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Isotopic niche is not equal to trophic niche |
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| Authors: | Nicolas Hette‐Tronquart |
| Abstract: | The work of Sheppard et al. (Ecol. Lett., 21, 2018, 1395) relies on the strong assumption that isotopic niche is equal to trophic niche. Here I raise three main concerns showing that classic hypotheses built upon trophic niche cannot be directly interpreted in isotopic space. Future studies should always keep isotopic and trophic niches distinct. |
| Keywords: | Feeding strategy intragroup competition isotopic space niche overlap niche partitioning stable isotope trophic space |