A plant–pollinator metanetwork along a habitat fragmentation gradient

verfasst von

Felipe Miguel Librán-Embid, Ingo Grass, Carine Emer, Cristina Ganuza, Teja Tscharntke

Abstract

To understand how plant–pollinator interactions respond to habitat fragmentation, we need novel approaches that can capture properties that emerge at broad scales, where multiple communities engage in metanetworks. Here we studied plant–pollinator interactions over 2 years on 29 calcareous grassland fragments selected along independent gradients of habitat size and surrounding landscape diversity of cover types. We associated network centrality of plant–pollinator interactions and grassland fragments with their ecological and landscape traits, respectively. Interactions involving habitat specialist plants and large-bodied pollinators were the most central, implying that species with these traits form the metanetwork core. Large fragments embedded in landscapes with high land cover diversity exhibited the highest centrality; however, small fragments harboured many unique interactions not found on larger fragments. Intensively managed landscapes have reached a point in which all remaining fragments matter, meaning that losing any further areas may vanish unique interactions with unknown consequences for ecosystem functioning.

Organisationseinheit(en)

Institut für Geobotanik

Externe Organisation(en)

Julius-Maximilians-Universität Würzburg
Universität Hohenheim
Georg-August-Universität Göttingen
Universidade Paulista
Universidade de Pernambuco

Typ

Artikel

Journal

Ecology letters

Band

24

Seiten

2700-2712

Anzahl der Seiten

13

ISSN

1461-023X

Publikationsdatum

11.11.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Ökologie, Evolution, Verhaltenswissenschaften und Systematik

Ziele für nachhaltige Entwicklung

SDG 15 – Lebensraum Land

Elektronische Version(en)

https://doi.org/10.1111/ele.13892 (Zugang: Offen)