Valentin Ștefan

Scientific Guest

Affiliations

Martin Luther University Halle-Wittenberg, Institute of Biology, Halle (Saale), Germany

Postal address

Puschstrasse 4
04103 Leipzig
Germany

Room: A.02.11

Contact details

iDiv Publications

Publications 2025

Lanuza, Jose B., Knight, Tiffany M., Montes-Perez, Nerea, Glenny, Will, Acuña, Paola, Albrecht, Matthias, Artamendi, Maddi, Badenhausser, Isabelle, Bennett, Joanne M., Biella, Paolo, Bommarco, Ricardo, Cappellari, Andree, Castro, Sílvia, Clough, Yann, Colom, Pau, Costa, Joana, Cyrille, Nathan, de Manincor, Natasha, Dominguez-Lapido, Paula, Dominik, Christophe, Dupont, Yoko L., Feldmann, Reinart, Felten, Emeline, Ferrero, Victoria, Fiordaliso, William, Fisogni, Alessandro, Fitzpatrick, Úna, Galloni, Marta, Gaspar, Hugo, Gazzea, Elena, Goia, Irina, Gómez-Martínez, Carmelo, González-Estévez, Miguel A., González-Varo, Juan Pedro, Grass, Ingo, Hadrava, Jiří, Hautekèete, Nina, Hederström, Veronica, Heleno, Ruben, Hervias-Parejo, Sandra, Heuschele, Jonna M., Hoiss, Bernhard, Holzschuh, Andrea, Hopfenmüller, Sebastian, Iriondo, José M., Jauker, Birgit, Jauker, Frank, Jersáková, Jana, Kallnik, Katharina, Karise, Reet, Kleijn, David, Klotz, Stefan, Krausl, Theresia, Kühn, Elisabeth, Lara-Romero, Carlos, Larkin, Michelle, Laurent, Emilien, Lázaro, Amparo, Librán-Embid, Felipe, Liu, Yicong, Lopes, Sara, López-Núñez, Francisco, Loureiro, João, Magrach, Ainhoa, Mänd, Marika, Marini, Lorenzo, Mas, Rafel Beltran, Massol, François, Maurer, Corina, Michez, Denis, Molina, Francisco P., Morente-López, Javier, Mullen, Sarah, Nakas, Georgios, Neuenkamp, Lena, Nowak, Arkadiusz, O\’Connor, Catherine J., O\’Rourke, Aoife, Öckinger, Erik, Olesen, Jens M., Opedal, Øystein H., Petanidou, Theodora, Piquot, Yves, Potts, Simon G., Power, Eileen F., Proesmans, Willem, Rakosy, Demetra, Reverté, Sara, Roberts, Stuart P. M., Rundlöf, Maj, Russo, Laura, Schatz, Bertrand, Scheper, Jeroen, Schweiger, Oliver, Serra, Pau Enric, Siopa, Catarina, Smith, Henrik G., Stanley, Dara, Ştefan, Valentin, Steffan-Dewenter, Ingolf, Stout, Jane C., Sutter, Louis, Švara, Elena Motivans, Świerszcz, Sebastian, Thompson, Amibeth, Traveset, Anna, Trefflich, Annette, Tropek, Robert, Tscharntke, Teja, Vanbergen, Adam J., Vilà, Montserrat, Vujić, Ante, White, Cian, Wickens, Jennifer B., Wickens, Victoria B., Winsa, Marie, Zoller, Leana, Bartomeus, Ignasi (2025): EuPPollNet: A European Database of Plant-Pollinator Networks. Global Ecology and Biogeography

Rozario, Kevin, Shaw, Taylor, Marselle, Melissa, Oh, Rachel Rui Ying, Schröger, Erich, Giraldo Botero, Mateo, Frey, Julian, Ștefan, Valentin, Müller, Sandra, Scherer-Lorenzen, Michael, Jaroszewicz, Bogdan, Verheyen, Kris, Bonn, Aletta (2025): Perceived biodiversity: Is what we measure also what we see and hear?. People and Nature

Ștefan, Valentin, Workman, Aspen, Cobain, Jared C., Rakosy, Demetra, Knight, Tiffany M. (2025): Utilising affordable smartphones and open-source time-lapse photography for pollinator image collection and annotation. Journal of Pollination Ecology

