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Arthropoda Selecta 17 (34): 185190

ї ARTHROPODA SELECTA, 2008

Small collection of spiders (Aranei) from the Polar Urals and Yamal Peninsula, Russia О небольшой коллекции пауков (Aranei) с Полярного Урала и Ямала Andrei V. Tanasevitch1, Seppo Koponen2 & Elina Kaarlejarvi А.В. Танасевич1, С. Копонен2 & Э. Каарлейярви3
1

3

Centre for Forest Ecology and Production, Russian Academy of Sciences, Profsoyuznaya Str. 84/32, Moscow 117997 Russia. E-mail: atan@orc.ru. Центр по проблемам экологии и продуктивности лесов РАН, Профсоюзная ул. 84/32, Москва 117997 Россия. 2 Zoological Museum, University of Turku, FI-20014 Turku Finland. E-mail: sepkopo@utu.fi. Зоологический музей, университет г. Турку, FI-20014 Турку Финляндия. 3 Arctic Centre, University of Lapland, P.O. Box 122, FI-96101 Rovaniemi Finland. Арктический Центр, Университет Лапландии, FI-96101 Рованиеми Финляндия.

KEY WORDS: Spiders, Polar Urals, Yamal Peninsula, chorology. КЛЮЧЕВЫЕ СЛОВА: Пауки, Полярный Урал, Ямал, хорология.

ABSTRACT. A spider collection from Polar Urals and South & Middle Yamal contains 48 species belonging to seven families. 16 species are recorded from Yamal Peninsula for the first time. For four species the middle Yamal area is the northernmost locality of their distribution. РЕЗЮМЕ. Н ебольшая коллекция п ауков, собранная на Полярном Урале, а также на южном и среднем Ямале содержит 48 видов из 7 семейств. 16 видов впервые отмечены для п-ова Ямал, а для 4 видов средний Ямал самая северная точка распространения.

the white spot of the spider fauna of Middle Yamal is now slightly covered. 33 species are recorded from this area, of which one species could be determined only to the genus level.

Material and methods
Altogether, 370 identifiable spider specimens were caught, the material is deposited in the Zoological Museum, University of Turku. Abbreviations used in the text and figures: AT Andrei Tanasevitch, CAVM Circumpolar Arctic Vegetation Map, EK Elina Kaarlejarvi, EP embolus proper, SK Seppo Koponen. Polar Urals Mts The material was collected by pitfall traps, 10 14.VII.2007, in a locality situated near Red Stones Mts (67.2549њN, 66.8192њE), southern side of Longotjegan River, ca 60 km NE of the Sob River Valley, leg. EK (see the map). This locality belongs to southern tundra subzone (subzone E of Circumpolar Arctic Vegetation Map [CAVM Team, 2003]), which is typically dominated by low shrubs. Vegetation type on the collection site was moss-dwarf birch tundra with 0.81.0 m high Alnus fruticosa shrubs and Sphagnum spp., Eriophorum vaginatum, Carex bigelowii, Rubus chamaemorus, Betula nana, Ledum palustre, etc. South Yamal The material was collected by pitfall traps, 17 22.VII.2007 & 1420.VIII.2007, in two closely-situat-

Introduction
Araneofauna of the Polar Urals is known rather well and according to the regional revision [Koponen, Marusik & Tanasevitch, 1998] it contains 174 species. The spider fauna of Yamal Peninsula is known unevenly, there are many species recorded from South Yamal, in the Catalogue of the spiders of the Urals: 160 species [Esyunin & Efimik, 1996]. Conversely, there are no data from Middle Yamal and only two species have been registered from North Yamal, i.e., Halorates spetsbergensis (Thorell, 1872) and Erigone arctica sibirica Kulczynski, 1908 [Holm, 1973]. The latter determination may be a mistake (see below). So, a small spider material, collected by the author EK, from Middle Yamal is very interesting and important. Even if the new material from Polar Urals and South Yamal did not give any new species for these areas (only new localities and information about biotope distribution),


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Map. Localities of the collected material: Square the Polar Urals, Crest South Yamal, Circles No1 & No2 localities in Middle Yamal. Карта. Места сборов: квадрат Полярный Урал; крест южный Ямал; кружки средний Ямал: точки 1 и 2.

