The waterstrider Aquarius remigis Say (Gerridae, Heteroptera) has large sperm (5mm length), copulates frequently (averages one per day) and has a polygynandrous mating system. We test the hypothesis that sperm reserves will decrease as mating opportunities increase by comparing the behavior and ...
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1996. Sexual selection and the evolution of sexual size dimorphism in the water strider, Aquarius remigis. Evolution 50: 1549±1559.Fairbairn, D. J., and R. Preziosi. 1996. Sexual selection and the evolution of sexual size dimorphism in the water strider, Aquarius remigis. Evolution 50:1549-...
Food Restriction and Sperm Number in the Water Strider Aquarius remigis(水Str水瓶座的食物限制和精子数量) 热度: 水瓶座男生性格分析 热度: B血型 性格命运 综合分析 热度: 水瓶座AQUARIUS性格命运解析 思想超前,理性自重的星座。一样的不爱受约束,一样的博爱,但他们还 ...
Sexual selection and the evolution of sexual size dimorphism in the water strider, Aquarius remigis. Predation risk, food deprivation and non-random mating by size in the stream water strider, Aquarius remigis SEXUAL SIZE DIMORPHISM AND SELECTION IN THE WILD IN THE WATERSTRIDER AQUARIUS REMIGIS: LI...
The sperm from a semi-aquatic insect, the water strider, Aquarius remigis, contains an intrinsically fluorescent molecule with properties consistent with those of flavin adenine dinucleotide (FAD), which appears first in the acrosomal vesicle of round spermatids and persists in the acrosome throughout...
We estimated selection on adult body size for two generations in two populations of Aquarius remigis, as part of a long-term study of the adaptive significance of sexual size dimorphism (SSD). Net adult fitness was estimated from the following components: prereproductive survival, daily reproductive...
> 毕业论文 > MEASURING THE DENSITY OF WATER - NASA Aquarius …:测量水的密度NASA水瓶座… 下载文档 收藏 打印 转格式 41阅读文档大小:1.79M3页亿百度文库上传于2015-01-05格式:PDF Food Restriction and Sperm Number in the Water Strider Aquarius remigis(水Str水瓶座的食物限制和精子数量) ...
Bertin A, Fairbairn DJ (2005) One tool, many uses: precopulatory sexual selection on genital morphology in Aquarius remigis. Journal of Evolutionary Biology 18: 949-961.Bertin A & Fairbairn DJ . 2005 . One tool, many uses: precopulatory sexual selection on genital morphology ...
We present the first empirical test of this model using the water strider Aquarius remigis. Individuals were reared at either 20掳 or 25掳C with subsampling at each instar to estimate growth trajectories. At adult eclosion, half were switched to the alternate temperature and all females isolated,...