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Participatory hackathon to determine ecological relevant endpoints for a neurotoxin to aquatic and benthic invertebrates.
Environ Sci Pollut Res Int
March 2024
Institute of Environmental Sciences, Leiden University, P.O. Box 9518, 2300, RA, Leiden, The Netherlands.
The aim of this study is twofold: i) to determine innovative yet sensitive endpoints for sulfoxaflor and ii) to develop best practices for innovative teaching in ecotoxicology. To this end, a group of 52 MSc students participated in an environmental hackathon, during which they did creative toxicity testing on 5 freshwater invertebrate species: Daphnia magna, Chironomus riparius, Asellus aquaticus, Lymnaea stagnalis, and Anisus vortex. Involving the students in an active learning environment stimulated increased creativity and productivity.
View Article and Find Full Text PDFModeling vortex swarming in Daphnia.
Bull Math Biol
February 2007
ETH Zurich, Chair of Systems Design, Kreuzplatz 5, CH-8032 Zurich, Switzerland.
Based on experimental observations in Daphnia, we introduce an agent-based model for the motion of single and swarms of animals. Each agent is described by a stochastic equation that also considers the conditions for active biological motion. An environmental potential further reflects local conditions for Daphnia, such as attraction to light sources.
View Article and Find Full Text PDFVortex formation by active agents as a model for Daphnia swarming.
Phys Rev E Stat Nonlin Soft Matter Phys
June 2006
Fachbereich Physik, Philipps-Universität Marburg, Renthof 6, D-35032 Marburg, Germany.
We propose a self-propelled particle model for the swarming of Daphnia that takes into account mutual repulsion and attraction to a center. Surprisingly, a vortex is formed only for an intermediate strength of propulsion. The phase diagram and the transitions between states with and without a vortex are analyzed, and the nature of the phase boundaries is discussed based on a linear stability analysis of the motion of individual swimmers.
View Article and Find Full Text PDFInto the Daphnia vortex.
Chaos
December 2004
Center for Neurodynamics, University of Missouri at St. Louis, St. Louis, Missouri 63121, USA.
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