Abstract：
One of the main selection pressures to which animals are exposed in nature is predation, which affects a wide variety of biological traits. When the mother experiences this stressor during pregnancy and/or lactation, behavioral and physiological responses may be triggered in the offspring as well. Thus, in order to broaden and deepen knowledge on the transgenerational effects of predation stress, we evaluated how maternal stress experienced during pregnancy and/or lactation affects the spatial abilities of progeny at the onset of adulthood in the subterranean rodent Ctenomys talarum. The results showed that, contrary to what was observed in other rodent species, maternal exposure to predator cues during pregnancy and lactation did not negatively affect the spatial abilities of the offspring, even registering some minor positive effects. Concomitantly, no effects of predatory cues on physiological parameters associated with stress were observed in the progeny. This difference in results between the present study and previous works on maternal stress highlights the importance of considering the species to be evaluated (strain, age and origin-wild or captive-) and the type of stressor used (artificial or natural, intensity of exposure) in the evaluation of the possible transgenerational effects of maternal stress.
摘要：
动物在自然界中面临的主要选择压力之一是捕食，影响各种各样的生物特征。当母亲在怀孕和/或哺乳期间经历这种压力源时，行为和生理反应也可能在后代中触发。因此，为了拓宽和加深对捕食应力的跨代效应的认识，我们评估了在妊娠期和/或哺乳期经历的母体压力如何影响地下啮齿动物Ctenomystalarum成年初期后代的空间能力。结果表明,与在其他啮齿动物中观察到的相反，母亲在怀孕和哺乳期间暴露于捕食者的线索并没有对后代的空间能力产生负面影响，甚至记录了一些小的积极影响。同时，在后代中未观察到捕食线索对与应激相关的生理参数的影响。本研究与先前有关母体压力的研究结果之间的这种差异突出了考虑要评估的物种的重要性（菌株，年龄和起源-野生或迷人-)和使用的应激源类型(人工或天然，暴露强度）在评估母体压力可能的跨代影响中。
