Selection on size variation: more variation in bumble bee workers and in the wild
Selection on size variation: more variation in bumble bee workers and in the wild
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大小变异的选择：熊蜂工蜂和野外的变异更多
DOI：
10.1007/s00040-022-00850-y
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发表时间：
2022
期刊：
影响因子：
1.3
通讯作者：
Dornhaus, A.
中科院分区：
文献类型：
--
作者：
Kelemen, E. P.;Skyrm, K.;Dornhaus, A.
体型是任何生物体的一个关键特征，几乎影响其生命史的各个方面。群居昆虫为研究体型提供了一个有趣的模型，因为它们在群体内经常表现出高度的工蜂体型差异。大小变化通常在实验室中研究，有时使用商业购买的菌落；因此，测试实验室中发现的尺寸变化是否代表自然条件非常重要。此外，通常认为群体内工蚁规模的分布在群体水平上是自适应的。然而，这种大小变化也可能是由于对巢发育的控制不佳（以及对性状的选择较弱）造成的。使用在实验室饲养时表现出大量工蜂尺寸变化的大黄蜂，我们测试了（1）来自具有商业蜂王的实验室蜂群的工蜂是否比来自具有野生蜂王的野外蜂群的工蜂尺寸变化更大，以及（2）工蜂的尺寸是否比同时饲养的雄性或蜂王更大。我们发现，野外群体的体型差异比实验室群体更大，而工蚁的差异也比任一生殖种姓的差异更大。我们的结果表明，产生的变异量是可以选择的，可能受到护士行为的积极调节。这些结果还表明，尺寸变化不是实验室造成的，并且在实验室和自然环境中都很常见。因此，可以从实验室培养的菌落中推断出尺寸变化的进化和生态影响，并考虑到更大的尺寸变化。
Body size is a key feature of any organism, influencing almost every aspect of its life history. Social insects provide an interesting model to study body size, because they often exhibit a high degree of worker size variation within the colony. Size variation is often studied in the lab, sometimes using commercially purchased colonies; therefore, it is important to test if the size variation found in the lab is representative of natural conditions. Furthermore, the distribution of worker sizes within a colony is generally assumed to be adaptive at the colony level. However, such size variation may also result from poor control over brood development (and weak selection on the trait). Using bumble bee (Bombus impatiens),which display a large amount of worker size variation when raised in the lab, we tested whether (1) workers from lab colonies with commercial queens are more variably sized than workers from field colonies with wild queens, and (2) whether workers are more variably sized than concurrently raised males or queens. We found that the size variation was greater in field than lab colonies, and workers varied more than either reproductive caste. Our results indicate that the amount of variation produced is accessible to selection, possibly actively regulated by nurse behavior. These results also suggest that size variation is not a lab artifact and is common across both laboratory and natural environments. Therefore, evolutionary and ecological implications of size variation can be inferred from lab-reared colonies with consideration for even greater size variation.
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社会对大黄蜂 Bombus terrestris 体型和发育时间的影响
影响因子：
2.3
作者：
H. Shpigler;Matan Tamarkin;Yael Gruber;Maayan Poleg;A. Siegel;G. Bloch
通讯作者：
G. Bloch
较低的温度会减少工蜂体型的变化，但不会影响大黄蜂的细粒度体温调节
影响因子：
2.3
作者：
E. Kelemen;A. Dornhaus
通讯作者：
A. Dornhaus
影响因子：
2.1
作者：
Powell, S.
通讯作者：
Powell, S.
大小变化对于大黄蜂来说并不能起到保险作用；
影响因子：
2.5
作者：
Kelemen, Evan P.;Davidowitz, Goggy;Dornhaus, Anna
通讯作者：
Dornhaus, Anna