We performed a multiyear monitoring study to compare amphibian habitat quality among four natural, four restored, and six created pools. We used successful reproduction and metamorphosis of two vernal pool indicator species, the wood frog and spotted salamander, to represent desired outcomes. Ordination techniques were used to identify the aspects of habitat quality that were most correlated with desired outcomes. Previously published results indicated that pool depth, volume, and hydroperiod were among the best predictors of success, regardless of pool type. Observations in the first few years of monitoring also suggested that pools with longer hydroperiods had a greater abundance of aquatic predators of eggs and larvae of indicator species. This follow‐up study further explores and compares predator–prey relationships among pool types. We quantified within‐pool predator and prey abundance and diversity and collected another year of data on the reproductive success of indicator species. Our results confirmed that mean predator abundance was eight times higher in pools with longer hydroperiods. We documented a 96% decrease in wood frog survival rates in a semi‐permanent, natural pool following a 41% decrease in overhead canopy cover and an increase in green frog abundance. At the same time, wood frog reproductive success increased in nearby restored pools with lower predator abundance. Pools with the highest mean survival rates for the two indicator species combined were short‐ or long‐cycle pools (i.e. hydroperiod of 12–35 weeks) with low predator abundance (i.e. <1 organism L⁻¹) and greater proportions of arthropod prey relative to other food items.

中文翻译：

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自然，还原和创建的春季池中的捕食者与被捕食者之间的关系

我们进行了一项多年监测研究，比较了四个天然池，四个恢复池和六个创建池中的两栖动物栖息地质量。我们使用了两种春季池指示剂物种（木蛙和斑点sal）的成功繁殖和变态来代表所需的结果。使用排序技术来确定与预期结果最相关的栖息地质量方面。先前发表的结果表明，无论池类型如何，池深度，体积和水力周期都是成功的最佳预测指标。监测的头几年中的观察结果还表明，具有较长水周期的池中卵的水生天敌和指示物种的幼虫的数量更大。这项后续研究进一步探索并比较了池类型之间的天敌关系。我们量化了池内捕食者和猎物的丰度和多样性，并收集了另一年有关指示物种繁殖成功的数据。我们的结果证实，在水周期较长的水池中，平均捕食者的丰度高出八倍。我们记录到，半永久性天然水池中木蛙的存活率降低了96％，而架空的树冠覆盖面积减少了41％，绿蛙的丰度增加了。同时，附近捕食池的捕食者丰度较低，从而使蛙蛙的繁殖成功增加。这两个指标物种的平均存活率最高的库是掠食性动物数量低（即<1个生物体L）的短周期或长周期库（即水周期为12-35周）我们的结果证实，在水周期较长的水池中，平均捕食者的丰度高出八倍。我们记录到，半永久性天然水池中木蛙的存活率降低了96％，而架空的树冠覆盖面积减少了41％，绿蛙的丰度增加了。同时，附近捕食池的捕食者丰度较低，从而使蛙蛙的繁殖成功增加。这两个指标物种的平均存活率最高的库是掠食性动物数量低（即<1个生物体L）的短周期或长周期库（即水周期为12-35周）我们的结果证实，在水周期较长的水池中，平均捕食者的丰度高出八倍。我们记录到，半永久性天然水池中木蛙的存活率降低了96％，而架空的树冠覆盖面积减少了41％，绿蛙的丰度增加了。同时，附近捕食池的捕食者丰度较低，从而使蛙蛙的繁殖成功增加。这两个指标物种的平均存活率最高的库是掠食性动物数量低（即<1个生物体L）的短周期或长周期库（即水周期为12-35周）捕食者的丰度较低，附近恢复的池塘中的木蛙繁殖成功率增加。这两个指标物种的平均存活率最高的库是掠食性动物数量低（即<1个生物体L）的短周期或长周期库（即水周期为12-35周）捕食者的丰度较低，附近恢复的池塘中的木蛙繁殖成功率增加。这两个指标物种的平均存活率最高的库是掠食性动物数量低（即<1个生物体L）的短周期或长周期库（即水周期为12-35周）^-1）和相对于其他食品更大比例的节肢动物猎物。