Biodiversity links above and below the marine sediment-water interface that may influence community stability
Biodiversity links above and below the marine sediment-water interface that may influence community stability
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DOI：
10.1023/a:1014098917535
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发表时间：
2002-01-01
影响因子：
3.4
通讯作者：
Smith, C
中科院分区：
文献类型：
--
作者：
Austen, MC;Lambshead, PJD;Smith, C
生物多样性和群落稳定性之间的沉积物-水界面（SWI）之间的联系似乎存在，但研究甚少。生物多样性的变化可能影响SWI另一侧的稳定性的过程包括摄食过程中的碳转移、有机物的分解、营养物质的再循环、生物体的补充和沉积物的结构稳定。这些过程的重要性显然因生境而异。对SWI一侧社区的直接干扰，如过度捕捞、栖息地破坏和物种入侵，有可能通过许多功能联系影响SWI另一侧的社区。提出的假设，建议进一步的研究领域，以填补我们的知识的性质和强度的这种联系的巨大差距。在极地和沿海浅沃茨等领域之间存在密切的能量联系，以及在群落以选择性食草动物为主的地方，底栖生物多样性和中上层生物多样性之间的联系可能更为紧密。沉积物中碳储量的数量和沉积物群落的幼虫发育的主导模式可能会影响SWI以下群落的稳定性，在面对上述SWI多样性的变化。在SWI发现的生物，包括超底栖生物，可能对SWI以上和以下群落的联系和稳定至关重要。
Linkages across the sediment-water interface (SWI) between biodiversity and community stability appear to exist but are very poorly studied. Processes by which changes in biodiversity could affect stability on the other side of the SWI include carbon transfer during feeding, decomposition of organic matter, nutrient recycling, organism recruitment and structural stabilisation of sediments. The importance of these processes will clearly vary among habitats. Direct disturbance to communities on one side of the SWI, such as created by overfishing, habitat destruction, and species invasions, has the potential to impact communities on the other side of the SWI through the many functional links. Hypotheses are proposed to suggest further areas of research to fill the large gaps in our knowledge concerning the nature and intensity of such linkages. The linkage between benthic and pelagic diversity is likely to be tighter where there is a close energetic connection between the domains, such as polar and shallow coastal waters, and where communities are dominated by selective detritivores. The quantity of carbon reserves in the sediment and the predominant mode of larval development of sediment communities probably influence the stability of below SWI communities in the face of changes in above SWI diversity. The organisms, including hyperbenthos, that are found at the SWI may be of crucial importance to the linkage and stability of above and below SWI communities.