| sex-biased movement in the guppy (poecilia reticulata). | the movement strategies of birds and mammals are often closely linked to their mating system, but few studies have examined the relationship between mating systems and movement in fishes. we examined the movement patterns of the guppy ( poecilia reticulata) in the arima river of trinidad and predicted that sexual asymmetry in reproductive investment would result in male-biased movement. since male guppies maximize their reproductive success by mating with as many different females as possible, t ... | 2003 | 12856201 |