The Role of UV in Crab Spider Signals: Effects on Perception by Prey and Predators Astrid M
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Crab Spiders Impact Floral-Signal Evolution Indirectly Through Removal
ARTICLE DOI: 10.1038/s41467-018-03792-x OPEN Crab spiders impact floral-signal evolution indirectly through removal of florivores Anina C. Knauer1, Moe Bakhtiari1,2 & Florian P. Schiestl1 The puzzling diversity of flowers is primarily shaped by selection and evolutionary change caused by the plant’s interaction with animals. The contribution of individual animal species to net selection, however, may vary depending on the network of interacting organisms. Here 1234567890():,; we document that in the buckler mustard, Biscutella laevigata, the crab spider Thomisus onustus reduces bee visits to flowers but also benefits plants by feeding on florivores. Uninfested plants experience a trade-off between pollinator and spider attraction as both bees and crab spiders are attracted by the floral volatile β-ocimene. This trade-off is reduced by the induced emission of β-ocimene after florivore infestation, which is stronger in plant populations where crab spiders are present than where they are absent, suggesting that plants are locally adapted to the presence of crab spiders. Our study demonstrates the context-dependence of selection and shows how crab spiders impact on floral evolution. 1 Department of Systematic and Evolutionary Botany, University of Zurich, Zollikerstrasse 107, 8008 Zurich, Switzerland. 2Present address: Institute of Biology, University of Neuchatel, Rue Emile-Argand 11, 2000 Neuchatel, Switzerland. Correspondence and requests for materials should be addressedto F.P.S. (email: fl[email protected]) NATURE COMMUNICATIONS | (2018) 9:1367 | DOI: 10.1038/s41467-018-03792-x | www.nature.com/naturecommunications 1 ARTICLE NATURE COMMUNICATIONS | DOI: 10.1038/s41467-018-03792-x lant–animal interactions are a major driver of plant Crab spiders camouflage themselves on flowers to hunt flower- evolution, including both local adaptation and species visiting insects such as pollinators (Fig. -
Australian Native Bees Avoid Their Spider Predators
by responding to the same floral signals as these honeybees do (Heiling & Herberstein 2004; Heiling et al. 2004). Fur- thermore, it manipulates visual floral signals. While Euro- pean crab spiders appear camouflaged on flowers (Chittka 2001; The´ry & Casas 2002), T. spectabilis produces a Predator–prey coevolution: strong colour contrast in the UV range of the light spec- trum, attracting honeybees (Heiling et al. 2003). This is Australian native bees in line with empirical data showing that bees are attracted to strongly contrasting marks on flowers (Lunau et al. avoid their spider 1996). predators European honeybees did not coevolve with T. spectabilis but were introduced to Australia ca. 200 years ago. By * contrast, native Australian bees that are also captured by A. M. Heiling and M. E. Herberstein T. spectabilis coevolved with this species. We test our pre- Department of Biological Sciences, Macquarie University, North Ryde, diction that native Australian bees evolved anti-predatory NSW 2109, Australia * Author for correspondence ([email protected]). behaviour to avoid their predators, unlike the naive Euro- pean honeybees. Recd 14.10.03; Accptd 10.11.03; Published online 12.01.04 2. MATERIAL AND METHODS Australian crab spiders Thomisus spectabilis Thomisus spectabilis were collected in suburban areas of Brisbane, manipulate visual flower signals to lure introduced Australia. Females reach a body length of ca. 1 cm. Female coloration Apis mellifera. We gave Australian native bees, Aus- varies and we used only white ones in our experiments. Native bees (Austroplebia australis) that were kept in an outdoor hive at the Uni- troplebia australis, the choice between two white versity grounds were transferred into a growth house and trained to daisies, Chrysanthemum frutescens, one of them visit a feeding station (ca. -
Complete Report
