Hui Xin, Ma Zhi-Jun
Fudan University, Shanghai 200433, China.
Dongwuxue Yanjiu. 2010 Aug;31(4):446-52. doi: 10.3724/SP.J.1141.2010.04446.
Protandry refers the earlier arrival at breeding sites or reproductive stages of males than females. Focusing on the general phenomenon of males arriving at breeding sites earlier than females in migratory birds, we introduced six hypotheses for explaining the protandrous arrival, including rank advantage, susceptibility, constraint, mate opportunity, waiting cost, and mate choice hypothesis. We also discussed the applicability of these hypotheses to explain the protandry in migratory birds. In addition, we put forward the issues which might be important in the future research, including 1) occurrences of protandry in species of sexually homomorphism, 2) effects of global warming on protandry, and 3) effects of intrasexual competition on protandry.
雄性先熟是指雄性比雌性更早到达繁殖地点或进入繁殖阶段。针对候鸟中雄性比雌性更早到达繁殖地点这一普遍现象，我们提出了六个用于解释雄性先到达的假说，包括等级优势假说、易感性假说、限制假说、交配机会假说、等待成本假说和配偶选择假说。我们还讨论了这些假说在解释候鸟雄性先熟现象方面的适用性。此外，我们提出了未来研究中可能重要的问题，包括1）两性同形物种中雄性先熟的发生情况，2）全球变暖对雄性先熟的影响，以及3）同性竞争对雄性先熟的影响。
