Wsn 47(2) (2016) 298-317 Eissn 2392-2192
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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. -
An In-Depth Biochemical Analysis of Spider and Silkworm Silk
Unravelling the secrets of silk: an in-depth biochemical analysis of spider and silkworm silk Hamish Cameron Craig A thesis in fulfilment of the requirements for the degree of Doctor of Philosophy School of Biological, Earth and Environmental Sciences Evolution and Ecology Research Centre UNSW February 2019 THE UNIVERSITY OF NEW SOUTH WALES Thesis/Dissertation Sheet Surname or Family name: Craig First name: Hamish Other name/s: Cameron Abbreviation for degree as given in the University calendar: PhD School: School of Biological, Earth and Environmental Sciences Faculty: Faculty of Science Title: Unravelling the secrets of silk: a detailed examination of silk biology and structure Abstract: Silk is a protein-based biopolymer produced by many different invertebrate species from amphipods to spiders. Its incredible material properties, biocompatibility and antimicrobial properties make it one of the most desirable natural fibres in the race for new materials, with major potential impacts in everything from biomedical research to its aerospace applications. Although silk has been studied in detail since the latter part of the 20th century the field is still unable to produce truly comparable synthetics due to the complexity of biological factors involved in influencing silks properties. The major focus of this thesis is examining biological and structural factors that impact silk properties within spiders and silkworms. To examine this, I analysed silk across many scales from phylogenetic trends in amino acid composition and material properties, down to the Nano-scale examining the impacts of molecular structure, pioneering new methods of silk analysis through utilisation of dynamic nuclear polarization (DNP) solid-state nuclear magnetic resonance (ssNMR) spectroscopy. -
The Road Travelled by Australian Trapdoor Spiders
Discovered words and photo by Mark Harvey, WA Museum ustralia is home to many unique spiders with most species occurring Anowhere else on Earth. Many have their origins in the distant past, when Australia was part of Gondwana in the Mesozoic, ca. 180 million years ago. Australia, New Zealand, South America, Africa, Madagascar, Antarctica and the Indian sub-continent, plus a few small islands, once formed a massive southern supercontinent known as Gondwana that gradually fragmented from the Jurassic, ca. 180–160 million years ago. Evidence of the connection between these continental blocks can be found in the fossil record The road travelled by Australian of some plants and animals, but most strikingly in the presence of related groups trapdoor spiders of organisms in the modern biota. But back to spiders. There are three major groups of spiders: the Mesothelae (a Australia that lives in shallow burrows with Above An undescribed species of Conothele. group of primitive spiders now only found in a flap-like lid. It was discovered by Adelaide Asia), the Mygalomorphae (trapdoor spiders University PhD student, Sophie Harrison, and their relatives) and the Araneomorphae to be most closely related to spiders of (all other spiders). The Australian the same genus from South Africa. Using timeline of Australia bumping into Asia. mygalomorphs include trapdoor, funnel- molecular sequence data, Sophie found that He also noted that there were two distinct web and mouse spiders, and tarantulas. the spider, Moggridgea rainbowi, diverged habitat preferences for Australian Conothele. Most Australian mygalomorph spiders from its African cousins sometime between Some species built burrows on tree trunks have their origins in Gondwana. -
Comparison of Reproductive Traits Between Two Salt-Marsh Wolf Spiders (Araneae, Lycosidae) Under Different Habitat Suitability Conditions
Animal Biology 61 (2011) 127–138 brill.nl/ab Comparison of reproductive traits between two salt-marsh wolf spiders (Araneae, Lycosidae) under different habitat suitability conditions Charlène Puzin1, Anthony Acou2, Dries Bonte3 and Julien Pétillon4,∗ 1 Université de Rennes 1, U.R.U. 420 – Biodiversité et Gestion des territoires, U.F.R. SVE, 263 Avenue du Général Leclerc, CS 74205, 35042 Rennes Cedex, France 2 Muséum National d’Histoire Naturelle, U.M.R. 7208 BOREA – Biologie des Organismes et Ecosystèmes Aquatiques, Station Marine de Dinard, BP 70134, 38 rue du Port Blanc, 35800 Dinard, France 3 Ghent University, Terrestrial Ecology Unit (TEREC), Department of Biology, K. L. Ledeganckstraat 35, 9000 Ghent, Belgium 4 University of Antwerp, Evolutionary Ecology Group, Department of Biology, Groenenborgerlaan 171, 2020 Antwerpen, Belgium Abstract Salt-marsh invasions by the grass Elymus athericus (Poaceae) recently transformed usual areas dom- inated by Atriplex portulacoides (Chenopodiaceae) into homogeneous meadows. Two wolf spider species, Pardosa purbeckensis and Arctosa fulvolineata, show