DOCSLIB.ORG

Durham E-Theses

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Durham E-Theses Durham E-Theses An investigation into the ground-living spider communities of Hamsterley forest Bentley, Christopher How to cite: Bentley, Christopher (1997) An investigation into the ground-living spider communities of Hamsterley forest, Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/4802/ Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in Durham E-Theses • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full Durham E-Theses policy for further details. Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk 2 An Investigation into the Ground-living Spider Communities of Hamsterley Forest. The copyright of this thesis rests with the author. No quotation from it should be published without the written consent of the author and information derived from it should be acknowledged. by Christopher Bentley A Thesis submitted in fulfilment of the requirements for the degree of Master of Science (Ecology) Department of Biological Sciences The University of Durham 1997 " 5 nAR 1938 An Investigation into the Ground-living Spider Communities of Hamsteriey Forest. Christopiier Bentley MSc (Ecology), 1997 A study was made of the ground-living spider communities of a commercial forest, using sites at various stages of the management cycle to represent different stages of succession. Clear-felling resulted in an increase in the abundance of large polyphagous cursorial hunters associated with open habitats, and a corresponding reduction in the numbers of small web-building litter species, with a more limited prey range, which characterised the later stages of succession. The most important factor in this change appeared to be the removal of the canopy, resulting in a modification of microclimatic conditions, and degradation of the litter layer. In the first nine years after clear-felling, there were clear and relatively rapid changes in community structure associated with successional age. The observed changes were considered to be mainly due to the increasing vegetation density in this period, which provided both panicular structures and a more favourable microclimate for certain species. Associated changes were also found in species richness, abundance, diversity and eveness, which increased during this period. These attributes decreased into late succession, though the pattern was less clear for species abundance, and the oldest sites were less species rich, diverse and even than those of eariy succession. In late succession, the rate of community change slowed, the most mature sites being very similar in terms of their communities. In general, the differences that did exist were not related to the position of the site on the successional gradient. It was considered that these differences were not due to a single factor, but rather reflected the importance of different factors at each site. CONTENTS Acknowledgements 1. INTRODUCTION 1 2. STUDY AREAS 5 2.1. Hamsterley Forest 5 2.1.1. Study Sites 6 2.2. Wilton Moor 12 2.2.1. Study Site 13 3. METHODS 17 3.1. Pitfall Trapping 17 3.2. Vegetation Density 18 3.3. Data Analysis 19 3.3.1. Ordination 19 3.3.2. Classification 21 3.3.3. Guild Distribution 22 3.3.4. Diversity and Species Abundance 22 3.3.4.1. Diversity Indices 22 3.3.4.2. Species Abundance Models' 26 3.3.5. Border Transition Categories 29 4. RESULTS 32 4.1. Ordination 32 4.1.1. Ordination of Hamsterley sites based on their spider 32 assemblages II 4.1.2. Ordination of Hamsterley species based on their 34 relative abundance at the sampled sites 4.1.3. Derivation of ordination axes 38 4.2. Classification 40 4.2.1. Grouping of Hamsterley sites based on their spider 40 assemblages 4.2.2. Distribution of Common species across Hamsterley 43 sites 4.2.3 The relationship between the classification of 53 Hamsterley sites and their position on the succcssional gradient 4.3. Distribution of the six major spider guilds across 54 Hamsterley sites 4.4. Diversity and species abundance 65 4.4.1. Diversity indices 65 4.4.1.1 Ranking of sites 65 4.4.1.2 Correlation between indices 68 4.4.1.3. The use of pitfall trap data in relation to the 70 calculation of diversity indices 4.4.1.4. The performance of individual diversity indices 71 with the Hamsterley data 4.4.2. Species abundance models 73 4.4.2.1. Log abundance on rank plots 73 Ill 4.4.2.2. Performance of individual species abundance 77 models with the Hamsteriey data 4.4.2.3. The suitability of goodness-of-fit tests for assessing 79 the fit of species abundance