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A Checklist of the Non -Acarine Arachnids
Original Research A CHECKLIST OF THE NON -A C A RINE A R A CHNIDS (CHELICER A T A : AR A CHNID A ) OF THE DE HOOP NA TURE RESERVE , WESTERN CA PE PROVINCE , SOUTH AFRIC A Authors: ABSTRACT Charles R. Haddad1 As part of the South African National Survey of Arachnida (SANSA) in conserved areas, arachnids Ansie S. Dippenaar- were collected in the De Hoop Nature Reserve in the Western Cape Province, South Africa. The Schoeman2 survey was carried out between 1999 and 2007, and consisted of five intensive surveys between Affiliations: two and 12 days in duration. Arachnids were sampled in five broad habitat types, namely fynbos, 1Department of Zoology & wetlands, i.e. De Hoop Vlei, Eucalyptus plantations at Potberg and Cupido’s Kraal, coastal dunes Entomology University of near Koppie Alleen and the intertidal zone at Koppie Alleen. A total of 274 species representing the Free State, five orders, 65 families and 191 determined genera were collected, of which spiders (Araneae) South Africa were the dominant taxon (252 spp., 174 genera, 53 families). The most species rich families collected were the Salticidae (32 spp.), Thomisidae (26 spp.), Gnaphosidae (21 spp.), Araneidae (18 2 Biosystematics: spp.), Theridiidae (16 spp.) and Corinnidae (15 spp.). Notes are provided on the most commonly Arachnology collected arachnids in each habitat. ARC - Plant Protection Research Institute Conservation implications: This study provides valuable baseline data on arachnids conserved South Africa in De Hoop Nature Reserve, which can be used for future assessments of habitat transformation, 2Department of Zoology & alien invasive species and climate change on arachnid biodiversity. -
Vibratory Communication in the Black Widow Spider, Latrodectus Hesperus (Araneae: Theridiidae)
Vibratory Communication in the Black Widow Spider, Latrodectus hesperus (Araneae: Theridiidae) by Senthurran Sivalinghem A thesis submitted in conformity with the requirements for the degree of Doctor of Philosophy Department of Ecology and Evolutionary Biology University of Toronto © Copyright by Senthurran Sivalinghem 2020 Vibratory Communication in the Black Widow Spider, Latrodectus hesperus (Araneae: Theridiidae) Senthurran Sivalinghem Doctor of Philosophy Department of Ecology and Evolutionary Biology University of Toronto 2020 Abstract Several studies have described vibration producing behaviours across many web-building spiders, and vibratory communication is thought to play an integral role during male-female interactions. Despite the presumed ubiquity of vibratory communication in this group of spiders, very little is known about the characteristics and functions of the signals involved, how signals are produced and transmitted through webs, or how vibrations are perceived. In this thesis, I used the western black widow spider, Latrodectus hesperus, as my focal organism, to investigate the details of vibratory communication from sender to the receiver. My results show that male L. hesperus courtship vibration signals comprise three distinct components (abdominal tremulation, bounce and web plucks), each produced using different signal production mechanism. Larger males produced bounce and web pluck signals with high power, which suggests that these signals may carry information about male traits. I found that during the early phase of courtship, males produced these different signal components haphazardly, with little temporal organization among the individual components (unstructured signaling). However, during the later phase of courtship, as males approach females, males intermittently organized signal components into a stereotyped temporal sequence (structured signaling). -
FNN 314 Final Version.Pub
