Avian Polyandry: Life History Strategies in a Model System

要了解男女之间差异的原因以及这种差异对他们之间社会互动的影响，一种方法是对“传统”性别角色颠倒的生物体进行详细研究。这种物种存在，尽管数量很少。这项研究将涉及一个详细的行为研究的Jacanas jacana一种滨鸟。在这个物种中，雄性执行所有的“父母”照顾鸡蛋和年轻人。女性之间的竞争，以获得获得男性。通过单独标记种群的所有成员，研究人员将详细说明社会互动和生殖结果。这项研究提供了深入了解性别角色逆转的演变和独家男性父母照顾的起源的机会。它还应导致更好地了解两性之间生殖冲突的动态。该研究将提供用于评估热带生物多样性的信息，因为该物种是栖息在整个世界热带水生栖息地的最普遍的指示物种之一。

One approach to understanding the causes of the differences between males and females as well as the implications of such differences for social interactions between them, is to perform detailed studies of organisms in which the "traditional" sex role are reversed. Such species exist, although they are few in number. This research will involve a detailed behavioral study of Jacanas jacana a species of Shorebird. In this species males perform all of the "parental" care of the eggs and young. Females compete among themselves to obtain access to males. By individually marking all members of a population, the researchers will detail social interactions and reproductive outcome. The study offers opportunities to gain insights into the evolution of sex-role reversal and the origins of exclusive male parental care. It should also lead to a better understanding of the dynamics of reproductive conflict between the sexes. The study will provide information of use in assessing tropical biodiversity since this species is one of the most ubiquitous indicator species inhabiting aquatic habitats throughout the would's tropics.