Cover image: Plains zebras (Equus burchelli ) graze at Lewa Wildlife Conservancy in Central Kenya, where they specialize on a relatively small number of plant species as well as a relatively narrow array of plant lineages—nearly exclusively members of the grass family, Poaceae. The study by Kartzinel and Pringle compared the taxonomic and phylogenetic dietary diversity of cooccurring large herbivores and found that these dimensions of dietary diversity can be decoupled: taxonomic generalists can be phylogenetic specialists, and vice versa (see pp 1482–1496). Photo credit: Tyler Kartzinel

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封面图片和发行信息

封面图片：斑马（Equus burchelli）在肯尼亚中部的利瓦野生动物保护区放牧，在那里他们专门研究相对少量的植物物种以及相对狭窄的植物谱系-几乎只属于禾本科禾本科。Kartzinel和Pringle的研究比较了同时发生的大型草食动物的分类学和系统发育的饮食多样性，发现饮食多样性的这些方面可以分离：分类学通才可以是系统发育专家，反之亦然（请参阅第1482–1496页）。图片来源：Tyler Kartzinel