Spider Preying on Ticks in a Brazilian Cave
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Transmission and Evolution of Tick-Borne Viruses
Available online at www.sciencedirect.com ScienceDirect Transmission and evolution of tick-borne viruses Doug E Brackney and Philip M Armstrong Ticks transmit a diverse array of viruses such as tick-borne Bourbon viruses in the U.S. [6,7]. These trends are driven encephalitis virus, Powassan virus, and Crimean-Congo by the proliferation of ticks in many regions of the world hemorrhagic fever virus that are reemerging in many parts of and by human encroachment into tick-infested habitats. the world. Most tick-borne viruses (TBVs) are RNA viruses that In addition, most TBVs are RNA viruses that mutate replicate using error-prone polymerases and produce faster than DNA-based organisms and replicate to high genetically diverse viral populations that facilitate their rapid population sizes within individual hosts to form a hetero- evolution and adaptation to novel environments. This article geneous population of closely related viral variants reviews the mechanisms of virus transmission by tick vectors, termed a mutant swarm or quasispecies [8]. This popula- the molecular evolution of TBVs circulating in nature, and the tion structure allows RNA viruses to rapidly evolve and processes shaping viral diversity within hosts to better adapt into new ecological niches, and to develop new understand how these viruses may become public health biological properties that can lead to changes in disease threats. In addition, remaining questions and future directions patterns and virulence [9]. The purpose of this paper is to for research are discussed. review the mechanisms of virus transmission among Address vector ticks and vertebrate hosts and to examine the Department of Environmental Sciences, Center for Vector Biology & diversity and molecular evolution of TBVs circulating Zoonotic Diseases, The Connecticut Agricultural Experiment Station, in nature. -
Ixodida: Argasidae) En México
Universidad Nacional Autónoma de México Facultad de Estudios Superiores – Zaragoza Diferenciación morfológica y molecular de garrapatas del género Antricola (Ixodida: Argasidae) en México. TESIS Que para obtener el título de: BIÓLOGO Presenta: Jesús Alberto Lugo Aldana Directora de tesis: Dra. María del Carmen Guzmán Cornejo Asesor interno: Dr. David Nahum Espinosa Organista México, D. F. Abril 2013 Facultad de Estudios Superiores Zaragoza, UNAM. *** Laboratorio de Acarología “Anita Hoffman” Facultad de Ciencias, UNAM. Dedicatoria A mi esposa Diana Sánchez y mi pequeña princesa Quetzalli por ser el motivo, para ser mejor día con día. A mi mamá Sara H. Aldana G. y mi papá Jesús G. Lugo C. por enseñarme los valores que hoy me hacen ser una gran persona, además de ser el ejemplo para superarme todos los días. A mi hermana Mitzi Saraí y hermano José Luis por su apoyo incondicional, que además de ser inspiración, lograron alentarme en todo momento para concluir este gran proyecto. A la familia Aldana Sánchez, Aldana Godínez, Del Moral Aldana, Lugo Cid, Lugo Romero, Lugo Maldonado y a la Sra. Irene Cabrera R., por todos sus consejos y apoyo incondicional a lo largo de toda mi carrera. Mil gracias… Agradecimientos o A mi alma mater U.N.A.M., por darme la oportunidad de ser parte de ésta gran institución. o A la Facultad de Estudios Superiores Zaragoza, por brindarme los conocimientos esenciales en toda mi formación como biólogo. o A la Dra. Ma. Del Carmen Guzmán Cornejo, “Meli”, por todo su apoyo incondicional durante la realización de éste trabajo, ya que sin sus consejos, orientación, confianza y amistad no se hubieran alcanzado tantas satisfacciones. -
