Bellwood D R, Hughes T P
Centre for Coral Reef Biodiversity, Department of Marine Biology, James Cook University, Townsville, Qld 4811, Australia.
Science. 2001 May 25;292(5521):1532-5. doi: 10.1126/science.1058635.
Tropical reef fishes and corals exhibit highly predictable patterns of taxonomic composition across the Indian and Pacific Oceans. Despite steep longitudinal and latitudinal gradients in total species richness, the composition of these key taxa is constrained within a remarkably narrow range of values. Regional-scale variation in reef biodiversity is best explained by large-scale patterns in the availability of shallow-water habitat. Once habitat area is accounted for, there is surprisingly little residual effect of latitude or longitude. Low-diversity regions are most vulnerable to human impacts such as global warming, underscoring the urgent need for integrated management at multinational scales.
热带珊瑚礁鱼类和珊瑚在印度洋和太平洋呈现出高度可预测的分类组成模式。尽管总物种丰富度存在陡峭的经度和纬度梯度，但这些关键类群的组成被限制在非常狭窄的数值范围内。珊瑚礁生物多样性的区域尺度变化最好由浅水栖息地可用性的大规模模式来解释。一旦考虑了栖息地面积，纬度或经度的残余影响就出奇地小。低多样性地区最容易受到全球变暖等人类影响，这凸显了跨国尺度综合管理的迫切需求。