Field Nats News No.314 Newsletter of the Field Naturalists Club of Victoria Inc. Editor: Joan Broadberry 03 9846 1218 1 Gardenia Street, Blackburn Vic 3130 Founding editor: Dr Noel Schleiger Telephone 03 9877 9860 Reg. No. A0033611X P.O. Box 13, Blackburn 3130 www.fncv.org.au Understanding Patron: The Honourable Linda Dessau, AC Our Natural World Newsletter email: [email protected] Est. 1880 (Office email: [email protected]) Governor of Victoria Office Hours: Monday and Tuesday 10.00 am - 4 pm. December 2020/January 2021 This is the last FNN for 2020 and I would From the President like to thank and congratulate the editorial As this issue covers two months, team for a sterling effort under very trying December 2020 and January circumstances. I encourage everyone to continue sending photos and observations 2021, the due date for FNN 315 to Joan for inclusion in forthcoming editions. I wish you all a safe and productive (the February edition) will be holiday season and hope to see you in person in 2021 when possible. 10 am Tuesday 5th January 2021. We will be upgrading the washrooms/toilets at the hall over the break to provide safe hand washing facilities as part of a covid-19 safety management strategy. A hot water system will be installed along with hands-free taps, hands-free soap dispensers and hands-free air dryers. Where possible, hands-free door opening will be adopted. The final procedures and overall strategy will depend upon the current regulatory requirements. We have been running a number of successful Zoom meetings and presentations and expect to continue them as needed in 2021 and beyond. -
Comparative Functional Morphology of Attachment Devices in Arachnida
Comparative functional morphology of attachment devices in Arachnida Vergleichende Funktionsmorphologie der Haftstrukturen bei Spinnentieren (Arthropoda: Arachnida) DISSERTATION zur Erlangung des akademischen Grades doctor rerum naturalium (Dr. rer. nat.) an der Mathematisch-Naturwissenschaftlichen Fakultät der Christian-Albrechts-Universität zu Kiel vorgelegt von Jonas Otto Wolff geboren am 20. September 1986 in Bergen auf Rügen Kiel, den 2. Juni 2015 Erster Gutachter: Prof. Stanislav N. Gorb _ Zweiter Gutachter: Dr. Dirk Brandis _ Tag der mündlichen Prüfung: 17. Juli 2015 _ Zum Druck genehmigt: 17. Juli 2015 _ gez. Prof. Dr. Wolfgang J. Duschl, Dekan Acknowledgements I owe Prof. Stanislav Gorb a great debt of gratitude. He taught me all skills to get a researcher and gave me all freedom to follow my ideas. I am very thankful for the opportunity to work in an active, fruitful and friendly research environment, with an interdisciplinary team and excellent laboratory equipment. I like to express my gratitude to Esther Appel, Joachim Oesert and Dr. Jan Michels for their kind and enthusiastic support on microscopy techniques. I thank Dr. Thomas Kleinteich and Dr. Jana Willkommen for their guidance on the µCt. For the fruitful discussions and numerous information on physical questions I like to thank Dr. Lars Heepe. I thank Dr. Clemens Schaber for his collaboration and great ideas on how to measure the adhesive forces of the tiny glue droplets of harvestmen. I thank Angela Veenendaal and Bettina Sattler for their kind help on administration issues. Especially I thank my students Ingo Grawe, Fabienne Frost, Marina Wirth and André Karstedt for their commitment and input of ideas. -
Notes on New and Poorly Known Palaearctic Species of the Genera
Bull. Br. arachnol. Soc. (2004) 13 (2), 33–40 33 Notes on new and poorly known Palaearctic Stockholm, Sweden (Dr T. Kronestedt); species of the genera Neon, Sitticus and Synageles YMTU=personal collection of Dr Yuri Marusik, (Araneae: Salticidae) temporarily kept in Zoological Museum, Turku University, Finland; ZMTU=Zoological Museum, Dmitri V. Logunov University of Turku, Turku, Finland (Dr S. Koponen); Manchester Museum, ZMUM=Zoological Museum, Moscow State University of Manchester, University, Moscow, Russia (Dr K. G. Mikhailov). Oxford Road, Manchester, M13 9PL Abbreviations used in the text: AME=anterior median eyes, ap=apical, d=dorsal, Fm=femur, Summary Mt=metatarsus, PLE=posterior lateral eyes, pr=prolateral, Pt=patella, rt=retrolateral, Tb=tibia, Two new species are diagnosed, figured and described: v=ventral. The sequence of leg segment measurements is Neon kovblyuki sp. n. (_\; Ukraine: the Crimea) and Synageles persianus sp. n. (_\; Azerbaijan and Iran). The as follows: femur+patella+tibia+metatarsus+tarsus. male of Sitticus rivalis Simon, 1937 is figured for the first For the leg spination the system adopted is that used by time; furthermore, this species is removed from synonymy Ono (1988). All measurements are in mm. with S. striatus Emerton, 1911. Neon pusio Simon, 1937 is synonymised with Neon convolutus Denis, 1937. Neon (Dicroneon) kovblyuki sp. n. (Figs. 1–6) Introduction Types: Holotype _ (ZMUM), Ukraine, the Crimea, Cape Martyan Reserve (44(30#N, 34(15#E), 1–70 m Although the Salticidae of northern and central a.s.l., 10 March 2002, Y. M. Marusik. Paratypes: 4\ Europe are relatively well-known, those from southern (ZMUM), together with holotype. -
