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Related Experiment Video

Updated: Jul 29, 2025

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Light pollution: a landscape-scale issue requiring cross-realm consideration.

Mariana Mayer-Pinto1, Theresa M Jones2, Stephen E Swearer3

  • 1Centre for Marine Science and Innovation, Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Science, University of New South Wales, Sydney, NSW 2052, Australia.

UCL Open. Environment
|May 25, 2023
PubMed
Summary

Artificial light at night (ALAN) impacts ecosystems across terrestrial, marine, and freshwater realms. Current light pollution management must integrate cross-realm connectivity for ecosystem resilience.

Keywords:
ALANadaptive managementartificial light at nightecological connectivitylight pollutionmulti-disciplinary

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Area of Science:

  • Ecology
  • Environmental Science
  • Conservation Biology

Background:

  • Ecosystems are interconnected through ecological, biogeochemical, and physical processes.
  • Artificial light at night (ALAN) is a pervasive global stressor impacting diverse organisms and habitats across multiple environmental realms.
  • Existing light pollution management strategies often overlook the critical connectivity between these realms.

Purpose of the Study:

  • To explore the cross-realm impacts of artificial light at night (ALAN).
  • To propose a framework for integrated, cross-realm management of light pollution.
  • To highlight the importance of interdisciplinary collaboration for effective ALAN mitigation.

Main Methods:

  • Review of existing literature on ALAN impacts.
  • Identification of mechanisms through which ALAN affects multiple realms.
  • Case study analysis of cross-realm ALAN impacts.
  • Development of a conceptual framework for cross-realm management.

Main Results:

  • ALAN impacts cross multiple realms through species with multi-realm life cycles, altered cross-boundary species interactions, and effects on transitional ecosystems (e.g., mangroves, estuaries).
  • Three primary pathways for ALAN cross-realm impacts were identified.
  • A framework for cross-realm ALAN management was proposed, addressing current challenges and solutions.

Conclusions:

  • Effective management of light pollution requires a holistic, cross-realm approach that acknowledges ecosystem interconnectedness.
  • Strengthening professional networks across disciplines and realms is crucial for integrated ALAN management.
  • Addressing ALAN's multi-realm impacts is essential for maintaining ecosystem resilience and biodiversity.