Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15805 |
The spatial footprint and patchiness of large-scale disturbances on coral reefs | |
Andreas Dietzel; Sean R. Connolly; Terry P. Hughes; Michael Bode | |
2021-08-14 | |
发表期刊 | Global Change Biology |
出版年 | 2021 |
英文摘要 | Ecosystems have always been shaped by disturbances, but many of these events are becoming larger, more severe and more frequent. The recovery capacity of depleted populations depends on the frequency of disturbances, the spatial distribution of mortality and the scale of dispersal. Here, we show that four mass coral bleaching events on the Great Barrier Reef (in 1998, 2002, 2016 and 2017) each had markedly larger disturbance footprints and were less patchy than a severe category 5 tropical cyclone (Cyclone Yasi, 2011). Severely bleached reefs in 2016 and 2017 were isolated from the nearest lightly affected reefs by up to 146 and 200 km, respectively. In contrast, reefs damaged by Cyclone Yasi were on average 20 km away from relatively undisturbed reefs, well within the estimated range of larval dispersal for most corals. Based on these results, we present a model of coral reef disturbance and recovery to examine (1) how the spatial clustering of disturbances modifies large-scale recovery rates; and (2) how recovery rates are shaped by species' dispersal abilities. Our findings illustrate that the spatial footprint of the recent mass bleaching events poses an unprecedented threat to the resilience of coral species in human history, a threat that is even larger than the amount of mortality suggests. |
领域 | 气候变化 ; 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/335798 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Andreas Dietzel,Sean R. Connolly,Terry P. Hughes,et al. The spatial footprint and patchiness of large-scale disturbances on coral reefs[J]. Global Change Biology,2021. |
APA | Andreas Dietzel,Sean R. Connolly,Terry P. Hughes,&Michael Bode.(2021).The spatial footprint and patchiness of large-scale disturbances on coral reefs.Global Change Biology. |
MLA | Andreas Dietzel,et al."The spatial footprint and patchiness of large-scale disturbances on coral reefs".Global Change Biology (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论