Escoriza Daniel
GRECO, University of Girona, Girona, Girona, Spain.
PeerJ. 2020 Mar 19;8:e8821. doi: 10.7717/peerj.8821. eCollection 2020.
The western Mediterranean archipelagos have a rich endemic fauna, which includes five species of reptiles. Most of these archipelagos were colonized since early historic times by anthropochoric fauna, such as ship rats (). Here, I evaluated the influence of ship rats on the occurrence of island reptiles, including non-endemic species.
I analysed a presence-absence database encompassing 159 islands (Balearic Islands, Provence Islands, Corso-Sardinian Islands, Tuscan Archipelago, and Galite) using Bayesian-regularized logistic regression.
The analysis indicated that ship rats do not influence the occurrence of endemic island reptiles, even on small islands. Moreover, co-occurred positively with two species of non-endemic reptiles, including a nocturnal gecko, a guild considered particularly vulnerable to predation by rats. Overall, the analyses showed a very different pattern than that documented in other regions of the globe, possibly attributable to a long history of coexistence.
地中海西部群岛拥有丰富的特有动物群，其中包括五种爬行动物。自历史早期以来，这些群岛中的大多数都被诸如船鼠等人为引入的动物所占据。在此，我评估了船鼠对岛屿爬行动物（包括非特有物种）出现情况的影响。
我使用贝叶斯正则化逻辑回归分析了一个包含159个岛屿（巴利阿里群岛、普罗旺斯群岛、科西嘉 - 撒丁岛群岛、托斯卡纳群岛和加莱特群岛）的存在 - 缺失数据库。
分析表明，即使在小岛上，船鼠也不会影响岛屿特有爬行动物的出现情况。此外，船鼠与两种非特有爬行动物呈正相关，其中包括一种夜行壁虎，这是一个被认为特别容易受到鼠类捕食的类群。总体而言，分析显示出与世界其他地区记录的模式非常不同，这可能归因于长期共存的历史。
