Habitat affinities of 228 boreal Finnish spiders: a literature review

Matveinen-Huju, Katja

doi:10.33338/ef.84220

Cited by 6 publications

(4 citation statements)

References 9 publications

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“…The number of Lycosidae species, however, was, on average, over twice as high in the pine sapling stands as in the birch pole‐stage stands, comprising the most open and most closed stand types, respectively. This is in reasonably good agreement with an earlier review of the habitat affinities of boreal spiders, which found that over 90% of the Gnaphosidae and Lycosidae species preferred open and/or semi‐open habitats (Matveinen‐Huju, 2004), and a study comparing partially (60–85%) harvested and unharvested forests (Halaj et al , 2008). With respect to the number of Lycosidae specimens, however, our results are in contrast to those of Buddle et al (2000) who reported significantly more lycosids in young compared with older stands.…”

Section: Discussionsupporting

confidence: 91%

Stand type is more important than red wood ant abundance for the structure of ground‐dwelling arthropod assemblages in managed boreal forests

Neuvonen¹,

Saikkonen²,

Sundström³

et al. 2012

Agri and Forest Entomology

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1 The relationships between red wood ants (Formica rufa group) and other grounddwelling arthropods were studied in young managed forests stands in Eastern Finland. The main objectives were: (i) to test the influence of stand type (dominant tree species; age: sapling versus pole stage) and numbers of red wood ants on the occurrence of other ground-dwelling arthropods and (ii) to study the occurrence of red wood ants versus other arthropods on a distance gradient from ant mounds. We used pitfall traps set in 5-14-year-old sapling stands and 30-45-year-old pole-stage stands of Scots pine (Pinus sylvestris L.) and birch (Betula spp.) forests. 2 Pitfall trap catches of red wood ants did not vary significantly between the forest stand types, although some groups of other arthropods showed clear responses to stand type (e.g. catches of other Formicinae and Gnaphosidae were higher in sapling stands than in pole-stage stands). The number of red wood ants clearly explained less of the variation in assemblages of other ground-dwelling arthropods than the forest stand type. 3 Red wood ant numbers decreased significantly with distance from the mounds, but the other ground-dwelling arthropods were insensitive to this gradient or even showed a preference for proximity to ant mounds and high ant activity. 4 The results obtained in the present study suggest that wood ants do not have strong effects on several other ground-dwelling arthropod groups in young managed forests other than in the immediate vicinity of their mounds.

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Section: Discussionsupporting

confidence: 91%

Stand type is more important than red wood ant abundance for the structure of ground‐dwelling arthropod assemblages in managed boreal forests

Neuvonen¹,

Saikkonen²,

Sundström³

et al. 2012

Agri and Forest Entomology

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“… Agnyphantes expunctus was the most abundant species of the inventory. This species has been previously found from pine ( Nekhaeva 2016 ), spruce ( Palmgren 1977 ) and birch ( Nekhaeva 2015 ) forests and also from open, semi-open and semi-moistured areas ( Matveinen-Huju 2004 ). This has also been considered as a northern species in Finland since 1977 ( Palmgren 1977 ).…”

Section: Additional Informationmentioning

confidence: 79%

Standardised spider (Arachnida, Araneae) inventory of Kilpisjärvi, Finland

Kiljunen¹,

Pajunen²,

Fukushima³

et al. 2020

BDJ

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A spider taxonomy and ecology field course was organised in Kilpisjärvi Biological Station, northern Finland, in July 2019. During the course, four 50 × 50 m plots in mountain birch forest habitat were sampled following a standardised protocol. In addition to teaching and learning about spider identification, behaviour, ecology and sampling, the main aim of the course was to collect comparable data from the Kilpisjärvi area as part of a global project, with the purpose of uncovering global spider diversity patterns. A total of 2613 spiders were collected, of which 892 (34%) were adults. Due to uncertainty of juvenile identification, only adults are included in the data presented in this paper. The observed adult spiders belong to 51 species, 40 genera and 11 families, of which the Linyphiidae were the most rich and abundant with 28 (55%) species and 461 (52%) individuals. Lycosidae had six species and 286 individuals, Gnaphosidae five species and 19 individuals, Thomisidae four species and 24 individuals, Theridiidae two species and 23 individuals. All other six families had one species and less than 40 individuals. The most abundant species were the linyphiid Agnyphantes expunctus (204) and the lycosids Pardosa eiseni (164) and Pardosa hyperborea (107).

