The Shape of the Trade-Off Function Between Egg Production and Life Span in the Parasitoid Asobara Tabida
The Shape of the Trade-Off Function Between Egg Production and Life Span in the Parasitoid Asobara Tabida
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DOI：
10.1163/156854200x00252
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
J. Ellers;G. Driessen;J. G. Sevenster
中科院分区：
文献类型：
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作者：
J. Ellers;G. Driessen;J. G. Sevenster
尽管对繁殖成本进行了大量研究，但繁殖与生存之间权衡的形态仍然没有得到解决。在本文中，两个突出的替代品就这个问题进行了比较，在寄生性Asobara tabida（Nees）：产卵量和生理寿命之间的线性关系，产卵量和内在死亡率之间的线性关系。这是第一个研究，直接评估的形状之间的权衡功能的繁殖和生存的昆虫寄生。我们操纵鸡蛋产量低，中或高，并在实验室条件下测量相关的寿命。结果显示，随着产蛋量的增加，平均寿命缩短。这些数据与产蛋量和死亡率之间的权衡函数显着不同，而产蛋量和生理寿命之间的线性权衡函数产生了对数据的准确描述。
Despite a large number of studies on the cost of reproduction, the shape of the trade-off between reproduction and survival is still unresolved. In this paper, two prominent alternatives with respect to this problem are compared in the parasitoid Asobara tabida (Nees): a linear relationship between egg production and physiological life span, and a linear relationship between egg production and intrinsic mortality rate. This is the first study that directly assesses the shape of the trade-off function between reproduction and survival in an insect parasitoid. We manipulated egg production to be low, medium or high and measured the associated life span under laboratory conditions. The results showed a decrease in mean life span with increasing egg production. The data differed significantly from a trade-off function between egg production and mortality rate, while a linear trade-off function between egg production and physiological life span produced an accurate description of the data.