contrasting densities and habitat prefer- ences in salt marshes (respectively dominant and co-dominant ground-living spiders) and oppositely respond to the grass invasion. This allowed us to test whether invasive species that alter habitat struc- ture affect reproduction in addition to previously recorded changes in density. Reproductive traits (female mass, cocoon mass, number and volume of eggs, hatched cocoon as a proxy of reproduc- tion date) were studied in both invaded and natural salt marshes during 2007 and 2008 in the Mont St-Michel Bay (France). In both species, reproductive outputs (cocoon mass) were higher in optimal habitats and volume of eggs was found to be independent from female mass, whereas the latter sig- nificantly influenced the number of eggs. -
Prey of the Jumping Spider Phidippus Johnsoni (Araneae : Salticidae)
Jackson, R. R . 1977 . Prey of the jumping spider Phidippus johnsoni (Araneae : Salticidae) . J. Arachnol. 5 :145-149 . PREY OF THE JUMPING SPIDER PHIDIPPUS JOHNSONI (ARANEAE : SALTICIDAE) Robert R. Jackson I Zoology Departmen t University of Californi a Berkeley, California 9472 0 ABSTRACT Field data indicate that P. johnsoni is an euryphagous predator, whose diet includes organisms (aphids, ants, opilionids) sometimes considered distasteful to spiders . Other spiders are preyed upon , including conspecifics. Prey size tends to be one quarter to three quarters the size of the predator . INTRODUCTION Since spiders are probably a dominant group of predators of insects (Bristowe, 1941 ; Riechert, 1974; Turnbull, 1973), there is considerable interest in their feeding ecology . Spiders have usually been considered to be euryphagous predators with a stabilizing , rather than regulative, effect on insect populations (Riechert, 1974) . However, informa- tion concerning the prey taken by particular spider species, in the field, is limited . Field studies by Edgar (1969, 1970), Robinson and Robinson (1970) and Turnbull (1960) are especially noteworthy . During the course of a study of the reproductive biology of Phidippus johnsoni (Peckham and Peckham) (Jackson, 1976), occasionally individuals of this species were found in the field holding prey in their chelicerae . Each prey discovered in this way i s listed in Table 1 . In addition, Ken Evans and Charles Griswold, who were familiar wit h this species, recorded observations of P. johnsoni with prey. (Their data are included in Table 1 .) These data came from a variety of habitats in western North America, most o f which have been described elsewhere (Jackson, 1976) . -
The Phylogenetic Distribution of Sphingomyelinase D Activity in Venoms of Haplogyne Spiders
Comparative Biochemistry and Physiology Part B 135 (2003) 25–33 The phylogenetic distribution of sphingomyelinase D activity in venoms of Haplogyne spiders Greta J. Binford*, Michael A. Wells Department of Biochemistry and Molecular Biophysics, University of Arizona, Tucson, AZ 85721, USA Received 6 October 2002; received in revised form 8 February 2003; accepted 10 February 2003 Abstract The venoms of Loxosceles spiders cause severe dermonecrotic lesions in human tissues. The venom component sphingomyelinase D (SMD) is a contributor to lesion formation and is unknown elsewhere in the animal kingdom. This study reports comparative analyses of SMD activity and venom composition of select Loxosceles species and representatives of closely related Haplogyne genera. The goal was to identify the phylogenetic group of spiders with SMD and infer the timing of evolutionary origin of this toxin. We also preliminarily characterized variation in molecular masses of venom components in the size range of SMD. SMD activity was detected in all (10) Loxosceles species sampled and two species representing their sister taxon, Sicarius, but not in any other venoms or tissues surveyed. Mass spectrometry analyses indicated that all Loxosceles and Sicarius species surveyed had multiple (at least four to six) molecules in the size range corresponding to known SMD proteins (31–35 kDa), whereas other Haplogynes analyzed had no molecules in this mass range in their venom. This suggests SMD originated in the ancestors of the Loxoscelesy Sicarius lineage. These groups of proteins varied in molecular mass across species with North American Loxosceles having 31–32 kDa, African Loxosceles having 32–33.5 kDa and Sicarius having 32–33 kDa molecules. -
References (The Literature Survey Was Completed in the Spring of 1995)