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“…Spider species were classified according to their habitat affinities (for details and references, see Matveinen-Huju 2004). Species were assigned to the habitat classes listed below based on their occurrences in literature.…”

Section: Habitat Affinitiesmentioning

confidence: 99%

Effects of alternative harvesting methods on boreal forest spider assemblages

Matveinen-Huju

Koivula

2008

Can. J. For. Res.

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Forestry is among the most important disturbance forces in the boreal region, having caused drastic changes to the biota. Forest industries have recently introduced alternative logging techniques to better maintain forest diversity, but little is known on how these function. We studied the short-term effects of various logging methods on ground-dwelling spiders in Finland, using pitfall traps 1 year before and 2.5 years after logging. The compared logging regimes were (i) clear-cutting, (ii) retention felling, (iii) gap felling, (iv) thinning, and (v) control. We found that (1) clear-cutting and retention felling drastically changed the spider fauna. The abundance of forest species decreased with these methods, whereas most open-habitat species showed the opposite response, being caught only after logging. Moreover, multivariate analyses (nonmetric multidimensional scaling, multivariate regression trees) indicated that clear-cutting and retention felling produced similar spider faunas. (2) Increasing retention of trees caused less abrupt changes in spider fauna. Gap felling produced variable and intermediate responses, whereas thinning closely resembled control. We conclude that retention patches of a few tens of trees within clearcuts may not function as ''lifeboats'' for forest spiders; gap felling preserves some forest species but also supports the colonization of open-habitat species; and the studied thinning treatment well preserves the forest-floor spider assemblage.Résumé : La foresterie, un des principaux agents de perturbation de la région boréale, cause des changements draconiens dans le biote. L'industrie forestière a introduit récemment des méthodes alternatives de récolte dans le but de mieux conserver la diversité forestière, mais on ignore dans quelle mesure elles fonctionnent. Nous avons étudié les effets à court terme de différentes méthodes de récolte sur les araignées du parterre forestier en Finlande, au moyen de pièges fosses, un an avant et 2,5 ans après la récolte. Les régimes de coupe testés étaient (i) la coupe à blanc, (ii) la coupe avec rétention d'arbres, (iii) la coupe par trouées, (iv) la coupe d'éclaircie et (v) un témoin. Nous avons observé que (1) la coupe à blanc et la coupe avec rétention d'arbres ont entraîné un changement radical dans la faune arachnéenne : l'abondance des espèces forestières a diminué tandis que la plupart des espèces de milieu ouvert ont eu la réaction opposée, n'ayant été capturées qu'après la coupe. De plus, des analyses multivariées (NMDS, MRT) ont montré que la coupe à blanc et la coupe avec rétention d'arbres favorisent sensiblement la même faune arachnéenne. (2) Une rétention accrue d'arbres cause des changements moins radicaux dans la faune arachnéenne. La coupe par trouées a produit des résultats variables et intermédiaires, tandis que la coupe d'éclaircie ressemblait étroitement au témoin. Nous concluons que la rétention de bouquets de quelques dizaines d'arbres dans les parterres de coupe pourrait ne pas faire office de «bouées de sauvetage» pour l...

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Habitat affinities of 228 boreal Finnish spiders: a literature review

Cited by 6 publications

References 9 publications

Stand type is more important than red wood ant abundance for the structure of ground‐dwelling arthropod assemblages in managed boreal forests

Stand type is more important than red wood ant abundance for the structure of ground‐dwelling arthropod assemblages in managed boreal forests

Standardised spider (Arachnida, Araneae) inventory of Kilpisjärvi, Finland

Effects of alternative harvesting methods on boreal forest spider assemblages

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