Rare Genomic Changes and Mitochondrial Sequences Provide Independent Support for Congruent Relationships Among the Sea Spiders (Arthropoda, Pycnogonida)
Molecular Phylogenetics and Evolution 57 (2010) 59–70 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Rare genomic changes and mitochondrial sequences provide independent support for congruent relationships among the sea spiders (Arthropoda, Pycnogonida) Susan E. Masta *, Andrew McCall, Stuart J. Longhorn 1 Department of Biology, Portland State University, P.O. Box 751, Portland, OR 97207, USA article info abstract Article history: Pycnogonids, or sea spiders, are an enigmatic group of arthropods. Their unique anatomical features have Received 15 September 2009 made them difficult to place within the broader group Arthropoda. Most attempts to classify members of Revised 15 June 2010 Pycnogonida have focused on utilizing these anatomical features to infer relatedness. Using data from Accepted 25 June 2010 mitochondrial genomes, we show that pycnogonids are placed as derived chelicerates, challenging the Available online 30 June 2010 hypothesis that they diverged early in arthropod history. Our increased taxon sampling of three new mitochondrial genomes also allows us to infer phylogenetic relatedness among major pycnogonid lin- Keywords: eages. Phylogenetic analyses based on all 13 mitochondrial protein-coding genes yield well-resolved rela- Chelicerata tionships among the sea spider lineages. Gene order and tRNA secondary structure characters provide Arachnida Mitochondrial genomics independent lines of evidence for these inferred phylogenetic relationships among pycnogonids, and tRNA secondary structure show a minimal amount of homoplasy. Additionally, rare changes in three tRNA genes unite pycnogonids Lys Ser(AGN) Gene rearrangements as a clade; these include changes in anticodon identity in tRNA and tRNA and the shared loss of D-arm sequence in the tRNAAla gene. -
Fluralaner Activity Against Life Stages of Ticks Using Rhipicephalus
Williams et al. Parasites & Vectors (2015) 8:90 DOI 10.1186/s13071-015-0704-x RESEARCH Open Access Fluralaner activity against life stages of ticks using Rhipicephalus sanguineus and Ornithodoros moubata IN in vitro contact and feeding assays Heike Williams*, Hartmut Zoller, Rainer KA Roepke, Eva Zschiesche and Anja R Heckeroth Abstract Background: Fluralaner is a novel isoxazoline eliciting both acaricidal and insecticidal activity through potent blockage of GABA- and glutamate-gated chloride channels. The aim of the study was to investigate the susceptibility of juvenile stages of common tick species exposed to fluralaner through either contact (Rhipicephalus sanguineus) or contact and feeding routes (Ornithodoros moubata). Methods: Fluralaner acaricidal activity through both contact and feeding exposure was measured in vitro using two separate testing protocols. Acaricidal contact activity against Rhipicephalus sanguineus life stages was assessed using three minute immersion in fluralaner concentrations between 50 and 0.05 μg/mL (larvae) or between 1000 and 0.2 μg/mL (nymphs and adults). Contact and feeding activity against Ornithodoros moubata nymphs was assessed using fluralaner concentrations between 1000 to 10−4 μg/mL (contact test) and 0.1 to 10−10 μg/mL (feeding test). Activity was assessed 48 hours after exposure and all tests included vehicle and untreated negative control groups. Results: Fluralaner lethal concentrations (LC50,LC90/95) were defined as concentrations with either 50%, 90% or 95% killing effect in the tested sample population. After contact exposure of R. sanguineus life stages lethal concentrations were (μg/mL): larvae - LC50 0.7, LC90 2.4; nymphs - LC50 1.4, LC90 2.6; and adults - LC50 278, LC90 1973. -
