用生态原则指导深度学习,自动识别海底生境并解释其生态意义。
An Ecologically-Informed Deep Learning Framework for Interpretable and Validatable Habitat Mapping
- 基于生态约束设计正交专用自编码器,压缩高维特征空间。
- 在哥伦比亚太平洋识别出16种海底生境,覆盖至1000米深。
- 隐空间表征与物种组成高度对应,具生态可解释性,适合海洋管理。
海底生境识别面临环境复杂、技术限制和成本高昂的挑战,尤其在未充分探索区域,导致水生资源可持续管理的知识缺口。我们提出ECOSAIC(生态压缩通过正交专用自编码器实现可解释分类),一种利用可定制自编码器进行自动分类的AI框架,通过优化领域知识特征间的专属性与正交性,压缩n维特征空间。采用两类领域知识:生物地球化学与水成地貌,整合生物、理化、水文与地貌特征,这些因素对生境的制约在生态学中已有百年认知。模型应用于哥伦比亚太平洋,揭示16种海底生境,从红树林延伸至1000米深的岩礁区。候选生境的环境约束在隐空间中的表示与其预期物种组成高度一致,这种对应反映有意义的生态关联而非单纯统计相关,即生境环境供给与物种需求语义匹配。该方法可提升海底生境管理与保护,支持功能制图,助力海洋规划、生物多样性保护与渔业评估。同时为生态学原理如何赋能人工智能框架提供新视角,尤其应对生态研究中普遍存在的数据匮乏问题。
原文摘要 · Abstract (English)
Benthic habitat is challenging due to the environmental complexity of the seafloor, technological limitations, and elevated operational costs, especially in under-explored regions. This generates knowledge gaps for the sustainable management of hydrobiological resources and their nexus with society. We developed ECOSAIC (Ecological Compression via Orthogonal Specialized Autoencoders for Interpretable Classification), an Artificial Intelligence framework for automatic classification of benthic habitats through interpretable latent representations using a customizable autoencoder. ECOSAIC compresses n-dimensional feature space by optimizing specialization and orthogonality between domain-informed features. We employed two domain-informed categories: biogeochemical and hydrogeomorphological, that together integrate biological, physicochemical, hydrological and geomorphological, features, whose constraints on habitats have been recognized in ecology for a century. We applied the model to the Colombian Pacific Ocean and the results revealed 16 benthic habitats, expanding from mangroves to deep rocky areas up to 1000 m depth. The candidate habitats exhibited a strong correspondence between their environmental constraints, represented in latent space, and their expected species composition. This correspondence reflected meaningful ecological associations rather than purely statistical correlations, where the habitat's environmental offerings align semantically with the species' requirements. This approach could improve the management and conservation of benthic habitats, facilitating the development of functional maps that support marine planning, biodiversity conservation and fish stock assessment. We also hope it provides new insights into how ecological principles can inform AI frameworks, particularly given the substantial data limitations that characterize ecological research.
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