Manipulation of parasitoid size using the temperature-size rule: fitness consequences
Manipulation of parasitoid size using the temperature-size rule: fitness consequences
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DOI：
10.1007/s00442-007-0674-6
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发表时间：
2007-06-01
期刊：
影响因子：
2.7
通讯作者：
Hance, Th.
中科院分区：
文献类型：
--
作者：
Colinet, H.;Boivin, G.;Hance, Th.
本文研究了饲养温度对科氏蚜茧蜂几个适合度组分的表型效应。在发展过程中经历的温度诱导的塑料线性响应的干和脂肪质量的不成熟阶段和非线性响应的增长速度，以及在成人的大小。我们调查了在不同温度下饲养的拟寄生蜂所表现出的表型形态可塑性是否会引起雌性适合度相关性状的变化。我们没有发现根据饲养温度的未成熟（蛹）死亡率有任何差异。然而，当研究成虫寿命时，我们发现与发育温度呈反比线性关系，证实了通常的规则，即较大和较胖的黄蜂比较小的黄蜂寿命更长。雌性生殖力的模式是非线性的，在高温和低温下发育的黄蜂生产力较低。我们认为，当发展是短期的，积累的储备是不足以支持双方的繁殖力和生存。通过操纵成人大小通过饲养温度的变化，我们发现，通常的形状的大小/健身功能并不总是线性的预期。发育温度诱导的可塑性能量储备，影响生存和繁殖之间的功能限制。
The phenotypic effects of rearing temperature on several fitness components of the koinobiont parasitoid, Aphidius colemani, were examined. Temperatures experienced during development induced a plastic linear response in the dry and fat masses of the immature stage and a non-linear response in the growth rate as well as in the size of adults. We investigated if the phenotypic morphometrical plasticity exhibited by parasitoids reared at different temperatures can induce variations in fitness-related traits in females. We did not find any difference in immature (pupal) mortality in accordance to rearing temperature. However, when examining adult longevity, we found an inverse linear relation with developmental temperature, confirming the usual rule that larger and fatter wasps live longer than smaller ones. The pattern of female fecundity was non-linear; wasps that developed at high and low temperatures were less productive. We suggest that when development is short, the accumulated reserves are not adequate to support both fecundity and survival. By manipulating adult size through changes in the rearing temperature, we showed that the usual shape of the size/fitness function is not always linear as expected. Developmental temperature induced a plasticity in energy reserves which affected the functional constraints between survival and reproduction.