3D photogrammetry improves measurement of growth and biodiversity patterns in branching corals
3D photogrammetry improves measurement of growth and biodiversity patterns in branching corals
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DOI：
10.1007/s00338-023-02367-7
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发表时间：
2023-03-20
期刊：
影响因子：
3.5
通讯作者：
Stier, Adrian C.
中科院分区：
文献类型：
--
作者：
Curtis, Joseph S.;Galvan, Journ W.;Stier, Adrian C.
摄影测量是一种新兴的工具，使科学家能够在多个空间尺度上测量珊瑚礁的重要栖息地特征。然而，很少通过与传统方法的直接比较来评估使用摄影测量法测量珊瑚礁栖息地的生态效益，特别是在人工测量更可行和更负担得起的环境中。在这里，我们应用多种方法测量了珊瑚群落(Pocillopora spp.)并询问摄影测量观测和人工观测哪个更好地描述了珊瑚鱼类和无脊椎动物的短期群体增长以及群体大小与生物多样性之间的联系。利用摄影测量学，我们测量了珊瑚体积变化的模式，否则这些模式会被人工测量的高偏差所掩盖。此外，我们发现，基于摄影测量的群体骨骼体积估计最能预测生活在珊瑚中的动物的丰富度和丰富度。这项研究强调，与人工测量相比，摄影测量可以改进对珊瑚群体大小、生长和相关生物多样性的描述。
Photogrammetry is an emerging tool that allows scientists to measure important habitat characteristics of coral reefs at multiple spatial scales. However, the ecological benefits of using photogrammetry to measure reef habitat have rarely been assessed through direct comparison to traditional methods, especially in settings where manual measurements are more feasible and affordable. Here, we applied multiple methods to measure coral colonies (Pocillopora spp.) and asked whether photogrammetric or manual observations better describe short-term colony growth and links between colony size and the biodiversity of coral-dwelling fishes and invertebrates. Using photogrammetry, we measured patterns in changes in coral volume that were otherwise obscured by high variation from manual measurements. Additionally, we found that photogrammetry-based estimates of colony skeletal volume best predicted the abundance and richness of animals living within the coral. This study highlights that photogrammetry can improve descriptions of coral colony size, growth, and associated biodiversity compared to manual measurements.