Spiders in Bangtaesan Mountain in Gangwon-Do, Korea
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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. -
Powerpoint Bemutató
Mezőfi et al., 2020: Beyond polyphagy and opportunism: natural prey of hunting spiders in the canopy of apple trees. Supplemental figures Arboreal hunting spider assemblage 1.72 2 GLM-g, F1,647 = 235.74, P < 0.001, R = 0.23 exp(-0.82 + 0.526x) 4 Season: Spring Summer 3 Fall 2 1.13 Prey width (mm)Prey thorax 1 0 0 1 2 3 Spider prosoma width (mm) Figure S1: Relationship between spider prosoma and prey thorax widths (jittered, N=649) for the arboreal hunting spider assemblage. On the marginal boxplots red squares indicate the mean values. Spring 16 1 2 3 4 5 6 7 8 9 10 11 13 Prey taxa Spiders N=325 C.xanth O.salt Ph.cesp E.tri Xys Club Prey Natural economic enemy Neutral Pest Figure S2: Spring aspect (N=325); throphic interactions between the most abundant hunting spider groups and the arthropod community in the canopy of apple trees in spring. The middle bars represent spider groups and upper and bottom bars represent the spiders’ prey divided taxonomically and according their economic status. The width of the links between the trophic levels depict the frequency of interactions and bar widths indicate the relative abundance of each category. Numbers refer to following prey taxa: 1 Acari, 2 Araneae, 3 Coleoptera, 4 Lepidoptera, 5 Formicidae, 6 Other Hymenoptera, 7 Brachycera, 8 Nematocera, 9 Auchenorrhyncha, 10 Heteroptera, 11 Sternorrhyncha, 13 Neuroptera, 16 Trichoptera; Spiders: C.xanth = Carrhotus xanthogramma, O.salt = Other salticids, Ph.cesp = Philodromus cespitum, E.tri = Ebrechtella tricuspidata, Xys = Xysticus spp., Club = Clubiona spp. -
Lathys Stigmatisata (Menge, 1869), Ballus Rufipes (Simon, 1868), Synageles Hilarulus (C.L
Lathys stigmatisata (Menge, 1869), Ballus rufipes (Simon, 1868), Synageles hilarulus (C.L. Koch, 1846), Phrurolithus nigrinus (Simon, 1878) and Phycosoma inornatum (O. Pickard-Cambridge, 1861): five spiders new to the fauna of Luxembourg (Araneae: Theridiidae, Dyctiniidae, Phrurolithidae, Salticidae) with records of other rare species Raoul Gerend 35, rue de Hellange L-3487 Dudelange, Luxembourg ([email protected]) Gerend, R., 2020. Lathys stigmatisata (Menge, 1869), Ballus rufipes(Simon, 1868), Synageles hilarulus (C.L. Koch, 1846), Phrurolithus nigrinus (Simon, 1878) and Phycosoma inornatum (O. Pickard-Cambridge, 1861): five spiders new to the fauna of Luxembourg (Araneae: Theridiidae, Dyctiniidae, Phrurolithidae, Salticidae) with records of other rare species. Bul- letin de la Société des naturalistes luxembourgeois 122 : 211-215. Published online 26 August 2020 (ISSN 2716-750X). Abstract. Five spider species are recorded for the first time from Luxembourg. Their habi- tats are described. New data are presented for another three species. The importance of the former open-cast iron ore quarries of southwestern Luxembourg for thermophilous spiders is emphasised. 1. Introduction 2. Material and methods The first catalogue of the spider fauna of Lux- Spiders were collected using a range of con- embourg published in 2019 (Kreuels et al.) ventional methods which shall be specified lists 495 species while the authors estimate in the respective species’ paragraph. The that roughly 600 to 700 species should rea- spiders were then preserved in 70% isopro- sonably be expected to occur in the Grand- panol or 70% ethanol. All the material is Duchy. They consider Luxembourg’s spider kept in the author’s collection. Identifica- fauna to be rather under-recorded, due to a tions are based on Roberts (1996), Bee et lack of systematic collecting throughout the al. -
Spiders of the Hawaiian Islands: Catalog and Bibliography1