2017 AAS Abstracts
2017 AAS Abstracts The American Arachnological Society 41st Annual Meeting July 24-28, 2017 Quéretaro, Juriquilla Fernando Álvarez Padilla Meeting Abstracts ( * denotes participation in student competition) Abstracts of keynote speakers are listed first in order of presentation, followed by other abstracts in alphabetical order by first author. Underlined indicates presenting author, *indicates presentation in student competition. Only students with an * are in the competition. MAPPING THE VARIATION IN SPIDER BODY COLOURATION FROM AN INSECT PERSPECTIVE Ajuria-Ibarra, H. 1 Tapia-McClung, H. 2 & D. Rao 1 1. INBIOTECA, Universidad Veracruzana, Xalapa, Veracruz, México. 2. Laboratorio Nacional de Informática Avanzada, A.C., Xalapa, Veracruz, México. Colour variation is frequently observed in orb web spiders. Such variation can impact fitness by affecting the way spiders are perceived by relevant observers such as prey (i.e. by resembling flower signals as visual lures) and predators (i.e. by disrupting search image formation). Verrucosa arenata is an orb-weaving spider that presents colour variation in a conspicuous triangular pattern on the dorsal part of the abdomen. This pattern has predominantly white or yellow colouration, but also reflects light in the UV part of the spectrum. We quantified colour variation in V. arenata from images obtained using a full spectrum digital camera. We obtained cone catch quanta and calculated chromatic and achromatic contrasts for the visual systems of Drosophila melanogaster and Apis mellifera. Cluster analyses of the colours of the triangular patch resulted in the formation of six and three statistically different groups in the colour space of D. melanogaster and A. mellifera, respectively. Thus, no continuous colour variation was found. -
Visual Perception in Jumping Spiders (Araneae,Salticidae)
Visual Perception in Jumping Spiders (Araneae,Salticidae) A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy in Biology at the University of Canterbury by Yinnon Dolev University of Canterbury 2016 Table of Contents Abstract.............................................................................................................................................................................. i Acknowledgments .......................................................................................................................................................... iii Preface ............................................................................................................................................................................. vi Chapter 1: Introduction ................................................................................................................................................... 1 Chapter 2: Innate pattern recognition and categorisation in a jumping Spider ........................................................... 9 Abstract ....................................................................................................................................................................... 10 Introduction ................................................................................................................................................................ 11 Methods ..................................................................................................................................................................... -
Arachnida, Solifugae) with Special Focus on Functional Analyses and Phylogenetic Interpretations