models 4.4.2.4. The relative merits of the four species abundance 79 models in relation to their performance with the Hamsteriey data 4.4.3. Changes in diversity and species abundance in 84 relation to successional age 4.5. Border transition categories 85 4.5.1. Distribution of species richness, diversity and number 85 of individuals across the habitat boundary at Wilton Moor 4.5.2. Distribution of individual species 89 4.5.3. Distribution of major guilds 102 4.5.4. A discussion of the results of the Wilton Moor study 103 5. DISCUSSION 111 5.1. The use of pitfall traps in community studies 111 5.2. Changes in spider communities during succession 112 5.3. Rate of change of spider communities during 123 succession 5.4. Changes in the attributes of spider life cycles 125 with succession 6. REFERENCES 136 IV APPENDIX 152 V LIST OF TABLES Table 1. Characteristics of the 11 Hamsterley Forest sites 8 sampled during 1992. Table 2. Summary information for the six major spider guilds 23 defined at Hamsterley Forest. Table 3. Distribution of species trapped in numbers exceeding 44 19 individuals across Hamsterley sites, based on TWINSPAN output. Table 4. Means (± SE) at each TWINSPAN Endgroup 47 for each of the 36 species trapped in numbers exceeding 19 individuals, based on Table 3. Table 5. Percentage contribution of each major guild to the 58 catch at each site, showing TWINSPAN Endgroups. Table 6. Contribution of each guild to the total number of 59 species at each site, showing TWINSPAN Endgroups. Table 7. Mean numbers of species (± SE) for the major 60 guilds at each TWINSPAN Endgroup. Table 8. Species richne.ss and abundance data for each of the 11 66 Hamsterley sites, with the values of the four diversity indices calculated. Table 9. Probabilities and direction of correlation obtained from 69 comparisons between species richness, abundance and four diversity indices using Spearman's Rank Correlation Coefficient. VI Table 10. Chi-square values, degrees-of-freedom and probabilities 78 for the fit of four species abundance models to the species abundance data at each site. Table 11. Mean number of individuals, species richness and 88 species diversity per trap for each row position at Wilton Moor with results of ANOVA. Table 12. Mean number of individuals per trap (± SE) from 95 grassland and plantation for the 25 spider species trapped in numbers exceeding 19 individuals at Wilton Moor and showing the results of significance testing using student's t-test. Table 13. Mean number of individuals per trap (± SE) at each row 97 for each of the nine species trapped in significantly greater numbers in the grassland at Wilton Moor, with results of ANOVA analysis. Table 14. Mean number of individuals per trap (± SE) at each row 98 for each of the seven species trapped in significantly greater numbers in the plantation at Wilton Moor, with results of ANOVA analysis. Table 15. Mean number of individuals per trap (± SE) for each 99 of the nine species which showed no significant difference in mean catch between grassland and plantation at Wilton Moor, with results of ANOVA analysis. VII Table 16. Representation of the results of the Tukey multiple 101 comparison tests on the species in Table 12 which gave significant F values in the initial ANOVA. Table 17. Mean number of individuals per trap (± SE) from 104 grassland and plantation for each of the six major spider guilds identified at Wilton Moor, and showing results of significance testing using student's t-test. Table 18. Mean number of individuals per trap (± SE) at each 105 row for each of the six major guilds at Wilton Moor, and with results of ANOVA analysis. VIII LIST OF FIGURES Fig. 1. Map of Hamsteriey Forest showing position of study 7 sites. Fig. 2. Map of Wilton Moor showing study area. 14 Fig. 3. Diagram showing arrangement of pitfall-traps at Wilton 16 Moor. Fig. 4. Diagram showing the six types of border transition 30 category proposed by Duelli et al., (1990), and based on the same. Fig. 5. CANOCO ordination diagram (Axis 1 by Axis 2) of 33 Hamsteriey sites based on the distribution of those species with numbers greater than five individuals and showing major habitat groups. Fig. 6. CANOCO ordination diagram (Axis 1 by Axis 2) of 35 Harasterley species on those occurring in numbers greater than five individuals and showing those with numbers greater than 19. Fig. 7. Dendrogram derived from TWINSPAN analysis of 41 Hamsteriey spider data for those species present in numbers exceeding five individuals and showing indicator species for each division.
