A forensic approach to understanding diet and habitat use from stable isotope analysis of (avian) claw material
A forensic approach to understanding diet and habitat use from stable isotope analysis of (avian) claw material
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DOI：
10.1046/j.1365-2435.2003.00725.x
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发表时间：
2003-04-01
影响因子：
5.2
通讯作者：
Waldron, S
中科院分区：
文献类型：
--
作者：
Bearhop, S;Furness, RW;Waldron, S
1. 研究了利用鸟爪的稳定同位素特征来推断饮食和栖息地利用的潜力。2．预计留鸟的爪子和身体羽毛中的稳定碳和氮同位素比率（δ（13）C，δ（15）N）之间观察到高度显着的关系，因为预计它们是在相同的栖息地和一年中大约相同的时间合成的。3。同样，由于爪子是在越冬区合成的，而三羽是在繁殖区合成的，新热带候鸟的爪子和第三羽中δ(13) C 和δ(15) N 之间观察到的非显着关系也被预测。4．在五种古北雀形目鸟类的爪子中测量的生长速率提供了证据，表明该组织应该在中等时间范围内（可能是几周到几个月）整合饮食和栖息地信息。5。有人认为，爪子可能为同位素生态学家提供了独特的属性组合：它们是非侵入性采样的；代谢惰性，但不断生长，因此是比羽毛更灵活的工具。6。还表明哺乳动物和爬行动物的爪子中的稳定同位素特征可能提供类似的信息。
1. The potential of using stable isotope signatures of avian claws in order to infer diet and habitat use was investigated.2. Highly significant relationships observed between stable carbon and nitrogen isotope ratios (delta(13) C, delta(15) N) in the claws and body feathers of resident birds were expected since it was predicted that they were synthesized in the same habitat and approximately the same time of year.3. Likewise the non-significant relationships observed between delta(13) C and delta(15) N in the claws and tertial feathers of neotropical migrant birds were also predicted since the claws were synthesized in the wintering area and the tertials in the breeding area.4. The growth rates measured in the claws of five species of palearctic passerines provide evidence that this tissue should integrate dietary and habitat information over a medium temporal scale (probably weeks to months).5. It is suggested that claws may offer a unique combination of attributes to the isotope ecologist: they are non-invasively sampled; metabolically inert but grow continuously, and are therefore a more flexible tool than feathers.6. It is also suggested that that the stable isotope signatures in the claws of mammals and reptiles may provide similar information.