HISTOLOGY AND ULTRASTRUCTURE OF SOLIFUGES Comparative studies of organ systems of solifuges (Arachnida, Solifugae) with special focus on functional analyses and phylogenetic interpretations HISTOLOGIE UND ULTRASTRUKTUR DER SOLIFUGEN Vergleichende Studien an Organsystemen der Solifugen (Arachnida, Solifugae) mit Schwerpunkt auf funktionellen Analysen und phylogenetischen Interpretationen I N A U G U R A L D I S S E R T A T I O N zur Erlangung des akademischen Grades doctor rerum naturalium (Dr. rer. nat.) an der Mathematisch-Naturwissenschaftlichen Fakultät der Ernst-Moritz-Arndt-Universität Greifswald vorgelegt von Anja Elisabeth Klann geboren am 28.November 1976 in Bremen Greifswald, den 04.06.2009 Dekan ........................................................................................................Prof. Dr. Klaus Fesser Prof. Dr. Dr. h.c. Gerd Alberti Erster Gutachter .......................................................................................... Zweiter Gutachter ........................................................................................Prof. Dr. Romano Dallai Tag der Promotion ........................................................................................15.09.2009 Content Summary ..........................................................................................1 Zusammenfassung ..........................................................................5 Acknowledgments ..........................................................................9 1. Introduction ............................................................................ -
Spiders (Araneae) of Churchill, Manitoba: DNA Barcodes And
Blagoev et al. BMC Ecology 2013, 13:44 http://www.biomedcentral.com/1472-6785/13/44 RESEARCH ARTICLE Open Access Spiders (Araneae) of Churchill, Manitoba: DNA barcodes and morphology reveal high species diversity and new Canadian records Gergin A Blagoev1*, Nadya I Nikolova1, Crystal N Sobel1, Paul DN Hebert1,2 and Sarah J Adamowicz1,2 Abstract Background: Arctic ecosystems, especially those near transition zones, are expected to be strongly impacted by climate change. Because it is positioned on the ecotone between tundra and boreal forest, the Churchill area is a strategic locality for the analysis of shifts in faunal composition. This fact has motivated the effort to develop a comprehensive biodiversity inventory for the Churchill region by coupling DNA barcoding with morphological studies. The present study represents one element of this effort; it focuses on analysis of the spider fauna at Churchill. Results: 198 species were detected among 2704 spiders analyzed, tripling the count for the Churchill region. Estimates of overall diversity suggest that another 10–20 species await detection. Most species displayed little intraspecific sequence variation (maximum <1%) in the barcode region of the cytochrome c oxidase subunit I (COI) gene, but four species showed considerably higher values (maximum = 4.1-6.2%), suggesting cryptic species. All recognized species possessed a distinct haplotype array at COI with nearest-neighbour interspecific distances averaging 8.57%. Three species new to Canada were detected: Robertus lyrifer (Theridiidae), Baryphyma trifrons (Linyphiidae), and Satilatlas monticola (Linyphiidae). The first two species may represent human-mediated introductions linked to the port in Churchill, but the other species represents a range extension from the USA. -
Aglaoctenus (Araneae, Lycosidae)
UNIVERSIDADE ESTADUAL DE CAMPINAS INSTITUTO DE BIOLOGIA FERNANDA VON HERTWIG MASCARENHAS FONTES ANÁLISE FILOGEOGRÁFICA DE DUAS ESPÉCIES DO GÊNERO AGLAOCTENUS (ARANEAE, LYCOSIDAE) PHYLOGEOGRAPHICAL ANALYSIS OF TWO AGLAOCTENUS SPECIES (ARANEAE, LYCOSIDAE) CAMPINAS 2016 FERNANDA VON HERTWIG MASCARENHAS FONTES ANÁLISE FILOGEOGRÁFICA DE DUAS ESPÉCIES DO GÊNERO AGLAOCTENUS (ARANEAE, LYCOSIDAE) PHYLOGEOGRAPHICAL ANALYSIS OF TWO AGLAOCTENUS SPECIES (ARANEAE, LYCOSIDAE) Tese apresentada ao Instituto de Biologia da Universidade Estadual de Campinas como parte dos requisitos exigidos para a obtenção do Título de Doutora em Genética e Biologia Molecular, na Área de Genética Animal e Evolução. Thesis presented to the Institute of Biology of the University of Campinas in partial fulfillment of the requirements for the degree of Doctor in Genetics and Molecular Biology, in the area of Animal Genetics and Evolution. ESTE ARQUIVO DIGITAL CORRESPONDE À VERSÃO FINAL DA