Biodiversity of Orb-Web Spiders (Family: Araneidae)
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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. -
A Taxonomic Revision of the Orb Weaver Genus Acacesia (Araneae: Araneidae)
A TAXONOMIC REVISION OF THE ORB WEAVER GENUS ACACESIA (ARANEAE: ARANEIDAE) BY St3sAy GIt3Ec< ABSTRACT There are five species of Acacesia which range collectively from southern North America to Argentina. Two are previously known members of the genus, A. cornigera Petrunkevitch and A. hamata (Hentz). Three of these are new species: A. villalobosi and A. yacuiensis, from southern Brazil, and A. benigna from Bolivia and Peru. INTRODUCTION Acacesia is a genus of orb-weaving spiders common and endemic to the Americas, proposed by Simon in 1892. Hentz named the type species Epeira foliata in 1847. The genus con- tained the single species A. hamata until Petrunkevitch (1925) described A. cornigera. Subsequently published names, illustra- tions, and descriptions of new species of Acacesia have turned out to be synonyms of the two extant species (Chamberlin and Ivie 1936, Badcock 1932). Levi (1976) redescribed A. hamata in a revi- sion of Nearctic orb weaver genera, mentioning the Neotropical A. cornigera in passing. He hypothesized at the time that "there are three or four additional species of Acacesia, all Neotropical and all similar in appearance." The specimens I have examined for the current taxonomic revision corroborate this statement, and I expand the genus to include three new South American species. This study represents an addition to Levi's ongoing project of revising Neotropical orb weavers. I here report the results of my taxonomic project for which I examined and illustrated over 350 museum specimens. I describe factors I considered in delimiting new species such as their Harvard College, Harvard University, Cambridge, MA 02138 current address: Department of Entomology, Comstock Hall, Cornell University, Ithaca, NY 14853 Manuscript received 7 July 1993. -
Apis Mellifera)
Experimental and Applied Acarology https://doi.org/10.1007/s10493-020-00525-y Electrotarsogram responses to synthetic odorants by Varroa destructor, a primary parasite of western honey bees (Apis mellifera) Michael Light1 · Dave Shutler1 · G. Christopher Cutler2 · N. Kirk Hillier1 Received: 21 September 2019 / Accepted: 8 July 2020 © Springer Nature Switzerland AG 2020 Abstract Olfaction is a key sensory modality for many arthropods and could be used as a tool in pest management through manipulation of pest behavior. Management of Varroa destructor, important parasitic mites of honey bees, could be improved through better understanding of the chemical ecology of this host-parasite relationship. We refned techniques of mount- ing mites to obtain electrophysiological recordings (electrotarsograms) of their responses to synthetic odor stimuli. Results of 271 electrotarsogram recordings from V. destructor revealed responses to 10 odorants relative to solvent controls. Electrotarsogram responses to methyl palmitate, ethyl palmitate, and 2-heptanol were highest at the lowest stimulus loading (10 ng) we tested, suggesting that V. destructor may have acute sensitivity to low concentrations of some odors. Results suggest that odorant origin (e.g., methyl oleate from honey bee larvae, geraniol from adult honey bee alarm pheromone, and α-terpineol, a plant secondary metabolite) can infuence the degree of electrophysiological response. Varroa destructor tended to be more responsive to known attractants and repellents relative to previously unexplored odorants and some repellent terpenes. Electrotarsograms ofer the potential for screening odors to determine their importance in V. destructor host detection. Keywords Acari · Apis mellifera · Electrophysiology · Electrotarsography · Semiochemicals Electronic supplementary material The online version of this article (https ://doi.org/10.1007/s1049 3-020-00525 -y) contains supplementary material, which is available to authorized users. -
Orb Weavers, Neoscona Crucifera (Lucas 1839) and Neoscona Domiciliorun (Hentz) (Arachnidae: Araneae: Araneidae)1 G
