COVER PHOTO: Large carnivores, including the Eurasian lynx (Lynx lynx), are expanding in Europe. Andrén and Liberg (this issue; Article e1594; doi:10.1002/ecm.1594) have used that unusual situation of recolonization to study the interaction between lynx and roe deer (Capreolus capreolus). The authors found that a Lotka–Volterra type predator–prey model could explain the dynamic relationship between lynx and roe deer. The cover image shows a radio-marked female Eurasian lynx that was photographed 27 June 2000 in the study area near Grimsö Wildlife Research Station in Sweden. Photo credit: Henrik Andrén.

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封面图片

封面照片：包括欧亚山猫 ( Lynx lynx ) 在内的大型食肉动物正在欧洲扩张。 Andrén 和 Liberg（本期；文章 e1594；doi:10.1002/ecm.1594）利用这种不寻常的重新殖民情况来研究山猫和狍子 ( Capreolus capreolus ) 之间的相互作用。作者发现，洛特卡-沃尔泰拉型捕食者-被捕食者模型可以解释山猫和狍子之间的动态关系。封面图片展示了一只带有无线电标记的雌性欧亚山猫，于 2000 年 6 月 27 日在瑞典格里姆瑟野生动物研究站附近的研究区域拍摄。照片来源：Henrik Andrén。