au Danemark. Ses ancêtres étaient des musiciens qui avaient émigré d'Allemagne au Danemark vers 1680. Son père était médecin et mourut en 1873, à l'âge de 54 ans, alors que Johannes n'était encore âgé que de 6 ans. Sa mère le délaissa pour la littérature. Il fut profondément attaché à son oncle, dont le fils adoptif, Karl Gjellerup fut récompensé du prix Nobel en littérature. Toutes les personnes qui l'ont connu et ceux qui ont étudié son œuvre, sont una­ nimes à reconnaître qu'il était extrêmement consciencieux, et très méticuleux. Il lui arrivait d'être en colère, mais revenait très vite à la bonne humeur. Il était également d'une honnêteté scrupuleuse. Il devint médecin de l'école de médecine de l'université de Copenhague en 1890 et passa une thèse de doctorat en bactériologie en 1895 qui avait pour sujet l'étude du bacille diphtérique en particulier les aspects épidémiologiques correspondants. En 1897 il fit une enquête sur l'efficacité du sérum antidiphtérique. Changeant d'orientation peu de temps après, il s'orienta vers l'anatomie pathologique et devint titulaire de la chaire correspondante en 1900 au décès de Lange. Pendant les premières années dans cette nouvelle discipline, il travailla sur un sujet qui faisait transition avec sa précédente orientation, la tuberculose, en particulier sur l'importance de la tuberculose bovine chez l'homme, ce qui était contesté par R.
    [Show full text]
  • Desmodus Rotundus) in a Tropical Cattle-Ranching Landscape Rafael Ávila-Flores, Ana Lucía Bolaina-Badal, Adriana Gallegos-Ruiz and Wendy S
    www.mastozoologiamexicana.org La Portada Logotipo de la Asociación Mexicana de Mastozoología A. C. Nuestro logo “Ozomatli” El nombre de “Ozomatli” proviene del náhuatl se refiere al símbolo astrológico del mono en el calendario azteca, así como al dios de la danza y del fuego. Se relaciona con la alegría, la danza, el canto, las habilidades. Al signo decimoprimero en la cosmogonía mexica. “Ozomatli” es una representación pictórica de los mono arañas (Ateles geoffroyi). La especie de primate de más amplia distribución en México. “ Es habitante de los bosques, sobre todo de los que están por donde sale el sol en Anáhuac. Tiene el dorso pequeño, es barrigudo y su cola, que a veces se enrosca, es larga. Sus manos y sus pies parecen de hombre; también sus uñas. Los Ozomatin gritan y silban y hacen visajes a la gente. Arrojan piedras y palos. Su cara es casi como la de una persona, pero tienen mucho pelo.” THERYA Volumen 10, número 3 septiembre 2019 EDITORIAL Editorial Sergio Ticul Álvarez-Castañeda 211 ARTICLES Insights into the evolutionary and demographic history of the extant endemic rodents of the Galápagos Islands Contenido Susette Castañeda-Rico, Sarah A. Johnson, Scott A. Clement, Robert C. Dowler, Jesús E. Maldonado and Cody W. Edwards 213 Use of linear features by the common vampire bat (Desmodus rotundus) in a tropical cattle-ranching landscape Rafael Ávila-Flores, Ana Lucía Bolaina-Badal, Adriana Gallegos-Ruiz and Wendy S. Sánchez-Gómez 229 Differences in metal content in liver of Heteromyids from deposits with and without previous mining operations Lía Méndez-Rodríguez and Sergio Ticul Álvarez-Castañeda 235 Identity and distribution of the Nearctic otter (Lontra canadensis) at the Río Conchos Basin, Chihuahua, Mexico.