Load more

Recommended publications
  • Surface-Active Spiders (Araneae) in Ley and Field Margins
    Norw. J. Entomol. 51, 57–66. 2004 Surface-active spiders (Araneae) in ley and field margins Reidun Pommeresche Pommeresche, R. 2004. Surface-active spiders (Araneae) in ley and field margins. Norw. J. Entomol. 51, 57-66. Surface-active spiders were sampled from a ley and two adjacent field margins on a dairy farm in western Norway, using pitfall traps from April to June 2001. Altogether, 1153 specimens, represent- ing 33 species, were found. In total, 10 species were found in the ley, 16 species in the edge of the ley, 22 species in the field margin “ley/forest” and 16 species in the field margin “ley/stream”. Erigone atra, Bathyphantes gracilis, Savignia frontata and Collinsia inerrans were the most abun- dant species in the ley. C. inerrans was not found in the field margins. This species is previously recorded only a few times in Norway. Diplocephalus latifrons, Tapinocyba insecta, Dicymbium tibiale, Bathyphantes nigrinus and Diplostyla concolor were most abundant in the field margin “ley/ forest”. D. latifrons, D. tibiale and Pardosa amentata were most abundant in the field margin “ley/ stream”, followed by E. atra and B. gracilis. The present results were compared to results from ley and pasture on another farm in the region, recorded in 2000. A Detrended Correspondence Analyses (DCA) of the data sets showed that the spider fauna from the leys were more similar, independent of location, than the fauna in ley and field margins on the same locality. The interactions between cultivated fields and field margins according to spider species composition, dominance pattern and habitat preferences are discussed.
    [Show full text]
  • 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.
    [Show full text]
  • Araneae: Sparassidae)
    EUROPEAN ARACHNOLOGY 2003 (LOGUNOV D.V. & PENNEY D. eds.), pp. 107125. © ARTHROPODA SELECTA (Special Issue No.1, 2004). ISSN 0136-006X (Proceedings of the 21st European Colloquium of Arachnology, St.-Petersburg, 49 August 2003) A study of the character palpal claw in the spider subfamily Heteropodinae (Araneae: Sparassidae) Èçó÷åíèå ïðèçíàêà êîãîòü ïàëüïû ó ïàóêîâ ïîäñåìåéñòâà Heteropodinae (Araneae: Sparassidae) P. J ÄGER Forschungsinstitut Senckenberg, Senckenberganlage 25, D60325 Frankfurt am Main, Germany. email: [email protected] ABSTRACT. The palpal claw is evaluated as a taxonomic character for 42 species of the spider family Sparassidae and investigated in 48 other spider families for comparative purposes. A pectinate claw appears to be synapomorphic for all Araneae. Elongated teeth and the egg-sac carrying behaviour of the Heteropodinae seem to represent a synapomorphy for this subfamily, thus results of former systematic analyses are supported. One of the Heteropodinae genera, Sinopoda, displays variable character states. According to ontogenetic patterns, shorter palpal claw teeth and the absence of egg-sac carrying behaviour may be secondarily reduced within this genus. Based on the idea of evolutionary efficiency, a functional correlation between the morphological character (elongated palpal claw teeth) and egg-sac carrying behaviour is hypothesized. The palpal claw with its sub-characters is considered to be of high analytical systematic significance, but may also give important hints for taxonomy and phylogenetics. Results from a zoogeographical approach suggest that the sister-groups of Heteropodinae lineages are to be found in Madagascar and east Africa and that Heteropodinae, as defined in the present sense, represents a polyphyletic group.
