History and environment shape species pools and community diversity in European beech forests

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  • Borja Jimenez-Alfaro, Masaryk Univ, Masaryk University Brno, Dept Bot & Zool
  • ,
  • Marco Girardello
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  • Milan Chytry, Masaryk Univ, Masaryk University Brno, Dept Bot & Zool
  • ,
  • Jens-Christian Svenning
  • Wolfgang Willner, Univ Vienna, University of Vienna, Dept Bot & Biodivers Res
  • ,
  • Jean-Claude Gegout, AgroParisTech, AgroParisTech, Universite Paris Saclay (ComUE), Institut National de la Recherche Agronomique (INRA), INRA, LERFoB
  • ,
  • Emiliano Agrillo, Sapienza Univ Rome, Sapienza University Rome, Dept Environm Biol
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  • Juan Antonio Campos, Univ Basque Country, University of Basque Country, UPV EHU, Dept Plant Biol & Ecol
  • ,
  • Ute Jandt, Martin Luther Univ Halle Wittenberg, Martin Luther University Halle Wittenberg, Geobotany & Bot Garden, Inst Biol
  • ,
  • Zygmunt Kacki, Univ Wroclaw, University of Wroclaw, Bot Garden, Dept Vegetat Ecol
  • ,
  • Urban Silc, Inst Biol, National Institute of Biology - Slovenia, ZRC SAZU
  • ,
  • Michal Slezak, Slovak Acad Sci, Slovak Academy of Sciences, Inst Bot, Plant Sci & Biodivers Ctr
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  • Lubomir Tichy, Masaryk Univ, Masaryk University Brno, Dept Bot & Zool
  • ,
  • Ioannis Tsiripidis, Aristotle Univ Thessaloniki, Aristotle University of Thessaloniki, Sch Biol, Dept Bot
  • ,
  • Pavel Dan Turtureanu, Babes Bolyai Univ, Babes Bolyai University from Cluj, Alexandru Borza Bot Garden
  • ,
  • Mariana Ujhazyova, Tech Univ Zvolen, Technical University Zvolen, Fac Ecol & Environm Sci, Dept Appl Ecol
  • ,
  • Thomas Wohlgemuth, Swiss Fed Res Inst WSL, Swiss Federal Institute for Forest, Snow & Landscape Research

A central hypothesis of ecology states that regional diversity influences local diversity through species-pool effects. Species pools are supposedly shaped by large-scale factors and then filtered into ecological communities, but understanding these processes requires the analysis of large datasets across several regions. Here, we use a framework of community assembly at a continental scale to test the relative influence of historical and environmental drivers, in combination with regional or local species pools, on community species richness and community completeness. Using 42,173 vegetation plots sampled across European beech forests, we found that large-scale factors largely accounted for species pool sizes. At the regional scale, main predictors reflected historical contingencies related to post-glacial dispersal routes, whereas at the local scale, the influence of environmental filters was predominant. Proximity to Quaternary refugia and high precipitation were the main factors supporting community species richness, especially among beech forest specialist plants. Models for community completeness indicate the influence of large-scale factors, further suggesting community saturation as a result of dispersal limitation or biotic interactions. Our results empirically demonstrate how historical factors complement environmental gradients to provide a better understanding of biodiversity patterns across multiple regions.

OriginalsprogEngelsk
TidsskriftNature Ecology & Evolution
Vol/bind2
Nummer3
Sider (fra-til)483-490
Antal sider8
DOI
StatusUdgivet - mar. 2018

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