Relative gut lengths of coral reef butterflyfishes (Pisces: Chaetodontidae)
Relative gut lengths of coral reef butterflyfishes (Pisces: Chaetodontidae)
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DOI：
10.1007/s00338-011-0791-x
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发表时间：
2011-12-01
期刊：
影响因子：
3.5
通讯作者：
Goodman, B. A.
中科院分区：
文献类型：
--
作者：
Berumen, M. L.;Pratchett, M. S.;Goodman, B. A.
已知密切相关动物的肠道长度的变化通常是饮食习惯的良好预测器。我们研究了肠道长度在28种蝴蝶鱼（Chaetodontidae），其中包括广泛的饮食类型（肉食性，杂食性和珊瑚）。我们发现一般的饮食模式是一个很好的预测相对肠道长度，虽然我们发现组间的差异和与身体大小的协方差。最长的肠道长度是在专门以珊瑚的活组织为食的物种中发现的，而最短的肠道长度是在食珊瑚的物种中发现的。虽然我们试图控制繁殖，但在这个家庭中多次出现珊瑚虫，混淆了我们的分析。蝴蝶鱼，一个speciose家庭与广泛的饮食习惯，但可能提供了一个理想的系统，为未来的工作研究肠道生理与专业化和觅食行为。
Variation in gut length of closely related animals is known to generally be a good predictor of dietary habits. We examined gut length in 28 species of butterflyfishes (Chaetodontidae), which encompass a wide range of dietary types (planktivores, omnivores, and corallivores). We found general dietary patterns to be a good predictor of relative gut length, although we found high variation among groups and covariance with body size. The longest gut lengths are found in species that exclusively feed on the living tissue of corals, while the shortest gut length is found in a planktivorous species. Although we tried to control for phylogeny, corallivory has arisen multiple times in this family, confounding our analyses. The butterflyfishes, a speciose family with a wide range of dietary habits, may nonetheless provide an ideal system for future work studying gut physiology associated with specialization and foraging behaviors.