The effect of crab spider presence on pollinator behaviour in the field. Sarah van Broekhoven Supervisors: Marcel Dicke Mariella Herberstein Felipe Gawryszewski Table of content Introduction ................................................................................................................................ 3 Materials & Methods.................................................................................................................. 6 Plants and insects ................................................................................................................... 6 Experimental setup................................................................................................................. 7 Statistical analysis .................................................................................................................. 7 Results........................................................................................................................................ 8 Spectral reflectance curves..................................................................................................... 8 Between-patch analyses ....................................................................................................... 10 Within-patch analyses .......................................................................................................... 13 Discussion ................................................................................................................................ 15 Between-patch -
Perception of Ultraviolet Light by Crab Spiders and Its Role in Selection of Hunting Sites
J Comp Physiol A (2009) 195:409–417 DOI 10.1007/s00359-009-0419-6 ORIGINAL PAPER Perception of ultraviolet light by crab spiders and its role in selection of hunting sites Ramachandra M. Bhaskara Æ C. M. Brijesh Æ Saveer Ahmed Æ Renee M. Borges Received: 22 November 2008 / Revised: 19 January 2009 / Accepted: 23 January 2009 / Published online: 24 February 2009 Ó Springer-Verlag 2009 Abstract The perception of ultraviolet (UV) light by spi- 1995; Briscoe and Chittka 2001). Among invertebrates, UV ders has so far been only demonstrated in salticids. Crab sensitivity is an ancient trait and is known in many insects spiders (Thomisidae) hunt mostly on flowers and need to find including honeybees (Briscoe and Chittka 2001; Kevan appropriate hunting sites. Previous studies have shown that et al. 2001). The importance of visual signals or cues, some crab spiders that reflect UV light use UV contrast to especially in the UV range, in either legitimate communi- enhance prey capture. The high UV contrast can be obtained cation or sensory exploitation has been of considerable either by modulation of body colouration or active selection interest in both invertebrates and vertebrates (Endler 1993). of appropriate backgrounds for foraging. We show that crab The role of UV in mate choice has been demonstrated in spiders (Thomisus sp.) hunting on Spathiphyllum plants use taxa as diverse as butterflies (Papke et al. 2007), jumping chromatic contrast, especially UV contrast, to make them- spiders (Lim et al. 2007, 2008), birds (Cuthill et al. 2000; selves attractive to hymenopteran prey. Apart from that, they Hausmann et al. -
2012 "32Nd PAKISTAN CONGRESS of ZOOLOGY (INTERNATIONAL
PROCEEDINGS OF PAKISTAN CONGRESS OF ZOOLOGY (Proc. Pakistan Congr. Zool.) Volume 32 2012 CONTENTS Page Acknowledgements ............................................................................................ i Programme ........................................................................................................ ii Members of the Congress ................................................................................. xi Citations Life Time Achievement Award 2012 Dr. T.J. Roberts .............................................................................................. xix Prof. Dr. Fatima Mujib Bilqees ....................................................................... xxi Zoologist of the Year Award 2012......................................................... xxii Prof. Dr. Mirza Azhar Beg Gold Medal 2012 ....................................... xxiii Gold Medals for M.Sc. and Ph.D. positions 2012 .................................. xxiv Research Articles JAVED, A., MUZAFFAR, N. AND QAZI, J.I. Quality assessment of some branded honey samples marketed in Lahore ............................................... 1 ASLAM, S. AND QAZI, J.I. Profile of metals’ resistant denitrifying bacteria at different depths of tanneries’ effluents effected soil ................ 13 AMIN, N. AND QAZI, J.I. Cultivation of Bacillus subtilis-a4, a fish growth escalating probiotic in sugarcane bagasse ................................................ 25 SOME ABSTRACTS .................................................................................... -
