ARACHNOLOGISCHE GESELLSCHAFT

Heft 12 (1996)

Spinnengemeinschaften mitteleuropäischer Kulturbiotope

Spider communities of arable land in central Europe

Abstract

This paper contains an analysis of the secies composition and dominance structure of the spider fauna of 13 different arable land sites in Berlin. Investigations were performed by pitfall trapping from April to December 1981. Species composition was extremely uniform despite different microclimatic conditions (soil humidity, light and temperature) and crop types. Only slight differences were found in the composition of abundant species. A multivariate analysis of species, together with microclimatic data, revealed that the measured abiotic factors do not explain the distribution of the species. Nearly all dominant spiders belong to eurytopic species of open habitat t ypes. Spider community descriptions were enhanced by evaluation of references concerning the spider fauna of arable land in central Europe. The composition of abundant species was nearly the same throughout the area. This applies to all different arable sites and furthermore to sites which are related to them ecologically (abandoned grassland, field margins, meadows and pastures). A way which spiders may colonize arable land is discussed critically.

Spiders (Araneae) of stony debris in North Bohemia

Spiders (Araneae) of stony debris in North Bohemia

Abstract

The arachnofauna was studied at five stony debris sites in northern Bohemia. In Central Europe, the northern and montane species inhabiting cold places live not only on mountain tops and peat bogs but also on the lower edges of boulder debris, where air streaming through the system of inner compartments gives rise to an exceedingly cold microclimate. At such cold sites, spiders can live either on bare stones (Bathyphantes simillimus, Wubanoides uralensis), or in the rich layers of moss and lichen (Diplocentria bidentata). Kratochviliella bicapitata exhibits a diplostenoecious occurence in stony debris and on the tree bark. Latithorax faustus and Theonoe minutissima display diplostenoecious occurence in stony debris and on peat bogs. The occurence of the species Scotina celans in the Czech Republic was documented for the first time.

Erstnachweis von Centromerus capucinus und Lepthyphantes insignis für die Schweiz (Arachnida: Araneae: Linyphiidae)

First records of Centromerus capucinus and Lepthyphantes insignis from Switzerland (Arachnida: Araneae: Linyphiidae)

Einige seltene Spinnenarten aus der Slowakei (Araneae)

Records of some rare spiders (Araneae) from Slovakia

Abstract

In South-western Slovakia (Ipel Valley), five rare spider species were found with insufficiently known distribution in Slovakia: Runcinia lateralis (C.L. Koch, 1838 - Thomisidae), Allomengea vidua (O.P.-Cambridge, 1889 - Linyphiidae), Theridion simile C.L. Koch, 1836 (Theridiidae), Gibbaranea ullrichi (Hahn, 1835 - Araneidae), Dolomedes fimbriatus (Clerck, 1757 - Pisauridae).

Nachweis von Mecynargus morulus im Harz - eine Wiederbestätigung für Deutschland (Araneae: Linyphiidae: Erigoninae)

Record of Mecynargus morulus from the Harz - Confirmation of Mecynargus morulus for Germany (Araneae: Linyphiidae: Erigoninae)

Die Besiedelung einer neugepflanzten Feldhecke durch epigäische Spinnen (Arachnida: Araneae). Ein ökofaunistischer Beitrag zur Kenntnis von Spinnenzönosen agrarwirtschaftlicher Intensivflächen (Schwand im Innkreis, Bezirk Braunau, Oberösterreich)

Die Besiedelung einer neugepflanzten Feldhecke durch epigäische Spinnen (Arachnida: Araneae). Ein ökofaunistischer Beitrag zur Kenntnis von Spinnenzönosen agrarwirtschaftlicher Intensivflächen (Schwand im Innkreis, Bezirk Braunau, Oberösterreich)

Untersuchungen zur Rolle ausgewählter netzbauender Spinnen (Araneae) im trophischen Beziehungsgefüge von Halbtrockenrasen

Untersuchungen zur Rolle ausgewählter netzbauender Spinnen (Araneae) im trophischen Beziehungsgefüge von Halbtrockenrasen

Cover/Contents Arachnologische Mitteilungen 12, 1996

Cover/Contents Arachnologische Mitteilungen 12, 1996

Arachnologische Mitteilungen 12, 1996

Arachnologische Mitteilungen 12, 1996

S.L. Esyunin & V.E. Efimik: Catalogue of the spiders (Arachnida, Aranei) of the Urals

S.L. Esyunin & V.E. Efimik: Catalogue of the spiders (Arachnida, Aranei) of the Urals

Abstract

book review: S.L. Esyunin & V.E. Efimik: Catalogue of the spiders (Arachnida, Aranei) of the Urals

Christian Wieser, Alois Kofler & Paul Mildner (Hrsg.): Naturführer Sablatnigmoor

Christian Wieser, Alois Kofler & Paul Mildner (Hrsg.): Naturführer Sablatnigmoor

Abstract

book review: Christian Wieser, Alois Kofler & Paul Mildner (Hrsg.): Naturführer Sablatnigmoor

Gesucht: Tegenaria campestris

Gesucht: Tegenaria campestris

In eigener Sache

In eigener Sache