ed localities, and we considered them as one point (67.4500њN, 68.0800њE), leg. EK (see the map). Also this locality belongs to southern tundra subzone (subzone E of CAVM [CAVM Team, 2003]), and corresponds the zonal community, i.e., moss-dwarf shrub tundra (Aulacomnium palustre, A. turgidum, Sphagnum spp., Vaccinium uliginosum, V. vitis-idea, Empetrum nigrum, Rubus chamaemorus, Betula nana). Middle Yamal The material was collected in JulyAugust 2005 by pitfall traps from two localities in Middle Yamal both of them belonging to typical tundra, subzone D of CAVM [CAVM Team, 2003], (see the map): Locality No1: 20 km S of Bovanenkovo gas field, 70.12њN, 68.3216њE, 20 m a.s.l., 924.7.2005, leg. EK. The pitfall traps were arranged on slope (1030 m a s.l.) from moist creek side to sandy hill top. At the base of slope vegetation was wet moss-sedge tundra (Sphagnum spp., Carex aquatilis, Eriophorum angustifolium, Calliergon cordifolium, Salix nummularia). Upper, still moist but less wet, community is situated in moss-sedge-equisetum tundra with sparse willows (Polytrichum strictum, P. hyperboreum, Carex aquatilis, Equisetum arvense, Tanacetum bipinnatum, Salix

nummularia). The community near the top of hill on dry sandy soil is rather xerotic: lichen-moss-dwarf shrubs tundra with Cetraria nigricans, C. islandica, Polytrichum hyperboreum, Polygonum viviparum, Pogonatum dentatum, Festuca rubra, Equisetum arvense, Tanacetum bipinnatum, Artemisia tilesii, Salix nummularia & Betula nana. In whole, this locality corresponds to the intrazonal type of tundra communities (for details, see Tanasevitch & Koponen [2007]). Locality No2 (ca 40 km to the North from locality No1): Bovanenkovo gas field, 70.3942њN, 68.4368њE, 35 m a.s.l., 26.73.8.2005, leg. EK. The material was collected by pitfall traps in a flat lowland on Sejaha River, occupied by moss-grass-willow shrub tundra which corresponds to a typical intrazonal tundra community: Aulacomnium turgidum, Calliergon cordifolium , Bryum pseudotriquetrum , Brachythecium mildeanum, Sanionia uncinata, Carex aquatilis, Eriophorum angustifolium, Calamagrostis stricta, Poa colpodea, Stellaria peduncularis, Equisetum arvense, Rubus arcticus, Betula nana, Salix lanata & S. glauca.

Results and Discussion
Twelve species from Polar Urals and ten from South Yamal (see Table 1) are common elements for the


Small spider collection from the Polar Urals & Yamal

187

Table 1. A list of species from the Polar Urals Mts, and South & Middle Yamal Peninsula. Таблица 1. Список видов пауков, собранных на Полярном Урале, южном и среднем Ямале.

List of species Range Fam. Linyphiidae Agyneta allosubtilis Loksa, 1965 Agyneta brusnewi (Kulczynski, 1908)* Agyneta nigripes (Simon, 1884)* Agyneta ripariensis Tanasevitch, 1984 Bathyphantes eumenis (L. Koch, 1879) Bathyphantes gracilis (Blackwall, 1841)* Bathyphantes humilis (L. Koch, 1879) Bathyphantes setiger F.O. Pickard-Cambridge, 1894 Diplocephalus barbiger (Roewer, 1955)* Erigone arctica palaearctica Braendegaard, 1934* ж Erigone psychrophila Thorell, 1872 Erigone remota L. Koch, 1869* Erigone tirolensis L. Koch, 1872* Erigone whymperi O. Pickard-Cambridge, 1877* Gibothorax tchernovi Eskov, 1989* Halorates holmgreni (Thorell, 1871) Halorates spetsbergensis (Thorell, 1872) Hilaira nubigena Hull, 1911 Hilaira proletaria (L. Koch, 1879) Hypselistes jacksoni (O. Pickard-Cambridge, 1902)* Mecynargus paetulus (O. Pickard-Cambridge, 1875) Oreoneta leviceps (L. Koch, 1879) Oreoneta uralensis Saaristo et Marusik, 2004* Oreonetides sp. Pelecopsis mengei (Simon, 1884) Praestigia groenlandica Holm, 1967* (?) Pseudocyba miracula Tanasevitch, 1984 Semljicola alticola (Holm, 1950)* Semljicola lapponicus (Holm, 1939) Styloctetor lehtineni Marusik et Tanasevitch, 1998* Tarsiphantes latithorax Strand, 1905* Tmeticus nigriceps (Kulczynski, 1916) Zornella cultrigera (L. Koch, 1879) Fam. Tetragnathidae Pachygnatha clercki Sundevall, 1823 Fam. Araneidae Araneus marmoreus Clerck, 1757 Fam. Lycosidae Alopecosa hirtipes (Kulczynski, 1907) Alopecosa mutabilis (Kulczynski, 1908) Arctosa alpigena (Doleschall, 1852) Pardosa indecora L. Koch, 1879 P. lapponica (Thorell, 1872) P. septentrionalis (Westring, 1861) Fam. Gnaphosidae Gnaphosa orites Chamberlin, 1922 Haplodrassus moderatus (Kulczynski, 1897) Micaria constricta Emerton, 1894*

