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<p>Public understanding is critical to the management of invasive alien species (IAS), yet national-scale cognition patterns remain unexplored. We analyzed data from TikTok and Sina Microblog to assess public cognition in China regarding three representative IAS: <i>Solidago canadensis</i>, <i>Solenopsis invicta</i>, and <i>Trachemys scripta</i>. Cognition was assessed based on three indicators: focus (high-frequency terms), associations (semantic co-occurrence), and inclinations (quantile-based sentiment). Results reveal pronounced cross-species disparities: <i>S. canadensis</i> was primarily discussed in terms of its invasiveness and agricultural utility, generating a polarized yet positively skewed inclination; <i>S. invicta</i>-related content focused on species recognition, coping measures, and ecological impacts, exhibiting a strongly negative disposition with a minority holding positive views; discussions concerning <i>T. scripta</i> addressed pet husbandry concerns and regulatory policies, indicating an intermediate yet negative-leaning valence. These patterns reflect how public cognition is shaped by species’ tangible impacts and their relevance to human daily life. Cross-platform disparities were also marked: TikTok fostered experiential, ecologically-oriented narratives highlighting ecological dominance and health impacts, whereas Sina Microblog maintained consistently positive, policy-focused discourse emphasizing agricultural utility and regulatory governance. These patterns demonstrate that TikTok facilitates personal, emotion-driven narratives, while Sina Microblog promotes institutional, solution-oriented framing, with algorithmic biases further amplifying this discursive divide. Notably, despite these thematic disparities, management strategies were underrepresented across all three species on both platforms, limiting the scope for informed and coordinated public action. We call for platform-tailored communication strategies and enhanced algorithmic transparency to strengthen public education and engagement in IAS management.</p>

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Cross-species and cross-platform disparities in public cognition of invasive alien species

  • 期刊论文

  • 发表日期：

    2026年4月21日

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  • Liyun Zhang,
  • Jie Huang,
  • Xiaofei Liu

摘要

Public understanding is critical to the management of invasive alien species (IAS), yet national-scale cognition patterns remain unexplored. We analyzed data from TikTok and Sina Microblog to assess public cognition in China regarding three representative IAS: Solidago canadensis, Solenopsis invicta, and Trachemys scripta. Cognition was assessed based on three indicators: focus (high-frequency terms), associations (semantic co-occurrence), and inclinations (quantile-based sentiment). Results reveal pronounced cross-species disparities: S. canadensis was primarily discussed in terms of its invasiveness and agricultural utility, generating a polarized yet positively skewed inclination; S. invicta-related content focused on species recognition, coping measures, and ecological impacts, exhibiting a strongly negative disposition with a minority holding positive views; discussions concerning T. scripta addressed pet husbandry concerns and regulatory policies, indicating an intermediate yet negative-leaning valence. These patterns reflect how public cognition is shaped by species’ tangible impacts and their relevance to human daily life. Cross-platform disparities were also marked: TikTok fostered experiential, ecologically-oriented narratives highlighting ecological dominance and health impacts, whereas Sina Microblog maintained consistently positive, policy-focused discourse emphasizing agricultural utility and regulatory governance. These patterns demonstrate that TikTok facilitates personal, emotion-driven narratives, while Sina Microblog promotes institutional, solution-oriented framing, with algorithmic biases further amplifying this discursive divide. Notably, despite these thematic disparities, management strategies were underrepresented across all three species on both platforms, limiting the scope for informed and coordinated public action. We call for platform-tailored communication strategies and enhanced algorithmic transparency to strengthen public education and engagement in IAS management.