Pacific Insects 6 (4) : 665-687 December 30, 1964 SPIDERS OF THE HAWAIIAN ISLANDS: CATALOG AND BIBLIOGRAPHY1 By Theodore W. Suman BISHOP MUSEUM, HONOLULU, HAWAII Abstract: This paper contains a systematic list of species, and the literature references, of the spiders occurring in the Hawaiian Islands. The species total 149 of which 17 are record ed here for the first time. This paper lists the records and literature of the spiders in the Hawaiian Islands. The islands included are Kure, Midway, Laysan, French Frigate Shoal, Kauai, Oahu, Molokai, Lanai, Maui and Hawaii. The only major work dealing with the spiders in the Hawaiian Is. was published 60 years ago in " Fauna Hawaiiensis " by Simon (1900 & 1904). All of the endemic spiders known today, except Pseudanapis aloha Forster, are described in that work which also in cludes a listing of several introduced species. The spider collection available to Simon re presented only a small part of the entire Hawaiian fauna. In all probability, the endemic species are only partly known. Since the appearance of Simon's work, there have been many new records and lists of introduced spiders. The known Hawaiian spider fauna now totals 149 species and 4 subspecies belonging to 21 families and 66 genera. Of this total, 82 species (5596) are believed to be endemic and belong to 10 families and 27 genera including 7 endemic genera. The introduced spe cies total 65 (44^). Two unidentified species placed in indigenous genera comprise the remaining \%. Seventeen species are recorded here for the first time. In the catalog section of this paper, families, genera and species are listed alphabetical ly for convenience. -
Higher-Level Phylogenetics of Linyphiid Spiders (Araneae, Linyphiidae) Based on Morphological and Molecular Evidence
Cladistics Cladistics 25 (2009) 231–262 10.1111/j.1096-0031.2009.00249.x Higher-level phylogenetics of linyphiid spiders (Araneae, Linyphiidae) based on morphological and molecular evidence Miquel A. Arnedoa,*, Gustavo Hormigab and Nikolaj Scharff c aDepartament Biologia Animal, Universitat de Barcelona, Av. Diagonal 645, E-8028 Barcelona, Spain; bDepartment of Biological Sciences, The George Washington University, Washington, DC 20052, USA; cDepartment of Entomology, Natural History Museum of Denmark, Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark Accepted 19 November 2008 Abstract This study infers the higher-level cladistic relationships of linyphiid spiders from five genes (mitochondrial CO1, 16S; nuclear 28S, 18S, histone H3) and morphological data. In total, the character matrix includes 47 taxa: 35 linyphiids representing the currently used subfamilies of Linyphiidae (Stemonyphantinae, Mynogleninae, Erigoninae, and Linyphiinae (Micronetini plus Linyphiini)) and 12 outgroup species representing nine araneoid families (Pimoidae, Theridiidae, Nesticidae, Synotaxidae, Cyatholipidae, Mysmenidae, Theridiosomatidae, Tetragnathidae, and Araneidae). The morphological characters include those used in recent studies of linyphiid phylogenetics, covering both genitalic and somatic morphology. Different sequence alignments and analytical methods produce different cladistic hypotheses. Lack of congruence among different analyses is, in part, due to the shifting placement of Labulla, Pityohyphantes, -
A Rapid Protocol for Generating Arthropod DNA Barcodes Suitable for Use with Undergraduate Students
Supplementary material for: A Rapid Protocol for Generating Arthropod DNA Barcodes Suitable for Use with Undergraduate Students Authors: Grant R. Browna*, Claire Dagena, Ben Reilly O'Donnella, Jefferson A. Gravesa Corresponding Author: Grant R. Brown [email protected] aUniversity of St Andrews, St Andrews, Fife, UK. KY16 9TH Contents: Student Protocol - DNA Barcoding of spiders Technician's Notes List of DNA barcodes generated during the session (2016) 1 | 25 DNA Barcoding of spiders Dr Grant R. Brown Background and aims of the practical DNA barcodes are short sequences of DNA that be used to assign an organism to a particular species. In animals, a 658bp long section of the mitochondrial CO1 (cytochrome oxidase subunit I) region is most often used for barcoding purposes. Mitochondrial DNA is useful for barcoding as it is very abundant in all eukaryotic cells, and has the property that it evolves rapidly, yet without extensive variation. Hence, these sequences are likely to be identical between all members of the same species, yet will be distinct from members of other species. The purpose of this practical is to produce novel barcodes for spiders in the family Linyphiidae. 