Bat-cave catchment areas: using stable isotopes (deltaD) to determine the probable origins of hibernating bats.
Bat-cave catchment areas: using stable isotopes (deltaD) to determine the probable origins of hibernating bats.
复制标题
蝙蝠洞集水区：使用稳定同位素 (deltaD) 确定冬眠蝙蝠的可能起源。
DOI：
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发表时间：
2012
影响因子：
5
通讯作者：
R. Peterson
中科院分区：
文献类型：
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作者：
Alexis R. Sullivan;J. Bump;L. A. Kruger;R. Peterson
稳定氢同位素（deltaD）技术的应用迅速推进了我们对动物运动的理解，但这一进展主要是对鸟类和相对长距离的南北迁徙的研究。这种优势反映了将多个来源的错误纳入地理分配和空间明确的deltaD模型的性质，它具有更大的纬度比纵向分辨率的挑战。然而，最近在基于可能性的分配方面取得的进展，包括多个来源的同位素误差和贝叶斯方法，包括额外的信息来源，可能会促进对动物运动的更精细的理解。我们开发了一种稳定的同位素方法，用于确定蝙蝠可能的起源在hibernacula，并表明这种方法产生空间上明确的，连续的分配与区域分辨率。我们概述了这些任务可以用来推断hibernacula连接，一个应用程序，可以告知白鼻综合征的空间建模。此外，许多洞穴蝙蝠物种的季节性和年度飞行距离的估计可以从这种方法中得出。我们还讨论了如何使用这个应用程序可以在一般蝙蝠种群内提供变量迁移和觅食策略的见解。
The application of stable hydrogen isotope (deltaD) techniques has swiftly advanced our understanding of animal movements, but this progression is dominated by studies of birds and relatively long-distance, north-south migrants. This dominance reflects the challenge of incorporating multiple sources of error into geographic assignments and the nature of spatially explicit deltaD models, which possess greater latitudinal than longitudinal resolution. However, recent progress in likelihood-based assignments that incorporate multiple sources of isotopic error and Bayesian approaches that include additional sources of information may advance finer-scale understanding of animal movements. We develop a stable-isotope method for determining probable origins of bats within hibernacula and show that this method produces spatially explicit, continuous assignments with regional resolution. We outline how these assignments can be used to infer hibernacula connectivity, an application that could inform spatial modeling of white-nose syndrome. Additionally, estimates of seasonal and annual flight distances for many cave-dwelling bat species can be derived from this approach. We also discuss how this application can be used in general to provide insights into variable migratory and foraging strategies within bat populations.