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Alexandra Weigelt
Researcher at Leipzig University
Publications - 170
Citations - 13595
Alexandra Weigelt is an academic researcher from Leipzig University. The author has contributed to research in topics: Biodiversity & Species richness. The author has an hindex of 52, co-authored 159 publications receiving 10020 citations. Previous affiliations of Alexandra Weigelt include Max Planck Society & Lancaster University.
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Journal ArticleDOI
High plant diversity is needed to maintain ecosystem services
Forest Isbell,Vincent Calcagno,Andy Hector,John Connolly,W. Stanley Harpole,Peter B. Reich,Peter B. Reich,Michael Scherer-Lorenzen,Bernhard Schmid,David Tilman,Jasper van Ruijven,Alexandra Weigelt,Brian J. Wilsey,Erika S. Zavaleta,Michel Loreau +14 more
TL;DR: It is shown that 84% of the 147 grassland plant species studied in 17 biodiversity experiments promoted ecosystem functioning at least once, and many species are needed to maintain multiple functions at multiple times and places in a changing world.
Journal ArticleDOI
Biodiversity increases the resistance of ecosystem productivity to climate extremes
Forest Isbell,Dylan Craven,John Connolly,M. Loreau,Bernhard Schmid,Carl Beierkuhnlein,T. Martin Bezemer,Catherine L. Bonin,Helge Bruelheide,Enrica De Luca,Anne Ebeling,John N. Griffin,Qinfeng Guo,Yann Hautier,Andy Hector,Anke Jentsch,Jürgen Kreyling,Vojtěch Lanta,Peter Manning,Sebastian T. Meyer,Akira Mori,Shahid Naeem,Pascal A. Niklaus,H. Wayne Polley,Peter B. Reich,Peter B. Reich,Christiane Roscher,Eric W. Seabloom,Melinda D. Smith,Madhav P. Thakur,David Tilman,David Tilman,Benjamin F. Tracy,Wim H. van der Putten,Jasper van Ruijven,Alexandra Weigelt,Wolfgang W. Weisser,Brian J. Wilsey,Nico Eisenhauer +38 more
TL;DR: Biodiversity mainly stabilizes ecosystem productivity, and productivity-dependent ecosystem services, by increasing resistance to climate events, and restoration of biodiversity to increase it, mainly by changing the resistance of ecosystem productivity toClimate events.
Journal ArticleDOI
Bottom-up effects of plant diversity on multitrophic interactions in a biodiversity experiment
Christoph Scherber,Nico Eisenhauer,Nico Eisenhauer,Wolfgang W. Weisser,Bernhard Schmid,Winfried Voigt,Markus Fischer,Markus Fischer,Ernst Detlef Schulze,Christiane Roscher,Christiane Roscher,Alexandra Weigelt,Alexandra Weigelt,Eric Allan,Holger Bessler,Michael Bonkowski,Nina Buchmann,François Buscot,Lars W. Clement,Anne Ebeling,Anne Ebeling,Christof Engels,Stefan Halle,Ilona Kertscher,Alexandra-Maria Klein,Alexandra-Maria Klein,Robert Koller,Stephan König,Esther Kowalski,Volker Kummer,Annely Kuu,Markus Lange,Dirk Lauterbach,Cornelius Middelhoff,V. D. Migunova,Alexandru Milcu,Ramona Müller,Stephan Partsch,Jana S. Petermann,Jana S. Petermann,Carsten Renker,Carsten Renker,Tanja Rottstock,Alexander C.W. Sabais,Stefan Scheu,Jens Schumacher,Vicky M. Temperton,Teja Tscharntke +47 more
TL;DR: It is shown that plant diversity effects dampen with increasing trophic level and degree of omnivory, and the results suggest that plant Diversity has strong bottom-up effects on multitrophic interaction networks, with particularly strong effects on lower trophIC levels.
Journal ArticleDOI
Indices of plant competition
TL;DR: This essay compiles and discusses more than 50 indices that have been used in studies of plant competition, and indicates that indices have to be used in conjunction with studies of the chronology, circumstances and composition of plant associations.
Journal ArticleDOI
Plant diversity effects on soil microorganisms support the singular hypothesis.
Nico Eisenhauer,Holger Bessler,Christof Engels,Gerd Gleixner,Maike Habekost,Alexandru Milcu,Stephan Partsch,Alexander C.W. Sabais,Christoph Scherber,Sibylle Steinbeiss,Alexandra Weigelt,Wolfgang W. Weisser,Stefan Scheu +12 more
TL;DR: Supporting the singular hypothesis for plant diversity, the results suggest that plant species are unique, each contributing to the functioning of the belowground system and reinforce the need for long-term biodiversity experiments to fully appreciate consequences of current biodiversity loss for ecosystem functioning.