Carabid communities on heather moorlands in northeast Scotland: The consequences of grazing pressure for community diversity

Gardner, Sarah; Hartley, Susan; Davies, Althea; Palmer, Stephen C. F.

doi:10.1016/s0006-3207(96)00148-6

Cited by 85 publications

(57 citation statements)

References 10 publications

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“…Pitfall traps are a widely used sampling method to catch active ground dwelling invertebrates in grasslands and heathlands (Gardner et al 1997;Haysom et al 2004;Lyons et al 2017). This method estimates relative invertebrate activity rather than an absolute measure of density, reflecting species abundance and movement rates (Greenslade 1964;Mazia et al 2006).…”

Section: Epigeal Spider Samplingmentioning

confidence: 99%

Habitat associations of epigeal spiders in upland calcareous grassland landscapes: the importance for conservation

et al. 2017

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Upland calcareous grassland landscapes are typically comprised of a matrix of calcareous grassland, acid grassland and limestone heath plant communities. This matrix of habitats is produced by a combination of underlying geology, climate and management. These landscapes are typically managed through grazing, with management targeted to maintain particular plant communities in the calcareous grassland habitat, whilst patches of acid grassland and limestone heath are not targeted by conservation management. The biodiversity value of acid grassland and limestone heath patches within the calcareous grassland matrix are unknown. This study provides the first assessment of their biodiversity value by examining aspects of epigeal spider diversity supported by these non-target habitat patches in comparison to calcareous grassland. Spiders were sampled in each habitat from April to August 2014 using pitfall traps across three upland regions in Great Britain. Spider species assemblages were distinct between limestone heath and both grassland types. Distinction in species assemblages are likely due to differences in vegetation structure and microclimate, e.g., humidity, degree of shade. Each habitat type supported several rare species (e.g., Jacksonella falconeri, Agyneta subtilis) revealing the contribution Communicated by David Hawksworth. Electronic supplementary materialThe online version of this article (https://doi.org/10.1007/ s10531-017-1488-4) contains supplementary material, which is available to authorized users. to spider fauna. The distinct spider species assemblage and presence of rare species in limestone heath patches demonstrate their importance in the upland calcareous grassland matrix. This study highlights the value of monitoring biodiversity in non-target habitats within a habitat matrix alongside those that are actively targeted by management.

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Section: Epigeal Spider Samplingmentioning

confidence: 99%

Habitat associations of epigeal spiders in upland calcareous grassland landscapes: the importance for conservation

et al. 2017

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“…Thiele, 1977Suominen et al, 2003;Melis et al, 2006, 2007Gardner et al, 1997Melis et al, 2007Melis et al, 2006Côté et al, 2004 50 Sasa nipponica Cervus nippon 2003Yokoyama et al, 1996Yokoyama and Shibata, 1998;Itô and Hino, 2005;Furusawa et al, 2005 5 Itô andFurusawa et al, 2005 II. A new closely related species, N. tenuicaulis, was described from Mt.…”

mentioning

confidence: 99%

Relationships between Browsing on Dwarf Bamboo (Sasa nipponica) by Sika Deer and the Structure of Ground Beetle (Coleoptera: Carabidae) Assemblage

Ueda¹,

Hino²,

Itô³

2008

J. Jpn. For. Soc.

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111 119. An overabundance of Sika deer Cervus nippon at Mt. Ôdaigahara, in west-central Japan has necessitated the introduction of exclusion fences to protect forest decline from excessive feeding damage. However, the effect of these exclusion fences on the biodiversity of arthropods within the protected areas has not been investigated. In this study we examined the relationships between the volume of dwarf bamboo Sasa nipponica , the major forage for the deer, on associated with browsing by deer and the structure of ground beetle assemblage. Both inside and outside of the exclusion fences, pitfall traps were setup in plots that had been assigned treatments of either no treatment control or artificial clipping of dwarf bamboo. Ground sticky traps were also set up in each plot to sample the abundance of small animals as the diet of ground beetles. Bamboo volume did not reltate to abundance, species richness, or diversity of the ground beetle assemblage. The abundance of the most dominant beetle species, Leptocarabus kumagaii, increased positively in response to both bamboo volume and the abundance of Orthopterans. The second most dominant species, Pterostichus fujitai, did not relate to bamboo volume, but decreased in abundance in relative to the propotions of open canopy. The third most species, Pterostichus microcephalus, decreased in abundance relative to bamboo volume, but increased positively in response to the abundance of Collembolans, Dipterans, and Hymenopterans. These results suggested that reduction of bamboo volume by browsing of deer did not affect the diversity of ground beetle aseemblage but affected its structure.

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“…The significance of this parameter has been already described in literature. Gardner et al (1997), studying the consequences of grazing pressure on carabids on heather moorlands in northeast Scotland, detected a strong influenced of soil organic content. In Welsh peatland biotopes the nutrient status and saturation of the substrate were most important with respect to carabid assemblages (Holmes et al, 1993).…”

Section: Discussionmentioning

confidence: 99%

Mowing Intensity Influences Degree of Changes in Carabid Beetle Assemblages

Schwerk¹,

Dymitryszyn²

2017

Appl. Ecol. Env. Res.

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Abstract.Mowing measures are frequently used as a tool for species conservation. However, mowing intensity as well as ecological characteristics of different sites may have an influence on the respective species or assemblages. Based on a BACI study design we tested if the effect of mowing on carabid assemblages is more pronounced with a higher intensity of the mowing measures, and if the results are influenced by differences in environmental characteristics between individual study sites. Based on 2650 carabid individuals belonging to 43 species we demonstrated that an intensification of mowing intensity resulted in an increased effect on the carabid coenoses. While assemblages from study sites mown once in the year were located closer to those from unmown sites, assemblages from study sites mown twice in the year were clearly separated in ordination analysis. However, some environmental variables, as shown by plant indicator values, accounted for a comparatively high amount of the variance. The study confirms that in the context of using mowing as a measure for nature conservation the mowing intensity has to be taken into account, but also variation in environmental factors.

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Carabid communities on heather moorlands in northeast Scotland: The consequences of grazing pressure for community diversity

Cited by 85 publications

References 10 publications

Habitat associations of epigeal spiders in upland calcareous grassland landscapes: the importance for conservation

Habitat associations of epigeal spiders in upland calcareous grassland landscapes: the importance for conservation

Relationships between Browsing on Dwarf Bamboo (Sasa nipponica) by Sika Deer and the Structure of Ground Beetle (Coleoptera: Carabidae) Assemblage

Mowing Intensity Influences Degree of Changes in Carabid Beetle Assemblages

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