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March 21, 2026Nature CommunicationsOpen Access

Behavioral shifts mask the success of legislation and outreach for endangered species recovery

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Authors

VBVictoria J. BakkerDDDaniel F. DoakAWAlacia Welch

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Overview

This research demonstrates reduced lead levels in California condors, suggesting that behavior changes complicate conservation efforts.

Key Points

  • The aim is to evaluate the effectiveness of recovery actions for threatened avian species, specifically focusing on California condors.
  • Analyzed the impact of lead ammunition bans and public outreach campaigns on condor mortality rates.
  • Investigated behavioral shifts in condor foraging and human shooting practices affecting lead exposure.
  • Assessed changes in blood lead levels in California condors over time.
  • Significant reductions in condor blood lead levels were observed after implementing lead bans and outreach efforts.
  • Behavioral changes in both condors and human activities contributed to increased lead exposure.
  • Despite improved lead levels, mortality rates continued to be impacted by external ecological factors.

Cite This Study

Bakker et al. (2026) studied this question.

synapsesocial.com/papers/69be38446e48c4981c678919https://doi.org/10.1038/s41467-026-69617-4
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