Polar Urals

South Yamal

Middle Yamal Locality No1 2 2 12 , 18 Locality No2

SN S H S H H S P SWN E H P H H S H H P SA H H SN WS H H S FS FSWN S H WS H H H SN SA H S H P H P H 1 1 1 2 4 , 10 2 8 1 1 1 1 2 1 1

3 , 1

2 , 1 1 ** 1 30 , 5 1 5 5 1 1 , 3 1 , 6 44 & 1

1 , 6

3 , 4 1 2 1 ** 18 , 3 2 , 1 2 **

1 , 3 1 1 , 2 1 1 1 , 18 ** 2 50 1 , 1

1

1 , 1

21 , 2 1 , 4

1

6


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Table 1 (contituing). Таблица 1 (продолжение).

List of species Range Fam. Philodromidae Thanatus arcticus Thorell, 1872 Fam. Thomisidae Ozyptila arctica Kulczynski, 1908 Xysticus albidus Grese, 1909 Xysticus britcheri Gertsch, 1934

Polar Urals 2 1 , 2 11 , 3

South Yamal

Middle Yamal Locality No1 Locality No2

H H FS SN

3

(*) species recorded from Yamal Peninsula for the first time; (**) northernmost point of distribution. Range: FS FennoscandianSiberian, H Holarctic, P Palaearctic, PWN PalaearcticWest Nearctic, S Siberian, SA SiberianAlaskan, SN SiberianNearctic, SWN SiberianWest Nearctic, WS West Siberian. (*) виды, впервые отмеченные на п-ове Ямал; (**) самая северная точка ареала вида. Тип ареала: FS фенноскандинавско-сибирский, H голарктический, P палеарктический, P-WN палеарктический западно-неарктический, S сибирский, SA сибирско-аляскинский, SN сибирско-неарктический, SWM сибирский западно-неарктический, WS западно-сибирский.

southern tundra communities and do not add anything to the faunistic lists of these areas. Note here, that according to the revision of Saaristo & Marusik [2004], some previous information about a few species have been changed, e.g. all records of Hilaira frigida frigida (Thorell, 1872) & H. tatrica tatrica Kulczyсski, 1915 from the Urals and South Yamal are actually concerning Oreoneta uralensis Saaristo et Marusik, 2004 [Saaristo & Marusik, 2004]. Certainly, the material collected by short-term pitfall trapping from Middle Yamal, does not give a full picture of the studied fauna, but, nevertheless, it is very interesting: among 33 species, 16 of them are recorded in Yamal Peninsula for the first time. For four linyphiid species, Bathyphantes setiger F.O. Pickard-Cambridge, 1894, Oreoneta uralensis Saaristo et Marusik, 2004, Semljicola alticola (Holm, 1950) and Styloctetor lehtineni Marusik et Tanasevitch, 1998, this middle Yamal area is the northernmost locality of their distribution. For Erigone whymperi O. Pickard-Cambridge, 1877 Middle Yamal is the second record in Eurasia: this species was earlier known only from the Vorkuta Area in the East of the Bolshezemelskaya tundra [Tanasevitch & Koponen, 2007]. A male of Oreonetides sp. is very similar to O. badzhalensis Eskov, 1991, of which the male is still undescribed, but existing in the Tanasevitchs personal collection; probably it is unknown male for O. beringianus Eskov, 1991, described based on females from Magadan Area and Chukotka [Eskov, 1991]. The Erigone arctica material from Middle Yamal contents Erigone arctica palaearctica Brжndegaard, 1934 (Figs 114), instead of expected Erigone arctica sibirica Kulczyсski, 1908, so, the determination of Erigone a. sibirica from North Yamal [Holm, 1973], based on females only, may be doubtful. Taxonomic status of Praestigia groenlandica Holm, 1967 found is not clear. The present first author (AT)

