Consistent individual differences in fathering in threespined stickleback Gasterosteus aculeatus.
Consistent individual differences in fathering in threespined stickleback Gasterosteus aculeatus.
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三刺棘鱼 Gasterosteus aculeatus 的生育行为存在一致的个体差异。
DOI：
10.1093/czoolo/58.1.45
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发表时间：
2012
期刊：
影响因子：
2.2
通讯作者：
Bell,AlisonM
中科院分区：
文献类型：
--
作者：
Stein,LauraR;Bell,AlisonM
越来越多的证据表明，个体动物在行为上表现出一贯的差异。例如，个体三刺棘鱼对捕食者的反应不同，在与同类的社会互动中，它们的攻击性有多大。一个相对未被探索但潜在重要的变异轴是亲代行为。在棘鱼中，父亲提供后代生存所必需的所有亲代照顾；因此，父系关爱与健康直接相关。在这项研究中，我们评估了雄性棘鱼个体在亲代行为上是否始终存在差异。我们记录了11只雄性个体在一个窝中每天的巢访次数、扇扇子的总时间和活动水平，然后让雄性再次繁殖。一半的雄性在第一次生育时面临被捕食的风险，另一半的雄性在第二次生育时面临被捕食的风险。我们发现，在孵蛋过程中，父母的行为在时间上发生了巨大的变化：例如，在蛋孵化之前，扇风的总时间增加了六倍，然后减少到几乎为零。尽管有这些时间上的变化，雄性在一窝中保留了它们独特的养育方式，这不能用体型或卵子数量的差异来解释。此外，当雄性再次繁殖时，养育子女的个体差异仍然存在。暴露于模拟捕食风险的雄性短暂地减少了扇面，增加了活动水平。总之，这些结果表明，个体刺鱼在作为父母的行为方式上一直是不同的。
There is growing evidence that individual animals show consistent differences in behavior. For example, individual threespined stickleback fish differ in how they react to predators and how aggressive they are during social interactions with con-specifics. A relatively unexplored but potentially important axis of variation is parental behavior. In sticklebacks, fathers provide all of the parental care that is necessary for offspring survival; therefore paternal care is directly tied to fitness. In this study, we assessed whether individual male sticklebacks differ consistently from each other in parental behavior. We recorded visits to nest, total time fanning, and activity levels of 11 individual males every day throughout one clutch, and then allowed the males to breed again. Half of the males were exposed to predation risk while parenting during the first clutch, and the other half of the males experienced predation risk during the second clutch. We detected dramatic temporal changes in parental behaviors over the course of the clutch: for example, total time fanning increased six-fold prior to eggs hatching, then decreased to approximately zero. Despite these temporal changes, males retained their individually-distinctive parenting styles within a clutch that could not be explained by differences in body size or egg mass. Moreover, individual differences in parenting were maintained when males reproduced for a second time. Males that were exposed to simulated predation risk briefly decreased fanning and increased activity levels. Altogether, these results show that individual sticklebacks consistently differ from each other in how they behave as parents.
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影响因子：
2
作者：
Carl Smith;R. Wootton
通讯作者：
R. Wootton
父母对小口黑鲈 (Micropterus dolomieui) 幼崽大小控制的反应
影响因子：
1.7
作者：
M. Ridgway
通讯作者：
M. Ridgway
慈鲷的生活史进化1：重新审视与亲代照顾相关的生活史进化
影响因子：
2.1
作者：
N. Kolm;N. B. Goodwin;S. Balshine;J. Reynolds
通讯作者：
J. Reynolds
影响因子：
2.5
作者：
B. Rushbrook;N. Dingemanse;I. Barber
通讯作者：
I. Barber
DOI：
10.2307/2529571
发表时间：
1992-04
期刊：
--
影响因子：
--
作者：
W. Becker
通讯作者：
W. Becker