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Quantifying the reefscape transformation of a coastal Caribbean coral reef during a phase shift and the associated coastal landscape change

机译：量化相移期间加勒比海沿岸珊瑚礁的礁石转化及其相关的沿海景观变化

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摘要

Caribbean coral reefs are under strong natural and human pressures and many have undergone phase shifts as a result of local and global change. However few studies have quantified the extent of these phase shifts and the potential impacts that they have on coral reef communities. A temporal comparative analysis of several coral reefscape and landscape metrics was conducted for data from Mahahual, Quintana Roo, Mexico, between the years 2000 and 2006, when a phase shift occurred. Landscape metrics were calculated from coral reef and coastal cover maps obtained by multispectral satellite image classification using IKONOS satellite imagery. These metrics showed that the coastal landscape and reefscape of Mahahual lost 85ha of vegetation cover and 43ha of coral cover over 6years, respectively. Coastal landscape transformation was induced by the construction of a cruise ship pier and multiple associated tourist developments along the coast, such as hotels and restaurants, meanwhile alteration of the reefscape may be associated with potential stressors such as coastal development, bleaching events and hurricanes.
机译：加勒比珊瑚礁承受着强大的自然和人类压力，而且由于局部和全球变化，许多珊瑚礁都经历了相变。但是，很少有研究量化这些相移的程度及其对珊瑚礁群落的潜在影响。在2000年至2006年发生相移期间，对来自墨西哥金塔纳罗奥州Mahahual的数据进行了几种珊瑚礁和景观度量的时间比较分析。根据使用IKONOS卫星图像通过多光谱卫星图像分类获得的珊瑚礁和沿海覆盖图计算景观度量。这些指标表明，Mahahual的沿海景观和礁石景观在6年中分别丧失了85ha的植被覆盖和43ha的珊瑚覆盖。沿海景观的转变是由游轮码头的建造以及沿岸的多个相关旅游开发项目（如旅馆和饭店）引起的，同时，景观的改变可能与潜在的压力源相关，例如沿海开发，漂白事件和飓风。

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