Spatial and temporal variation in settlement and recruitment of the intertidal barnacle Semibalanus balanoides (L.) (Crustacea: Cirripedia) over a European scale
Spatial and temporal variation in settlement and recruitment of the intertidal barnacle Semibalanus balanoides (L.) (Crustacea: Cirripedia) over a European scale
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DOI：
10.1016/s0022-0981(99)00121-5
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发表时间：
2000-01-01
影响因子：
2
通讯作者：
Hartnoll, RG
中科院分区：
文献类型：
--
作者：
Jenkins, SR;Åberg, P;Hartnoll, RG
使用分层抽样方案研究了潮间带藤壶 Semibalanus balanoides 的沉降和补充水平的变化。确定了三个空间尺度的影响，即数十米（地点）、数千米（海岸）和数百公里（位置）。最大的空间尺度代表瑞典、马恩岛、爱尔兰西南部和英格兰西南部这四个相距较远的地点之间的距离，覆盖面积。欧洲 S. balanoides 范围的很大一部分。通过比较 1997 年和 1998 年这两年来确定时间变化。S. balanoides 的定居期在长度和时间上有所不同，在瑞典最北的位置较早和较短。不同地点的海岸之间的沉降持续时间差异不大，但沉降模式确实有所不同。整个定居期间的总定居人数和该时期结束时的招募人数的估计都显示出不同地点之间的巨大差异，这取决于研究年份。两年间的地点排名几乎没有一致性。在海岸和场地的较低空间尺度上，招募表现出显着的变化。此外，对方差成分的检查表明，1997 年站点内的重复数据之间存在很大程度的差异。四个站点中的三个站点的定居和招募之间存在显着关系。在所有地点，定居点的差异解释了 29% 到 99% 的招聘差异。然而，不同地点的定居后生存水平存在明显差异。 (C) 2000 Elsevier Science B.V. 保留所有权利。
Variation in the level of settlement and recruitment in the intertidal barnacle Semibalanus balanoides was studied using a hierarchical sampling programme. The effect of three spatial scales, 10s of metres (sites), 1000s of metres (shores) and 100s of kilometres (locations), was determined. The largest spatial scale represented the distance between four widely separated locations, Sweden, the Isle of Man, SW Ireland and SW England, covering a. large part of the range of S. balanoides in Europe. Temporal variation was determined by comparison between two years, 1997 and 1998. The settlement period of S. balanoides varied in length and timing, being earlier and shorter at the most northerly location, Sweden. The duration of settlement showed little difference among shores within locations, but the pattern of settlement did vary. Estimates of total settlement throughout the settlement period and of recruitment at the end of this period both showed substantial variation among locations which was dependent on the year of study. There was little consistency in the ranking of locations between the two years. Recruitment showed significant variation I the lower spatial scales of shore and site. In addition, examination of variance components showed a high degree of variation between replicates within sites in 1997. There was a significant relationship between settlement and recruitment at three of the four locations. Across all locations variation in settlement explained between 29 and 99% of variation in recruitment. However, locations showed distinct differences in the level of post-settlement survival. (C) 2000 Elsevier Science B.V. All rights reserved.