Search Results - "SCHÄFER, Ralf B"

Fungicides: An Overlooked Pesticide Class? by Zubrod, Jochen P, Bundschuh, Mirco, Arts, Gertie, Brühl, Carsten A, Imfeld, Gwenaël, Knäbel, Anja, Payraudeau, Sylvain, Rasmussen, Jes J, Rohr, Jason, Scharmüller, Andreas, Smalling, Kelly, Stehle, Sebastian, Schulz, Ralf, Schäfer, Ralf B

“…Fungicides are indispensable to global food security and their use is forecasted to intensify. Fungicides can reach aquatic ecosystems and occur in surface…”
Get full text

Pesticides reduce regional biodiversity of stream invertebrates by Beketov, Mikhail A., Kefford, Ben J., Schäfer, Ralf B., Liess, Matthias

“…The biodiversity crisis is one of the greatest challenges facing humanity, but our understanding of the drivers remains limited. Thus, after decades of studies…”
Get full text

Large Scale Risks from Agricultural Pesticides in Small Streams by Szöcs, Eduard, Brinke, Marvin, Karaoglan, Bilgin, Schäfer, Ralf B

“…Small streams are important refuges for biodiversity. In agricultural areas, they may be at risk from pesticide pollution. However, most related studies have…”
Get full text

Organic chemicals jeopardize the health of freshwater ecosystems on the continental scale by Malaj, Egina, von der Ohe, Peter C., Grote, Matthias, Kühne, Ralph, Mondy, Cédric P., Usseglio-Polatera, Philippe, Brack, Werner, Schäfer, Ralf B.

“…Organic chemicals can contribute to local and regional losses of freshwater biodiversity and ecosystem services. However, their overall relevance regarding…”
Get full text

Salinisation of rivers: An urgent ecological issue by Cañedo-Argüelles, Miguel, Kefford, Ben J., Piscart, Christophe, Prat, Narcís, Schäfer, Ralf B., Schulz, Claus-Jürgen

“…Secondary salinisation of rivers and streams is a global and growing threat that might be amplified by climate change. It can have many different causes, like…”
Get full text

Assessing the Mixture Effects in In Vitro Bioassays of Chemicals Occurring in Small Agricultural Streams during Rain Events by Neale, Peta A, Braun, Georg, Brack, Werner, Carmona, Eric, Gunold, Roman, König, Maria, Krauss, Martin, Liebmann, Liana, Liess, Matthias, Link, Moritz, Schäfer, Ralf B, Schlichting, Rita, Schreiner, Verena C, Schulze, Tobias, Vormeier, Philipp, Weisner, Oliver, Escher, Beate I

“…Rain events may impact the chemical pollution burden in rivers. Forty-four small streams in Germany were profiled during several rain events for the presence…”
Get full text

Maximising the clustering coefficient of networks and the effects on habitat network robustness by Heer, Henriette, Streib, Lucas, Schäfer, Ralf B, Ruzika, Stefan

“…The robustness of networks against node failure and the response of networks to node removal has been studied extensively for networks such as transportation…”
Get full text

Transcriptomic sequencing data illuminate insecticide-induced physiological stress mechanisms in aquatic non-target invertebrates by Brasseur, Marie V., Leese, Florian, Schäfer, Ralf B., Schreiner, Verena C., Mayer, Christoph

“…Pesticides are major agricultural stressors for freshwater species. Exposure to pesticides can disrupt the biotic integrity of freshwater ecosystems and impair…”
Get full text

The footprint of pesticide stress in communities—Species traits reveal community effects of toxicants by Liess, Matthias, Schäfer, Ralf B., Schriever, Carola A.