TESE DEFENDIDA PELA ALUNA FERNANDA VON HERTWIG MASCARENHAS FONTES E ORIENTADA PELA PROFA. DRA. VERA NISAKA SOLFERINI. Orientadora: VERA NISAKA SOLFERINI CAMPINAS 2016 Campinas, 22 de setembro de 2016. COMISSÃO EXAMINADORA Profa. Dra. Vera Nisaka Solferini Dr. Marcos Roberto Dias Batista Prof. Dr. Evandro Marsola de Moraes Profa. Dra. Ana Maria Lima de Azeredo Espin Prof. Dr. Fábio Sarubbi Raposo do Amaral Os membros da Comissão Examinadora acima assinaram a Ata de Defesa, que se encontra no processo de vida acadêmica do aluno. Ao meu querido pai Saudades eternas AGRADECIMENTOS Agradeço especialmente aos meus pais, Tatiana e Antonio Fernando (in memoriam), pelo carinho e dedicação. Todo o esforço que fizeram foi imprescindível para que eu pudesse concluir mais essa etapa na minha vida. Amo vocês! Às minhas queridas irmãs e amigas, Tarsilla e Renata, que sempre estiveram ao meu lado. -
Spider Records from Caribou Mountains Wildland Provincial Park
SPIDER RECORDS FROM CARIBOU MOUNTAINS WILDLAND PROVINCIAL PARK Xysticus emertoni Dolomedes triton (Photo: D. Buckle) (Photo: R. Holmberg) Prepared by Wayne R. Nordstrom1 and Donald J. Buckle2 March 2006 1Alberta Natural Heritage Information Centre Parks and Protected Areas Division Alberta Community Development 2 620 Albert Avenue Saskatoon, SK S7N 1G7 Table of Contents 1. Introduction.................................................................................................................................. 1 2. The Study Site.............................................................................................................................. 1 3. Methods ....................................................................................................................................... 4 3.1 Survey Dates....................................................................................................................... 4 3.2 Collection of Spiders .......................................................................................................... 4 3.3 Identification of Spiders ..................................................................................................... 4 4. Results and Discussion................................................................................................................ 4 5. Conclusion ................................................................................................................................... 9 6. Acknowlegements....................................................................................................................... -
Araneae, Lycosidae, Sosippinae)
2007. The Journal of Arachnology 35:313–317 A REVIEW OF THE WOLF SPIDER GENUS HIPPASELLA (ARANEAE, LYCOSIDAE, SOSIPPINAE) E´ der S. S. A´ lvares1,2 and Antonio D. Brescovit1: 1Laborato´rio de Artro´podes, Instituto Butantan, Sa˜o Paulo, Sa˜o Paulo, Brazil 2Departamento de Zoologia, Instituto de Biocieˆncias, Universidade de Sa˜o Paulo, Sa˜o Paulo, Brazil. E-mail: [email protected] ABSTRACT. The monotypic genus Hippasella Mello-Leita˜o 1944 is revised, and its type-species H. nitida Mello-Leita˜o 1944 is considered a junior synonym of Tarentula guaquiensis Strand 1908, from Bolivia. Hippasella guaquiensis (Strand) comb. nov. is redescribed and the female genitalia are illustrated for the first time. This species now is recorded from Peru, Bolivia and Argentina. It appears to prefer vegetation near water. RESUMO. Ogeˆnero monotı´pico Hippasella Mello-Leita˜o 1944 e´ revisado e sua espe´cie-tipo H. nitida Mello-Leita˜o 1944 e´ considerada um sinoˆnimo ju´nior de Tarentula guaquiensis Strand 1908, da Bolı´via. Hippasella guaquiensis (Strand) comb. nov. e´ redescrita e a genita´lia da feˆmea e´ ilustrada pela primeira vez. Esta espe´cie e´ agora conhecida do Peru, Bolı´via e da Argentina, onde parece preferir a vegetac¸a˜o pro´xima a`a´gua. Keywords: Neotropical, taxonomy, redescription The genus Hippasella was proposed by Me- turais, Porto Alegre, and in the Museo de llo-Leita˜o (1944) based on Hippasella nitida Historia Natural San Marcos, Lima, we found Mello-Leita˜o 1944, a species known only some additional specimens of this species, in- from a male specimen collected in La Plata, cluding females.