    [Show full text]
  • Tarset and Greystead Biological Records
    Tarset and Greystead Biological Records published by the Tarset Archive Group 2015 Foreword Tarset Archive Group is delighted to be able to present this consolidation of biological records held, for easy reference by anyone interested in our part of Northumberland. It is a parallel publication to the Archaeological and Historical Sites Atlas we first published in 2006, and the more recent Gazeteer which both augments the Atlas and catalogues each site in greater detail. Both sets of data are also being mapped onto GIS. We would like to thank everyone who has helped with and supported this project - in particular Neville Geddes, Planning and Environment manager, North England Forestry Commission, for his invaluable advice and generous guidance with the GIS mapping, as well as for giving us information about the archaeological sites in the forested areas for our Atlas revisions; Northumberland National Park and Tarset 2050 CIC for their all-important funding support, and of course Bill Burlton, who after years of sharing his expertise on our wildflower and tree projects and validating our work, agreed to take this commission and pull everything together, obtaining the use of ERIC’s data from which to select the records relevant to Tarset and Greystead. Even as we write we are aware that new records are being collected and sites confirmed, and that it is in the nature of these publications that they are out of date by the time you read them. But there is also value in taking snapshots of what is known at a particular point in time, without which we have no way of measuring change or recognising the hugely rich biodiversity of where we are fortunate enough to live.
    [Show full text]
  • Ekologie Pavouků a Sekáčů Na Specifických Biotopech V Lesích
    UNIVERZITA PALACKÉHO V OLOMOUCI Přírodovědecká fakulta Katedra ekologie a životního prostředí Ekologie pavouků a sekáčů na specifických biotopech v lesích Ondřej Machač DOKTORSKÁ DISERTAČNÍ PRÁCE Školitel: doc. RNDr. Mgr. Ivan Hadrián Tuf, Ph.D. Olomouc 2021 Prohlašuji, že jsem doktorskou práci sepsal sám s využitím mých vlastních či spoluautorských výsledků. ………………………………… © Ondřej Machač, 2021 Machač O. (2021): Ekologie pavouků a sekáčů na specifických biotopech v lesích s[doktorská di ertační práce]. Univerzita Palackého, Přírodovědecká fakulta, Katedra ekologie a životního prostředí, Olomouc, 35 s., v češtině. ABSTRAKT Pavoukovci jsou ekologicky velmi různorodou skupinou, obývají téměř všechny biotopy a často jsou specializovaní na specifický biotop nebo dokonce mikrobiotop. Mezi specifické biotopy patří také kmeny a dutiny stromů, ptačí budky a biotopy ovlivněné hnízděním kormoránů. Ve své dizertační práci jsem se zabýval ekologií společenstev pavouků a sekáčů na těchto specifických biotopech. V první studii jsme se zabývali společenstvy pavouků a sekáčů na kmenech stromů na dvou odlišných biotopech, v lužním lese a v městské zeleni. Zabývali jsme se také jednotlivými společenstvy na kmenech různých druhů stromů a srovnáním tří jednoduchých sběrných metod – upravené padací pasti, lepového a kartonového pásu. Ve druhé studii jsme se zabývali arachnofaunou dutin starých dubů za pomocí dvou sběrných metod (padací past v dutině a nárazová past u otvoru dutiny) na stromech v lužním lese a solitérních stromech na loukách a také srovnáním společenstev v dutinách na živých a odumřelých stromech. Ve třetí studii jsme se zabývali společenstvem pavouků zimujících v ptačích budkách v nížinném lužním lese a vlivem vybraných faktorů prostředí na jejich početnosti. Zabývali jsme se také znovuosídlováním ptačích budek pavouky v průběhu zimy v závislosti na teplotě a vlivem hnízdního materiálu v budce na početnosti a druhové spektrum pavouků.
