Comparing three body condition indices in amphibians: a case study of yellow-bellied toad Bombina variegata
Comparing three body condition indices in amphibians: a case study of yellow-bellied toad Bombina variegata
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DOI：
10.1163/017353710x518405
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发表时间：
2010-01-01
影响因子：
1.6
通讯作者：
Cogalniceanu, Dan
中科院分区：
文献类型：
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作者：
Bancila, Raluca Ioana;Hartel, Tibor;Cogalniceanu, Dan
身体状况很重要，因为它与种群和栖息地质量参数相关。由于直接测量是致命的或不可靠的，已经提出了广泛的非致命的身体状况指数。本研究的目的是应用和比较三个身体状况指数（富尔顿指数，相对身体状况质量指数和剩余指数）的身体大小指标-体质量数据的24个种群的黄腹蟾蜍（Bombina variegata）。条件指数应该独立于身体大小指标，在这种情况下，吻排气长度（SVL）。因此，我们测试了所有三个指标的统计独立性SVL和正态分布。富尔顿指数违反了独立性假设，而相对身体状况质量指数没有正态分布。残差指数均独立于SVL，呈正态分布。此外，残差指数突出了生物学的显着差异的基础上的海拔和季节。我们的研究结果建议作为一个有用的工具，在两栖动物监测和保护的剩余指数。
Body condition is important because it is correlated with population and habitat quality parameters. Since the direct measurements are either lethal or unreliable, a wide range of non-lethal body condition indices has been proposed. The aim of our study was to apply and compare three body condition indices (Fulton's index, relative body condition mass index and residual index) using body size indicator - body mass data for 24 populations of the yellow bellied toad (Bombina variegata). The condition index should be independent of body size indicator, in this case snout vent length (SVL). Therefore we tested all three indices for the statistical independence of SVL and for the normality of distribution. Fulton's index violated the independence assumption, whereas the relative body condition mass index did not have a normal distribution. Residual index was found both independent of SVL and normally distributed. Moreover, the residual index highlighted biological significant differences on the basis of altitude and season. Our results recommend the residual index as a useful tool in amphibian monitoring and conservation.