This suggests a difference in the rate of decay between expressed traits (female sexual behaviour, which is possibly selected against) and traits that are not expressed (male sexual behaviour and function). 展开 年份: 1996 收藏 引用 批量引用 报错 分享 ...
Following the addition in cultures of either oocysts or excysted sporozoites, immunofluorescent and transmission electron microscopy revealed the presence of all stages of the parasite life cycle by both procedures, and no difference in the ration of infected cells was found among cell lines. More...
There was a marked difference in the development of gonads between the two populations. In the Kurosaki population, monthly changes of gonad indices and histological observations on gonads indicated a distinct annual cycle, with a winter spawning season in both males and females. In the Uozu ...
As in Cnemidophorus , sexual H. frenatus females were more aggressive towards each other than were asexual H. garnotii females belonging to a single clone. However, no difference was found between intra- and inter-clonal aggression in two genetic clones of L. lugubris . The potential for ...
We assessed the shape and estimated the volume of individual eggs produced by the temporally and spatially segregated sexual and asexual generations of the gall former, Belonocnema treatae Mayr (Hymenoptera: Cynipini: Cynipidae). Egg shape, indexed as the difference between the polar and ...
This suggests a difference in the rate of decay between expressed traits (female sexual behaviour, which is possibly selected against) and traits that are not expressed (male sexual behaviour and function). 展开 被引量: 135 年份: 1996
Behavioral data were analyzed using the signed rank test, but asexual rams showed no sexual behavior and therefore were not evaluated statistically. Jugular blood was collected prior to castration and at the end of the 18-wk period, and testicular venous (n = 21) and arterial (n = 8) ...