Timing of successful settlement: demonstration of a recruitment window in the barnacle Semibalanus balanoides
Timing of successful settlement: demonstration of a recruitment window in the barnacle Semibalanus balanoides
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成功定居的时机：藤壶 Semibalanus balanoides 中招募窗口的演示
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
Todd A Stueckle
中科院分区：
文献类型：
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作者：
J. Pineda;V. Starczak;Todd A Stueckle
补充是底栖生物种群动态的一个关键因素，影响定居的空间和时间进程可能决定补充;然而，时间进程尚未得到很好的理解。通过测量藤壶半藤壶（Semibalanus balanoides）在整个定居季节中的日定居量，检验了新藤壶定居的日期是否为定居季节内的随机样本。在12个样方上，89 d内共捕获藤壶幼虫2721尾。个体定居者被追踪到生殖年龄（定居后11个月）;只有8个存活到生殖年龄。幸存者在一个狭窄的21天的招聘窗口内定居，这一时期比预期的要短。补充窗口的概念在研究底栖动物补充和种群动态方面具有广泛的意义。在征聘窗口较窄时侧重于这一窗口，可以简化征聘研究，因为需要考虑的因素较少。
Recruitment is a key factor in benthic population dynamics, and spatial and temporal processes that affect settlement may determine recruitment; however, temporal processes are not well understood. We tested whether the date that recruits settle is a random sample within the settle- ment season by measuring daily settlement of the barnacle Semibalanus balanoides throughout the entire settlement season. A total of 2721 barnacle larvae settled during 89 d on 12 quadrats. Individ- ual settlers were tracked to reproductive age (11 mo after settlement); only 8 survived to reproduc- tion. Survivors settled within a narrow 21 d recruitment window, a period shorter than expected by chance. The concept of a recruitment window has broad implications in studying benthic recruitment and population dynamics. Focus on the recruitment window when it is narrow could simplify the study of recruitment, since fewer factors would have to be considered.