Ground-dwelling spider (Araneae) and carabid beetle (Coleoptera: Carabidae) community assemblages in mixed and monoculture stands of oak (Quercus robur L./Quercus petraea (Matt.) Liebl.) and Scots pine (Pinus sylvestris L.)

Barsoum, Nadia; Fuller, Lauren; Ashwood, Frank; Reed, Katy; Bonnet-Lebrun, A-S; Leung, Felix

doi:10.1016/j.foreco.2013.08.063

Cited by 37 publications

(34 citation statements)

References 42 publications

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“…Cavard et al, 2011). However, a few recent studies have demonstrated that mixed stands of pine and oak trees showed no influence on grounddwelling spider diversity when compared to single species stands (Oxbrough et al, 2012;Barsoum et al, 2014). Smallscale experimental approaches, like ours, provide important insights in ecological hypothesis testing under controlled situations.…”

Section: Discussionmentioning

confidence: 82%

Spider community responds to litter complexity: insights from a small-scale experiment in an exotic pine stand

Podgaiski

Rodrigues

2017

Iheringia, Sér. Zool.

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ABSTRACT. Conservation of biodiversity in agroecosystems is an urgent need, and a suitable approach to maximize animal biodiversity and their services is the restoration of habitat heterogeneity. Here we investigated the value of increasing litter complexity in tree plantations of exotic pine for ground spiders. We hypothesized that increasing the litter complexity of these systems, as it would be the case in ecologically designed plantations, would increase spider aggregations. We performed a small-scale litter manipulation experiment within an exotic pine stand in the municipality of Minas do Leão, Rio Grande do Sul, Brazil, and compared spider diversity in simple (only pine needles) and complex substrates (with the addition of diverse native broadleaves). We found 1,110 spiders, 19 families and 32 morphospecies. The most abundant families were Linyphiidae, Theridiidae and Salticidade, and the dominant morphospecies were Thymoites sp. 2 and Lygarina sp. Web-building spiders represented 61% of total spider abundance, and 17 species, while hunting spiders, 49% and 15 species. As expected, densities of spider individuals and species from both web-building and hunting spiders were higher in complex litter substrate. Potential preys (Collembola) also responded positively to the treatment, and had infl uence of spider community patterns. Our results suggest that ensuring some degree of plant and litter diversity within pine stands (e.g. understory establishment) might foster spider aggregations and possibly help to conserve their diversity at local-scales. KEYWORDS.Habitat complexity, habitat selection, species diversity, foraging strategy. RESUMO.Comunidade de aranhas responde a complexidade da serapilheira: percepções de um experimento de pequena escala em um talhão de pinus exótico. A conservação da biodiversidade em agroecossistemas é uma necessidade urgente, e uma abordagem adequada a maximizar a biodiversidade animal e seus serviços é a restauração da heterogeneidade de habitats. Aqui nós investigamos o valor do aumento da complexidade da serapilheira em plantações exóticas de pinus para aranhas de solo. Nossa hipótese é que aumentando a complexidade da serapilheira nestes sistemas, como seria o caso em plantações com design ecológico, as agregações de aranhas aumentariam. Nós realizamos uma manipulação experimental de pequena escala em uma plantação exótica de pinus no município de Minas do Leão, Rio Grande do Sul, e comparamos a diversidade de aranhas em substrato simples (somente acículas de pinus) e complexo (com adição de folhas nativas diversas). Nós encontramos 1.110 aranhas, 19 famílias e 32 morfoespécies. As famílias mais abundantes foram Linyphiidae, Theridiidae e Salticidade, e as morfoespécies dominantes foram Thymoites sp. 2 e Lygarina sp. Aranhas de teia representaram 61% da abundância total de aranhas e 17 espécies, enquanto aranhas caçadoras, 49% e 15 espécies. Como esperado, densidades de indivíduos e de espécies de ambas construtoras de teia e caçadoras foram maiores em substrato complex...

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Section: Discussionmentioning

confidence: 82%

Spider community responds to litter complexity: insights from a small-scale experiment in an exotic pine stand

Podgaiski

Rodrigues

2017

Iheringia, Sér. Zool.

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“…Although Araneae are often used as indicators (Platen 2003, Coote et al 2013, we found their abundance only slightly increasing with age. Analogously, Barsoum et al (2014) found that Araneae and Carabidae diversity showed no differences between monoculture pine and monoculture oak stands, as well as Spitzer et al (2008), who investigated the effects of stand openness on carabids, arachnids and myriapodsisopods in lowland deciduous woodland. In a boreal forest context, Niemela et al (1996) found that populations of Araneae, Formicidae and Carabidae showed an increasing trend only after the first 20 years.…”

Section: Discussionmentioning

confidence: 95%

Arthropod diversity in pure oak forests of coppice origin in northern Thrace (Turkey)

