Dunnock two or three adjacent female territories overlap one male territory, and so polygyny is favored, with the male monopolising several females. Polygynandry also exists, in which two males jointly defend a territory containing several females. Polyandry, though, is the most common mating system of dunnocks found in nature. Depending on the population, males generally have the best reproductive success in polygynous populations, while females have the advantage during polyandry. Studies have illustrated the fluidity of dunnock mating systems. When given food in abundance, female territory size is reduced drastically. Consequently, males can more easily monopolise the females. Thus, the mating
Rondebosch Common which has covered most of the Cape Flats. The common also conserves a few patches of Renosterveld and a seasonal wetland, giving it a hugely varied biodiversity for such a small area. Of the hundreds of plant species that occur here, at least nine are on the Red Data List. This stretch of land also protects 110 species of bird, as well as small mammals, reptiles and amphibians. The local biodiversity is threatened by invasive plants such as Kikuyu grass. In the past, Rondebosch Common was used as a military camp (hence the name of "Camp Ground Road", which borders