The Adequacy of Some Collecting Techniques for Obtaining Representative Arthropod Sample in Dry Grasslands

Abstract

The number of remarkable species on a locality is an important indicator of locality value. The ecological requirements of the rare species may help to target correct landscape management activities. Our objective was to fi nd out if standardly used capture methods for diff erent group of invertebrate are able to detect really representative composition of species including rare taxa. Our experiment was carried out at the Moravský kras Protected Landscape Area (Macošská and Vilémovická stráň slope) where secondary dry grasslands are typical for each investigated locality. We used fi ve groups of invertebrates (spiders, ground beetles, rove beetles, leaf beetles and weevils) and three capture methods (pitfall traps, sweeping on vegetation and yellow Möricke traps). Arthropods were determined and classifi ed according to their rarity. Using the three capture methods, we obtained in total 127 spider species (Areneae), 31 ground beetle species (Carabidae), 29 rove beetle species (Staphylinide), 52 leaf beetle species (Chrysomelidae) and 55 weevil species (Curculionidae). Results showed that the diff erent capture methods signifi cantly infl uenced number of detected remarkable species. It was statistically proved for spiders (P = 0.025), weevils (P = 0.038) and marginally also for rove beetles (P = 0.051). Spiders of climax (C species) and semi-natural (SN species) habitats were rather detected by pitfall traps, whereas spiders of disturbed habitats were collected by sweeping on vegetation and Möricke yellow pans eventually. Relict species of weevils (R species) were detected by pitfall traps, typical species (T species) were collected by Möricke yellow pans and expansive species (E species) were found by sweeping on vegetation.

Patterns of functional diversity of two trophic groups after canopy thinning in an abandoned coppice

“…In each compartment the same trap spacing and timing was used. Pitfall traps are able to produce a representative spider sample, also with the most ecologically important species (e.g., Niedobová and Fric 2014).…”

Soil Arthropods in Differently Used Agroecosystems Along an Ecological Gradient in Slovakia

“…They are used to monitor soil health and evaluate the sustainability of land use practices (Rüdisser et al, 2015) in differently managed ecosystems, in intensively used arable land, extensively used permanent grasslands (e.g. Niedobová and Fric, 2014;Meyer et al, 2019) or abandoned orchards (e.g. Psota and Šťastná, 2016;Štastná and Psota, 2013).…”

Spring evaluation of three sampling methods to estimate family richness and abundance of arthropods in olive groves

“…Previous studies have compared different sampling methods in different habitats (see Spafford & Lortie, 2013), such as those in Australia (Popic et al, 2013), New Zealand (Larsen et al, 2014), North America (Shapiro et al, 2014;Joshi et al, 2015), Central and North Europe (Niedobová & Fric, 2014;Rubene et al, 2015) and South America (Nemesio & Morato, 2005). However, few studies have compared their effectiveness in Mediterranean regions (Nielsen et al, 2011;Ponce et al, 2011).…”