EENY316 Orb Weavers, Neoscona crucifera (Lucas 1839) and Neoscona domiciliorun (Hentz) (Arachnidae: Araneae: Araneidae)1 G. B. Edwards2 Introduction Neoscona crucifera (Lucas 1839) and N. domiciliorum (Hentz 1847) are common and conspicuous members of the moist woodland communities in much of Florida. These spiders are beneficial, consuming a variety of insects. Although typically nocturnal throughout most of their life spans, adult females can be found sitting head down in the hubs of their webs during daylight hours of the fall season. Bites from these spiders are not known to cause serious effects to humans. Distribution These spiders have a wide geographic range: N. crucifera is found from Lake Okeechobee in southern Florida north to New England, west to Minnesota, and southwest to Arizona and central Mexico, whereas N. domiciliorum occurs southeast of a line drawn from Massachusetts to Indiana southwest to Texas. In the more northern states, males may mature as early as late June and females in July Figure 1. Dorsal view of female Neoscona crucifera (Lucas), an orb (Berman and Levi 1971), but in Florida, adults usually are weaver. not apparent until late August. Credits: G.B. Edwards, FDACS–DPI Systematics These two species have been confused with each other, mostly due to the interpretations by various authors of the descriptions by Walckenaer (1841) of two forms of Epeira 1. This document is EENY316 (originally published as DPI Entomology Circular 266), one of a series of the Department of Entomology and Nematology, UF/IFAS Extension. Original publication date March 2004. Reviewed February 2021. Visit the EDIS website at https://edis.ifas.ufl.edu for the currently supported version of this publication. -
Sexual Selection Research on Spiders: Progress and Biases
Biol. Rev. (2005), 80, pp. 363–385. f Cambridge Philosophical Society 363 doi:10.1017/S1464793104006700 Printed in the United Kingdom Sexual selection research on spiders: progress and biases Bernhard A. Huber* Zoological Research Institute and Museum Alexander Koenig, Adenauerallee 160, 53113 Bonn, Germany (Received 7 June 2004; revised 25 November 2004; accepted 29 November 2004) ABSTRACT The renaissance of interest in sexual selection during the last decades has fuelled an extraordinary increase of scientific papers on the subject in spiders. Research has focused both on the process of sexual selection itself, for example on the signals and various modalities involved, and on the patterns, that is the outcome of mate choice and competition depending on certain parameters. Sexual selection has most clearly been demonstrated in cases involving visual and acoustical signals but most spiders are myopic and mute, relying rather on vibrations, chemical and tactile stimuli. This review argues that research has been biased towards modalities that are relatively easily accessible to the human observer. Circumstantial and comparative evidence indicates that sexual selection working via substrate-borne vibrations and tactile as well as chemical stimuli may be common and widespread in spiders. Pattern-oriented research has focused on several phenomena for which spiders offer excellent model objects, like sexual size dimorphism, nuptial feeding, sexual cannibalism, and sperm competition. The accumulating evidence argues for a highly complex set of explanations for seemingly uniform patterns like size dimorphism and sexual cannibalism. Sexual selection appears involved as well as natural selection and mechanisms that are adaptive in other contexts only. Sperm competition has resulted in a plethora of morpho- logical and behavioural adaptations, and simplistic models like those linking reproductive morphology with behaviour and sperm priority patterns in a straightforward way are being replaced by complex models involving an array of parameters. -
Diversity of Spiders from Zolambi Region of Chandoli National Park
IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS) e-ISSN: 2278-3008, p-ISSN:2319-7676. Volume 10, Issue 2 Ver. 1 (Mar -Apr. 2015), PP 30-33 www.iosrjournals.org Diversity of Spiders from Zolambi Region of Chandoli National Park Dr. Suvarna More Dept. of Zoology P. V. P. Mahavidyalaya, Kavathe Mahankal, Dist. -Sangli. (MS), India 416405 Abstract: Diversity of spiders from Zolambi region of Chandoli National Park in Western Ghats is studied for the first time. A total of 90 species belonging to 55 genera and 19 families are recorded from the study area during 2011-2013 with a dominance of Araneid, Salticid and Lycosid spiders. Key words: Spider diversity, Western Ghats I. Introduction Spiders comprise one of the largest orders of animals. The spider fauna of India has never been studied in its entirety despite of contributions by many arachnologists since Stoliczka (1869). The pioneering contribution on the taxonomy of Indian spiders is that of European arachnologist Stoliczka (1869). Review of available literature reveals that the earliest contribution by Blackwall (1867); Karsch (1873); Simon (1887); Thorell (1895) and Pocock (1900) were the pioneer workers of Indian spiders. They described many species from India. Tikader (1980, 1982), Tikader, described spiders from India. Tikader (1980) compiled a book on Thomisidae spiders of India, comprising two subfamilies, 25 genera and 115 species. Pocock (1900) and Tikader (1980, 1987) made major contributions to the Indian Arachnology, have high lightened spider studies to the notice of other researcher. Tikader (1987) also published the first comprehensive list of Indian spiders, which included 1067 species belonging to 249 genera in 43 families. -
