5. The ‘NPI – sexual selection hypothesis’ best explained spatiotemporal segregation in our study system. We suggest that females with cubs-of-the-year alter their resource selection to avoid infanticidal males. In species exhibiting NPI as a male reproductive strategy, female avoidance of ...
Menopause:as menopause approaches, cycles become more irregular or non-existent. Once menopause starts, which is usually around the age of 50, the female reproductive phase comes to an end. However, a woman's fertility deteriorates much earlier. Stages of female fertility A woman's most fertile...
| Explained by Dr. Jacqueline Gutmann What is Male Factor Infertility | Men's Health Male infertility is the inability to achieve pregnancy after a year or more of regular, unprotected sex. Possible causes of male infertility include, but are not limited to: Low sperm count or poor sperm ...
The directionality effect could be partially explained by the wind patterns existing during the pollination period. The mean effective number of males mating with each female within neighbourhoods was 10.95 (49.31 per cent of males within neighbourhoods). Keywords: mating system, neighbourhood model, ...
already discussed, in ants, bees, and wasps, the asymmetries in genetic relationships caused by the haplodiploid method of sex determination make conflict over production of males likely. Also, there is a distinct possibility that eusociality could be explained by coercion, rather than by kin ...
The time points were selected based on the completion of the mating windows used in the experiment explained below. We found a reduction in epididymal sperm count on day 11 post treatment. The difference was prominent and significant when the sperm count was taken on day 26 and 36 post-ES ...
Initially, the transcriptomic approach was performed on three levels of comparisons; namely the lines, the sexes, and the legs (Additional file3: Figure S2). The first three axes of variation in gene expression explained 57.1% of the total variation and separated the two inbred populations (Fig...
Okay, so here's something that will blow your mind: the urinary and reproductive systems converge in the male body. In the male system, urine and ejaculate exit the same duct, the urethra, while in the female system they have their own distinctive exits. I explained this to a friend of...
There were also significant differences among the adult morphs in the size of GnRH-ir POA cells that could not be explained on the basis of differences in body size but, rather, appear to reflect differences in the temporal onset of sexual maturation. Together, the data suggest that the ...
In an experiment, we repeatedly tested each female in four treatments in the same order (Control, Predators, Bar, Bar & Predators explained in Methods section) to determine whether females' latency to protrude genitalia decreases from normal (Control) to low immediately after she has experienced ...