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Balancing Risk and Resilience: Which Plant Traits Should Inform Managed Relocation Species Selection?

Thomas W M Nuhfer1,2, Bethany A Bradley1,2,3

  • 1Organismic and Evolutionary Biology Graduate Program, University of Massachusetts, Amherst, Massachusetts, USA.

Global Change Biology
|March 26, 2025
PubMed
Summary
This summary is machine-generated.

Managed relocation aids ecological resilience under climate change. Risk assessments should prioritize traits for species spread and impact, not just establishment, to ensure successful restoration outcomes.

Keywords:
assisted migrationecological restorationinvasionmanaged relocationplant traitsrisk assessment

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Area of Science:

  • Ecology
  • Conservation Biology
  • Climate Change Adaptation

Background:

  • Managed relocation is a strategy to enhance ecological resilience against climate change, often applied to plant community restoration.
  • Assessing risks of introduced species involves evaluating traits associated with invasiveness.
  • Traits linked to invasiveness may also be crucial for successful restoration and managed relocation, particularly for population establishment.

Purpose of the Study:

  • To determine which plant traits should inform species selection for managed relocation.
  • To review invasion and restoration ecology literature, pairing functional, ecological, and biogeographic traits with invasion or restoration success stages.
  • To identify traits that balance restoration potential with ecological risk.

Main Methods:

  • Literature review of invasion and restoration ecology studies.
  • Analysis of plant functional, ecological, and biogeographic traits in relation to invasion and restoration.
  • Comparison of traits associated with population establishment, spread, and impact.

Main Results:

  • Significant overlap exists between invasiveness and restoration traits during population establishment.
  • Divergence in traits occurs during the spread and impact stages of invasion.
  • Current managed relocation protocols often focus on establishment traits, potentially hindering success.

Conclusions:

  • Managed relocation species selection should emphasize traits promoting long-distance spread and impact, rather than solely establishment.
  • Risk assessments for managed relocation should focus on traits linked to invasive spread or impacts, not those essential for restoration.
  • A balanced risk assessment approach is crucial for successful managed relocation as a climate adaptation strategy, avoiding overly restrictive candidate limitations.