Ontogenetic Changes in the Spinning Fields of Nuctenea Cornuta and Neoscona Iheish Araneae, Araneidae)
Yu. L. and J. A. Coddington. J990. Ontogenetic changes in the spinning fields of Nuctenea cornuta and Neoscona iheisH Araneae, Araneidae). J. Arachnol., 18:331-345. ONTOGENETIC CHANGES IN THE SPINNING FIELDS OF NUCTENEA CORNUTA AND NEOSCONA THEISI (ARANEAE, ARANEIDAE) Liuming Yu Div. of Biological Sciences University of Missouri Columbia, Missouri 65211 USA and Jonathan A. Coddington Department of Entomology National Museum of Natural History Smithsonian Institution, Washington, DC 20560 USA ABSTRACT The postembryonie development of spinning organs of Nuctenea cornuta (Clerck) and Neoscona theisi (Walckenaer) (Araneae, Araneidae), was studied with SEM. emphasizing first appearance of, and increase in. spigot and fusule complements. Our results suggest that these species may renew their spinning fields by two distinct methods during their ontogeny: spigots may be merely molted in situ like any other cuticular appendage; and/or spigots in one position are lost and "replaced" by an apparently new spigot in a new position. Some or all of each class of fusule (aciniform and pyrifornf) as well as major and minor ampullate spigots are replaced as well as merely molted. Flagelliform and aggregate spigots seem to be merely molted, never replaced. Evidence for these modes of replacement are the apparently vestigial spinning structures that persist from the previous instar, termed "nubbins" in the case of spigots, and "tartipores" in the case of fusules, as well as patterns in the increase in numbers of fusules and spigots. Spinneret ontogeny confirms Theridiidae and Tetragnathidae as phylogenetically derived taxa relative to Araneidae. INTRODUCTION Previous work on spinnerets has concerned histology (see Kovoor 1987 for a review), morphology (Glatz 1967, 1972, 1973; Mikulska 1966, 1967, 1969; Wasowska 1966, 1967, 1970, 1973; Coddington 1989), and function (Peters 1983. -
Morphology of Female Genital Organs of Three Spider Species from Genus Neoscona (Araneae- Araneidae) Sonali P
IJRBAT, Special Issue (2), Vol-V, July 2017 ISSN No. 2347-517X (Online) 0orphology of female genital organs of three spider species from genus Neoscona (Araneae- Araneidae) Sonali P. Chapke, (hagat Vi-ay8. ( and Ra-a. I. A. Shri Shiva i college of Art Comme rce and Science, Akola IShri Shiva i Colle ge, Akot. sc7..1/gmail.com Abstract The morphology of the female genitalia is assumed to play a crucial role in shaping the sperm priority patte rns in spiders that probably are reflected in the mating behavior of a given species. Be e1amined the morphology of virgin femalesK genitalia by means of light microscopy of cleared specimens. The female epigynal plate, of three species of genus Neoscona - Neoscona theisi, Neoscona sinhagadensis and Neoscona rumpfi 0ere dissected out, and internal ginataila are e1posed and described. In all three species the internal genitalia, consist of a pair of spermatheca provided 0ith fertiliCation duct, and copulatory duct. Species specific variations are reported, in the epigyne and internal genitalia. The epigynal plate in N.theisi, and N.rumpfi have a length of aboutn0.2 mm 0hile ventral length in N. sinhagadensis was 0.75mm.Though the scape is found all the three species but its siCe and shape varies. Key words5 Neoscona, genital morphology, epigynum, cape, spermatheca Introduction2 dark. 8nce complete the host 0ill position herself The female genital structure, or e pigynum, is a head do0n at the hub (ce ntre) of the 0eb 0aiting harde ned plate on the unde rside of the abdomen for prey to fly into the 0eb. -
196 Arachnology (2019)18 (3), 196–212 a Revised Checklist of the Spiders of Great Britain Methods and Ireland Selection Criteria and Lists
