BEL-VENNER, Marie-Claude; FOUCHET, David; SIBERCHICOT, Aurélie; BOULANGER, Vincent; CAIGNARD, Thomas; THIBAUDON, Michel; OLIVER, Gilles; NICOLAS, Manuel; GAILLARD, Jean‐michel; DELZON, Sylvain; VENNER, Samuel

doi:10.1111/ele.13171

Métadonnées

Licence d’utilisation du document

BEL-VENNER, Marie-Claude
Ecologie quantitative et évolutive des communautés [LBBE]
Université de Lyon
Université Claude Bernard Lyon 1 [UCBL]

FOUCHET, David
Université de Lyon

SIBERCHICOT, Aurélie
Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 [LBBE]
Université Claude Bernard Lyon 1 [UCBL]

Langue

Article de revue

Ce document a été publié dans

Ecology Letters. 2019, vol. 22, n° 1, p. 98-107

Wiley

Résumé en anglais

In many perennial wind-pollinated plants, the dynamics of seed production is commonly known to be highly fluctuating from year to year and synchronised among individuals within populations. The proximate causes of such seeding dynamics, called masting, are still poorly understood in oak species that are widespread in the northern hemisphere, and whose fruiting dynamics dramatically impacts forest regeneration and biodiversity. Combining long-term surveys of oak airborne pollen amount and acorn production over large-scale field networks in temperate areas, and a mechanistic modelling approach, we found that the pollen dynamics is the key driver of oak masting. Mechanisms at play involved both internal resource allocation to pollen production synchronised among trees and spring weather conditions affecting the amount of airborne pollen available for reproduction. The sensitivity of airborne pollen to weather conditions might make oak masting and its ecological consequences highly sensitive to climate change.< Réduire

Mots clés

Quercus spp.

pollen limitation

Mots clés en anglais

Masting

resource budget model

spring weather conditions

DOI

http://dx.doi.org/10.1111/ele.13171

Project ANR

PROJET AVENIR LYON SAINT-ETIENNE - ANR-11-IDEX-0007
Dynamiques eco-évolutives des maladies infectieuses - ANR-11-LABX-0048

Origine

Importé de hal

Unités de recherche

BioGeCo (Biodiversité Gènes & Communautés) - UMR 1202