TY - GEN A1 - Fless, Friederike A1 - Graf, Bernhard A1 - Dally, Ortwin A1 - Franke, Ute A1 - Gerbich, Christine A1 - Lengyel, Dominik A1 - Knaut, Matthias A1 - Näser, Claudia A1 - Savoy, Bénédicte A1 - Steinmüller, Laura Katharina A1 - Steudtner, Katharina A1 - Taschner, Moritz A1 - Toulouse, Catherine A1 - Weber, Stefan T1 - Authenticity and Communication T2 - eTOPOI Journal for Ancient Studies N2 - Authenticity is not an absolute and constant quality inherent in an object or an experience; it is constructed in the process of research. Actors inscribe and attribute it to both material objects and subjective processes like communication and consumption. This article from the research group seeks on the one hand to reflect on the historical scope of action and action patterns among actors from various disciplines between the conflicting priorities of authentication and communication, and on the other to find ways to visualize and operationalize attribution processes through joint reflection. When we look at both history and the discussions fifty years after the Venice Charter, its idea to hand on historic monuments “in the full richness of their authenticity” has turned into an abundance of vibrant action and decision-making. KW - Visualisation Y1 - 2016 UR - http://journal.topoi.org/index.php/etopoi/article/view/263 SN - 2192-2608 VL - 6 SP - 479 EP - 524 ER - TY - GEN A1 - Kowarik, Carmen A1 - Martin-Creuzburg, Dominik A1 - Mathers, Kate L. A1 - Weber, Christine A1 - Robinson, Christopher T. T1 - Stream degradation affects aquatic resource subsidies to riparian ground-dwelling spiders T2 - Science of The Total Environment N2 - Freshwater systems have undergone drastic alterations during the last century, potentially affecting cross-boundary resource transfers between aquatic and terrestrial ecosystems. One important connection is the export of biomass by emergent aquatic insects containing omega-3 polyunsaturated fatty acids (PUFAs), especially eicosapentaenoic acid (EPA), that is scarce in terrestrial systems. Because of taxon-specific differences in PUFA content and functional traits, the contribution of different insect groups should be considered, in addition to total biomass export. In this context, one important trait is the emergence mode. Stoneflies, in contrast to other aquatic insects, crawl to land to emerge instead of flying directly from the water surface, making them accessible to ground-dwelling predators. Because stoneflies are especially susceptible to environmental change, stream degradation might cause a mismatch of available and required nutrients, particularly for ground-dwelling predators. In this study, we estimated emergent biomass and EPA export along two streams with different levels of habitat degradation. The EPA content in aquatic insects did not differ with different degrees of habitat degradation and total biomass export in spring was with 7.9 ± 9.6 mg m−2 day−1 in the degraded and 7.3 ± 8.5 mg m−2 day−1 in the natural system, also unaffected. However, habitat degradation substantially altered the contribution of crawling emergence to the total export in spring, with no biomass export by stoneflies at the most degraded sites. The EPA content in ground-dwelling spiders was correlated with emergent stonefly biomass, making up only 16.0 ± 6.2 % of total fatty acids at sites with no stonefly emergence, but 27.3 ± 3.0 % at sites with highest stonefly emergence. Because immune function in ground-dwelling spiders has been connected to EPA levels, reduced crawling emergence might impact spider fitness. Functional traits, like emergence mode as well as nutritional quality, should be considered when assessing the effects of stream degradation on adjacent terrestrial ecosystems. Y1 - 2023 U6 - https://doi.org/10.1016/j.scitotenv.2022.158658 SN - 1879-1026 VL - 855 ER -