Feeding rates in the sailfin molly Poecilia latipinna and its coexisting sexual parasite, the gynogenetic Amazon molly Poecilia formosa.
نویسندگان
چکیده
Feeding rates of the gynogenetic Amazon molly Poecilia formosa and one of its sexual hosts, the sailfin molly Poecilia latipinna, were measured under winter and summer temperature conditions. Food consumption of the unisexual P. formosa in winter conditions was significantly higher than that of P. latipinna, and it is hypothesized that the resulting food stress might have an important influence on the population composition of these closely related fishes via higher winter mortality in P. formosa.
منابع مشابه
Differences in thermal tolerance in coexisting sexual and asexual mollies (Poecilia, Poeciliidae, Teleostei).
This study reports significant differences between the gynogenetic Amazon molly Poecilia formosa and one of its sperm hosts, and the sexual sailfin molly Poecilia latipinna in the critical temperatures at which individual fishes lost motion control. Based on these measurements, it is suggested that cold snaps occurring in winter, but not summer temperatures, can significantly change population ...
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ورودعنوان ژورنال:
- Journal of fish biology
دوره 77 1 شماره
صفحات -
تاریخ انتشار 2010