“…The predictive power of the current risk-assessment framework for pesticides remains uncertain. This is because any extrapolation towards landscape-level…”
Get full text

Preparing GIS data for analysis of stream monitoring data: The R package openSTARS by Kattwinkel, Mira, Szöcs, Eduard, Peterson, Erin, Schäfer, Ralf B, Nedkov, Stoyan

“…Stream monitoring data provides insights into the biological, chemical and physical status of running waters. Additionally, it can be used to identify drivers…”
Get full text

Metal Exposure and Sex Shape the Fatty Acid Profile of Midges and Reduce the Aquatic Subsidy to Terrestrial Food Webs by Pietz, Sebastian, Kainz, Martin J., Schröder, Henning, Manfrin, Alessandro, Schäfer, Ralf B., Zubrod, Jochen P., Bundschuh, Mirco

“…Aquatic micropollutants can be transported to terrestrial systems and their consumers by emergent aquatic insects. However, micropollutants, such as metals,…”
Get full text

Thresholds for the Effects of Pesticides on Invertebrate Communities and Leaf Breakdown in Stream Ecosystems by Schäfer, Ralf B, von der Ohe, Peter Carsten, Rasmussen, Jes, Kefford, Ben J, Beketov, Mikhail A, Schulz, Ralf, Liess, Matthias

“…We compiled data from eight field studies conducted between 1998 and 2010 in Europe, Siberia, and Australia to derive thresholds for the effects of pesticides…”
Get full text

Future pesticide risk assessment: narrowing the gap between intention and reality by Schäfer, Ralf B., Liess, Matthias, Altenburger, Rolf, Filser, Juliane, Hollert, Henner, Roß-Nickoll, Martina, Schäffer, Andreas, Scheringer, Martin

Get full text

Effects of Pesticides Monitored with Three Sampling Methods in 24 Sites on Macroinvertebrates and Microorganisms by Schäfer, Ralf B, Pettigrove, Vincent, Rose, Gavin, Allinson, Graeme, Wightwick, Adam, von der Ohe, Peter C, Shimeta, Jeff, Kühne, Ralph, Kefford, Ben J

“…Grab water samples, sediment samples, and 2,2,4-trimethylpentane passive samplers (TRIMPS) were used to determine the exposure to 97 pesticides in 24 southeast…”
Get full text

A trait database of stream invertebrates for the ecological risk assessment of single and combined effects of salinity and pesticides in South-East Australia by Schäfer, Ralf B., Kefford, Ben J., Metzeling, Leon, Liess, Matthias, Burgert, Sinje, Marchant, Richard, Pettigrove, Vincent, Goonan, Peter, Nugegoda, Dayanthi

“…We compiled a database on a priori selected traits for South-East Australian freshwater macroinvertebrate families and used this data for the development of a…”
Get full text

Effects of repeated salt pulses on ecosystem structure and functions in a stream mesocosm by Cañedo-Argüelles, Miguel, Bundschuh, Mirco, Gutiérrez-Cánovas, Cayetano, Kefford, Ben J., Prat, Narcís, Trobajo, Rosa, Schäfer, Ralf B.

“…Rivers and streams affected by mining activities often receive short-term sharp salinity increases due to water-soluble stockpiled materials being washed into…”
Get full text

Should ecologists prefer model‐ over distance‐based multivariate methods? by Jupke, Jonathan F., Schäfer, Ralf B.

“…Ecological data sets often record the abundance of species, together with a set of explanatory variables. Multivariate statistical methods are optimal to…”
Get full text

The influence of season, hunting mode, and habitat specialization on riparian spiders as key predators in the aquatic-terrestrial linkage by Bollinger, Eric, Zubrod, Jochen P., Englert, Dominic, Graf, Nadin, Weisner, Oliver, Kolb, Sebastian, Schäfer, Ralf B., Entling, Martin H., Schulz, Ralf

“…Freshwater ecosystems subsidize riparian zones with high-quality nutrients via the emergence of aquatic insects. Spiders are dominant consumers of these insect…”
Get full text

How to Characterize Chemical Exposure to Predict Ecologic Effects on Aquatic Communities? by Schäfer, Ralf B, Gerner, Nadine, Kefford, Ben J, Rasmussen, Jes J, Beketov, Mikhail A, de Zwart, Dick, Liess, Matthias, von der Ohe, Peter C

“…Reliable characterization of exposure is indispensable for ecological risk assessment of chemicals. To deal with mixtures, several approaches have been…”
Get full text

Regulatory FOCUS Surface Water Models Fail to Predict Insecticide Concentrations in the Field by Knäbel, Anja, Stehle, Sebastian, Schäfer, Ralf B, Schulz, Ralf

“…The FOrum for the Co-ordination of pesticide fate models and their USe (FOCUS) exposure models are used to predict the frequency and magnitude of pesticide…”
Get full text