@article {1425, title = {[Letter to Ludwig D{\"o}derlein]}, year = {1898}, month = {08/08/1898}, publisher = {Archives de la Ville et de l{\textquoteright}Eurom{\'e}tropole de Strasbourg}, address = {Strasbourg, Grand Est, France}, abstract = {

Recommended citation: Verhoeff, C. W. (1898, August 8). [Letter to Ludwig D\öderlein]. Archives de la Ville et de l\’Eurom\étropole de Strasbourg, Strasbourg, Grand Est, France.

}, author = {Verhoeff, Carl Wilhelm} } @article {1206, title = {Pitfall trap design affects the capture efficiency of harvestmen (Opiliones) and millipedes (Diplopoda)}, journal = {Ecology and Evolution}, volume = {11}, year = {2021}, month = {28/06/2021}, pages = {9864{\textendash} 9875}, abstract = {

Abstract Pitfall trapping is one of the standard methods used for the capture of ground-active arthropod groups. Despite being frequently used, the standardization of this method is problematic due to the large range of combinations of the individual parameters of pitfall traps with varying efficacy under different environmental conditions. We evaluated the effects of the trap diameter, the fixing fluid, and their combination on the capture efficacy for harvestmen (Opiliones) and millipedes (Diplopoda). We used pitfall traps with three different diameters: 3\ cm, 5\ cm, and 12\ cm, filled with three types of fixing fluids (saturated fluid of NaCl, 10:1 mixture of 70\% ethanol and glycerol and 4\% formaldehyde). Altogether, 90 traps representing nine combinations of trap diameters and fixing fluid were placed on a mown meadow in spring and autumn intervals for a total of 45\ days. We sampled 1,488 individuals representing 11 harvestmen species and 881 individuals representing 11 millipede species. Large (d\ =\ 12\ cm) and medium (5\ cm) traps captured significantly more millipede species and individuals than the small-sized traps (3\ cm). The same effect was observed for harvestmen species richness, whereas the medium traps (d\ =\ 5\ cm) captured the highest mean activity of harvestmen. By analyzing the differences in the body sizes of the studied arthropods in relation to the trap diameter and fluid, we found that larger traps, as well as traps filled with NaCl solution, captured larger harvestmen more frequently than the other trap types. Our results revealed that the combination of larger traps (d\ =\ 5 and 12\ cm) and formaldehyde was most effective in the capture of both studied groups. However, the disadvantage of formaldehyde is its toxicity.

}, keywords = {body size, capture rate, fixing fluid, method selection, trap diameter}, issn = {2045-7758}, doi = {https://doi.org/10.1002/ece3.7820}, url = {https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.7820}, author = {Sta{\v s}iov, Slavom{\'\i}r and {\v C}iliak, Marek and Wiezik, Michal and Svitok, Marek and Wiezikov{\'a}, Adela and Diviakov{\'a}, Andrea} } @article {901, title = {Biological and chemical indicators of soil condition in Bulgarian agro-ecosystems}, year = {2017}, abstract = {

This report presents the results of the mapping and assessment of soil biodiversity and its functions in cropland dominated landscapes in Bulgaria. We summarize the motivation for the assessment, highlighting the importance of assessing biodiversity-mediated processes in the soil, to complement soil condition indicators based on physical and chemical properties of soils. Soil organisms are involved in several critical ecological processes that mediate various benefits associated to cropland productivity such as soil organic matter formation, organic matter decomposition and nutrient circulation, symbiotic functions with plants that promote nutrient and water uptake, and pest and disease control through natural enemies.

}, doi = {10.13140/RG.2.2.11771.87842}, url = {https://www.researchgate.net/publication/340095492_Biological_and_chemical_indicators_of_soil_condition_in_Bulgarian_agro-ecosystems_Editor}, author = {Rusch, Graciela and Blaalid, Rakel and Dahle, Sondre and Dedov, Ivailo and Elshishka, Milka and Foss{\o}y, Frode and Lazarova, Stela and Mladenov, Alexander and Peneva, Vlada and Radoslavov, Georgi and Stoyanov, Ivailo and Vagalinski, Boyan and Yordanov, Yavor} }