Cristin-resultat-ID: 1591498
Sist endret: 18. oktober 2018 10:45
NVI-rapporteringsår: 2018
Resultat
Vitenskapelig artikkel
2018

The devil is in the detail: nonadditive and context-dependent plant population responses to increasing temperature and precipitation. Plant demography in a warmer & wetter climate

Bidragsytere:
  • Joachim Paul Töpper
  • Eric Pierre F Meineri
  • Siri Lie Olsen
  • Knut Rydgren
  • Olav Skarpaas og
  • Vigdis Vandvik

Tidsskrift

Global Change Biology
ISSN 1354-1013
e-ISSN 1365-2486
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2018
Publisert online: 2018
Volum: 24
Hefte: 10
Sider: 4657 - 4666
Open Access

Importkilder

Scopus-ID: 2-s2.0-85051859531

Klassifisering

Vitenskapsdisipliner

Matematikk og naturvitenskap

Beskrivelse Beskrivelse

Tittel

The devil is in the detail: nonadditive and context-dependent plant population responses to increasing temperature and precipitation. Plant demography in a warmer & wetter climate

Sammendrag

In climate‐change ecology, simplistic research approaches may yield unrealistically simplistic answers to often more complicated problems. In particular, the complexity of vegetation responses to global climate change begs a better understanding of the impacts of concomitant changes in several climatic drivers, how these impacts vary across different climatic contexts, and of the demographic processes underlying population changes. Using a replicated, factorial, whole‐community transplant experiment, we investigate regional variation in demographic responses of plant populations to increased temperature and/or precipitation. Across four perennial forb species and twelve sites, we found strong responses to both temperature and precipitation change. Changes in population growth rates were mainly due to changes in survival and clonality. In three of the four study species, the combined increase in temperature and precipitation reflected non‐additive, antagonistic interactions of the single climatic changes for population growth rate and survival, while the interactions were additive and synergistic for clonality. This disparity affects the persistence of genotypes, but also suggests that the mechanisms behind the responses of the vital rates differ. In addition, survival effects varied systematically with climatic context, with wetter and warmer+wetter transplants showing less positive or more negative responses at warmer sites. The detailed demographic approach yields important mechanistic insights into how concomitant changes in temperature and precipitation affect plants, which makes our results generalizable beyond the four study species. Our comprehensive study design illustrates the power of replicated field experiments in disentangling the complex relationships and patterns that govern climate change impacts across real‐world species and landscapes.

Bidragsytere

Joachim Paul Töpper

  • Tilknyttet:
    Forfatter
    ved Institutt for biovitenskap ved Universitetet i Bergen
  • Tilknyttet:
    Forfatter
    ved Institutt for miljø- og naturvitskap ved Høgskulen på Vestlandet
  • Tilknyttet:
    Forfatter
    ved NINA Bergen ved Norsk institutt for naturforskning

Eric Pierre F Meineri

  • Tilknyttet:
    Forfatter
    ved Aix-Marseille Université
  • Tilknyttet:
    Forfatter
    ved Institutt for biovitenskap ved Universitetet i Bergen

Siri Lie Olsen

  • Tilknyttet:
    Forfatter
    ved NINA Oslo ved Norsk institutt for naturforskning

Knut Rydgren

  • Tilknyttet:
    Forfatter
    ved Institutt for miljø- og naturvitskap ved Høgskulen på Vestlandet

Olav Skarpaas

  • Tilknyttet:
    Forfatter
    ved NINA Oslo ved Norsk institutt for naturforskning
  • Tilknyttet:
    Forfatter
    ved Geo-økologisk forskningsgruppe ved Universitetet i Oslo
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