Keten¹,

Beşkardeş²,

Kumbaşlı³

et al. 2015

iForest

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© iForest -Biogeosciences and Forestry IntroductionTurkey is one of the world's richest countries in terms of the variety of oak species and their extent. Oak forests cover vast areas in Northern Thrace (European Part of Turkey): 656 004 ha, or 27.7% of the entire land area, of which oak forests make up 71.7% of forest lands (Makineci et al. 2011). In the past, most oak forests were managed as coppice via clear cuttings on 20-year rotations. However, the intensive use of the forest led to its long-term degradation. Therefore, Turkish General Directorate of Forestry abandoned such practice in the last decade, and now promotes conversion to high forest and natural regeneration from seeds.Arthropods are often used as ecological indicators of ecosystem integrity (King et al. 1998, Tscharntke et al. 1998, Rainio & Niemelä 2003, Langor & Spence 2006, Maleque et al. 2009). They play essential roles in ecosystems such as pollination, seed dispersal, nutrient cycling, and they serve as predators of pests and prey for valued vertebrates (Engelmann 1961, van Straalen 1998. Arthropods also have short generation times and respond quickly to ecological changes (Work et al. 2002). Habitat structure influences arthropod diversity and abundance (Spitzer et al. 2008). In general, systems that are more diverse, permanent, isolated and managed with low intensity are associated with high arthropod community diversity (Akbulut et al. 2003). Increasing plant diversity has been suggested as a means of increasing insect diversity (Symstad et al. 2000) and thus lowering insect herbivore damage through decreased host plant density, increased interspecific competition among pest and non-pest species and improved natural enemy communities (Stamps & Linit 1998).Arthropod species richness generally increases with stand age , Bolger et al. 2000, and richness and density of herbivorous insects are influenced by forest age (Jeffries et al. 2006). However, there is limited knowledge about arthropod diversity during the conversion of coppices to high oak forests and the early stages of succession of coppice oak forests in Turkey. In the present study, we hypothesized that arthropod richness, abundance and diversity at coppice oak sites increased with stand age. The objectives of our study were to: (1) identify differences in forest characteristics among forest stand types; (2) characterize differences in arthropod richness, diversity, and abundance among forest stand types, and (3) relate invertebrate taxa to method of capture and to forest stand characteristics. Materials and methods Study sitesThis study was carried out in pure oak stands growing at five different sites (Catalca, Demirkoy, Igneada, Kirklareli and Vize) in the Northern Thrace, Turkey (Fig. 1). Sites were coppice-originated forests, but currently are being converted to high forest. Climate (precipitation, temperature and wa-© SISEF http://www.sisef.it/iforest/ 615 iForest 8: 615-623

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“…Carabid communities inhabiting conifer forests are poor compared to those in deciduous or mixed forests (Oxbrough et al, 2016). The carabid communities in European coniferous forests have been extensively studied and consist of the genera Abax, Calathus, Carabus, Cychrus, Leistus, Loricera, Molops, Nebria, Notiophilus, Patrobus, Pseudoophonus, Pterostichus and Trechus (Jukes et al, 2001;Magura et al, 2002;Koivula et al, 2004;Saint-Germain et al, 2005;Gongalsky et al, 2006;Barsoum et al, 2014;Johansson et al, 2016;Langraf et al, 2017). The genera Pseudoophonus, Pterostichus, Calathus and Trechus have already been shown to be seed predators .…”

Section: Efficiency Of Predation In the Open And Conifer Seed Mortalitymentioning

confidence: 99%

Ground beetles (Coleoptera: Carabidae) as predators of conifer seeds

et al. 2019

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Martinková, Z., Koprdová, S., Kulfan, J., Zach, P., Honěk, A., 2019. Ground beetles (Coleoptera: Carabidae) as predators of conifer seeds. Folia Oecologica, 46: 37-44.Many species of ground beetles (Coleoptera: Carabidae) are important predators of seeds. While the consumption of herb seeds has been intensively studied, little attention has been paid to the consumption of seeds of gymnosperm plants. Here, we determined the consumption of seeds of six coniferous species by four common carabid species and compared carabid preference for conifer and selected common angiosperm weed seed species. In no-choice experiments, the large carabid species Pseudoophonus rufipes preferentially consumed the seeds of Picea abies, Larix decidua and Pinus sylvestris. Pinus sylvestris was also preferred by another large carabid, Pterostichus melanarius. The smaller carabids Harpalus affinis and H. rubripes consumed conifer seeds reluctantly. The intensity of seed consumption by carabids decreased with increasing seed size.In choice experiments, both of the large carabid species preferred the small conifer seeds of P. sylvestris and L. decidua over herb seeds of similar size (Dipsacus fullonum, Galeopsis speciosa, Polygonum lapathifolium). Carabids may prefer conifer seeds because of their soft seed coats, regardless of their chemical protections. Postdispersal predation of seeds by carabids may be an important mortality factor in some conifer species.

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Ground-dwelling spider (Araneae) and carabid beetle (Coleoptera: Carabidae) community assemblages in mixed and monoculture stands of oak (Quercus robur L./Quercus petraea (Matt.) Liebl.) and Scots pine (Pinus sylvestris L.)

Cited by 37 publications

References 42 publications

Spider community responds to litter complexity: insights from a small-scale experiment in an exotic pine stand

Spider community responds to litter complexity: insights from a small-scale experiment in an exotic pine stand

Arthropod diversity in pure oak forests of coppice origin in northern Thrace (Turkey)

Ground beetles (Coleoptera: Carabidae) as predators of conifer seeds

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