    [Show full text]
  • The Helminthological Society -Of Fe
    July 1995 Number 2 >v- of . THe Helminthological Society -of fe A semiannual journal of research devoted to Helminthology and all branches of Parasitology Supported in part by the , - (.^ >_.,-:• Brayton H. Ransom ^Memorial Trust Fund '/ \ _ CONTENTS ";'" -; , KHAN, R. .A.'AND A. J. PAUL. -Life Cycle Studies on Arcto-boreal Leeches (Hiru- 105 HASEGAWA, H. AND SYAFRUDDIN. " Nippostrongylus marhaeniae sp. n. and Other Nem- atodes Collected frqm Rattus cf. morotaiensis in "North Balmahera, Molucca Is- lands, Indonesia .-._ _;. _•; r.._.-^ '. .. .-.-.- _• ^ ; 1.11 NAHHAS, F JM. AND J. A. WETZEL. Di^ehetic Trematodes of Marihe'-Fishfes froWSuva, Fiji: The. Family Gyiiauchenidae Ozaki, 1933; '. .....^.^._.__^L ±_« -.117 DRONEN, N. O., Z: N. HQMESLEY, AND A. G. CLEVELAND. Conodiplostamwn asym- . metricuni sp. n. (Neodiplostomidae: Crassiphialinae), from, Niviveiiter cremori- - yenter (Muridae) from Yunnan, Proyince of the Peoples Republic of China GRACZYK, T. K,, M. R. CRANFIELD,_J. J. BROSSY, J. F. COCKREM, P. JOUVENTIN, AND P. J. SEDDON. < Detection of Avian Malaria Infections in Wild and Captive Pen- 135 McALLiSTER, C.XT., S.XUPTONrS. E. TRAUTH, AND C. R. BURSEY. N Parasites of Wood Frogs, Rana sylvatica (Ranrdae),: from Arkansas, with a Description of a"New_ . Species of Eimeria (Apicomplexa: Eimeriidae) .__-..>: . .„... ;__-^_:iil: 143- MCALLISTER, C. T., C. R. ^LIRSEY, S. J. UPTON, S._ E. TRAUTH, AND D. B. .- CONN. Parasites of -Desmognathus brimleyorum(Caudala: Plethodontidae) from - " the Ouachita Mountains of Arkansas and-Oklahoma _.^__S.-1._1 . 1 ; - PARISELLE, A. AND (L. EUZET. Scutogyrus gen. n. (Monogenea/ Ancyrocephalidae) for Cichlidogyrus longicornis minus Dossou, 1982, C.
    [Show full text]
  • Instituto De Biociências Programa De Pós-Graduação Em Biologia Animal Leonardo Tresoldi Gonçalves Dna Barcoding Em Nematoda
    INSTITUTO DE BIOCIÊNCIAS PROGRAMA DE PÓS-GRADUAÇÃO EM BIOLOGIA ANIMAL LEONARDO TRESOLDI GONÇALVES DNA BARCODING EM NEMATODA: UMA ANÁLISE EXPLORATÓRIA UTILIZANDO SEQUÊNCIAS DE cox1 DEPOSITADAS EM BANCOS DE DADOS PORTO ALEGRE 2019 LEONARDO TRESOLDI GONÇALVES DNA BARCODING EM NEMATODA: UMA ANÁLISE EXPLORATÓRIA UTILIZANDO SEQUÊNCIAS DE cox1 DEPOSITADAS EM BANCOS DE DADOS Dissertação apresentada ao Programa de Pós- Graduação em Biologia Animal, Instituto de Biociências da Universidade Federal do Rio Grande do Sul, como requisito parcial à obtenção do título de Mestre em Biologia Animal. Área de concentração: Biologia Comparada Orientadora: Prof.ª Dr.ª Cláudia Calegaro-Marques Coorientadora: Prof.ª Dr.ª Maríndia Deprá PORTO ALEGRE 2019 LEONARDO TRESOLDI GONÇALVES DNA BARCODING EM NEMATODA: UMA ANÁLISE EXPLORATÓRIA UTILIZANDO SEQUÊNCIAS DE cox1 DEPOSITADAS EM BANCOS DE DADOS Aprovada em ____ de _________________ de 2019. BANCA EXAMINADORA ____________________________________________________ Dr.ª Eliane Fraga da Silveira (ULBRA) ____________________________________________________ Dr. Filipe Michels Bianchi (UFRGS) ____________________________________________________ Dr.ª Juliana Cordeiro (UFPel) i AGRADECIMENTOS Agradeço a todos que, de uma forma ou de outra, estiveram comigo durante a trajetória deste mestrado. Este trabalho também é de vocês. Às minhas orientadoras, Cláudia Calegaro-Marques e Maríndia Deprá, por confiarem no meu trabalho, por fortalecerem minha autonomia, pelos conselhos e por todo o incentivo. Obrigado por aceitarem fazer parte desta jornada. À professora Suzana Amato, que ainda na minha graduação abriu as portas de seu laboratório e fez com que eu me interessasse pelos nematoides (e outros helmintos). Agradeço também pelas sugestões enquanto banca de acompanhamento deste mestrado. Ao Filipe Bianchi, por todo auxílio (principalmente na parte de bancada), pelas trocas de ideias sempre frutíferas e por aceitar fazer parte das bancas de acompanhamento e examinadora.
    [Show full text]