Leriche Agathe, Boudouresque Charles-François, Gravez Vincent, Mayot Nicolas
Centre d'Océanologie de Marseille, Campus de Luminy, case 901, 13288 Marseille cedex 9, France.
C R Biol. 2006 Sep;329(9):733-41. doi: 10.1016/j.crvi.2006.05.001. Epub 2006 Aug 8.
Despite the fact that coverage is one of the most widely used descriptors for seagrass meadows, the spatial structure of coverage at mesoscale has not often been taken into account. The present work investigates the structure of P. oceanica coverage at mesoscale and its possible relationship with several factors (depth, type of substrate, relative level within the meadow, type of shoot density and level of anthropic pressure). Five classes of coverage structure are delineated within P. oceanica meadows and statistical analysis of the data did not provide evidence of a link with the factors taken into consideration. This result could be explained by the prevailing role of endogenic processes in the structuring of the P. oceanica meadow.
尽管覆盖度是用于描述海草草甸的最广泛使用的指标之一，但中尺度覆盖度的空间结构却常常未被考虑在内。本研究调查了中尺度下大洋海神草覆盖度的结构及其与几个因素（深度、基质类型、草甸内相对位置、茎密度类型和人为压力水平）之间可能存在的关系。在大洋海神草草甸中划分出了五类覆盖度结构，对数据的统计分析并未提供与所考虑因素存在关联的证据。这一结果可以通过内生过程在大洋海神草草甸结构形成中的主导作用来解释。
