More salt, please: global patterns, responses and impacts of foliar sodium in grasslands.

Adaptation, Physiological Animals Grassland Herbivory Nitrogen Plants Sodium Soil
Biogeography Nutrient Network (NutNet) herbivory nitrogen, phosphorus, potassium, micronutrients plant taxonomy

Journal

Ecology letters
ISSN: 1461-0248
Titre abrégé: Ecol Lett
Pays: England
ID NLM: 101121949

Informations de publication

Date de publication:
Jul 2019
Historique:
received: 19 11 2018
revised: 19 03 2019
accepted: 21 03 2019
pubmed: 11 5 2019
medline: 8 8 2019
entrez: 11 5 2019
Statut: ppublish

Résumé

Sodium is unique among abundant elemental nutrients, because most plant species do not require it for growth or development, whereas animals physiologically require sodium. Foliar sodium influences consumption rates by animals and can structure herbivores across landscapes. We quantified foliar sodium in 201 locally abundant, herbaceous species representing 32 families and, at 26 sites on four continents, experimentally manipulated vertebrate herbivores and elemental nutrients to determine their effect on foliar sodium. Foliar sodium varied taxonomically and geographically, spanning five orders of magnitude. Site-level foliar sodium increased most strongly with site aridity and soil sodium; nutrient addition weakened the relationship between aridity and mean foliar sodium. Within sites, high sodium plants declined in abundance with fertilisation, whereas low sodium plants increased. Herbivory provided an explanation: herbivores selectively reduced high nutrient, high sodium plants. Thus, interactions among climate, nutrients and the resulting nutritional value for herbivores determine foliar sodium biogeography in herbaceous-dominated systems.

Identifiants

DOI: 10.1111/ele.13270 PMID: 31074933
pubmed: 31074933
doi: 10.1111/ele.13270
doi:

Substances chimiques

Soil 0
Sodium 9NEZ333N27
Nitrogen N762921K75

Types de publication

Letter

Langues

eng

Pagination

1136-1144

Subventions

Organisme : National Science Foundation Research Coordination Network
ID : NSF-DEB-1042132
Organisme : Long Term Ecological Research
ID : NSF-DEB-1234162
Organisme : Institute on the Environment
ID : DG-0001-13

Informations de copyright

© 2019 John Wiley & Sons Ltd/CNRS.

Auteurs

E T Borer (ET)

Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN, 55108, USA.

E M Lind (EM)

Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN, 55108, USA.

J Firn (J)

Queensland University of Technology (QUT), School of Earth, Environmental and Biological Sciences, Science and Engineering Faculty, Brisbane, Qld., 4001, Australia.

E W Seabloom (EW)

Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN, 55108, USA.

T M Anderson (TM)

Wake Forest University, Department of Biology, 049 Winston Hall, Winston-Salem, NC, 27109, USA.

E S Bakker (ES)

Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, 6708 PB, Wageningen, The Netherlands.

L Biederman (L)

Department of Ecology, Evolution, and Organismal Biology, Iowa State University, 251 Bessey Hall, Ames, Iowa, 50010, USA.

K J La Pierre (KJ)

Smithsonian Environmental Research Center, 647 Contees Wharf Road, Edgewater, MD, 21037, USA.

A S MacDougall (AS)

Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada, N1G2W1.

J L Moore (JL)

School of Biological Sciences, Monash University, Vic, 3800, Australia.

A C Risch (AC)

Swiss Federal Institute for Forest, Snow and Landscape Research, Zuercherstrasse 111, 8903, Birmensdorf, Switzerland.

M Schutz (M)

Swiss Federal Institute for Forest, Snow and Landscape Research, Zuercherstrasse 111, 8903, Birmensdorf, Switzerland.

C J Stevens (CJ)

Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, UK.

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Classifications MeSH

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questionsmedicales.fr › Phénomènes physiologiques › Alimentation et nutrition › Phénomènes physiologiques nutritionnels › Comportement alimentaire › Herbivorie › More salt, please: global patterns, responses...
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