Reclamation and habitat-disturbance effects on landbird abundance and productivity indices in the oil sands region of northeastern Alberta, Canada
Reclamation and habitat-disturbance effects on landbird abundance and productivity indices in the oil sands region of northeastern Alberta, Canada
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DOI：
10.1111/rec.12478
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发表时间：
2017-07-01
影响因子：
3.2
通讯作者：
Saracco, James F.
中科院分区：
文献类型：
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作者：
Foster, Kenneth R.;Godwin, Christine M.;Saracco, James F.
阿尔伯塔油砂地区的填海速度和规模正在增加，需要测量和验证开发栖息地生态功能的技术。在阿尔伯塔，实现与扰动前的土地能力相当是填海认证的一项监管要求。我们比较了2011-2013年使用监测鸟类生产力和生存率（MAPS）协议收集的雾网数据中的陆生鸟类丰度和生产力指数，并在35个监测站的自然，复垦和干扰栖息地中使用当地栖息地协变量。生境协变量的主成分分析解释了20个生境结构变量中83%的变异。我们发现栖息地协变量和捕获的成年鸟，幼鸟，和/或捕获幼鸟（生产力）的概率为12种陆生鸟类之间的显着关系，在某些情况下，捕获反应与生产力的反应栖息地变量。考虑到目标物种的栖息地偏好，对开垦年龄的反应与预期一致。积极的反应，开垦年龄从专性森林居住的物种需要更多的年变得明显比那些喜欢演替阶段的栖息地，而一个物种，喜欢开放，草原栖息地出现下降与开垦年龄，大概是由于栖息地演替。应用的MAPS协议作为一种工具，以评估和跟踪的性能回收和干扰的栖息地的演示，在自然栖息地的陆生鸟类丰度和生产力指数是有用的指标，相当于土地的能力。
The pace and scale of reclamation in Alberta's oil sands region are increasing, and techniques to measure and validate the ecological function of developing habitats are needed. In Alberta, achievement of equivalent land capability to that present before disturbance is a regulatory requirement of reclamation certification. We compared landbird abundance and productivity indices from mist-netting data collected in 2011-2013 using the Monitoring Avian Productivity and Survivorship (MAPS) protocol with local habitat covariates at 35 monitoring stations in natural, reclaimed, and disturbed habitats. Principal component analysis of habitat covariates explained 83% of the variation in 20 habitat-structure variables. We found significant relationships between habitat covariates and captures of adult birds, young birds, and/or the probability of capturing a young bird (productivity) for 12 landbird species; in some cases, capture responses contrasted with productivity responses to habitat variables. Responses to reclamation age were as expected, given habitat preferences of our target species. Positive responses to reclamation age from obligate forest-dwelling species take more years to become evident than those for species preferring successional-stage habitats, while one species that prefers open, grassland habitats appeared to decline with reclamation age, presumably due to habitat succession. Application of the MAPS protocol as a tool to evaluate and track the performance of reclaimed and disturbed habitats is demonstrated, with landbird abundance and productivity indices in natural habitats being useful indicators of equivalent land capability.