Observations on Antricola Ticks: Small Nymphs Feed on Mammalian Hosts and Have a Salivary Gland Structure Similar to Ixodid Ticks
Universidade de São Paulo Biblioteca Digital da Produção Intelectual - BDPI Departamento de Medicina Veterinária Prevenção e Saúde Animal Artigos e Materiais de Revistas Científicas - FMVZ/VPS - FMVZ/VPS 2008 Observations on Antricola ticks: small Nymphs feed on mammalian hosts and have a salivary gland structure similar to Ixodid ticks Journal of Parasitology, Lancaster, v. 94, n. 4, p. 953-955, 2008 http://producao.usp.br/handle/BDPI/2098 Downloaded from: Biblioteca Digital da Produção Intelectual - BDPI, Universidade de São Paulo J. Parasitol., 94(4), 2008, pp. 953–955 ᭧ American Society of Parasitologists 2008 Observations on Antricola Ticks: Small Nymphs Feed on Mammalian Hosts and Have a Salivary Gland Structure Similar to Ixodid Ticks A. Estrada-Pen˜ a, J. M. Venzal*, Katherine M. Kocan†, C. Tramuta‡, L. Tomassone‡, J. de la Fuente†§, and M. Labruna Department of Parasitology, Veterinary Faculty, Miguel Servet 177, 50013 Zaragoza, Spain; *Department of Parasitology, Veterinary Faculty, Av. Alberto Lasplaces 1620, CP 11600 Montevideo, Uruguay; †Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, Oklahoma 74078 U.S.A.; ‡Dipartimento di Produzioni Animali, Epidemiologia, Ecologia, Facolta` di Medicina Veterinaria, Universita` degli Studi di Torino, Via Leonardo da Vinci, 44, 10095 Grugliasco (TO), Italy; §Instituto de Investigacio´n en Recursos Cinege´ticos IREC (CSIC-UCLM-JCCM), Ronda de Toledo s/n, 13071 Ciudad Real, Spain; Department of Preventive Veterinary Medicine and Animal Health, Veterinary Faculty, University of Sao Paulo, Sao Paulo, SP, Brazil. e-mail: [email protected] ABSTRACT: Ticks use bloodmeals as a source of nutrients and energy has been identified as the nutrient that supports tick survival until the to molt and survive until the next meal and to oviposit, in the case of parasite obtains a blood meal (Chinzei and Yano, 1985). -
Central-European Ticks (Ixodoidea) - Key for Determination 61-92 ©Landesmuseum Joanneum Graz, Austria, Download Unter
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Mitteilungen der Abteilung für Zoologie am Landesmuseum Joanneum Graz Jahr/Year: 1972 Band/Volume: 01_1972 Autor(en)/Author(s): Nosek Josef, Sixl Wolf Artikel/Article: Central-European Ticks (Ixodoidea) - Key for determination 61-92 ©Landesmuseum Joanneum Graz, Austria, download unter www.biologiezentrum.at Mitt. Abt. Zool. Landesmus. Joanneum Jg. 1, H. 2 S. 61—92 Graz 1972 Central-European Ticks (Ixodoidea) — Key for determination — By J. NOSEK & W. SIXL in collaboration with P. KVICALA & H. WALTINGER With 18 plates Received September 3th 1972 61 (217) ©Landesmuseum Joanneum Graz, Austria, download unter www.biologiezentrum.at Dr. Josef NOSEK and Pavol KVICALA: Institute of Virology, Slovak Academy of Sciences, WHO-Reference- Center, Bratislava — CSSR. (Director: Univ.-Prof. Dr. D. BLASCOVIC.) Dr. Wolf SIXL: Institute of Hygiene, University of Graz, Austria. (Director: Univ.-Prof. Dr. J. R. MOSE.) Ing. Hanns WALTINGER: Centrum of Electron-Microscopy, Graz, Austria. (Director: Wirkl. Hofrat Dipl.-Ing. Dr. F. GRASENIK.) This study was supported by the „Jubiläumsfonds der österreichischen Nationalbank" (project-no: 404 and 632). For the authors: Dr. Wolf SIXL, Universität Graz, Hygiene-Institut, Univer- sitätsplatz 4, A-8010 Graz. 62 (218) ©Landesmuseum Joanneum Graz, Austria, download unter www.biologiezentrum.at Dedicated to ERICH REISINGER em. ord. Professor of Zoology of the University of Graz and corr. member of the Austrian Academy of Sciences 3* 63 (219) ©Landesmuseum Joanneum Graz, Austria, download unter www.biologiezentrum.at Preface The world wide distributed ticks, parasites of man and domestic as well as wild animals, also vectors of many diseases, are of great economic and medical importance. -