196 Arachnology (2019)18 (3), 196–212 A revised checklist of the spiders of Great Britain Methods and Ireland Selection criteria and lists Alastair Lavery The checklist has two main sections; List A contains all Burach, Carnbo, species proved or suspected to be established and List B Kinross, KY13 0NX species recorded only in specific circumstances. email: [email protected] The criterion for inclusion in list A is evidence that self- sustaining populations of the species are established within Great Britain and Ireland. This is taken to include records Abstract from the same site over a number of years or from a number A revised checklist of spider species found in Great Britain and of sites. Species not recorded after 1919, one hundred years Ireland is presented together with their national distributions, before the publication of this list, are not included, though national and international conservation statuses and syn- this has not been applied strictly for Irish species because of onymies. The list allows users to access the sources most often substantially lower recording levels. used in studying spiders on the archipelago. The list does not differentiate between species naturally Keywords: Araneae • Europe occurring and those that have established with human assis- tance; in practice this can be very difficult to determine. Introduction List A: species established in natural or semi-natural A checklist can have multiple purposes. Its primary pur- habitats pose is to provide an up-to-date list of the species found in the geographical area and, as in this case, to major divisions The main species list, List A1, includes all species found within that area. -
Araneae: Salticidae)
Belgian Journal of Entomology 67: 1–27 (2018) ISSN: 2295-0214 www.srbe-kbve.be urn:lsid:zoobank.org:pub:6D151CCF-7DCB-4C97-A220-AC464CD484AB Belgian Journal of Entomology New Species, Combinations, and Records of Jumping Spiders in the Galápagos Islands (Araneae: Salticidae) 1 2 G.B. EDWARDS & L. BAERT 1 Curator Emeritus: Arachnida & Myriapoda, Florida State Collection of Arthropods, FDACS, Division of Plant Industry, P. O. Box 147100, Gainesville, FL 32614-7100 USA (e-mail: [email protected] – corresponding author) 2 O.D. Taxonomy and Phylogeny, Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium (e-mail: [email protected]) Published: Brussels, March 14, 2018 Citation: EDWARDS G.B. & BAERT L., 2018. - New Species, Combinations, and Records of Jumping Spiders in the Galápagos Islands (Araneae: Salticidae). Belgian Journal of Entomology, 67: 1–27. ISSN: 1374-5514 (Print Edition) ISSN: 2295-0214 (Online Edition) The Belgian Journal of Entomology is published by the Royal Belgian Society of Entomology, a non-profit association established on April 9, 1855. Head office: Vautier street 29, B-1000 Brussels. The publications of the Society are partly sponsored by the University Foundation of Belgium. In compliance with Article 8.6 of the ICZN, printed versions of all papers are deposited in the following libraries: - Royal Library of Belgium, Boulevard de l’Empereur 4, B-1000 Brussels. - Library of the Royal Belgian Institute of Natural Sciences, Vautier street 29, B-1000 Brussels. - American Museum of Natural History Library, Central Park West at 79th street, New York, NY 10024-5192, USA. - Central library of the Museum national d’Histoire naturelle, rue Geoffroy Saint- Hilaire 38, F-75005 Paris, France. -
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 ................................................................................................................................................ -
Catalogue of the Jumping Spiders of Northern Asia (Arachnida, Araneae, Salticidae)
INSTITUTE FOR SYSTEMATICS AND ECOLOGY OF ANIMALS, SIBERIAN BRANCH OF THE RUSSIAN ACADEMY OF SCIENCES Catalogue of the jumping spiders of northern Asia (Arachnida, Araneae, Salticidae) by D.V. Logunov & Yu.M. Marusik KMK Scientific Press Ltd. 2000 D. V. Logunov & Y. M. Marusik. Catalogue of the jumping spiders of northern Asia (Arachnida, Araneae, Salticidae). Moscow: KMK Scientific Press Ltd. 2000. 299 pp. In English. Ä. Â. Ëîãóíîâ & Þ. Ì. Ìàðóñèê. Êàòàëîã ïàóêîâ-ñêàêóí÷èêîâ Ñåâåðíîé Àçèè (Arachnida, Araneae, Salticidae). Ìîñêâà: èçäàòåëüñòâî ÊÌÊ. 2000. 299 ñòð. Íà àíãëèéñêîì ÿçûêå. This is the first complete catalogue of the jumping spiders of northern Asia. It is based on both original data and published data dating from 1861 to October 2000. Northern Asia is defined as the territories of Siberia, the Russian Far East, Mongolia, northern provinces of China, and both Korea and Japan (Hokkaido only). The catalogue lists 216 valid species belonging to 41 genera. The following data are supplied for each species: a range character- istic, all available records from northern Asia with approximate coordinates (mapped), all misidentifications and doubtful records (not mapped), habitat preferences, references to available biological data, taxonomic notes on species where necessary, references to lists of regional fauna and to catalogues of general importance. 24 species are excluded from the list of the Northern Asian salticids. 5 species names are newly synonymized: Evarcha pseudolaetabunda Peng & Xie, 1994 with E. mongolica Danilov & Logunov, 1994; He- liophanus mongolicus Schenkel, 1953 with H. baicalensis Kulczyñski, 1895; Neon rostra- tus Seo, 1995 with N. minutus ¯abka, 1985; Salticus potanini Schenkel, 1963 with S.