Brood size: a major factor influencing male dimorphism in the non‐pollinating fig wasp Sycobia sp.
Brood size: a major factor influencing male dimorphism in the non‐pollinating fig wasp Sycobia sp.
复制标题
DOI：
10.1111/j.1365-2311.2009.01123.x
复制
发表时间：
2009-12
影响因子：
2.2
通讯作者：
L. Niu;Haoyuan Hu;Da-Wei Huang;Yueguan Fu;Z. Peng
中科院分区：
文献类型：
--
作者：
L. Niu;Haoyuan Hu;Da-Wei Huang;Yueguan Fu;Z. Peng
1雄性多态性已经在一些非授粉榕小蜂和其他动物中描述过。男性生殖策略的选择和维持的最接近的基础是遗传的或环境的。2研究了非传粉榕小蜂Sycobia sp.的雄性二型性。通过实验操作，研究了影响子代雄性形态分配的因素，并为Sycobia sp.雄性二型性的确定和维持探索了可能的依据。当育雏的大小增加，无翅男性比例也增加。4同时，我们的研究结果表明，后代雄性形态分配没有直接的母体控制。[5]雄二型性可能代表了一种环境决定的条件策略，它在个体水平上对后代种群密度作出反应。
1 Male polymorphisms have been described in some non‐pollinating fig wasps, as well as in other animals. The proximal basis and the maintenance of alternative male reproductive strategies are either genetic or environmental. 2 Here we studied male dimorphism in the non‐pollinating fig wasp Sycobia sp. We conducted experimental manipulations to study the factors influencing offspring male morph allocations and explore a possible basis for the determination and maintenance of male dimorphism in Sycobia sp. 3 The results showed that brood size was the major and underlying factor influencing the male morph ratio. When the brood size increases, the wingless male ratio also increases. 4 Also, our results indicated that there was no direct maternal control on offspring male morph allocation. 5 Male dimorphism in Sycobia sp. probably represents an environmentally determined conditional strategy, which responded to offspring population density at the level of the individual fig.