Ground-Living Spiders in Bogs in Northern Europe

Koponen, Seppo

doi:10.1636/0161-8202(2002)030[0262:glsibi]2.0.co;2

Cited by 18 publications

(49 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…rocky pine forests, CT, VT, mixed forests; more rarely spruce mires) (Palmgren 1964, 1977a, Heimer & Nentwig 1991, Pajunen et al 1995, but also in dry to medium-moist meadows , 1977a, grasslands and heaths (Heimer & Nentwig 1991), clear-cuts and burnt-overs , shores (Lehtinen & Kleemola 1962), and peatlands (e.g. open bogs, Calluna bogs, Myrica-Molinia bogs, Ledum bogs, Alnus swamps, Phragmites fens, a peat harvesting area) (Koponen 1968, 1979, 2002a, 2002b, 1977a, Heimer & Nentwig 1991, Koponen et al 2001.…”

Section: Gnaphosidaementioning

confidence: 99%

See 1 more Smart Citation

Habitat affinities of 228 boreal Finnish spiders: a literature review

Matveinen-Huju¹

2004

Entomol. Fennica

View full text Add to dashboard Cite

Information about the habitat affinities of spiders is necessary in ecological studies. I focused on two factors in habitats of spiders: light intensity and moisture. First, the habitats were classified according to these factors. Canopy cover and tree species composition were used to indicate the amount of sunlight reaching the ground. Habitat moisture was determined indirectly from the vegetation. Second, the spider species were classified according to what kind of a habitat they were found in the literature. This paper updates and continues Huhta’s (1971) classification, including 228 boreal spider species, based on Finnish literature from boreal region.

show abstract

Section: Gnaphosidaementioning

confidence: 99%

“…It has been caught in peatlands [e.g. open bogs; in Lithuania also pine bogs; a xerophilous mire species in Koponen (1968)] (Koponen 1968, Koponen et al 2001, Koponen 2002b), dry heaths , clear-cuts and burnt-overs , forests (Pajunen et al 1995), and under Cladonia on rocks (Palmgren 1943).…”

Section: Gnaphosidaementioning

confidence: 99%

Habitat affinities of 228 boreal Finnish spiders: a literature review

Matveinen-Huju¹

2004

Entomol. Fennica

View full text Add to dashboard Cite

show abstract

“…At a large scale, and from the Mediterranean to the northern regions in Europe, a latitudinal gradient in species richness has been shown: a gradual decrease in species richness towards the north is consistent in total species number and in species number within species‐rich families (Hornung & Sólymos, ). It is also the case for other arthropods such as spiders (Koponen, Relys & Dapkus, ; Koponen, ) and ants (Gotelli & Ellison, ).…”

Section: Discussionmentioning

confidence: 91%

Faunistic data and biogeography of terrestrial isopods from Tunisian wetlands

et al. 2017

View full text Add to dashboard Cite

In Tunisia, while wetlands are considered as remarkable habitats for their faunal and floral diversity, few studies on the biogeography and the diversity of terrestrial isopods were performed. To fill this gap, we carried out a field study in the supralittoral zone of 146 Tunisian wetlands belonging to eight types (lagoon, river, lake, sebkha, dam, hill reservoir, beach and chott) and to five bioclimatic zones (humid, subhumid, semi‐arid, arid and Saharan). Field work was carried out in spring 2010. Terrestrial isopods were collected in the morning by hand search each time with the same sampling effort. During the study, 22 species of terrestrial isopods belonging to nine families were collected. Porcellio variabilis, Porcellio laevis, Chaetophiloscia elongata and Armadillidium pelagicum are the most common species identified. From the northern to the southern regions, a gradual decrease in species richness has been shown. The identified species belonged to different biogeographical categories: Mediterranean, Mediterranean‐Atlantic, North Africa with circum‐Sicilian islands, semi‐arid and Saharan species. Some of these species are endemic to Tunisia (Porcellio dominici) or to North Africa (Armadillidium sulcatum, Armadillidium tunisiense, Porcellio marginenotatus and P. variabilis). Terrestrial isopod species differ according to wetland type and bioclimatic zone.

show abstract

“…and bog bilberry in the long term ungrazed area implies that there are actual differences in moisture levels between treatments. Also Pardosa hyperborea, being relatively abundant in our samples in ungrazed areas, is known to prefer moist conditions (Koponen 1977), even to the extent of being one of the dominant species in peatlands of the boreal zone (Koponen 2002). The DCA ordination of the spider community split the treatments along two gradients: a first ordination axis that mainly represented lichen biomass and a second axis representing soil moisture and temperature.…”

Section: Impact Of Grazing On Vegetation and Environmental Variablesmentioning

confidence: 94%

“…At the current constantly high densities reindeer herds have substantial influence on the environment; irrespective of whether reindeer considered to be a native part of the ecosystem or a disturbance due to high densities and lack of natural pasture rotation migration. For instance, grazing can change, sustain and create habitats (Putman 1994), accelerate (Kielland et al 1997;Augustine & McNaughton 1998;Stark et al 2000;2002;Olofsson et al 2004) and even decelerate nutrient flux by affecting the detritus food web via changes in microclimate (Väre et al 1996;Pastor & Cohen 1997;Augustine & McNaughton 1998;Olofsson et al 2001). In addition, grazing has an impact on the community structure and species diversity of vegetation (e.g.…”

Section: Introductionmentioning

confidence: 99%

Peer Review #1 of "Effects of reindeer grazing and recovery after cessation of grazing on the ground-dwelling spider assemblage in Finnish Lapland (v0.2)"

2019

View full text Add to dashboard Cite

The effect of reindeer Rangifer tarandus L. grazing on the ground-dwelling spider assemblage in Northern Finland was studied. Changes in species richness, abundance and evenness of spider assemblages were analyzed in relation to changes in vegetation and environmental factors in long term grazed and ungrazed sites as well as sites that had recently switched from grazed to ungrazed and vice versa. Grazing was found to have a significant impact on height and biomass of lichens and other ground vegetation. However, it seemed not to have an impact on the total abundance of spiders. This is likely caused by opposing family and species level responses of spiders to the grazing regime. Lycosid numbers were highest in grazed and linyphiid numbers in ungrazed areas. Lycosidae species richness was highest in ungrazed areas whereas Linyphiidae richness showed no response to grazing. Four Linyphiidae, one Thomisidae and one Lycosidae species showed strong preference for specific treatments. Sites that had recovered from grazing for nine years and the sites that were grazed for the last nine years but were previously ungrazed resembled the long term grazed sites. The results emphasize the importance of reindeer as a modifier of boreal forest ecosystems but the impact of reindeer grazing on spiders seems to be family and species specific. The sites with reversed grazing treatment demonstrate that recovery from strong grazing pressure at these high latitudes is a slow process whereas reindeer can rapidly change the conditions in previously ungrazed sites similar to long term heavily grazed conditions.

show abstract

Ground-Living Spiders in Bogs in Northern Europe

Cited by 18 publications

References 4 publications

Habitat affinities of 228 boreal Finnish spiders: a literature review

Habitat affinities of 228 boreal Finnish spiders: a literature review

Faunistic data and biogeography of terrestrial isopods from Tunisian wetlands

Peer Review #1 of "Effects of reindeer grazing and recovery after cessation of grazing on the ground-dwelling spider assemblage in Finnish Lapland (v0.2)"

Contact Info

Product

Resources

About