Check list of the Hungarian Salticidae with biogeographical notes

An updated check list of the Hungarian jumping spider fauna is presented. 70, species are recorded from Hungary so far. Four species are new to the Hungarian fauna: Hasarius adansoni, Neon valentulus, Sitticus caricis, Synageles subcingulatus. With 12 original drawings

Somogy megye pókfaunája (Aranea) = Spider Fauna of Somogy County (Aranea)

Chyzer and Kulczynski (1891, 1894, 1897), Kolosváry (1935), Loksa (1975, 1980, 1985, in Szinetár 1998), Farkas et al (1998), as well as the author (Szinetár 1992, 1998) participated in the researches on spider fauna of Somogy county. As a result of these investigations, 334 spider species were identified in the area of Somogy county. This means 46% of the Hungarian spider fauna (Samu & Szinetár 1999)

Taxonomical remarks on Cryptodrassus hungaricus (BALOGH, 1935) (Araneae: Gnaphosidae)

Die Gattung Cryptodrassus MILLER, 1943 mit der einzigen bisher beschriebenen Art C. pulchellus MILLER, 1943 galt bis vor kurzem als endemisch für südmährische und slowakische Xerothermstandorte (GAJDOS et al. 1984, BUCHAR 1997a, 1997b). OVTSHARENKO et al. (1994) haben die Eigenständigkeit der Gattung bestätigt und auf die nahen Beziehungen zu Synaphosus PLATNICK & SHADAB, 1980 hingewiesen

A Látrányi Puszta Természetvédelmi Terület pókfaunisztikai (Araneae) vizsgálatának eredményei

The examination carried out in 2000-2002 yielded 152 spider species including Pirata insularis, which is new to the Hungarian spider fauna. The hitherto known spider fauna of Somogy county was enlarged by 24 newly detected species including two protected ones: Atypuspiceus and Dolomedesfimbriatus. The high number of indigeneous species is probabaly due to the fact that the relatively small area is rather he-terogenic in the composition of its fauna. What's particularly valuable is the simultaneous presence of species typical of both dry sandy grasslands and of fen meadows

The effect of exposition time and temperature on spiders (Araneae) overwintering on the bark of black pine (Pinus nigra)

The effect of exposition time (time between the installation of traps and the collection of spiders) and autumn air temperature on spiders overwintering on tree bark was studied in a planted black pine forest (Pinus nigra) near Debrecen (east Hungary). We collected spiders from traps fixed 2 m high on tree trunks once every five days for 50 days in 1999 and 2000. We collected 957 spiders belonging to 15 species and 1 species determined to the genus level in the two years combined. In 1999, the diversity and number of spiders increased with exposition time but were not influenced by temperature when data were combined for each sampling time. This was because temperature was low in the middle of the sampling period, but increased again at the end, which weakened its effect. However, the diversity and number of individuals continued to increase even when temperature increased at the end of the sampling period. In 2000, the number of individuals increased by exposition time because we found individuals of Philodromus margaritatus in very high numbers on the last sampling occasion. There were no other differences in 2000 because temperature was constantly high during the sampling period. Our results suggest that the movement of spiders to the bark is a characteristic process and that the diversity and number of spiders continue to increase in the autumn even when temperature slightly increases. This process, however, can be delayed if temperature is constantly high during the study period

Regional variations in agrobiont composition and agrobiont life history of spiders (Araneae) within Hungary

Agrobiont spider species are well adapted to arable systems, which have fairly uniform vegetation structure and pest assemblages over continent-wide areas. We wanted to study, whether agrobiont spider subassemblages and the life history of the most prominent agrobiont, Pardosa agrestis, show any regional variation within Hungary, where only modest climatic differences exist between the NW and SE parts of the country. We studied agrobiont species of spider assemblages in 27 alfalfa and 21 cereal fields with suction sampling and pitfalls. The similarity structure of these agrobiont sub-assemblages (Sørensen distance measure) was congruent with the geographic distance matrices (Eucledian distance), as tested by Mantel tests. However, if we considered sub-assemblages consisting of the non-agrobiont species, this congruency was always higher. Thus, agrobionts responded only moderately to geographical variation if we compare them to non-agrobiont species. We studied the generation numbers and the occurrence of the first adult individuals in P. agrestis; the most common agrobiont spider in Hungary. This comparison involved comparing fields along a NW – SE gradient during 6 sampling years in pairwise comparisons, where in each year a northern and a southern population was compared with a minimum distance of 126 km in between. In generation numbers there was no difference; we found two generations across Hungary. In contrast, the first occurrence of adult individuals was on average 15 days earlier in both generations in the more southern populations. Thus, it can be concluded that agrobionts show a fairly stable and relatively low magnitude response over country-sized geographical ranges

Arachnofaunistical studies in Csákányospuszta and surroundings (Tatabánya, Komárom-Esztergom county, Hungary)

Faunistical investigations of the 17th Biodiversity Days revealed the occurrence of 129 spider (Araneae) species in Csákányospuszta, northernmost part of Vértes Mountains, Hungary. Among the collected species there was 1 proteceted species (Atypus piceus (Sulzer, 1776)) and were several rare ones to the Hungarian fauna (Collinsia inerrans (O. P.-Cambridge, 1885), Entelecara flavipes (Blackwall, 1834), Metopobactrus prominulus (O. P.-Cambridge, 1872), Zora parallela Simon, 1878, Lasaeola prona (Menge, 1868), Tmarus stellio Simon, 1875)

Szigetköz néhány jellemző élőhely-típusának arachnológiai állapotfelmérése (2013-2014)

This paper contains the arachnofaunistical results of the past two years from several typical habitats in Szigetköz Landscape Protection Area. All sampling areas belong to Natura 2000 network. Pitfal traps have been applied to sample 17 areas during the winter of 2013 and during the spring of 2014. Hard and soft-wood forests, meadows and marsh and loess grasslands have been selected as study areas. In total 86 species have been recorded including protected (Atypus affinis) and rare (Diplocephalus latifrons, Gongylidiellum latebricola, Cnephalocotes obscurus, Panamomops latifrons) taxa. The most significant finding of the study is - as suspected earlier – that the spider fauna shows the aridification of most habitats. It remains an open question whether the Szigetköz’s watersupplier system – paralelly developed with this study – would be able to stop and reverse the aridification and the resulting degradation and transformation of the typical wetland communities