'Linyphiids' are small sheet-weaving spiders often known as "money spiders" in the UK. These spiders are common in almost every terrestrial habitat, and can be found throughout the year. In common with most arthropods they have been generally neglected in research and only a small proportion of the European fauna has been barcoded (around 30%). You will therefore have the opportunity to contribute data new to science during this practical, by generating morphological and DNA vouchers for an important yet understudied group of animals. -
Araneae: Salticidae) from India
Acta Arachnologica, 67(1): 7–12, August 31, 2018 A new generic record and two new species of jumping spiders (Araneae: Salticidae) from India John T. D. Caleb, Sumantika Chatterjee, Kaomud Tyagi, Shantanu Kundu & Vikas Kumar* Centre for DNA Taxonomy, Zoological Survey of India, Prani Vigyan Bhawan, M-Block, New Alipore, Kolkata-700 053, West Bengal, India *Corresponding author. E-mail: [email protected] Abstract ― Two new species of jumping spiders, Colyttus proszynskii sp. nov. (♂) and Synagelides brahma- putra sp. nov. (♀), are described from India. The genus Colyttus Thorell 1891 is recorded for the first time in India. Key words ― Colyttus, Synagelides, Assam, diagnosis, description, taxonomy plug, MS = median septum, PER = posterior eye row, PLE Introduction = posterior lateral eye, PME = posterior median eye, PTL = The Salticidae are the most speciose spider family con- proximal tegular lobe, RTA = retrolateral tibial apophysis, S sisting of 6010 species in 634 genera under 7 subfamilies = spermatheca, SD = sperm duct. (World Spider Catalog 2017; Maddison 2015). Presently, Taxonomy there are 235 described species under 77 genera known from India (World Spider Catalog 2017). While examining speci- Colyttus proszynskii sp. nov. mens collected during a recent field survey in Assam state of (Figs. 1–11) India, two undescribed species were recognized. The genus Colyttus Thorell 1891 is represented by 6 Type material. Male holotype (ZSI-CDT-AA1057): Deh- species from the Oriental region and the genus Synagelides ing Patkai Wildlife Sanctuary, (27.2481° N, 95.4205° E, 138 Strand, in Bösenberg & Strand 1906 is represented by 38 m) Assam, India, 05 April 2017, leg. S. Kundu. -
A Protocol for Online Documentation of Spider Biodiversity Inventories Applied to a Mexican Tropical Wet Forest (Araneae, Araneomorphae)
Zootaxa 4722 (3): 241–269 ISSN 1175-5326 (print edition) https://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2020 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4722.3.2 http://zoobank.org/urn:lsid:zoobank.org:pub:6AC6E70B-6E6A-4D46-9C8A-2260B929E471 A protocol for online documentation of spider biodiversity inventories applied to a Mexican tropical wet forest (Araneae, Araneomorphae) FERNANDO ÁLVAREZ-PADILLA1, 2, M. ANTONIO GALÁN-SÁNCHEZ1 & F. JAVIER SALGUEIRO- SEPÚLVEDA1 1Laboratorio de Aracnología, Facultad de Ciencias, Departamento de Biología Comparada, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Colonia Copilco el Bajo. C. P. 04510. Del. Coyoacán, Ciudad de México, México. E-mail: [email protected] 2Corresponding author Abstract Spider community inventories have relatively well-established standardized collecting protocols. Such protocols set rules for the orderly acquisition of samples to estimate community parameters and to establish comparisons between areas. These methods have been tested worldwide, providing useful data for inventory planning and optimal sampling allocation efforts. The taxonomic counterpart of biodiversity inventories has received considerably less attention. Species lists and their relative abundances are the only link between the community parameters resulting from a biotic inventory and the biology of the species that live there. However, this connection is lost or speculative at best for species only partially identified (e. g., to genus but not to species). This link is particularly important for diverse tropical regions were many taxa are undescribed or little known such as spiders. One approach to this problem has been the development of biodiversity inventory websites that document the morphology of the species with digital images organized as standard views. -
