在佛罗里达州的珊瑚礁上,十多年的八珊瑚动态
Ronen Liberman1, Alexandra Hiley2, Lindsay K Huebner3
1National Coral Reef Institute, Nova Southeastern University, 8000 N Ocean Drive, Dania Beach, Florida, 33004 , USA. rliberma@nova.edu.
Scientific reports
|October 29, 2025
概括
佛罗里达州珊瑚礁上的八度珊瑚表现出弹性,密度增加,尽管干扰后覆盖率下降. 快速招募有助于恢复,但完全恢复需要时间和生存.
科学领域:
- 海洋生态海洋生态学
- 珊瑚礁生物学 珊瑚礁生物学
- 地生态学 地生态学
背景情况:
- 八角珊瑚在西大西洋的珊瑚礁上日益占主导地位,超过了scleractinians.
- 佛罗里达州的珊瑚礁 (FCR) 有丰富的八角珊瑚,它们对干扰有弹性.
- 评估八角角性需要不仅仅是掩护;招募和生存是关键.
研究的目的:
- 通过使用多种指标,对FCR上的树木性八角珊瑚的时空趋势进行调查.
- 分析八角珊瑚对干扰的反应,包括海洋热浪和风.
- 评估招募和生存在八角珊瑚群体动态和弹性中的作用.
主要方法:
- 利用了长达十年 (2013-2023) 的八角珊瑚覆盖,密度和整个FCR的招募密度的数据集.
- 采用通用的混合效应模型来分析时间和空间趋势.
- 与海洋热浪和风等重大干扰事件相关的八角珊瑚度量变化.
主要成果:
- 从2013年到2023年,八角珊瑚覆盖面略有下降 (1.67%),但密度增加了33.7%,表明社区转移.
- 在后半年的研究中,招聘激增,在一些地区增加了人口密度,超过了骚乱前的水平.
- 风伊尔玛 (2017) 造成了显著的下降;最近的干扰 (风伊恩,2022年和2023年热浪) 影响了佛罗里达群岛.
结论:
- 八角珊瑚在FCR上表现出了显著的弹性,经过急性干扰后通过招募迅速恢复.
- 虽然密度很快恢复,但达到干扰前的百分比覆盖率需要持续增长和生存.
- 采用多度指标的方法对于理解八角角质动态及其对环境压力因素的反应至关重要.
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