References (The literature survey was completed in the Spring of 1995) Abdullah MAR, Abulfatih HA (1995) Predation of Acacia seeds by bruchid beetles and its relation to altitudinal gradient in south-western Saudi Arabia. J Arid Environ 29:99- 105 Abramsky Z, Pinshow B (1989) Changes in foraging effort in two gerbil species with habitat type and intra- and interspecific activity. Oikos 56:43-53 Abramsky Z, Rosenzweig ML, Pins how BP, Brown JS, Kotler BP, Mitchell WA (1990) Habitat selection: an experimental field test with two gerbil species. Ecology 71:2358-2369 Abramsky Z, Shachak M, Subrach A, Brand S, Alfia H (1992) Predator-prey relationships: rodent-snail interaction in the Central Negev Desert ofIsrael. Oikos 65:128-133 Abushama FT (1972) The repugnatorial gland of the grasshopper Poecilocerus hiero glyphicus (Klug). J Entomol Ser A Gen EntomoI47:95-100 Abushama FT (1984) Epigeal insects. In: Cloudsley-Thompson JL (ed) Sahara desert (Key environments). Pergamon Press, Oxford, pp 129-144 Alexander AJ (1958) On the stridulation of scorpions. Behaviour 12:339-352 Alexander AJ (1960) A note on the evolution of stridulation within the family Scorpioni dae. Proc Zool Soc Lond 133:391-399 Alexander RD (1974) The evolution of social behaviour. Annu Rev Ecol Syst 5:325-383 AlthoffDM, Thompson IN (1994) The effects of tail autotomy on survivorship and body growth of Uta stansburiana under conditions of high mortality. Oecologia 100:250- 255 Applin DG, Cloudsley-Thompson JL, Constantinou C (1987) Molecular and physiological mechanisms in chronobiology - their manifestations in the desert ecosystem. J Arid Environ 13:187-197 Arnold EN (1984) Evolutionary aspects of tail shedding in lizards and their relatives. -
Notes on Three Poorly Known Arctosa Species from China (Araneae: Lycosidae)
Zootaxa 3404: 53–68 (2012) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2012 · Magnolia Press ISSN 1175-5334 (online edition) Notes on three poorly known Arctosa species from China (Araneae: Lycosidae) LU-YU WANG1, YURI M. MARUSIK2,3 & ZHI-SHENG ZHANG1,4 1Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Life Science, Southwest University, Chongqing 400715, China 2Institute for Biological Problems of the North of the Russian Academy of Sciences, Portovaya Str. 18, 685000 Magadan, Russia. E-mail: [email protected] 3Zoological Museum, University of Turku, FI-20014, Turku, Finland 4Corresponding author. E-mail: [email protected] Abstract Three species of the genus Arctosa are revised and their relationship with A. cinerea, the type species of the genus, is dis- cussed. Arctosa binalis Yu & Song, 1988 is a junior synonym of A. depectinata (Bösenberg & Strand, 1906). Males of Arctosa gougu Chen & Song, 1999 and Arctosa vaginalis Yu & Song, 1988 are described for the first time. All specimens examined were collected from the Yunnan Province, China. Morphological illustrations, photos, descriptions and SEM photographs of the male bulbus of all species are given. Stridulatory files on chelicerae in Lycosidae are reported for the first time. Key words: Taxonomy, wolf spiders, morphology, redescription, distribution Introduction The wolf spider genus Arctosa C.L. Koch, 1847 with 171 species (Platnick 2012), is one of the largest genera of Lycosidae. The genus has been relatively well revised in Europe (Lugetti & Tongiorgi 1965), the Nearctic (Dondale and Redner 1983) and Japan (Tanaka 2009). In this genus, 78 species are known from only one sex (16 from males and 62 from females). -
Tarantulas and Social Spiders
Tarantulas and Social Spiders: A Tale of Sex and Silk by Jonathan Bull BSc (Hons) MSc ICL Thesis Presented to the Institute of Biology of The University of Nottingham in Partial Fulfilment of the Requirements for the Degree of Doctor of Philosophy The University of Nottingham May 2012 DEDICATION To my parents… …because they both said to dedicate it to the other… I dedicate it to both ii ACKNOWLEDGEMENTS First and foremost I would like to thank my supervisor Dr Sara Goodacre for her guidance and support. I am also hugely endebted to Dr Keith Spriggs who became my mentor in the field of RNA and without whom my understanding of the field would have been but a fraction of what it is now. Particular thanks go to Professor John Brookfield, an expert in the field of biological statistics and data retrieval. Likewise with Dr Susan Liddell for her proteomics assistance, a truly remarkable individual on par with Professor Brookfield in being able to simplify even the most complex techniques and analyses. Finally, I would really like to thank Janet Beccaloni for her time and resources at the Natural History Museum, London, permitting me access to the collections therein; ten years on and still a delight. Finally, amongst the greats, Alexander ‘Sasha’ Kondrashov… a true inspiration. I would also like to express my gratitude to those who, although may not have directly contributed, should not be forgotten due to their continued assistance and considerate nature: Dr Chris Wade (five straight hours of help was not uncommon!), Sue Buxton (direct to my bench creepy crawlies), Sheila Keeble (ventures and cleans where others dare not), Alice Young (read/checked my thesis and overcame her arachnophobia!) and all those in the Centre for Biomolecular Sciences. -
By the Wandering Spider Ctenus Ornatus (Araneae: Ctenidae) in Southeastern Brazil