A Summary List of Fossil Spiders
A summary list of fossil spiders compiled by Jason A. Dunlop (Berlin), David Penney (Manchester) & Denise Jekel (Berlin) Suggested citation: Dunlop, J. A., Penney, D. & Jekel, D. 2010. A summary list of fossil spiders. In Platnick, N. I. (ed.) The world spider catalog, version 10.5. American Museum of Natural History, online at http://research.amnh.org/entomology/spiders/catalog/index.html Last udated: 10.12.2009 INTRODUCTION Fossil spiders have not been fully cataloged since Bonnet’s Bibliographia Araneorum and are not included in the current Catalog. Since Bonnet’s time there has been considerable progress in our understanding of the spider fossil record and numerous new taxa have been described. As part of a larger project to catalog the diversity of fossil arachnids and their relatives, our aim here is to offer a summary list of the known fossil spiders in their current systematic position; as a first step towards the eventual goal of combining fossil and Recent data within a single arachnological resource. To integrate our data as smoothly as possible with standards used for living spiders, our list follows the names and sequence of families adopted in the Catalog. For this reason some of the family groupings proposed in Wunderlich’s (2004, 2008) monographs of amber and copal spiders are not reflected here, and we encourage the reader to consult these studies for details and alternative opinions. Extinct families have been inserted in the position which we hope best reflects their probable affinities. Genus and species names were compiled from established lists and cross-referenced against the primary literature. -
Life-History Constraints in Inaccurate Batesian Myrmecomorphic Spiders (Araneae: Corinnidae, Gnaphosidae)
Eur. J. Entomol. 108: 255–260, 2011 http://www.eje.cz/scripts/viewabstract.php?abstract=1614 ISSN 1210-5759 (print), 1802-8829 (online) Life-history constraints in inaccurate Batesian myrmecomorphic spiders (Araneae: Corinnidae, Gnaphosidae) STANO PEKÁR and MARTIN JARAB Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlá Ĝská 2, 611 37 Brno, Czech Republic; e-mail: [email protected] Key words. Formicidae, prey, trophic niche, clutch size, copulation, courtship Abstract. Accurate Batesian mimicry is known to impose constraints on some traits of the mimic, such as foraging or reproductive behaviour. It is not known whether life-history traits of inaccurate Batesian mimics are constrained as well. We studied selected life- history traits of three spider species, Liophrurillus flavitarsis, Phrurolithus festivus (both Corinnidae), and Micaria sociabilis (Gna- phosidae), that are inaccurate mimics of ants. Namely, we were interested in how myrmecomorphy (ant-like resemblance) constrains their circadian activity, trophic niche and reproductive behaviour. The spiders were found to have diurnal activity like their models, whereas their close relatives have nocturnal activity. The three mimics do not catch ants, nor do they use food resources of ants, but catch various tiny invertebrates that occur in the vicinity of their models. Their trophic niche seems to be constrained by occurrence among ants. Absence of courtship and long lasting copulation, in a position that does not provide protective resemblance, do not seem to be constrained by mimicry in the three species. Comparative analysis of fecundity in mimetic and non-mimetic spiders showed that clutch size is also not constrained. Unlike in accurate mimics, life-history traits of inaccurate myrmecomorphs appear not to be constrained. -
