This mating causes difficulties in childbirth, since there is a chance that the child conceived in a heterospecific mating will have its father's blood type.
Despite evidence that females gain indirect benefits (i.e., second-generation benefits) from multiple mating, two difficulties are often identified.
A trivial one is that males are the ones to have difficulties mating in a confined space.
He led the race from the start and controlled it from the front, which suggests anticlimax, especially when his arch rival and Mercedes team-mate, Nico Rosberg, had difficulties with his car.
(3) Additional negative synthetic effects were identified by difficulties in mating certain mutants with strains expressing EGFP-α-actinin and Myo1p-mGFP.
We originally intended to use all available strains but could not use a few because of difficulties in mating or strong aggregation in liquid cultures, which made estimation of growth rate unreliable.
In general, though they are fertile, the male str mice have difficulty in mating.
Presumably, a large adult male from Talofofo would have more difficulty in mating with females at Umatac or Pago because he would be competing with more males and males with larger head crests (e.g., Figure 2).
Pointing out difficulties your mate has controlling blood pressure or completing simple physical tasks without getting out of breath will show that you are genuinely concerned about health issues and not just a full figure.
The Allee effect is caused by various kinds of biological and environmental factors, such as difficulties in finding mates, low probability of successful mating, depletion in inbreeding rate, anti-predator aggression, predator avoidance due to evolutionary change, etc. [5 8].
