Male mating behavior and costs of sexual harassment for females in cavernicolous and extremophile populations of Atlantic mollies (Poecilia mexicana)
نویسنده
چکیده
Martin Plath1,2,3,4) (1 Unit of Animal Ecology, Department of Biochemistry and Biology, University of Potsdam, Maulbeerallee 1, 14469 Potsdam, Germany; 2 Unit of Evolutionary Biology and Systematic Zoology, Department of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany; 3 Department of Zoology, University of Oklahoma, 730 Van Vleet Oval, Norman, OK 73019, USA)
منابع مشابه
The role of androgens in species recognition and sperm production in Atlantic mollies (Poecilia mexicana).
Much is known about the role of hormones in the regulation of vertebrate mating behavior, including receptivity, and several components of mate choice. Hormones may modulate reproductive behavior in such a way to increase or decrease the individual's motivation, and therefore hormones may be important in mediating behavior associated with reproductive isolation. The mating complex of the all fe...
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Male mate choice is critical for understanding the evolution and maintenance of sexual/asexual mating complexes involving sperm-dependent, gynogenetic species. Amazon mollies (Poecilia formosa) require sperm to trigger embryogenesis, but the males (e.g. Poecilia mexicana) do not contribute genes. Males benefit from mating with Amazon mollies, because such matings make males more attractive to c...
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Aim: To consider how geographic variation in species recognition over time affects the speciation process. Organisms: The gynogenetic livebearing fish Poecilia formosa (Amazon molly) is the hybrid offspring of two bisexual parent species, P. latipinna (sailfin molly) and P. mexicana (Atlantic molly). The Amazon molly is an all-female species that must mate with males of their parent species. Bu...
متن کاملSeasonal plasticity in male mating preferences in sailfin mollies
Although male choosiness may be influenced by predation risk, variation in mate availability, and fecundity that may vary spatially and over time, there is little evidence for variation in male mate choice preferences. In mixed populations of bisexual sailfin mollies (Poecilia latipinna) and unisexual Amazon mollies (Poecilia formosa), males encounter 2 types of potential mates: conspecific sex...
متن کاملMixed-species shoals and the maintenance of a sexual–asexual mating system in mollies
The mating system of the sexual–asexual complex of sailfin mollies, Poecilia latipinna, and Amazon mollies, P. formosa, depends on the close proximity of individuals in aggregations or shoals because P. formosa is gynogenetic (that is, sperm only initiate embryogenesis but do not contribute genetic material) and must be inseminated by male P. latipinna. Furthermore, female P. latipinna copy the...
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تاریخ انتشار 2008