A Small Collection of Spiders (Arachnida: Araneae) from the River Vjosa, Albania – with an Updated Spider Checklist of Albania 213-232 © Zool.-Bot
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ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien. Frueher: Verh.des Zoologisch-Botanischen Vereins in Wien. seit 2014 "Acta ZooBot Austria" Jahr/Year: 2018 Band/Volume: 155_1 Autor(en)/Author(s): Blick Theo Artikel/Article: A small collection of spiders (Arachnida: Araneae) from the River Vjosa, Albania – with an updated spider checklist of Albania 213-232 © Zool.-Bot. Ges. Österreich, Austria; download unter www.zobodat.at Acta ZooBot Austria 155, 2018, 213–232 A small collection of spiders (Arachnida: Araneae) from the River Vjosa, Albania – with an updated spider checklist of Albania TheoBlick Five spider species were collected at the end of April 2017 in Albania on the River Vjosa near the village of Kutë (40.4754°N, 19.7538°E, 47m a.s.l.). The species are briefly dis- cussed and two of them, Marpissa pomatia and Marpissa nivoyi (Salticidae), are new re- cords for Albania. The importance of the conservation of the natural status of the River Vjosa is discussed. Finally, an updated checklist of the spiders of Albania is presented, which contains 490 spider species. BLICK T., 2018: Eine kleine Spinnensammlung (Arachnida: Araneae) vom Fluss Vjosa, Albanien – mit einer aktualisierten Spinnen-Checkliste Albaniens. Am Fluss Vjosa in der Nähe des Dorfes Kutë (40.4754°N, 19.7538°E, 47m a.s.l.) in Albanien wurden Ende April 2017 fünf Spinnenarten gesammelt. Die Arten werden kurz besprochen; darunter sind zwei, Marpissa pomatia und Marpissa nivoyi (Salticidae), Neunachweise für Albanien. Die Bedeutung des Erhaltes des ursprünglichen Zustan- des des Flusses Vjosa wird diskutiert. Zum Abschluss ist eine aktualisierte Checkliste der Spinnen Albaniens zusammengestellt, die 490 Spinnenarten umfasst. Keywords: Albania, Araneae, checklist, conservation, faunistics, River Vjosa, Salti- cidae, spiders. Introduction The spider fauna of Albania is still insufficiently known. Since the compilation by Deltshev et al. (2011, 335 species) the number of species known for Albania has increased by more than 35% (Vrenozi 2012, Vrenozi & Deltshev 2012a, 2012b, Vrenozi & Jäger 2012, 2013, Vrenozi & Dunlop 2013, Helsdingen & IJland 2015, Naumova et al. 2016, Helsdingen et al. 2018). Naumova et al (2016) offered a total of 461 spe- cies, Helsdingen (2017) listed 468 and Nentwig et al. (2018, https://araneae.nmbe.ch/ biodiversity/countrylist) listed 470 species, which are the basis for the checklist below. Details about the River Vjosa are given by Schiemer et al. (2018 this volume). The con- tribution by Komnenov (2018 this volume) deals particulary with a larger collection of spiders, and added 17 new spider records for Albania including one new species. Material and methods The sampling site is situated near the village of Kutë on a branch of the River Vjosa which is temporarily unconnected to the main river; co-ordinates 40.475390°N, 19.753832°E, 47 m a.s.l. Spiders were collected by Simon Vitecek, Wolfram Graf and Ulrich Heckes be- tween April 24 and 26, 2017 during the Austrian excursion to the River Vjosa. The spiders will be deposited in the Natural History Museum Vienna. © Zool.-Bot. Ges. Österreich, Austria; download unter www.zobodat.at 214 Blick T. Results Lariniodes suspicax (O. Pickard-Cambridge, 1876) (Araneidae) Material: 1 ♀, 24.-26.4.2017, leg. Graf. Determination: Šestáková et al. (2014: sub L. folium). Unlike its sister species L. cornutus (Clerck, 1757), which prefers wetlands, L. suspicax can be found at drier sites according to the literature (Nentwig et al. 2018). This assump- tion can be doubted not only based on the present record, but also e.g. Šestáková et al. (2014: sub L. folium) who listed numerous findings from wetlands. Older determinations of both species would be worth checking (Šestáková et al. 2014: 68: “There are, howev- er, some misidentifications ..., which could lead to misinformation about its distribution and biology”). Distribution: The species is known from northern Africa and Europe (not in UK and northern Europe) to Central Asia (Nentwig et al. 2018, Šestáková et al. 2014: sub L. folium, WSC 2018). Marpissa nivoyi (Lucas, 1846) (Salticidae) Material: 1 ♀, 24.-25.IV.2017, leg. Vitecek. Determination: Logunov (1999), Metzner (1999). The species prefers wetlands, in eastern parts of its distribution area it has also been found in steppes (Nentwig et al. 2018). Distribution: Europe (not in northern Europe) to Central Asia (Logunov 1999, Mikhailov 2013). New to Albania. This record from Albania diminishes the gaps in the SE-European countries for this species (Nentwig et al. 2018). Marpissa pomatia (Walckenaer, 1802) (Salticidae) Material: 1 ♂, 24.-25.IV.2017, leg Vitecek. Determination: Logunov (1999), Żabka (1997). The species inhabits a broad spectrum of habitats (e.g., Nentwig et al. 2018: “on conifers and under bark, in grass, in bogs and heathland”). Distribution: From Europe (not in UK and northern Europe) to Japan (Mikhailov 2013, Nentwig et al. 2018, WSC 2018). New to Albania. Discovery of this species in Albania also reduces the gaps in the SE-European countries (Nentwig et al. 2018). Mendoza canestrinii (Ninni, 1868) (Salticidae) Material: 1 ♀, 24.