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Title: Plant‐eating carnivores: Multispecies analysis on factors influencing the frequency of plant occurrence in obligate carnivores
Authors: Yoshimura, Hiroto
Hirata, Satoshi
Kinoshita, Kodzue  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-5804-5485 (unconfirmed)
Author's alias: 義村, 弘仁
平田, 聡
木下, こづえ
Keywords: carnivore
diet
felids
plant eating
Issue Date: Aug-2021
Publisher: Wiley
Journal title: Ecology and Evolution
Volume: 11
Issue: 16
Start page: 10968
End page: 10983
Abstract: Plant-eating behavior is one of the greatest mysteries in obligate carnivores. Despite unsuitable morphological and physiological traits for plant consumption, the presence of plants in scat or stomach contents has been reported in various carnivorous species. However, researchers’ interpretations of this subject are varied, and knowledge about it is scarce, without any multispecies studies. This study assessed the extent of variation in the frequency of plant occurrence in scat and stomach contents, as well as its relationship with various factors in 24 felid species using data from 213 published articles. Since the frequency of plant occurrence has not always been reported, we created two-part models and estimated parameters in a Bayesian framework. We found a significant negative relationship between the frequency of plant occurrence and body mass. This may be because plant-eating behavior reduces the energy loss caused by parasites and increases the efficiency of energy intake, which has a greater importance in smaller animals that have relatively high metabolic rates. This exploratory study highlights the importance of considering plant consumption in dietary studies on carnivorous species to understand the adaptive significance of this behavior and the relationship between obligate carnivores and plants.
Rights: © 2021 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
URI: http://hdl.handle.net/2433/275690
DOI(Published Version): 10.1002/ece3.7885
PubMed ID: 34429895
Appears in Collections:Journal Articles

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