Tick Talk: Advancing the Understanding and Prevention of Tick-Borne Diseases
Tick Talk: Advancing the Understanding and Prevention of Tick-borne Diseases Seemay Chou UCSF Dept of Biochemistry & Biophysics Osher Mini Med School, 11/14/19 Malaria Sleeping sickness Lyme disease Topics: 1. Ticks and their vector capacity 2. Challenges associated with diagnosing Lyme 3. Strategies for blocking tick-borne diseases 4. What else can we learn from ticks? Ticks are vectors for human diseases Lyme Disease Ixodes scapularis Anaplasmosis Ixodes pacificus Babesiosis Powassan Disease Dermacentor andersoni Rocky Mountain Spotted Fever Dermacentor variablis Colorado Tick Fever Ehrlichiosis Amblyomma maculatum Rickettsiosis Amblyomma americanum Mammalian Meat Allergy Different ticks have different lifestyles Hard scutum Soft capitulum Ixodes scapularis Ornithodoros savignyi Different ticks have different lifestyles Hard • 3 stages: larvae, nymphs, adults • Single bloodmeal between each • Bloodmeal: days to over a week Ixodes scapularis Lyme disease cases in the U.S. are on the rise Ixodes scapularis Borrelia burgdorferi Lyme disease Cases have tripled in past decade Most commonly reported vector-borne disease in U.S. Centers for Disease Control Tick–pathogen relationships are remarkably specific Source: CDC.gov Lyme disease is restricted to where tick vectors are Source: CDC.gov West coast vector: Ixodes pacificus Western blacklegged tick West coast vector: Ixodes pacificus Sceloporus occidentalis Western fence lizard County level distribution of submitted Ixodes Nieto et al, 2018 Distribution of other tick species received Nieto -
Article New Records of Rare Ornithodoros (Acari: Argasidae
Persian Journal of Acarology, Vol. 1, No. 2, pp. 127−135 Article New records of rare Ornithodoros (Acari: Argasidae) species in caves of the Brazilian Amazon Matheus Henrique-Simões1, Leopoldo Ferreira de Oliveira Bernardi2*, Maria Ogrzewalska3, Marcelo Bahia Labruna3 & Rodrigo Lopes Ferreira4 1 Graduate in Applied Ecology, Ecology Section/Biology Department, Federal University of Lavras, Minas Gerais State, Brazil, P.O.Box 3037, Zip Code, 37200-000; e-mail: [email protected] 2 Graduate in Applied Ecology, CAPES scholarship, Ecology Section/Biology Department, Federal University of Lavras, Minas Gerais State, Brazil, P.O.Box 3037, Zip Code, 37200-000;e-mail: [email protected] 3 Laboratory of Underground Ecology, Zoology Section/ Biology Department, Federal University of Lavras, Minas Gerais State, Brazil, P.O.Box 3037, Zip Code, 37200-000; e-mail:[email protected] 4 Faculty of Veterinary Medicine, University of São Paulo, São Paulo State, Brazil, Zip Code 05508-270; e-mail: [email protected] * Corresponding author Abstract The genus Ornithodoros is worldwide distributed and features 113 known species. However, some species are rare and collections are scarce. The present paper expands the known distribution of two species of soft ticks, O. rondoniensis and O. marinkellei, by about 1400 km to the east, in caves in two municipal districts in the state of Pará, northern Brazil. These species were previously known only from the western Brazilian Amazon. Furthermore, some morphological details and molecular analysis are shown. Key words: Acari, Ixodida, Argasidae, cave, new records Introduction Cave environments present a series of rather peculiar characteristics, such as permanent absence of light far from the entrances, food scarcity, high humidity and nearly constant temperature (Culver 1982). -
Curriculum Vitae (PDF)
