Thirty-year recovery of mollusc communities after nuclear experimentations on Fangataufa atoll (Tuamotu, French Polynesia)
Thirty-year recovery of mollusc communities after nuclear experimentations on Fangataufa atoll (Tuamotu, French Polynesia)
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方加陶法环礁（法属波利尼西亚土阿莫土）核实验后软体动物群落的三十年恢复
DOI：
10.1098/rspb.2015.0750
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
B. Salvat
中科院分区：
文献类型：
--
作者：
P. Legendre;B. Salvat
一个30年的时间变化的腹足类群落结构的珊瑚礁的太平洋环礁（方阿陶法，土阿莫土群岛）在20世纪60年代进行大气核试验的研究提供了一个机会，否则不可能的实地实验，可以帮助生态学家了解软体动物的初级演替。珊瑚礁的软体动物被核试验的高温部分或全部消灭，珊瑚礁被海洋幼虫吞噬。在所有珊瑚礁上，测试前的群落组成与测试后的群落组成非常不同。开发了一种新的分析方法来研究测试前后群落组成的时间变化（时间β多样性）。分析表明，随着时间的推移，珊瑚礁的群落组成有所不同。只有一些物种能够在滨海带的恶劣条件下生存，所以同一物种使它们灭绝;环境过滤控制了新群落的发展。在礁坪和边缘区，社区组成的差异似乎是中性随机殖民来自公海的幼虫的结果。所有珊瑚礁都形成了与核试验前大不相同的群落组成。
A 30-year study of temporal changes in gastropod community structure on the reefs of a Pacific Ocean atoll (Fangataufa, Tuamotu Archipelago) subjected to atmospheric nuclear tests during the 1960s offered the opportunity for an otherwise impossible field experiment that could help ecologists understand mollusc primary succession. Reef molluscs were partly or entirely wiped out by the heat of the nuclear tests and the reefs were recolonized by ocean larvae. On all reefs, community composition before the tests was very different from what it evolved to afterwards. A new method of analysis was developed to study the temporal variation in community composition before versus after the tests (temporal beta diversity). Analyses showed that community compositions diverged through time among the reefs. Only some species can survive the harsh conditions of supralittoral zones, so the same species recolonized them; environmental filtering controlled the development of the new communities. In the reef flat and edge zones, differences in community composition seem to be the result of neutral stochastic colonization by larvae coming from the open ocean. All reefs developed a community composition quite different from that before the nuclear tests.