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Effects of warming depend on germination strategies and developmental stage in the alpine herb Oreomyrrhis eriopoda
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  • Annisa Satyanti,
  • Toton Liantoro,
  • Morgan Thomas,
  • Teresa Neeman,
  • Adrienne Nicotra,
  • Lydia Guja
Annisa Satyanti
Australian National University
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Toton Liantoro
Australian National University
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Morgan Thomas
Australian National University
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Teresa Neeman
Australian National University
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Adrienne Nicotra
Australian National University
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Lydia Guja
CSIRO
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Abstract

Global warming is already affecting plant phenology, growth and reproduction. A wide range of evidence indicates warming effects on reproductive and vegetative traits, as well as phenology, but seldom do studies assess these traits in concert and across the whole of a plant's life cycle, particularly in wild species. Further, while there is evidence that these effects vary between species little is known about the extent of within-species variation for plant persistence under future warming scenarios. We assessed trait variation in response to warming in Oreomyrrhis eriopoda, an Australian native montane herb, in which within-species variation in germination strategy and growth characteristics has been demonstrated. We quantified associations between developmental trajectories and population-level variation in germination timing and examined whether the next-generation traits are altered by maternal growth conditions. Warming effects were expressed in different traits during different developmental stages. The effect of warming varied as a function of germination strategy, but germination strategy itself was conserved across generations. Thus, we conclude that understand the response of wild species to warming takes a whole-of-life perspective and attention to ecologically significant patterns of within species variation.

Peer review status:POSTED

03 Jul 2020Submitted to Plant, Cell & Environment
07 Jul 2020Assigned to Editor
07 Jul 2020Submission Checks Completed