CURRICULUM VITAE Steven J. Taylor April 2020 Colorado Springs, Colorado 80903 [email protected] Cell: 217-714-2871 EDUCATION: Ph.D. in Zoology May 1996. Department of Zoology, Southern Illinois University, Carbondale, Illinois; Dr. J. E. McPherson, Chair. M.S. in Biology August 1987. Department of Biology, Texas A&M University, College Station, Texas; Dr. Merrill H. Sweet, Chair. B.A. with Distinction in Biology 1983. Hendrix College, Conway, Arkansas. PROFESSIONAL AFFILIATIONS: • Associate Research Professor, Colorado College (Fall 2017 – April 2020) • Research Associate, Zoology Department, Denver Museum of Nature & Science (January 1, 2018 – December 31, 2020) • Research Affiliate, Illinois Natural History Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign (16 February 2018 – present) • Department of Entomology, University of Illinois at Urbana-Champaign (2005 – present) • Department of Animal Biology, University of Illinois at Urbana-Champaign (March 2016 – July 2017) • Program in Ecology, Evolution, and Conservation Biology (PEEC), School of Integrative Biology, University of Illinois at Urbana-Champaign (December 2011 – July 2017) • Department of Zoology, Southern Illinois University at Carbondale (2005 – July 2017) • Department of Natural Resources and Environmental Sciences, University of Illinois at Urbana- Champaign (2004 – 2007) PEER REVIEWED PUBLICATIONS: Swanson, D.R., S.W. Heads, S.J. Taylor, and Y. Wang. A new remarkably preserved fossil assassin bug (Insecta: Heteroptera: Reduviidae) from the Eocene Green River Formation of Colorado. Palaeontology or Papers in Palaeontology (Submitted 13 February 2020) Cable, A.B., J.M. O’Keefe, J.L. Deppe, T.C. Hohoff, S.J. Taylor, M.A. Davis. Habitat suitability and connectivity modeling reveal priority areas for Indiana bat (Myotis sodalis) conservation in a complex habitat mosaic. -
Ixodida: Argasidae), Texas, USA
BRIEF RESEARCH REPORT published: 15 February 2021 doi: 10.3389/fvets.2021.639400 Host Bloodmeal Identification in Cave-Dwelling Ornithodoros turicata Dugès (Ixodida: Argasidae), Texas, USA Rachel E. Busselman 1, Mark F. Olson 2, Viridiana Martinez 3, Edward Davila 1, Cierra Briggs 2,4, Devon S. Eldridge 2,5, Bailee Higgins 2, Brittany Bass 2, Thomas L. Cropper 6, Theresa M. Casey 6, Theresa Edwards 7, Pete D. Teel 2, Sarah A. Hamer 1 and Gabriel L. Hamer 2* 1 Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, United States, 2 Department of Entomology, Texas A&M AgriLife Research, College Station, TX, United States, 3 Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX, United States, 4 Department of Entomology, Cornell University, Ithaca, NY, United States, 5 Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Knoxville, TN, United States, 6 59th Medical Wing, Joint Base San Antonio, Lackland, San Antonio, TX, United States, 7 Texas Parks and Wildlife Department, Government Canyon State Natural Area, San Antonio, TX, United States Edited by: Tick-host bloodmeal associations are important factors when characterizing risks of Sebastián Muñoz-Leal, associated pathogen transmission and applying appropriate management strategies. University of Concepcion, Chile Despite their biological importance, comparatively little is known about soft tick Reviewed by: (Argasidae) host associations in the United States compared to hard ticks (Ixodidae). In Markéta Nováková, Masaryk University, Czechia this study, we evaluated a PCR and direct Sanger sequencing method for identifying the Deon Bakkes, bloodmeal hosts of soft ticks. We collected 381 cave-associated Ornithodoros turicata Agricultural Research Council of South Africa, South Africa near San Antonio, Texas, USA, and also utilized eight colony-reared specimens fed *Correspondence: artificially on known host blood sources over 1.5 years ago. -
Crimean-Congo Hemorrhagic Fever: History, Epidemiology, Pathogenesis, Clinical Syndrome and Genetic Diversity Dennis A