    [Show full text]
  • Influence of Stand-Alone Trees on Epigeic Spiders (Araneae) at the Alpine Timberline
    Ann. Zool. Fennici 44: 43–57 ISSN 0003-455X Helsinki 15 March 2007 © Finnish Zoological and Botanical Publishing Board 2007 Influence of stand-alone trees on epigeic spiders (Araneae) at the alpine timberline Holger Frick1,2, Wolfgang Nentwig1 & Christian Kropf2 1) Zoological Institute, University of Bern, Baltzerstrasse 6, CH-3012 Bern, Switzerland (e-mails: [email protected], [email protected]) 2) Natural History Museum Bern, Department of Invertebrates, Bernastrasse 15, CH-3005 Bern, Switzerland (e-mail: [email protected]) Received 15 Apr. 2006, revised version received 5 Aug. 2006, accepted 9 June 2006 Frick, H., Nentwig, W. & Kropf, C. 2007: Influence of stand-alone trees on epigeic spiders (Ara- neae) at the alpine timberline. — Ann. Zool. Fennici 44: 43–57. We studied community composition and activity densities of spiders around stand- alone Norway spruce at the alpine timberline with respect to three interrelated param- eters: (1) relative distance from tree trunk, (2) branch-, and (3) vegetation cover. Pitfall traps were positioned in an inner distance range (close to tree trunk), a median, and an outer distance range (at the outer limit of branch cover). Community composition: Linyphiid species numbers increased significantly towards the tree trunks where the branch cover was high, whereas lycosid and gnaphosid species numbers increased towards the edge where branch cover was low. Activity densities: 11 out of 14 species were significantly correlated with the relative distance to the tree trunk, ten with the branch cover, and two with vegetation cover. Open-land species preferred the outer distance range and forest species the inner distance range.
    [Show full text]
  • Spider Community and Species Trends at the UK Environmental Change Network Cairngorm Field Station, 2007-2019
    Temporal trends in spider communities at the UK Environmental Change Network Cairngorm field station, 2007-2019 Data Analysis Report Chris Andrews, Rowley Snazell, Jan Dick Date 28/04/2020 Spider community and species trends at the UK Environmental Change Network Cairngorm field station, 2007-2019 Title Spider community and species trends at the UK Environmental Change Network Cairngorm field station, 2007-2019 Client UK Research and Innovation (UKRI) Client reference NERC National Capability LTS-S: UK-SCAPE; NE/R016429/1 Confidentiality, ©2020 UK Centre for Ecology & Hydrology copyright and reproduction UKCEH reference UKCEH contact Chris Andrews details UKCEH, Bush Estate, Penicuik, EH26 0QB t: 0131 445 4343 e: [email protected] Author Chris Andrews, Rowley Snazell, Jan Dick Approved by Chris Andrews Signed Date 13/06/2020 UKCEH report … version 1.0 2 Spider community and species trends at the UK Environmental Change Network Cairngorm field station, 2007-2019 Contents Contents............................................................................................................................... 1 Summary ................................................................................................................................... 2 1 Introduction ....................................................................................................................... 3 1.1 Role of spiders in monitoring environmental change .......................................... 3 1.2 Environmental Change network (ECN) ................................................................
    [Show full text]
  • A Revised Check List of British Spiders
    134 Predation on mosquitoesTheridion by Southeast asopi, a new Asian species jumping for Europespiders article and their constant encouragement to complete this ROBERTS, M. J. 1998: Spinnengids. The Netherlands: Tirion Natuur Baarn. SCHMIDT, G. 1956: Zur Fauna der durch canarische Bananen eingeschleppten Spinnen mit Beschreibungen neuer Arten. Zoologischer Anzeiger 157: 140–153. References SIMON, E. 1914: Les arachnides de France. 6(1): 1–308. STAUDT, A. 2013: Nachweiskarten der Spinnentiere Deutschlands AGNARSSON, I. 2007: Morphological phylogeny of cobweb spiders (Arachnida: Araneae, Opiliones, Pseudoscorpiones), online at and their relatives (Araneae, Araneoidea, Theridiidae). Zoological http://spiderling.de/arages. Journal of the Linnean Society of London 141: 447–626. STAUDT, A. & HESELER, U. 2009: Blockschutt am Leienberg, Morphology and evolution of cobweb spider male genitalia Leienberg.htm. (Araneae, Theridiidae). Journal of Arachnology 35: 334–395. HAHN, C. W. 1831: Monographie der Spinnen. Heft 6. Nürnberg: Lechner: Arachnida). Berichte des naturwissenschaftlich-medizinischen 1, 4 pls. Vereins in Innsbruck 54: 151–157. Mediterranean Theridiidae (Araneae) – II. ZooKeys 16: 227–264. J. 2010: More than one third of the Belgian spider fauna (Araneae) Jahrbuch der Kaiserlich-Königlichen Gelehrt Gesellschaft in urban ecology. Nieuwsbrief Belgische Arachnologische Vereniging Krakau 41: 1–56. 25: 160–180. LEDOUX, J.-C. 1979: Theridium mystaceum et T. betteni, nouveaux pour WIEHLE, H. 1952: Eine übersehene deutsche Theridion-Art. Zoologischer la faune française (Araneae, Theridiidae). Revue Arachnologique 2: Anzeiger 149: 226–235. 283–289. LEVI, H.W. 1963: American spiders of the genus Theridion (Araneae, Zoologische Jahrbücher: Abteilung für Systematik, Ökologie und Theridiidae). Bulletin of the Museum of Comparative Zoology 129: Geographie der Tiere 88: 195–254.