Herpetology Notes, volume 8: 329-330 (2015) (published online on 16 June 2015) Predation on the tropical bullfrog Adenomera marmorata (Anura: Leptodactylidae) by the wandering spider Ctenus ornatus (Araneae: Ctenidae) in southeastern Brazil Lucas Coutinho Amaral¹,*, Pedro de Souza Castanheira², Sergio Potsch de Carvalho-e-Silva¹ and Renner Luiz Cerqueira Baptista² Anurans are common preys to some species of spiders tiny middle eyes and two large posterior eyes (Jocqué (Menin et al., 2005). Not only adults (e.g., Barej et al., and Dippenaar-Schoeman, 2006). Ctenids are nocturnal 2005), but also tadpoles are preyed on by spiders (e.g., hunters, running mainly on the leaf litter. They use mainly Folly et al., 2014a; Luiz et al., 2013). The frog species vibration and visual contact to locate prey, catching and Adenomera marmorata Steindachner, 1867, occurs in killing them with their powerful poison, delivered by the the Atlantic Rain Forest in southeastern Brazil, from fangs of their strong chelicerae (Jocqué and Dippenaar- Rio de Janeiro to Santa Catarina states (Frost, 2015), Schoeman, 2006). Ctenus ornatus (Keyserling, 1877) is and is one of the most abundant amphibian species in a large and very common ground spider in the Atlantic the leaf-litter (Heyer et al., 1990; Rocha et al., 2007). It Forest, distributed from Pernambuco state, in Northeast, is mostly a nocturnal frog, but males can also be heard to Goiás state, in the West, both in Brazil, to Misiones, at anytime of the day during rainy days (Izecksohn and Argentina (Brescovit and Simó, 2007). Carvalho-e-Silva, 2001). Males call from chambers The following event was observed during a dug in the ground, where the females lay their eggs herpetological field work at approximately 07:30 pm embedded in foam nests (Izecksohn and Carvalho-e- on 10 August, 2014, at the Centro Marista São José Silva, 2001). -
Mai Po Nature Reserve Management Plan: 2019-2024
Mai Po Nature Reserve Management Plan: 2019-2024 ©Anthony Sun June 2021 (Mid-term version) Prepared by WWF-Hong Kong Mai Po Nature Reserve Management Plan: 2019-2024 Page | 1 Table of Contents EXECUTIVE SUMMARY ................................................................................................................................................... 2 1. INTRODUCTION ..................................................................................................................................................... 7 1.1 Regional and Global Context ........................................................................................................................ 8 1.2 Local Biodiversity and Wise Use ................................................................................................................... 9 1.3 Geology and Geological History ................................................................................................................. 10 1.4 Hydrology ................................................................................................................................................... 10 1.5 Climate ....................................................................................................................................................... 10 1.6 Climate Change Impacts ............................................................................................................................. 11 1.7 Biodiversity ................................................................................................................................................ -
Spiders 27 November-5 December 2018 Submitted: August 2019 Robert Raven
Bush Blitz – Namadgi, ACT 27 Nov-5 Dec 2018 Namadgi, ACT Bush Blitz Spiders 27 November-5 December 2018 Submitted: August 2019 Robert Raven Nomenclature and taxonomy used in this report is consistent with: The Australian Faunal Directory (AFD) http://www.environment.gov.au/biodiversity/abrs/online-resources/fauna/afd/home Page 1 of 12 Bush Blitz – Namadgi, ACT 27 Nov-5 Dec 2018 Contents Contents .................................................................................................................................. 2 List of contributors ................................................................................................................... 2 Abstract ................................................................................................................................... 4 1. Introduction ...................................................................................................................... 4 2. Methods .......................................................................................................................... 4 2.1 Site selection ............................................................................................................. 4 2.2 Survey techniques ..................................................................................................... 4 2.2.1 Methods used at standard survey sites ................................................................... 5 2.3 Identifying the collections .........................................................................................