-25.IV.2017, leg. Vitecek; 1 ♀, 2 subadult ♂♂, 25.IV.2017, leg. Lauenbach. Determination: Logunov (1999), Metzner (1999). This jumping spider prefers reed habitats near water (Nentwig et al. 2018). © Zool.-Bot. Ges. Österreich, Austria; download unter www.zobodat.at A small collection of spiders (Arachnida: Araneae) from the River Vjosa, Albania – with an updated spider checklist of Albania 215 Distribution: Palaearctic, from Europe (Spain) to Asia (Japan and Vietnam), not extend- ing too far north (northern border in Europe: France, Czech Rep., Slovakia, Ukraine; Mikhailov 2013, Nentwig et al. 2018, WSC 2018). Tetragnatha nigrita Lendl, 1886 (Tetragnathidae) Material: 1 ♀, 25.IV.2017, leg. Heckes. Determination: Wiehle (1963), Almquist (2005). This long-jawed spider lives on trees and shrubs in damp forests, frequently near the wa- ter (Nentwig et al. 2018). Distribution: Palaearctic, from Portugal and Ireland to Japan (Mikhailov 2013, Nentwig et al. 2018, WSC 2018). Discussion This contribution contains only a small, sporadic collection of spiders and yet two new records for Albania are included – from which the jumping spider genus Marpissa is re- corded for the first time in Albania. Three species (Marpissa nivoyi, Mendoza canestrinii, Tetragnatha nigrita) are typical for wetlands, and for the other two (Lariniodes suspicax, Marpissa pomatia), wetlands belong to the known spectrum of their habitats. Komnenov (2018 this volume) reported 50 species from the River Vjosa including 17 new species re- cords for Albania with one new species. These 19 new species records increase the total of spider species known for Albania to 489 (see introduction above and checklist below). It can be assumed that 489 is still less than 50% of the spider species which really occur in Albania. For comparison, the species numbers of adjacent countries, including some exemplary for- mer totals are listed below: l Bulgaria: 991 species (Blagoev et al. 2008), 1043 species (Blagoev et al. 2018). l Greece: 856 (Bosmans & Chatzaki 2005), 1121 (Chatzaki et al. 2015), 1265 (1161 without Crete) (Nentwig et al. 2018: https://araneae.nmbe.ch/biodiversity/ countrylist). l Macedonia: 558 (Blagoev 2002), Komnenov (2014) alone added 145 species, 789 (Nentwig et al. 2018: https://araneae.nmbe.ch/biodiversity/countrylist). Conservation of natural river borders Natural rivers banks and their surroundings are very important sites for the conserva- tion of biodiversity in general and of spiders in particular (e.g., Bonn & Kleinwächter 1999, Bonn et al. 2002, Buchholz 2009, Gallé & Urák 2001, Heidt et al. 1998, Krumpálová 1996, 1997, 1998, Lambeets et al. 2008a, 2008b, Malt 1995, Schröder et al. 2011, Steinberger 1996, Steinberger & Thaler 1990, Weiss et al. 1998). The River Vjosa is in a natural stage and there can be expected to be more than 200 spider species living there, i.e. less than 25% is known until now. Any commercial change to the water regime will destroy this diversity and endanger the survival of a large number of habitat specialists, which still partly await their discovery. © Zool.-Bot. Ges. Österreich, Austria; download unter www.zobodat.at 216 Blick T. Updated checklist of the spiders of Albania The two major internet sources for spiders in European countries (Helsdingen 2017, Nentwig et al. 2018: https://araneae.nmbe.ch/biodiversity/countrylist) do not provide the same species for Albania and in both websites there are no detailed references for each Albanian species (there is a collection of references for each species, in which one has to search which is probably relevant for a given country). Furthermore, information on uncer- tain determinations (e.g., “?”, “cf.”, “pr.”) can be easily overlooked or is not included. There- fore, I present here an updated checklist for Albania, based on the last checklist (Deltshev et al. 2011), adding records published since this compilation (with reference) and in sev- eral cases comments are added (Tab. 1). Eleven published species records are evaluated as doubtful and are excluded from the Albanian checklist (Tab. 2). The total number of spider species known from Albania is now 489. This is certainly only an intermediate step, as noted above, but the records of more than 150 spider species new to Albania since 2011 justify this compilation. Tab. 1: Updated checklist of the spiders of Albania. – Tab. 1: Aktualisierte Checkliste der Spinnen Albaniens. Family/Species Source and notes Agelenidae Agelena labyrinthica (Clerck, 1757) Deltshev et al. (2011) Agelescape livida (Simon, 1875) Deltshev et al. (2011) Allagelena gracilens (C.L. Koch, 1841) Deltshev et al. (2011) Histopona laeta (Kulczyński, 1897) Deltshev et al. (2011) Histopona luxurians (Kulczyński, 1897) Deltshev et al. (2011) Histopona myops (Simon, 1885) Deltshev et al. (2011) Histopona torpida (C.L. Koch, 1837) Vrenozi (2012) Histopona vignai Brignoli, 1980 Muca & Vrenozi (2016): sub H.