    [Show full text]
  • Fungi and Nematoda on Centromerus Sylvaticus (Araneae, Linyphiidae)
    1998. P. A. Selden (ed.). Proceedings of the 17th European Colloquium of Arachnology, Edinburgh 1997. Fungi and Nematoda on Centromerus sylvaticus (Araneae, Linyphiidae) A. P. Noordam1, R. A. Samson2 and W. Sudhaus3 1Groenesteeg 104, 2312 SR Leiden, The Netherlands 2Centraal Bureau voor Schimmelcultures, Postbox 273, 3740 AG Baarn, The Netherlands 3Institut für Zoologie, Fachbereich Biologie, Freie Universität, 14195 Berlin, Germany Summary More than 30,000 Dutch dune spiders have been checked for the presence of attached organisms: small fungi proved to be the commonest, nematodes were also common. These fungi and nematodes were more or less restricted to spiders of the more vegetated parts of the dunes, and were especially common on winter-adult, litter-inhabiting Linyphiidae. Phenology of this phenomenon and spider body parts involved have been studied in detail for Centromerus sylvaticus (Blackwall)—2615 specimens were examined. Fungi appear in the autumn as tiny spots, often on the legs, and develop into more numerous small “brushes” in winter. Fungal infestation rates in C. sylvaticus rise from about 20% in November to about 50% in March and later in the last females of the season. Fungi are common on both sexes, whereas nematodes are much more frequent on the active, wandering males. The nematodes are almost always so-called immature “Dauer larvae” of Rhabditophanes sp. (Rhabditida). The fungi are non-sporulating and unidentifiable Hyphomycetes. The Nematoda show phoresy. The fungi may involve a mild parasitism. Fungal parasitism of spiders is well known from the humid tropics. Its regular occurrence in temperate Europe seems poorly documented. Introduction the phenologies of different species (Noordam, 1996).
    [Show full text]
  • The Land-Invertebrate Fauna on Surtsey During 2002–2006
    The land-invertebrate fauna on Surtsey during 2002–2006 Ólafsson, Erling; Ingimarsdottir, Maria Published in: Surtsey Research 2009 Document Version: Publisher's PDF, also known as Version of record Link to publication Citation for published version (APA): Ólafsson, E., & Ingimarsdottir, M. (2009). The land-invertebrate fauna on Surtsey during 2002–2006. Surtsey Research, 113-128. Total number of authors: 2 General rights Unless other specific re-use rights are stated the following general rights apply: Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Read more about Creative commons licenses: https://creativecommons.org/licenses/ Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. LUND UNIVERSITY PO Box 117 221 00 Lund +46 46-222 00 00 The land-invertebrate fauna on Surtsey during 2002–2006 ERLING ÓLAFSSON & MARÍA INGIMARSDÓTTIR Icelandic Institute of Natural History, Hlemmur 3, P.O. Box 5320, 125 Reykjavik, Iceland E-mail: [email protected] ABSTRACT Formal studies on invertebrate colonizers and establishments on Surtsey started in 1965 and the island was visited regularly for longer and shorter periods till 1984.
