ChagnonSimardBoudreau2021

Reference

Chagnon, C., Simard, M., Boudreau, S. (2021) Patterns and determinants of lichen abundance and diversity across a subarctic to arctic latitudinal gradient. Journal of Biogeography, 48(11):2742-2754. (Scopus )

Abstract

Aim: Lichens are a major component of Arctic biodiversity. However, they appear vulnerable to climate change, as they are exposed to warmer temperatures and increased competition with vascular plants. Our study aims to evaluate lichen cover, species richness, functional diversity and community composition among the dominant vegetation types along a 640-km latitudinal gradient, and to identify environmental determinants related to patterns in lichen communities. Location: From subarctic (56°N) to arctic (62°N) Nunavik (Québec, Canada). Taxon: Lichens. Methods: We characterized macrolichen communities at the species level in 42 sites across a latitudinal gradient, and identified latitudinal trends in lichen cover, species richness and functional diversity. Using linear models and distance-based redundancy analysis, we investigated the effect of climate, vegetation, topography and soil characteristics on lichen communities. Results: Lichen cover and species richness were the lowest at high latitudes, while functional diversity increased with increasing latitude. Vegetation types and surficial deposits were strongly related to lichen cover and richness. However, these factors did not influence functional diversity, which was mainly driven by climatic conditions. Main conclusion: Our results highlight the importance of vegetation structure in lichen communities and corroborate the negative relationship between vascular plant abundance and lichen abundance and species richness. While we found no influence of vegetation structure on lichen functional diversity, further studies using targeted functional traits are needed to accurately investigate the impact of ongoing changes in northern vegetation on ecosystem functioning. © 2021 John Wiley & Sons Ltd

EndNote Format

You can import this reference in EndNote.

BibTeX-CSV Format

You can import this reference in BibTeX-CSV format.

BibTeX Format

You can copy the BibTeX entry of this reference below, orimport it directly in a software like JabRef .

@ARTICLE { ChagnonSimardBoudreau2021,
    AUTHOR = { Chagnon, C. and Simard, M. and Boudreau, S. },
    JOURNAL = { Journal of Biogeography },
    TITLE = { Patterns and determinants of lichen abundance and diversity across a subarctic to arctic latitudinal gradient },
    YEAR = { 2021 },
    NUMBER = { 11 },
    PAGES = { 2742-2754 },
    VOLUME = { 48 },
    ABSTRACT = { Aim: Lichens are a major component of Arctic biodiversity. However, they appear vulnerable to climate change, as they are exposed to warmer temperatures and increased competition with vascular plants. Our study aims to evaluate lichen cover, species richness, functional diversity and community composition among the dominant vegetation types along a 640-km latitudinal gradient, and to identify environmental determinants related to patterns in lichen communities. Location: From subarctic (56°N) to arctic (62°N) Nunavik (Québec, Canada). Taxon: Lichens. Methods: We characterized macrolichen communities at the species level in 42 sites across a latitudinal gradient, and identified latitudinal trends in lichen cover, species richness and functional diversity. Using linear models and distance-based redundancy analysis, we investigated the effect of climate, vegetation, topography and soil characteristics on lichen communities. Results: Lichen cover and species richness were the lowest at high latitudes, while functional diversity increased with increasing latitude. Vegetation types and surficial deposits were strongly related to lichen cover and richness. However, these factors did not influence functional diversity, which was mainly driven by climatic conditions. Main conclusion: Our results highlight the importance of vegetation structure in lichen communities and corroborate the negative relationship between vascular plant abundance and lichen abundance and species richness. While we found no influence of vegetation structure on lichen functional diversity, further studies using targeted functional traits are needed to accurately investigate the impact of ongoing changes in northern vegetation on ecosystem functioning. © 2021 John Wiley & Sons Ltd },
    AFFILIATION = { Department of Biology, Université Laval, Québec, QC, Canada; Centre for Northern Research, Université Laval, Québec, QC, Canada; Department of Geography and Centre for Forest Research, Université Laval, Québec, QC, Canada },
    AUTHOR_KEYWORDS = { arctic; climate warming; functional diversity; latitudinal gradient; lichen cover; lichen species richness; Nunavik; subarctic },
    DOI = { 10.1111/jbi.14233 },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116044499&doi=10.1111%2fjbi.14233&partnerID=40&md5=0a69900e2aacf81e2bc8fd82689fcc34 },
}

********************************************************** *************************** FRQNT ************************ **********************************************************

Le CEF est un
regroupement stratégique du

********************************************************** *********************** Infolettre *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ***************** Pub - Colloque du CEF ****************** **********************************************************

********************************************************** ***************** Formations et Écoles d'été ****************** **********************************************************

Formations et Écoles

********************************************************** *************** Pub - Colloque Mycorhize ***************** **********************************************************

********************************************************** ********* Mémoire CEF Changements Climatiques ************ **********************************************************

**********************************************************

***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

  • Voici une liste (clairement incomplète) des packages R axés sur l'écologie! N'hésitez pas à ajouter à la liste

Voir les autres...