Login / Signup

The importance of species addition 'versus' replacement varies over succession in plant communities after glacier retreat.

Isabel CanteraAlexis CarteronAlessia GuerrieriSilvio MartaAurélie BoninRoberto AmbrosiniFabien AnthelmeRoberto Sergio AzzoniPeter AlmondPablo Alviz GazitúaSophie Cauvy-FrauniéJorge Luis Ceballos LievanoPritam ChandMilap Chand SharmaJohn ClagueJustiniano Alejo Cochachín RapreChiara CompostellaRolando Cruz EncarnaciónOlivier DanglesAndre EgerSergey ErokhinAndrea FranzettiLudovic GiellyFabrizio GiliMauro GobbiSigmund HågvarNorine KhedimRosa Isela MenesesGwendolyn PeyreFrancesca PittinoAntoine RabatelNurai UrseitovaYan YangVitalii ZaginaevAndrea ZerboniAnaïs ZimmerPierre TaberletGuglielmina Adele DiolaiutiJerome PoulenardWilfried ThuillerMarco CaccianigaGentile Francesco Ficetola
Published in: Nature plants (2024)
The mechanisms underlying plant succession remain highly debated. Due to the local scope of most studies, we lack a global quantification of the relative importance of species addition 'versus' replacement. We assessed the role of these processes in the variation (β-diversity) of plant communities colonizing the forelands of 46 retreating glaciers worldwide, using both environmental DNA and traditional surveys. Our findings indicate that addition and replacement concur in determining community changes in deglaciated sites, but their relative importance varied over time. Taxa addition dominated immediately after glacier retreat, as expected in harsh environments, while replacement became more important for late-successional communities. These changes were aligned with total β-diversity changes, which were more pronounced between early-successional communities than between late-successional communities (>50 yr since glacier retreat). Despite the complexity of community assembly during plant succession, the observed global pattern suggests a generalized shift from the dominance of facilitation and/or stochastic processes in early-successional communities to a predominance of competition later on.
Keyphrases
  • microbial community
  • mental health
  • single molecule
  • cell free
  • circulating tumor cells
  • circulating tumor