High-Lipid Prey Reduce Juvenile Survivorship and Delay Egg Laying
© 2020. Published by The Company of Biologists Ltd | Journal of Experimental Biology (2020) 223, jeb237255. doi:10.1242/jeb.237255 RESEARCH ARTICLE High-lipid prey reduce juvenile survivorship and delay egg laying in a small linyphiid spider Hylyphantes graminicola Lelei Wen1,*, Xiaoguo Jiao1,*, Fengxiang Liu1, Shichang Zhang1,‡ and Daiqin Li2,‡ ABSTRACT in nature (Barry and Wilder, 2013; Fagan et al., 2002; Reifer et al., Prey proteins and lipids greatly impact predator life-history traits. 2018; Salomon et al., 2011; Toft et al., 2019; Wiggins and Wilder, However, life-history plasticity offers predators the opportunity to tune 2018). However, predators, like other organisms, exhibit life-history the life-history traits in response to the limited macronutrients to plasticity, the capacity to facultatively alter life-history traits in allocate among traits. A fast-growing predator species with a strict response to a limited pool of macronutrients to allocate among traits maturation time may be more likely to consume nutritionally (Simpson and Raubenheimer, 2012). This nutrient-mediated life- imbalanced prey. Here, we tested this hypothesis by examining the history trade-off assumes that the different life-history traits cannot effect of the protein-to-lipid ratio in prey on a small sheet web-building be maximized at the same macronutrient intake as each trait needs a spider, Hylyphantes graminicola, with a short life span, using specific balance of macronutrients for its maximal performance adult Drosophila melanogaster as the prey. By manipulating the (Morimoto and Lihoreau, 2019; Rapkin et al., 2018). macronutrient content of the prey to generate three prey types with Spiders are among the most diverse and abundant carnivorous different protein-to-lipid ratios (i.e. -
Eusparassus Dufouri En Andere Jachtkrabspinnen (Araneae: Sparassidae) Getransporteerd Naar Nederland
58 entomologische berichten 77 (2) 2017 Eusparassus dufouri en andere jachtkrabspinnen (Araneae: Sparassidae) getransporteerd naar Nederland Jinze Noordijk Marc de Winkel TREFWOORDEN Adventieven, exoten, Micrommata ligurina, Middellandse Zeegebied, Olios argelasius Entomologische Berichten 77 (2): 58-61 De spinnenfamilie Sparassidae heeft in Nederland slechts één inheemse vertegenwoordiger. Daarnaast zijn er enkele adventieve soorten gemeld. In deze bijdrage voeren wij nieuwe geïmporteerde soorten op. Eusparassus dufouri is een grote, fraaie spin, afkomstig uit het mediterrane gebied. Het is een nachtactieve soort die door snel te rennen prooien overrompelt. In zowel 2014 als 2016 is een individu in Nederland gevonden en bij de auteurs van dit artikel terecht gekomen. Importen van Micrommata ligurina en Olios argelasius, die beide ook van oorsprong uit het Middellandse Zeegebied komen en eerder al op internet gemeld waren, worden hier ook kort behandeld. Jachtkrabspinnen Vondsten van Eusparassus dufouri Jachtkrabspinnen, Sparassidae, vormen een familie met bijna In zowel 2014 als 2016 zijn exemplaren van Eusparassus dufouri duizend soorten die met name in de tropen en subtropen voor- in ons land gevonden. Het eerste dier liep rond in een huis; hoe komen, onder andere veel in woestijn- en rotsachtige biotopen hij daar is gekomen kon niet achterhaald worden. Het tweede (Jocqué & Dippenaar-Schoeman 2006, Murphy & Roberts 2015). exemplaar werd levend gevonden in een camper; de eigena- Alleen het genus Micrommata komt ook in gematigde streken ren ervan waren er vier maanden ervoor mee in Zuid-Spanje voor: het Palearctische gebied. geweest. In Nederland kennen we één inheemse jachtkrabspin: Materiaal 1 volwassen / (figuur 1), 12.xii.2014, Arnhem-Zuid Micrommata virescens (Clerck), een soort die op lage planten in (Gelderland, AC 186-441), levend in huis, leg.