Drivers of vegetative dormancy across herbaceous perennial plant species
Richard P. Shefferson , Tiiu Kull , Michael J. Hutchings , Marc-Andre Selosse , Hans Jacquemyn , Kimberly M. Kellett , Eric S. Menges , Richard B. Primack , Juha Tuomi , Kirsi Alahuhta , Sonja Hurskainen , Helen M. Alexander , Derek S. Anderson , Rein Brys , Emilia Brzosko , Slavomir Dostálik , Katharine Gregg , Zdeněk Ipser , Anne Jäkäläniemi , Jana Jersáková , W. Dean Kettle , Melissa K. McCormick , Ana Mendoza , Michael T. Miller , Asbjørn Moen , Dag-Inge Øien , Ülle Püttsepp , Mélanie Roy , Nancy Sather , Nina Sletvold , Zuzana Štípková , Kadri Tali , Robert J. Warren II , Dennis F. Whigham
AbstractVegetative dormancy, that is the temporary absence of aboveground growth for ≥ 1 year, is paradoxical, because plants cannot photosynthesise or flower during dormant periods. We test ecological and evolutionary hypotheses for its widespread persistence. We show that dormancy has evolved numerous times. Most species displaying dormancy exhibit life‐history costs of sprouting, and of dormancy. Short‐lived and mycoheterotrophic species have higher proportions of dormant plants than long‐lived species and species with other nutritional modes. Foliage loss is associated with higher future dormancy levels, suggesting that carbon limitation promotes dormancy. Maximum dormancy duration is shorter under higher precipitation and at higher latitudes, the latter suggesting an important role for competition or herbivory. Study length affects estimates of some demographic parameters. Our results identify life historical and environmental drivers of dormancy. We also highlight the evolutionary importance of the little understood costs of sprouting and growth, latitudinal stress gradients and mixed nutritional modes.
|Journal series||Ecology Letters, ISSN 1461-023X, (A 50 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||Adaptation, Asteraceae, bet-hedging, demography, herbivory, latitudinal gradient, Ophioglossaceae, Orchidaceae, stress|
|Score||= 50.0, 28-01-2020, ArticleFromJournal|
|Publication indicators||= 3; : 2018 = 3.79; : 2018 = 8.699 (2) - 2018=11.576 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.