Department of Biology, Texas State University - San Marcos, TX 78666, USA.
J Fish Biol. 2011 Jul;79(1):194-204. doi: 10.1111/j.1095-8649.2011.03009.x. Epub 2011 Jun 20.
Male sailfin mollies Poecilia latipinna were tested in five different treatments that varied in the relative frequency of heterospecific gynogens (Amazon molly Poecilia formosa) to conspecific females to determine whether social interactions among males within a population causes some males to mate with heterospecific females. Male P. latipinna inseminated a significantly higher proportion of conspecific females and fertilized a significantly higher number of conspecific eggs regardless of the treatment. Nonetheless, preference for conspecific females was not exclusive as a range of 20 to 50% of heterospecific females were fertilized. Social interactions among males may best explain the results and may therefore play an important role in the maintenance of unisexual--bisexual mating complexes.
雄性帆鳍玛丽鱼（Poecilia latipinna）在五种不同的处理中进行了测试，这些处理在异源雌核生殖体（亚马逊玛丽鱼，Poecilia formosa）与同种雌鱼的相对频率上有所不同，以确定种群内雄性之间的社会互动是否导致某些雄性与异源雌鱼交配。雄性 P. latipinna 显著增加了同种雌鱼的授精比例，并显著增加了同种雌鱼的产卵数量，无论处理方式如何。尽管如此，对同种雌鱼的偏好并非排他性的，因为有 20%至 50%的异源雌鱼被受精。雄性之间的社会互动可能是导致这一结果的最佳解释，因此可能在维持单性-两性交配复合体方面发挥重要作用。