Zoologische Jahrbücher
: . © Biodiversity Heritage Library, http://www.biodiversitylibrary.org/; www.zobodat.at Nachdruck verboten. Ubersetzungsrecht vorbehalten Die Spinnenfauna von Celebes. Beiträge zur Tiergeographie im Indoaustralischen Archipel. Von P. Merian. Mit Tafel 9 und 56 Abbildungen im Text. Inhaltsübersicht. Seite Vorwort 166 Familien der Araneen Uloboridae 176 Pscchridae 181 Sicariidae 181 Zodariidae 183 Hersüiidae 184 Pholcidae 184 Theridiidae 185 Argiopidae 189 Thomisidae 245 Gluhionidae 250 Pisauridae 285 Lycosidae 294 Oxyopidae 299 SaUicidae 302 A. Ergebnisse aus der Bearbeitung der Spinnenfauna von Celebes 328 B. Verzeichnis aller in der Abhandlung erwähnten Gattungen und Arten (Anhang: Gasteracantha) 342 C. Verzeichnis der Fundorte von Celebes . 350 Zool. Jahrb. XXXI. Abt. f. Syst. 12 © Biodiversity Heritage Library, http://www.biodiversitylibrary.org/; www.zobodat.at 166 P- Merian, Vorwort. Die Sammlung-, welche dieser Bearbeitung- zugrunde liegt, ist von den Herren Dr. Paul und Dr. Feitz Sarasin auf ihren denk- würdigen Reisen in Celebes gesammelt und im Herbst 1906 mir zur Untersuchung gütigst überlassen worden. Herrn L. Koch in Nürnberg danke ich für die Zusendung seines Werkes, die Arachniden Australiens. Herr E. F. Scharff sandte mir eine Sammlung des- Nationalmuseums von Dublin, größtenteils unbestimmte Arten von Singapore und Java. Der systematischen Behandlung diente das- System von E. Simon als Basis; Herrn Simon danke ich für die Kontrolle einiger Bestimmungen, besonders aber für seine Hilfe bei der Gattungsbestimmung der Springspinnen. -
Spider Movement, UV Reflectance and Size, but Not Spider Crypsis, Affect the Response of Honeybees to Australian Crab Spiders
Spider Movement, UV Reflectance and Size, but Not Spider Crypsis, Affect the Response of Honeybees to Australian Crab Spiders Ana L. Llandres*, Miguel A. Rodrı´guez-Girone´s Department of Functional and Evolutionary Ecology, Estacio´n Experimental de Zonas A´ ridas (CSIC), Almeria, Spain Abstract According to the crypsis hypothesis, the ability of female crab spiders to change body colour and match the colour of flowers has been selected because flower visitors are less likely to detect spiders that match the colour of the flowers used as hunting platform. However, recent findings suggest that spider crypsis plays a minor role in predator detection and some studies even showed that pollinators can become attracted to flowers harbouring Australian crab spider when the UV contrast between spider and flower increases. Here we studied the response of Apis mellifera honeybees to the presence of white or yellow Thomisus spectabilis Australian crab spiders sitting on Bidens alba inflorescences and also the response of honeybees to crab spiders that we made easily detectable painting blue their forelimbs or abdomen. To account for the visual systems of crab spider’s prey, we measured the reflectance properties of the spiders and inflorescences used for the experiments. We found that honeybees did not respond to the degree of matching between spiders and inflorescences (either chromatic or achromatic contrast): they responded similarly to white and yellow spiders, to control and painted spiders. However spider UV reflection, spider size and spider movement determined honeybee behaviour: the probability that honeybees landed on spider-harbouring inflorescences was greatest when the spiders were large and had high UV reflectance or when spiders were small and reflected little UV, and honeybees were more likely to reject inflorescences if spiders moved as the bee approached the inflorescence. -
Dissertation Jasmin Ruch Hamburg, 2014
