Eutrophication decreases ecological resilience by reducing species diversity and altering functional traits of submerged macrophytes

© 2023 John Wiley & Sons Ltd..

Positive feedback is key to producing alternative stable states and largely determines ecological resilience in response to external perturbations. Understanding the positive feedback mechanisms in macrophyte-dominated lakes is crucial for resilience-based management and restoration. Based on the field investigation of submerged macrophyte communities in 35 lakes in China, we found that morphological complexity (MC) and morphological plasticity (MP) are correlated with the stoichiometric homeostasis of phosphorus (HP ) and are related to ecosystem structure, functioning, and stability. We also found that the positive feedback strength of lakes dominated by macrophytes is biomass- and diversity-dependent. Eutrophication can decrease the community biomass by decreasing community MC, MP, and HP and the species diversity through low-light availability, ultimately decreasing the positive feedback strength and resilience of clear water states. We argue that functional traits and species diversity should be considered to build more resilient ecosystems in future changing environment scenarios.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:29

Enthalten in:

Global change biology - 29(2023), 17 vom: 01. Sept., Seite 5000-5013

Sprache:

Englisch

Beteiligte Personen:

Cheng, Chaoyue [VerfasserIn]
Chen, Jun [VerfasserIn]
Su, Haojie [VerfasserIn]
Chen, Jianfeng [VerfasserIn]
Rao, Qingyang [VerfasserIn]
Yang, Jun [VerfasserIn]
Chou, Qingchuan [VerfasserIn]
Wang, Lantian [VerfasserIn]
Deng, Xuwei [VerfasserIn]
Xie, Ping [VerfasserIn]

Links:

Volltext

Themen:

Ecosystem resilience
Eutrophication
Functional traits
Journal Article
Regime shift
Submerged macrophytes

Anmerkungen:

Date Revised 01.08.2023

published: Print-Electronic

Citation Status Publisher

doi:

10.1111/gcb.16872

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM35929510X