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Articles by Norbert Helm
Rising plant extinction rates on European mountain summits
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Editor’s summary Abstract Rates and temporal trends of local extinctions and their relationship to climatic trends Declining cover predicts local extinctions Species are more prone to local extinctions toward their lower range margin and in communities undergoing stronger thermophilization Discussion Acknowledgments Supplementary Materials References and Notes Information & Authors Metrics & Citations View Options References Figures Tables Media Share This article has 0 eLetter .
By Shanshan Lian, Anastasia A Minervina, Johannes Wessely, Kryštof Chytrý, Andreas Gattringer, Johannes Hausharter, Norbert Helm, Karl Hülber, Dietmar Moser, Otar Abdaladze, Christopher Andrews, Elena Barni, José-Luis Benito-Alonso, Raphael S. von Büren, Michele Carbognani, Pau Carnicero, Valter Di Cecco, Philippe Choler, Jan Dick, Pieter De Frenne, Dany Ghosn, Khatuna Gigauri, Bente J. Graae, Debora Barolin, Rosa Fernández-Calzado
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Science Magazine
Verified
Mesoclimatic origin affects alpine plant germination but not its plasticity
Introduction Anthropogenic climate change is continuously increasing global temperatures which consequentially impact plant species (IPCC 2023). There are three possibilities for species to cope with global warming, which are not mutually exclusive. First, species can track the climatic conditions they are adapted to through migration. Second, they may adapt genetically, or third, they can respond plastically to new climatic conditions (Bernatchez et al. 2024).
Widespread thermophilization but weak link to climate warming in Europe’s summit plant communities
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Abstract Recent changes in alpine vegetation are often attributed to climate warming, particularly community composition shifts towards more warmth-associated species, or thermophilization. Here we assess the link between thermophilization and warming across 53 European mountain summits.
By Johannes Hausharter, Johannes Wessely, Norbert Helm, Kryštof Chytrý, Karl Hülber, Dietmar Moser, Andrea Lamprecht, Jonathan Lenoir, Andreas Kollert, Andreas Mayr, Martin Rutzinger, Philippe Choler, Pieter De Frenne, Jonas Lembrechts, Chris Andrews, José-Luis Benito-Alonso, Eva M. Cañadas, Michele Carbognani, Pau Carnicero, Michele Di Musciano, Jan Dick, Juan Jimenez, Juan Jiménez Verified, Juan Lorite, Simone Orsenigo, Christophe Randin, Christian Rixen, Patrick Saccone, Angela Stanisci, Jean-Paul Theurillat, Tudor-Mihai Ursu, Thomas Vanneste, Sonja Wipf, Manuela Winkler, Harald Pauli, Stefan Dullinger, Katharina Kagerl, Otar Abdaladze, Emmanuel Corcket, Khatuna Gigauri, Andreas Hilpold, Panagiotis Nyktas, Andrej Palaj, Martina Petey, Ilektra Remoundou, Raphael S. von Büren
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Nature
Verified
Limited impact of microtopography on alpine plant distribution
Introduction Climate change is a strong driver of changes to biodiversity and ecosystems worldwide (Scheffer et al. 2001, Warren et al. 2018, Díaz et al. 2019). Despite its recognized importance, our understanding of these changes and our ability to predict them are still limited (Pereira et al. 2010, Urban et al. 2016). One example of the consequent uncertainty concerns plant diversity above the treeline.
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