    [Show full text]
  • Arachnids (Araneae, Opiliones) from Grass Stand and Forest Litter in the Urals, Russia
    Biodiversity Data Journal 8: e55242 doi: 10.3897/BDJ.8.e55242 Data Paper Arachnids (Araneae, Opiliones) from grass stand and forest litter in the Urals, Russia Alexey Nesterkov‡, Maxim Zolotarev‡‡, Elena Belskaya , Tatyana Tuneva‡ ‡ Institute of Plant and Animal Ecology (IPAE), Yekaterinburg, Russia Corresponding author: Alexey Nesterkov ([email protected]) Academic editor: Dmitry Schigel Received: 08 Jun 2020 | Accepted: 30 Jun 2020 | Published: 08 Oct 2020 Citation: Nesterkov A, Zolotarev M, Belskaya E, Tuneva T (2020) Arachnids (Araneae, Opiliones) from grass stand and forest litter in the Urals, Russia. Biodiversity Data Journal 8: e55242. https://doi.org/10.3897/BDJ.8.e55242 Abstract Background Since the late 1980s, long-term monitoring of various components of natural ecosystems under conditions of industrial pollution has been carried out in the Central Urals. In the mid-2000s, similar programmes were started in the Southern Urals. As a part of these monitoring programmes, the data on invertebrates in different types of biotopes, collected with different methods and in a different time intervals, continue to be gathered. Amongst the most well-studied groups of invertebrates are spiders and harvestmen whose communities are a convenient indicator of the environment. The data collected through these monitoring programmes can also be used to study natural local biodiversity. New information The dataset, presented here, includes information from a long-term monitoring programme for Araneae and Opiliones that inhabit grass stands of secondary dry meadows and litter of spruce-fir, aspen-birch and pine-birch forests in the Central and Southern Urals. The dataset (available from the GBIF network at https://www.gbif.org/dataset/e170dbd1- a67f-4514-841c-5296b290ca90) describes the assemblage structure of spiders and © Nesterkov A et al.
    [Show full text]
  • Checklist of Lithuanian Diptera
    NAUJOS IR RETOS LIETUVOS VABZDŽIŲ RŪŠYS. 28 tomas 121 SEVERAL NEW FOR THE LITHUANIAN FAUNA SPECIES OF SPIDERS (ARANEAE) ONDŘEJ MACHAČ 1, POVILAS IVINSKIS 2, JOLANTA RIMŠAITĖ 2 1 Department of Ecology and Environmental Sciences, Faculty of Science, Palacký University, Slechtitelu 27, 77900 Olomouc, Czech Republic, E-mail: [email protected] 2 Nature Research Centre, Akademijos 2, Vilnius, Lithuania. E-mail: [email protected] Introduction Investigation of spider fauna in Lithuania does not have long tradition. Till now 445 spider species from 29 families are known in Lithuania (Bitienikytė & Rėlys, 2011). The first list of Lithuanian spiders was published in 1992 (Vilkas, 1992), then several new species added (Relys 1994, Relys 2000). Using nowadays methods of collecting spiders some new species for Lithuania were collected. We identified some spiders from the material in the collection of Laboratory of entomology (Nature Research Centre), as well as recently collected material. Data on 14 new species and one new spider family for Lithuanian spider fauna is reported in this paper. Material and Methods The material was collected during field research in different districts of Lithuania. Spiders were collected by pitfall traps, hand collection, window traps and Malaise traps. The same investigation plots in Curonian Spit, their names and numeration were used since 2008 (from plot 0 to plot 10 in different habitats in Curonian Spit; numeration in Juodkrantė cormorant colony is from 3a (the most recent used part) to 3d (oldest part of the colony)), therefore their numeration is given in locality data as well. The material is deposited in author’s collections and in the collection of the Laboratory of entomology, Nature Research Centre.
    [Show full text]