Stark, Thomas, Wurm, Michael, Ştefan, Valentin, Wolf, Felicitas, Taubenböck, Hannes, Knight, Tiffany M. (2025): Utilizing CNNs for classification and uncertainty quantification for 15 families of European fly pollinators. PLoS ONE

Ștefan, Valentin, Stark, Thomas, Wurm, Michael, Taubenböck, Hannes, Knight, Tiffany M. (2025): Successes and limitations of pretrained YOLO detectors applied to unseen time-lapse images for automated pollinator monitoring. Scientific Reports

Publications 2023

Stark, Thomas, Ştefan, Valentin, Wurm, Michael, Spanier, Robin, Taubenböck, Hannes, Knight, Tiffany M. (2023): YOLO object detection models can locate and classify broad groups of flower-visiting arthropods in images. Scientific Reports

Publications 2022

Rakosy, Demetra, Motivans, Elena, Ştefan, Valentin, Nowak, Arkadiusz, Świerszcz, Sebastian, Feldmann, Reinart, Kühn, Elisabeth, Geppert, Costanza, Venkataraman, Neeraja, Sobieraj-Betlińska, Anna, Grossmann, Anita, Rojek, Wiktoria, Pochrząst, Katarzyna, Cielniak, Magdalena, Gathof, Anika Kirstin, Baumann, Kevin, Knight, Tiffany Marie (2022): Intensive grazing alters the diversity, composition and structure of plant-pollinator interaction networks in Central European grasslands. PLoS ONE

Scotti, Alberto, Jacobsen, Dean, Ștefan, Valentin, Tappeiner, Ulrike, Bottarin, Roberta (2022): Small Hydropower—Small Ecological Footprint? A Multi-Annual Environmental Impact Analysis Using Aquatic Macroinvertebrates as Bioindicators. Part 1: Effects on Community Structure. Frontiers in Environmental Science

Publications 2021

Motivans Švara, Elena, Ştefan, Valentin, Sossai, Esther, Feldmann, Reinart, Aguilon, Dianne Joy, Bontsutsnaja, Anna, E-Vojtkó, Anna, Kilian, Isabel C., Lang, Piret, Mõtlep, Marilin, Prangel, Elisabeth, Viljur, Mari-Liis, Knight, Tiffany Marie, Neuenkamp, Lena (2021): Effects of different types of low-intensity management on plant-pollinator interactions in Estonian grasslands. Ecology and Evolution

Thompson, Amibeth, Ștefan, Valentin, Knight, Tiffany M. (2021): Oilseed Rape Shares Abundant and Generalized Pollinators with Its Co-Flowering Plant Species. Insects

Publications 2020

Bennett, Joanne M., Steets, Janette A., Burns, Jean H., Burkle, Laura A., Vamosi, Jana C., Wolowski, Marina, Arceo-Gómez, Gerardo, Burd, Martin, Durka, Walter, Ellis, Allan G., Freitas, Leandro, Li, Junmin, Rodger, James G., Ştefan, Valentin, Xia, Jing, Knight, Tiffany Marie, Ashman, Tia-Lynn (2020): Land use and pollinator dependency drives global patterns of pollen limitation in the Anthropocene. Nature Communications

Publications 2018

Bennett, Joanne M., Thompson, Amibeth, Goia, Irina, Feldmann, Reinart, Ştefan, Valentin, Bogdan, Ana, Rakosy, Demetra, Beloiu, Mirela, Biro, Inge-Beatrice, Bluemel, Simon, Filip, Milena, Madaj, Anna-Maria, Martin, Alina, Passonneau, Sarah, Kalisch, Denisa Paula, Scherer, Gwydion, Knight, Tiffany Marie (2018): A review of European studies on pollination networks and pollen limitation, and a case study designed to fill in a gap. AoB Plants

Pardini, E. A., Parsons, L. S., Stefan, Valentin, Knight, Tiffany Marie (2018): GLMM BACI environmental impact analysis shows coastal dune restoration reduces seed predation on an endangered plant. Restoration Ecology