منابع مشابه
Pregnancy in a Breastfeeding Mouse without Mating
In this report, a rare case of pregnancy in a mouse without mating and during breastfeeding is presented. Out-bred NMRI mice were prepared for mating. Two female mice without superovulation were caged with one male. The next morning, vaginal plaque was not detected; therefore, females were kept in the cage with the same male for 4 more days. One of the females delivered 4 offspring: one female ...
متن کاملMating failure
Greenway et al. introduce the concept of mating failure, the failure to produce offspring.
متن کاملMating Disruption / SIR Predicting the success of mating disruption
Examining the many successes and failures of mating disruption reveals that there is a great deal of variability in the susceptibility of species to this control tactic. For some species, such as redbanded leafroller and oriental fruit moth, treatment with pheromone alone is often sufficient to mitigate crop damage. Other pests, such as the codling moth and certain leafrollers, appear to be mor...
متن کاملMating portfolios: bet-hedging, sexual selection and female multiple mating.
Polyandry (female multiple mating) has profound evolutionary and ecological implications. Despite considerable work devoted to understanding why females mate multiply, we currently lack convincing empirical evidence to explain the adaptive value of polyandry. Here, we provide a direct test of the controversial idea that bet-hedging functions as a risk-spreading strategy that yields multi-genera...
متن کاملFemale Fitness Optimum at Intermediate Mating Rates under Traumatic Mating
Traumatic mating behaviors often bear signatures of sexual conflict and are then typically considered a male strategy to circumvent female choice mechanisms. In an extravagant mating ritual, the hermaphroditic sea slug Siphopteron quadrispinosum pierces the integument of their mating partners with a syringe-like penile stylet that injects prostate fluids. Traumatic injection is followed by the ...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 2011
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay6084