EVOLUTION AND MAINTENANCE OF SOCIALITY IN CRAB SPIDERS (THOMISIDAE) Dissertation zur Erlangung des Doktorgrades an der Fakultät für Mathematik, Informatik und Naturwissenschaften im Fachbereich Biologie der Universität Hamburg und der Science Fakultät im Fachbereich Biologie der Macquarie University vorgelegt von Jasmin Ruch aus Buchholz in der Nordheide Hamburg, 2014 EVOLUTION AND MAINTENANCE OF SOCIALITY IN CRAB SPIDERS (THOMISIDAE) Thesis presented for the Doctor of Philosophy/Doctor rerum naturalium to be jointly awarded by Macquarie University and University of Hamburg presented by Dipl. Biol. Jasmin Ruch Hamburg, 2014 Tag der “Oral Defence” an der Universität Hamburg: 08.07.2014 Vorsitzender: Prof. Dr. Andreas Schmidt-Rhaesa Gutachter: Prof. Dr. Jörg Ganzhorn Gutachter: Prof. Dr. Thomas Hoffmeister Dissertationsgutachter: Prof. Rebecca Kilner Dr. Kathrin Dausmann Dr. Mary Whitehouse Prof. Yael Lubin Dissertation freigegeben am 27.11.2014 durch HDR Examination Coordinator Jane Kim (Macquarie University) Table of Contents Summary ......................................................................................................................................... 1 Zusammenfassung.......................................................................................................................... 3 Certificate of originality ................................................................................................................ 5 Acknowledgements..........................................................................................................................9 -
A Preliminary Study on Diversity of Spiders at Amanikere Park in Tumakuru District, Karnataka
International Journal of Science and Research (IJSR) ISSN: 2319-7064 ResearchGate Impact Factor (2018): 0.28 | SJIF (2019): 7.583 A Preliminary Study on Diversity of Spiders at Amanikere Park in Tumakuru District, Karnataka Shraddha Kumari K1, Chaturved Shet R2 1Department of Zoology, Government First Grade College, Tumakuru, India 2Researcher and Co-founder, Harish R Bhat Science Foundation, Yeshwanthpur, Bangalore, India Abstract: Spiders belong to the order Araneae which is the largest order among the class Arachnida. Spiders are considered as indicators of overall species richness and the health of terrestrial communities. The Amanikere Park with different plantations harbors a wide variety of spider fauna. The survey was carried out from August 2019 to January 2020 by using random sampling, gentle tapping, visual observation and photographic methods. During the study, a total number of 50 species belonging to 41 genera of 14 families were documented. In the present study it was found that, the family Araneidae was dominated by having 15 species followed by the family Salticidae having 13 species and the least were from Cheiracanthiidae, Eresidae, Hersiliidae, Philodromidae, Theridiidae and Uloboridae with single species from each family. Keywords: Araneidae, Amanikere Park, Tumakuru, Deccan Plateau, Spiders Diversity 1. Introduction hence the present study is focused on documenting the spider diversity of a green patch in Tumakuru City. Spiders form one of the most ubiquitous groups of predaceous organisms in the animal kingdom (Riechert and 2. Materials and methods Lockley 1984). Among all organisms, spiders (Order: Araneae) form the seventh largest order in terms of number a) Study site of known species (Sebastian and Peter, 2009). -
Evolutionary Dynamics of Mutualism: the Role of Exploitation and Competition
Evolutionary Dynamics of Mutualism: The Role of Exploitation and Competition Item Type text; Electronic Dissertation Authors Jones, Emily Isobel Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 26/09/2021 02:08:20 Link to Item http://hdl.handle.net/10150/193583 EVOLUTIONARY DYNAMICS OF MUTUALISM: THE ROLE OF EXPLOITATION AND COMPETITION by Emily Isobel Jones _____________________ A Dissertation Submitted to the Faculty of the DEPARTMENT OF ECOLOGY AND EVOLUTIONARY BIOLOGY In Partial Fulfillment of the Requirements For the Degree of DOCTOR OF PHILOSOPHY In the Graduate College THE UNIVERSITY OF ARIZONA 2009 2 THE UNIVERSITY OF ARIZONA GRADUATE COLLEGE As members of the Dissertation Committee, we certify that we have read the dissertation prepared by Emily Isobel Jones entitled Evolutionary Dynamics of Mutualism: The Role of Exploitation and Competition and recommend that it be accepted as fulfilling the dissertation requirement for the Degree of Doctor of Philosophy _______________________________________________________________________ Date: 07/17/2009 Judith Bronstein _______________________________________________________________________ Date: 07/17/2009 Régis Ferrière _______________________________________________________________________ Date: 07/17/2009 Anna Dornhaus _______________________________________________________________________ Date: 07/17/2009 John Pepper Final approval and acceptance of this dissertation is contingent upon the candidate’s submission of the final copies of the dissertation to the Graduate College. I hereby certify that I have read this dissertation prepared under my direction and recommend that it be accepted as fulfilling the dissertation requirement. -
