Interpopulation variation in female remating is attributable to female and male effects in Callosobruchus chinensis
نویسندگان
چکیده
منابع مشابه
the relationship between listening self efficacy, listening comprehension, gende, and age in male and female english learners
چکیده هدف اصلی تحقیق حاضر مطالعه و بررسی رابطه بین خودکارامدی شنیداری با درک شنیداری بود.همچنین رابطه درک شنیداری وخودکارآمدی شنیداری با جنسیت و رابطه خودکارامدی شنیداری با سن نیز مورد بررسی قرار گرفت.تعداد شصت زبان اموز-سی دختر و سی پسر- کانون زبان ایران در مرکز خرم آباد به صورت تصادفی انتخاب شدند. روشهای به کار رفته در جمع اوری داده ها عبارت بودند ازبرسشنامه خودکارآمدی و تست درک شنیداری لانگ...
15 صفحه اولFemale remating in Drosophila ananassae: bidirectional selection for remating speed.
In Drosophila ananassae, artificial selection was carried out for fast and slow remating speed for 10 generations. Response to selection resulted in rapid divergence in remating time in each of two replicates of both fast and slow lines. There were significant differences in mean remating time in females among fast, slow, and control lines. Regression coefficients for both fast and slow lines a...
متن کاملThe effect of male mating history on paternal investment, fecundity and female remating in the seed beetle Callosobruchus maculatus
In insects and many other organisms, males can provide considerable nutrients to females via ejaculates, spermatophores or nuptial gifts (Thornhill 1976; Thornhill & Alcock 1983; Gwynne 1997). These nutritive contributions can impact an animal’s life-history and reproductive strategies (Trivers 1972; Dewsbury 1982) by influencing female fecundity, offspring size or quality, female mating behavi...
متن کاملInsulin signalling regulates remating in female Drosophila
Mating rate is a major determinant of female lifespan and fitness, and is predicted to optimize at an intermediate level, beyond which superfluous matings are costly. In female Drosophila melanogaster, nutrition is a key regulator of mating rate but the underlying mechanism is unknown. The evolutionarily conserved insulin/insulin-like growth factor-like signalling (IIS) pathway is responsive to...
متن کاملSelection on female remating interval is influenced by male sperm competition strategies and ejaculate characteristics.
Female remating rate dictates the level of sperm competition in a population, and extensive research has focused on how sperm competition generates selection on male ejaculate allocation. Yet the way ejaculate allocation strategies in turn generate selection on female remating rates, which ultimately influence levels of sperm competition, has received much less consideration despite increasing ...
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ژورنال
عنوان ژورنال: Journal of Ethology
سال: 2006
ISSN: 0289-0771,1439-5444
DOI: 10.1007/s10164-006-0204-8