在严重干扰后,孤立的珊瑚礁系统的恢复
James P Gilmour1, Luke D Smith, Andrew J Heyward
1Australian Institute of Marine Science, University of Western Australia Oceans Institute, Perth, WA 6009, Australia. j.gilmour@aims.gov.au
概括
孤立的珊瑚礁可以从珊瑚漂白中恢复. 尽管幼虫供应减少,在一个孤立的西澳大利亚珊瑚礁上,珊瑚覆盖显著增加,这是由于残留的殖民地生存和生长,证明了弹性.
科学领域:
- 海洋生物学 海洋生物学
- 生态生态学 生态生态学
- 保护科学 保护科学
背景情况:
- 珊瑚礁的恢复通常与未受干扰的珊瑚礁的幼虫供应有关.
- 孤立的珊瑚礁被认为容易受到干扰,因为连接有限.
研究的目的:
- 在西澳大利亚的一个孤立系统上调查珊瑚礁恢复.
- 评估幼虫供应与内在恢复机制之间的作用.
主要方法:
- 监测珊瑚覆盖在漂白后的12年内发生的变化.
- 量化幼虫供应减少的情况.
- 分析珊瑚的生长,生存和招募率.
主要成果:
- 在12年内,珊瑚覆盖率从9%增加到44%.
- 6年来,幼虫供应减少了94%.
- 恢复是由剩余的殖民地生长和随后的青少年招募推动的.
结论:
- 孤立的珊瑚礁可以从重大干扰中实现显著的恢复.
- 内在的恢复过程 (增长,生存,招募) 是至关重要的.
- 隔离的好处,如减少人为压力,可以超过有限的连接.
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