is treating P. groenlandica as a Holarctic circumpolar species. The second author (SK) follows Marusik et al. [2008], in which case P. groenlandica lives only in Greenland and adjacent northern Canada, and the present material may contain other species, described in the paper mentioned above. The majority of registered species have widespread distribution (H, P, PWN, SN, see legend in Table 1), but most of them are according to their zonal preference arctic, arcto-alpine, or arcto-boreal species, and only a few species, e.g., Araneus marmoreus Clerck, 1757, Bathyphantes gracilis (Blackwall, 1841), Pelecopsis mengei (Simon, 1884), Pachygnatha clercki Sundevall, 1823, etc are polyzonals. In Table 1, distribution pattern of species from the studied areas is proposed.
ACKNOWLEDGEMENTS. We thank Dr. Bruce Forbes at Arctic Centre, University of Lapland, for making collections by EK possible within ENSINOR projects field expeditions on Polar Ural Mountains and on Central Yamal. The ENSINOR project was funded by the Russia in Flux program of the Academy of Finland (decision #208147). Collection on South Yamal was done on the NASA/NEESPI 2007 expedition to Northwest Siberia coordinated by Dr. D.A. Walker at Institute of Arctic Biology, University of Alaska Fairbanks. The project was funded by NASAs LandCover Land-Use Change (LCLUC) program (Grant NNG6GE00A). EK also thanks the whole teams of expeditions for possibility to carry out collections and for unforgettable memories. Juha Kaarlejarvis help with pitfall traps in 2007 is appreciated.

References
CAVM Team. 2003. Circumpolar Arctic Vegetation Map. Scale 1:7,500,000. Conservation of Arctic Flora and Fauna (CAFF) Map No. 1. U.S. Fish and Wildlife Service, Anchorage, Alaska.


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Figs 114. Variability of the genitalic structure of Erigone arctica palaearctica Brжndegaard, 1934: 18 left palpal tibia (13, 7, 8 lateral view, 46 ventro-lateral view); 911 embolic division, 1214 epigyne (dorsal view). Arrows show the same specimen. Abbreviation: EP embolus proper. Рис. 114. Изменчивость генитальных структур у Erigone arctica palaearctica Brжndegaard, 1934: 18 голень левой пальпы (13, 7, 8 вид сбоку, 46 вид снизу и сбоку); 911 эмболюсный отдел; 1214 эпигина (вид сверху). Стрелки указывают на один и тот же экземпляр. Сокращения: EP собственно эмболюс.


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Selecta. Vol.6. No.3/4. P.109119. Marusik Y.M., Gnelitsa V.G., Koponen S. 2008. A survey of Holarctic Linyphiidae (Araneae). 3. A review of the genus Praestigia Millidge, 1954 // Bull. Br. arachnol. Soc. Vol.14. Pt5. P.213231. Saaristo M.I., Marusik Y.M. 2004. Revision of the Holarctic spider genus Oreoneta Kulczyсski, 1894 (Arachnida: Aranei: Linyphiidae) // Arthropoda Selecta. Vol.12. No.3-4. P.207249 (for 2003). Tanasevitch A.V., Koponen S. 2007. Spiders (Aranei) of the southern tundra in the Russian Plain // Arthropoda Selecta. Vol.15. No.4. P.295345 (for 2006).

Esyunin S.L., Efimik V.E. 1996. Catalogue of the Spiders (Arachnida, Aranei) of the Urals. KMK Sci. Press. Moscow. 228 pp. Eskov K.Y. 1991. [On the taxonomy and zoogeography of the spider genera Maro and Oreonetides (Aranei, Linyphiidae]) // Zool. Zhurn. Vol.70. No.4. P.4554 [in Russian, with English summary]. Holm Е. 1973. On the spiders collected during the Swedish expeditions to Novaya Zemlya and Yenisey in 1875 and 1876 // Zoologica Scripta. Vol.2. P.71110. Koponen S., Marusik Y.M., Tanasevitch A.V. 1998. New data on the spider fauna of the Polar Urals (Aranei) // Arthropoda