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Sperm competition in mammals.
Female promiscuity can lead to the spermatazoa of several males 'competing' to fertilize the ova of a single female. Such promiscuity is relatively common among mammals and has resulted in a suite ofExpand
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Pregnancy block in laboratory mice as a function of male social status.
  • U. Huck
  • Biology, Medicine
  • Journal of reproduction and fertility
  • 1 September 1982
Bruce (1960) first demonstrated that the presence of a strange male mouse blocked the pregnancy of recently impregnated females in the laboratory. Pregnancy blockage was followed by a return toExpand
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Scent marking and mate choice in the golden hamster
Test groups consisting of three males and one female were adapted to home areas within a 244 X 122 cm enclosure for a 4-day period. Subsequently, agonistic interactions and patterns of scent markingExpand
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Olfactory discrimination of social status in the brown lemming
This study was conducted to determine whether female brown lemmings would discriminate between dominant and subordinate conspecific males on the basis of odor cues. A free-choice, Y-shapedExpand
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Determinants of mating success in the golden hamster (Mesocricetus auratus): I. Male capacity.
Rested adult golden hamsters produced a mean of 13 ejaculations and then showed a modified copulatory pattern consisting of long intromissions (10-30 s of intravaginal thrusting) during which noExpand
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Social dominance and reproductive success in pregnant and lactating golden hamsters (Mesocricetus auratus) under seminatural conditions
Pairs of female hamsters were acclimated to seminatural enclosures and permitted to interact for brief periods on days 12-14 of gestation or on days 2-4 of lactation. In one experimental paradigm,Expand
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Current Problems in the Study of Infanticidal Behavior of Rodents
Infanticide in a variety of species, has been reported anecdotally in the scientific literature for many years. Hypotheses concerning its underlying causes have ranged from infanticide as a means ofExpand
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Effects of age and parity on litter size and offspring sex ratio in golden hamsters (Mesocricetus auratus).
Golden hamsters that were mated repeatedly from 55 days of age produced 6-12 litters. Litter size at birth rose between the 1st and 2nd litters, peaked on the 3rd, and declined steadily after the 5thExpand
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Offspring sex ratio in hamsters is correlated with vaginal pH at certain times of mating.
Golden hamsters (Mesocricetus auratus) are sexually receptive for 19-21 h around the time of ovulation. Vaginal pH was measured immediately before mating in four groups of animals each mated at aExpand
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Influence of pre- and post-copulatory pair contact on pregnancy success in Djungarian hamsters, Phodopus campbelli.
Females housed with their mates for 3 or 4 days before mating took place (i.e. early in the oestrous cycle at the time of introduction to the mate) were significantly more likely to litter than wereExpand
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