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln USGS Staff -- ubP lished Research US Geological Survey 2013 Crimean-Congo hemorrhagic fever: History, epidemiology, pathogenesis, clinical syndrome and genetic diversity Dennis A. Bente University of Texas Medical Branch, [email protected] Naomi L. Forrester University of Texas Medical Branch Douglas M. Watts University of Texas at El Paso Alexander J. McAuley University of Texas Medical Branch Chris A. Whitehouse US Geological Survey See next page for additional authors Follow this and additional works at: http://digitalcommons.unl.edu/usgsstaffpub Bente, Dennis A.; Forrester, Naomi L.; Watts, ouD glas M.; McAuley, Alexander J.; Whitehouse, Chris A.; and Bray, Mike, "Crimean- Congo hemorrhagic fever: History, epidemiology, pathogenesis, clinical syndrome and genetic diversity" (2013). USGS Staff -- Published Research. 761. http://digitalcommons.unl.edu/usgsstaffpub/761 This Article is brought to you for free and open access by the US Geological Survey at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in USGS Staff -- ubP lished Research by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Authors Dennis A. Bente, Naomi L. Forrester, Douglas M. Watts, Alexander J. McAuley, Chris A. Whitehouse, and Mike Bray This article is available at DigitalCommons@University of Nebraska - Lincoln: http://digitalcommons.unl.edu/usgsstaffpub/761 Antiviral Research 100 (2013) 159–189 Contents lists available at ScienceDirect Antiviral Research journal homepage: www.elsevier.com/locate/antiviral Review Crimean-Congo hemorrhagic fever: History, epidemiology, pathogenesis, clinical syndrome and genetic diversity ⇑ Dennis A. Bente a, , Naomi L. Forrester b, Douglas M. Watts c, Alexander J. McAuley a, Chris A. -
Article Argas Vespertilionis (Ixodida: Argasidae): a Parasite Of
Persian Journal of Acarology, Vol. 2, No. 2, pp. 321–330. Article Argas vespertilionis (Ixodida: Argasidae): A parasite of Pipistrel bat in Western Iran Asadollah Hosseini-Chegeni1* & Majid Tavakoli2 1 Department of Plant Protection, Faculty of Agriculture, University of Guilan, Guilan, Iran; E-mail: [email protected] 2 Lorestan Agricultural & Natural Resources Research Center, Khorram Abad, Lorestan, Iran; E-mail: [email protected] * Corresponding author Abstract Ticks (suborder Ixodida) ecologically divided into two nidicolous and non-nidicolous groups. More argasid ticks are classified into the former group whereas they are able to coordinate with the specific host(s) and living inside/adjacent to their host’s nest. The current study focused on an argasid tick species adapted to bats in Iran. Tick specimens collected on a bat were captured in a thatched rural house located in suburban Koohdasht in Lorestan province, west of Iran. Tick’s larvae and nymphs were identified as Argas vespertilionis (Latreille, 1796) by using descriptive morphological keys. This argasid tick behaves as a nidicolous species commonly parasitizing bats. We suggest that future studies be conducted on ticks parasitizing wild animals for detection of real fauna of Iranian ticks. Key words: Argas vespertilionis, nidicolous tick, Ixodida, bat, Iran Introduction Only 10% of all ticks (suborder Ixodida) including soft ticks (Argasidae) and hard ticks (Ixodidae) may be captured on livestock and domestic animals (Oliver 1989), and remaining species must be searched through wild animals (e.g. birds, mammals, lizards, rodents, even amphibians and the other none-domestic animals). Acarologists need to determine the biological models of tick parasitism on wildlife and the factors that have permitted to less than 10% of all ticks to become economically important pests and vectors of disease agents to livestock and human (Hoogstraal 1985).