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Using an Ecosystem Approach to complement protection schemes based on organism-level endpoints.

Clare Bradshaw1, Lawrence Kapustka2, Lawrence Barnthouse3

  • 1Department of Ecology, Environment and Plant Sciences, Stockholm University, 10691 Stockholm, Sweden.

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|June 16, 2014
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Summary

Current radiation safety for wildlife uses organism-level data, missing ecosystem impacts. An Ecosystem Approach is needed to protect ecological structures and functions, aligning with international goals for environmental radiation protection.

Keywords:
Complex ecological systemsEcological dynamicsIndirect effectsNon-linearitySpecies interactionsWildlife

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Area of Science:

  • Ecological sciences
  • Radiation protection
  • Environmental risk assessment

Background:

  • International radiation protection goals for ecological resources focus on population, community, and ecosystem levels.
  • Current radiation safety for non-human organisms relies on organism-level endpoints, misaligned with overarching protection goals.
  • Ecosystem structure and function can exhibit non-linear changes from stressors, unpredictable from individual organism effects.

Purpose of the Study:

  • To summarize arguments for adopting an Ecosystem Approach in radiation safety for ecological resources.
  • To identify challenges and next steps for implementing an Ecosystem Approach.
  • To complement existing organism-level endpoints with ecosystem-level considerations.

Main Methods:

  • Review of ecological science principles regarding emergent properties and ecosystem dynamics.
  • Summary of arguments presented by a previous International Union of Radioecology (IUR) Task Group.
  • Identification of practical implementation challenges and future research directions.

Main Results:

  • Current radiation safety approaches for non-human biota are not aligned with stated ecological protection goals.
  • Ecosystems possess interactive dynamics and emergent properties crucial for essential goods and services.
  • An Ecosystem Approach is proposed as a necessary addition to radiation safety tools.

Conclusions:

  • An Ecosystem Approach is essential for effective radiation protection of ecological resources at multiple levels.
  • Developing and implementing this approach requires addressing identified challenges.
  • This approach will enhance the protection of ecosystem services vital to human societies.