Chicken and Egg: Testing the Carbon Isotopic Effects of Carnivory and Herbivory
Chicken and Egg: Testing the Carbon Isotopic Effects of Carnivory and Herbivory
复制标题
先有鸡还是先有蛋：测试肉食动物和草食动物的碳同位素效应
DOI：
10.1111/arcm.12253
复制
发表时间：
2017
期刊：
影响因子：
1.6
通讯作者：
R. Hedges
中科院分区：
文献类型：
--
作者：
T. O’Connell;R. Hedges
在骨中，胶原蛋白和生物磷灰石碳酸盐中的δ 13 C之间的间距在食草动物中大于食肉动物，这对从幸存的硬组织中理解动物饮食生态学具有意义。有两种解释：不同的饮食组成或食草动物和食肉动物之间的生理差异。我们测量了肉食性和草食性饮食对单一物种的同位素效应，以单独测试饮食组成的影响。测定了不同日粮下鸡蛋和骨中蛋白质δ 13 C、δ 15 N和碳酸盐δ 13 C的含量。草食性母鸡的蛋清和蛋壳之间的δ 13 C间距为+14.3‰，杂食性母鸡为+12.4‰，肉食性母鸡为+11.5‰。草食性母鸡的生物磷灰石-胶原蛋白Δ 13 C间距测量值为+6.2‰，杂食性母鸡的计算值为+4.3‰，肉食性母鸡的计算值为+3.4‰-与观察到的哺乳动物草食性和肉食性生物磷灰石-胶原蛋白Δ 13 C差异相似。我们的结论是，在一个单一的物种的饮食组成从草食动物到食肉动物的转变，改变生物磷灰石胶原蛋白碳同位素间距。我们的数据强烈表明，这是由Δ 13 C生物磷灰石-饮食间距的差异造成的，而不是Δ 13 C胶原-饮食间距的差异。
In bone, the spacing between δ13C in collagen and bioapatite carbonate is greater in herbivores than carnivores, with implications for understanding animal dietary ecology from surviving hard tissues. Two explanations have been proposed: varying diet composition or differences in physiology between herbivores and carnivores. We measured the isotopic effects of carnivorous and herbivorous diets on a single species, to test the effect of diet composition alone. Protein δ13C and δ15N and carbonate δ13C were measured on egg and bone from hens on different diets. Herbivorous hens had a +14.3‰ spacing between egg albumen and shell δ13C, compared to +12.4‰ for omnivorous hens, and +11.5‰ for carnivorous hens. The bioapatite–collagen Δ13C spacing was measured as +6.2‰ for herbivorous hens, and calculated as +4.3‰ for omnivorous hens, and +3.4‰ for carnivorous hens—similar to observed mammalian herbivore and carnivore bioapatite–collagen Δ13C differences. We conclude that a shift in diet composition from herbivory to carnivory in a single species does alter the bioapatite–collagen carbon isotopic spacing. Our data strongly suggest that this results from differences in the Δ13Cbioapatite–diet spacing, and not that of Δ13Ccollagen–diet.
同位素比 (IR) 质谱法在药物代谢研究中的评价。
DOI：
10.1002/bms.1200120911
发表时间：
1985
期刊：
Biomedical mass spectrometry
影响因子：
--
作者：
Nakagawa,A;Kitagawa,A;Asami,M;Nakamura,K;Schoeller,DA;Slater,R;Minagawa,M;Kaplan,IR
通讯作者：
Kaplan,IR
影响因子：
2.2
作者：
Fernandes, Ricardo;Nadeau, Marie-Josee;Grootes, Pieter M.
通讯作者：
Grootes, Pieter M.