Titre

Glacier retreat decreases mutualistic network robustness over spacetime

Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Conti, Matteo
Auteure/Auteur
Cerretti, Pierfilippo
Auteure/Auteur
Ferrari, Andrea
Auteure/Auteur
Gabrieli, Paolo
Auteure/Auteur
Paone, Francesco
Auteure/Auteur
Polidori, Carlo
Auteure/Auteur
Sommaggio, Daniele
Auteure/Auteur
Losapio, Gianalberto
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
0906-7590
Statut éditorial
Publié
Date de publication
2024-11-05
Peer-reviewed
Oui
Langue
anglais
Résumé
Glaciers are retreating worldwide at an ever-increasing rate, exposing new ice-free areas to ecological succession. This process leads to changes in biodiversity and potentially to novel species interactions. However, we still have a limited understanding of how glacier retreat influences species interaction networks, particularly the structure and robustness of mutualistic networks. After reconstructing plant–pollinator networks along a 140-years chronosequence on a glacier foreland, we address the effects of glacier retreat on network structure and robustness. Our results show that the prevalence of different network motifs changes over spacetime, leading to a decrease of network robustness. With glacier retreat, mutualistic networks shift from highly connected with diverse specialist interactions to loosely connected with few generalist interactions. Furthermore, despite the turnover of plant species, we find that species structural roles remain constant over spacetime while depending on species identity. Our findings suggest that glacier retreat reshuffles mutualistic networks with motifs posing low robustness, leading to increased fragility. Understanding the assembly and breaking down of species interaction networks provides novel insights into the development and stability of novel, post-glacial ecological systems facing glacier extinction.
Sujets

biodiversity change

climate change

food web

interaction diversity...

pollination networks

species interactions

PID Serval
serval:BIB_205AFAE96B9D
DOI
Permalien
Open Access
Oui
Date de création
2024-11-06T13:05:25.013Z
Date de création dans IRIS
2025-05-20T16:49:01Z
Fichier(s)
En cours de chargement...
Vignette d'image
Nom

Ecography - 2024 - Conti - Glacier retreat decreases mutualistic network robustness over spacetime.pdf

Version du manuscrit

published

Licence

https://creativecommons.org/licenses/by/4.0

Taille

2.49 MB

Format

Adobe PDF

PID Serval

serval:BIB_205AFAE96B9D.P001

URN

urn:nbn:ch:serval-BIB_205AFAE96B9D7

Somme de contrôle

(MD5):55e49552c437cd752aac94f73558d6c9