DIEL VERTICAL MIGRATION IN ZOOPLANKTON - RAPID INDIVIDUAL-RESPONSE TO PREDATORS
DIEL VERTICAL MIGRATION IN ZOOPLANKTON - RAPID INDIVIDUAL-RESPONSE TO PREDATORS
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DOI：
10.1093/plankt/13.6.1359
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发表时间：
1991-11-01
影响因子：
2.1
通讯作者：
FROST, BW
中科院分区：
文献类型：
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作者：
BOLLENS, SM;FROST, BW
浮游动物昼夜垂直迁移是一种捕食者回避行为，但捕食者诱导和维持这种行为的机制一直存在争议。 我们报告的结果在原位捕食者操纵实验期间，封闭的人口的海洋浮游桡足类Acartia hudsonica迅速改变其垂直分布和昼夜迁移行为取决于存在或不存在的食鱼Gasterosteus aculeatus。 这些结果毫不含糊地指出，表型的行为可塑性的个人的捕食，而不是，如以前假设的，人口遗传水平的行为变化所造成的选择性鱼类捕食，作为机制的变化，昼夜垂直迁移在这个桡足类。
While diel vertical migration in zooplankton has been shown recently to be a predator avoidance behavior, the mechanism by which predators induce and maintain such behavior has been debated. We report results of an in situ predator manipulation experiment during which enclosed populations of the marine planktonic copepod Acartia hudsonica rapidly changed their vertical distribution and diel migration behavior depending on presence or absence of the planktivorous fish Gasterosteus aculeatus. These results point unambiguously to phenotypic behavioral plasticity of individual planktonic prey, not, as previously hypothesized, population-genetic level behavioral changes caused by selective fish predation, as the mechanism underlying changes in diel vertical migration in this copepod.