Drivers of vegetative dormancy across herbaceous perennial plant species

. 2018 May ; 21 (5) : 724-733. [epub] 20180325

Jazyk angličtina Země Velká Británie, Anglie Médium print-electronic

Typ dokumentu časopisecké články, práce podpořená grantem, Research Support, U.S. Gov't, Non-P.H.S.

Perzistentní odkaz   https://www.medvik.cz/link/pmid29575384

Vegetative 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.

Archbold Biological Station Venus FL USA

Biology Department Boston University Boston MA USA

Daskabát Olomouc Czech Republic

Department of Biology KU Leuven Leuven Belgium

Department of Biology of Ecosystems Faculty of Science University of South Bohemia České Budějovice Czech Republic

Department of Biology SUNY Buffalo State Buffalo NY USA

Department of Biology University of Turku Turku Finland

Department of Biology West Virginia Wesleyan College Buckhannon West Virginia USA

Department of Ecology and Evolutionary Biology University of Kansas Lawrence KS USA

Department of Ecology and Genetics University of Oulu Oulu Finland

Department of Ecology and Genetics Uppsala University Uppsala Sweden

Department of Natural History NTNU University Museum Trondheim Norway

Department of Natural Resources St Paul MN USA

Department of Plant Taxonomy and Nature Conservation University of Gdansk Gdansk Poland

Estonian University of Life Sciences Tartu Estonia

Global Change Research Institute Czech Academy of Science Brno Czech Republic

Institut Systématique Evolution Biodiversité Muséum national d'Histoire naturelle CNRS Sorbonne Université EPHE 57 rue Cuvier CP39 75005 Paris France

Institute of Biology University of Bialystok Bialystok Poland

Instituto de Ecologia Universidad Nacional Autonoma de Mexico Ciudad Universitario UNAM Mexico City Mexico

Kansas Biological Survey University of Kansas Lawrence KS USA

Laboratoire Evolution et Diversité Biologique Université Paul Sabatier CNRS Toulouse France

LGL Limited Sidney BC Canada

Odum School of Ecology University of Georgia Athens GA USA

Organization for Programs in Environmental Sciences University of Tokyo Meguro ku Tokyo Japan

Research Institute for Nature and Forest Brussels Belgium

School of Life Sciences University of Sussex Falmer Brighton Sussex BN1 9QG UK

Smithsonian Environmental Research Center Edgewater MD USA

Citace poskytuje Crossref.org

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Dryad
10.5061/dryad.m543580

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