Bioecology of the Mango Mealybug, Rastrococcus Iceryoides
BIOECOLOGY OF THE MANGO MEALYBUG, RASTROCOCCUS ICERYOIDES GREEN (HEMIPTERA: PSEUDOCOCCIDAE) AND ITS ASSOCIATED NATURAL ENEMIES IN KENYA AND TANZANIA By TANGA MBI CHRYSANTUS REG. NO: 28671946 UNIVERSITY OF PRETORIA A THESIS SUBMITTED IN FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF THE DEGREE OF DOCTOR OF PHILOSOPHY IN ENTOMOLOGY AT THE UNIVERSITY OF PRETORIA JANUARY 2012 © University of Pretoria DECLARATION This thesis is my original work and has not been presented for a degree in any other University Signature_____________________ Date_______________________ Tanga Mbi Chrysantus DECLARATION BY SUPERVISORS We confirm that the work reported in this thesis was carried out by the candidate under our supervision. Professor Clarke Scholtz Dr Prem Govender Department of Zoology and Entomology Faculty of Health Sciences University of Pretoria University of Limpopo Pretoria Medunsa 0002 Gauteng P.O. Box 163 Signature: ___________________ Signature: _____________________ Date: _______________________ Date: _________________________ Dr Sunday Ekesi Dr Samira Mohammed Plant Health Division, icipe Plant Health Division, icipe P.O. Box: 30772-00100 P.O. Box: 30772-00100 Nairobi, Kenya Nairobi, Kenya Signature : ___________________ Signature : _____________________ Date: _______________________ Date: _________________________ i DEDICATION This thesis is dedicated to my beloved mother, Mrs Tanga Mary Ewoh and to the memory of my late father, Mr Tanga Andrew Apeh (R.I.P) whose love, support and guidance made me what I am today. And to my lovely wife, Mrs Tanga Janice Ghemoh and daughter, Tanga Emely Febeng-Anong who has stood together amidst life’s tough hurdles. While it was difficult to work at a time you were all awake, you have filled my life with purpose and made it so meaningful that each passing day with you around me brings great joy and happiness to my heart. -
Diversity and Distribution of Crab Spiders (Thomisidae: Araneomorphae: Araneae:Arachnida) in India
International Journal of Zoology and Applied Biosciences ISSN: 2455-9571 Volume 6, Issue 3, pp: 132-161, 2021 https://doi.org/10.5281/zenodo.5111580 http://www.ijzab.com Review Article DIVERSITY AND DISTRIBUTION OF CRAB SPIDERS (THOMISIDAE: ARANEOMORPHAE: ARANEAE:ARACHNIDA) IN INDIA Rajendra Singh 1* and Garima Singh2 1 Department of Zoology, Deendayal Upadhyay University of Gorakhpur, U.P., India 2 Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, India Article History: Received 19th May 2021; Accepted 20th June 2021; Published 30th 2021 ABSTRACT The article deals with the faunal diversity of the crab spiders (Thomisidae: Araneomorphae: Araneae: Arachnida) in different states of India and the union territories. A total of 210 species belonging to 44 genera of Thomisidae was recorded in all states and the union territories of India except for Nagaland and Dadra & Nagar Haveli and Daman & Diu, out of which 143 species (68.4%) were strictly endemic. However, among them, 6 species seem to be the case of erroneous report or misidentification. Two genera of crab spiders are highly speciose, e.g. Thomisus Walckenaer, 1805 (53 species) and Xysticus C.L. Koch, 1835 (25 species). A maximum of 74 species of these crab spiders was recorded from Maharashtra followed by 55 species from Madhya Pradesh, 52 species from West Bengal, 40 species from Kerala, 34 species each from Gujarat and Tamil Nadu, 33 species from Karnataka, 32 species from Chhattisgarh and Uttarakhand, 23 species from Meghalaya, 21 species each from Jammu & Kashmir and Uttar Pradesh, 17 species from Assam, 14 species from Rajasthan, 12 species each from Andaman & Nicobar Islands, Goa and Manipur, 11 species from Odisha and less than 10 species were recorded from other states.