期刊
CORAL REEFS
卷 40, 期 6, 页码 1679-1685出版社
SPRINGER
DOI: 10.1007/s00338-021-02190-y
关键词
Habitat complexity; Coral reefs; Scleractinian corals; Photogrammetry; Structure from motion
The study found that the structural complexity of coral reefs is mainly built by colonies of different species working together, with significant differences in how each species contributes to this complexity. The variation in complexity is closely related to colony morphology, rather than size, which could have implications for reef recovery and restoration efforts.
The structural complexity of coral reefs provides important ecosystem functions, such as wave attenuation for coastal protection, surfaces for coral growth, and habitat for other organisms. Corals build much of this structure, but an understanding of how colonies of different species and sizes contribute to complexity is lacking. We quantified three interdependent descriptors of complexity-rugosity, fractal dimension, and height range-for reef patches as well as the corals growing upon them in Kane'ohe Bay (O'ahu, Hawai'i). Despite similar levels of reef-scale complexity throughout the bay, we found marked differences in how species contribute to this complexity. Variation in complexity among species was closely tied to colony morphology, but not to colony size. Together, our results show that no one species is sufficient to generate the full spectrum of habitat complexities we see on coral reefs, which could have implications for reef recovery and restoration.
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