Sammanfattning

Abstract Panarchy, a model of dynamic systems change at multiple, interconnected spatiotemporal scales, allows assessing how management influences ecological processes and resilience. We assess how liming, a management form to counteract anthropogenic acidification, influences scale-specific temporal fluctuation frequencies of benthic invertebrates and phytoplankton assemblages in lakes. We also assess whether these fluctuations correlate with proxies of liming (Ca:Mg ratios) to quantify scale-specific management effects. Using an ecosystem experiment and monitoring data, time series analyses (1998-2019) revealed significant multiscale temporal (and thus Panarchy) structure for littoral invertebrates across limed and reference lakes. Such patterns were inconsistent for sublittoral invertebrates and phytoplankton. When significant panarchy structure was found, Ca:Mg ratios correlated with only a few of the identified temporal fluctuation frequencies across limed and reference lakes. This suggests that liming effects become diluted in the managed lakes. The lack of manifestations of liming across the independent temporal fluctuation patterns suggest that this lake management form fails to create and enforce cross-scale interactions, a crucial component of ecological resilience. This interpretation supports liming as a mitigation effort rather than a tool to restore acidified lakes to a self-organizing system equivalent of circumneutral references.

Nyckelord

panarchy; resilience; lakes; management; liming; coerced regimes

Publicerad i

Utgivare: SSRN

SLU författare

• Angeler, David

  • Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
    
  • Deakin University
  • The PRODEO Institute
  • University of Nebraska-Lincoln

Globala målen

SDG15 Skydda, återställa och främja ett hållbart nyttjande av landbaserade ekosystem, hållbart bruka skogar, bekämpa ökenspridning, hejda och vrida tillbaka markförstöringen samt hejda förlusten av biologisk mångfald


UKÄ forskningsämne

Ekologi
Miljövetenskap


Publikationens identifierare

DOI: https://doi.org/10.2139/ssrn.4225054

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/119150