Open Collections

Fraser, Lauchlan H.; Pither, Jason; Jentsch, Anke; Sternberg, Marcelo; Zobel, Martin; Askarizadeh, Diana; Bartha, Sandor; Beierkuhnlein, Carl; Bennett, Jonathan A.; Bittel, Alex; Boldgiv, Bazartseren; Boldrini, Ilsi I.; Bork, Edward; Brown, Leslie; Cabido, Marcelo; Cahill, James; Carlyle, Cameron N.; Campetella, Giandiego; Chelli, Stefano; Cohen, Ofer; Csergo, Anna-Maria; Diaz, Sandra; Enrico, Lucas; Ensing, David; Fidelis, Alessandra; Fridley, Jason D.; Foster, Bryan; Garris, Heath; Goheen, Jacob R.; Henry, Hugh A. L.; Hohn, Maria; Jouri, Mohammad Hassan; Klironomos, John; Koorem, Kadri; Lawrence-Lodge, Rachael; Long, Ruijun; Manning, Peter; Mitchell, Randall; Moora, Mari; Muller, Sandra C.; Nabinger, Carlos; Naseri, Kamal; Overbeck, Gerhard E.; Palmer, Todd M.; Parsons, Sheena; Pesek, Mari; Pillar, Valerio D.; Pringle, Robert M.; Roccaforte, Kathy; Schmidt, Amanda; Shang, Zhanhuan; Stahlmann, Reinhold; Stotz, Gisela C.; Sugiyama, Shu-ichi; Szentes, Szilard; Thompson, Don; Tungalag, Radnaakhand; Undrakhbold, Sainbileg; van Rooyen, Margaretha; Wellstein, Camilla; Wilson, J. Bastow; Zupo, Talita; Díaz, Sandra; Manning, Pete; Müller, Sandra C.; Pillar, Valério D.; Szentes, Szilárd

<b>Abstract</b><br/><jats:p>The search for predictions of species diversity across environmental gradients has challenged ecologists for decades. The humped-back model (HBM) suggests that plant diversity peaks at intermediate productivity; at low productivity few species can tolerate the environmental stresses, and at high productivity a few highly competitive species dominate. Over time the HBM has become increasingly controversial, and recent studies claim to have refuted it. Here, by using data from coordinated surveys conducted throughout grasslands worldwide and comprising a wide range of site productivities, we provide evidence in support of the HBM pattern at both global and regional extents. The relationships described here provide a foundation for further research into the local, landscape, and historical factors that maintain biodiversity.</jats:p>; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">raw plot data from globally distributed sites</h4><div class="o-metadata__file-name">fraser_plotdata.csv</br></div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">R script for within_site_GLMs_Fig2A_TableS2</h4><div class="o-metadata__file-name">within_site_GLMs_Fig2A_TableS2.R</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">R script for Table_1_analyses_FigS1</h4><div class="o-metadata__file-name">Table_1_analyses_FigS1.R</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">R script for varied_grain_analyses_FigS2</h4><div class="o-metadata__file-name">varied_grain_analyses_FigS2.R</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">R script for HBmodels_FigS3</h4><div class="o-metadata__file-name">HBmodels_FigS3.R</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">R script for max_richness_FigS4</h4><div class="o-metadata__file-name">max_richness_FigS4.R</br></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">R script for within_site_GLMs_reduced_data_Figs_S5_2B_S6</h4><div class="o-metadata__file-name">within_site_GLMs_reduced_data_Figs_S5_2B_S6.R</br></div></div>

Dataset

2021-06-01

CC0 1.0

https://doi.org/10.5683/SP2/RDSPS0

http://creativecommons.org/publicdomain/zero/1.0