Current and future predicted distributions of invasive toads (Anura: Bufonidae) and bullfrogs (Anura: Ranidae) on Sado Island
Current and future predicted distributions of invasive toads (Anura: Bufonidae) and bullfrogs (Anura: Ranidae) on Sado Island
复制标题
佐渡岛入侵蟾蜍（无蜮：蟾蜍科）和牛蛙（无蜮：蛙科）当前和未来预测分布
DOI：
10.1016/j.japb.2022.03.007
复制
发表时间：
2022
影响因子：
0.8
通讯作者：
Kamijo Takashi
中科院分区：
文献类型：
--
作者：
Sawada Kiyoto;Aihara Takaki;Kamijo Takashi
岛屿生态系统被认为是生物多样性的热点，但也容易受到外来物种的入侵。日本佐渡岛是特有和稀有物种的栖息地，例如特有的佐渡皱蛙。然而，两种外来青蛙物种Bufo japonicus formosus和Lithobates catesbeianus被引入岛上，威胁着岛上的生物多样性，且其分布信息缺乏。在这项研究中，我们进行了B的分布调查。 日本刺参 catesbeianus在佐渡岛上进行了研究，并使用物种分布模型预测了它们当前和未来的潜在分布。我们发现B. 日本刺参目前栖息在该岛西南部靠近引入点的地方，并且正在扩张。与此同时，L. catesbeianus的分布范围比B更广。 日本刺参几乎遍及其大部分潜在的适宜栖息地。我们预测，在未来，B. 日本刺参的分布范围将扩大到岛的东南部。这些发现表明，B 是必要的。 日本刺参，以防止其扩展到更远的地区和 L. 考虑到其分布状况，catesbeianus 可以减少种群数量。
Island ecosystems are thought to be hotspots of biodiversity but are also susceptible to invasion by alien species. Sado Island in Japan is a habitat for endemic and rare species, such as the endemic Sado wrinkled frog. However, two alien frog species,Bufo japonicus formosusandLithobates catesbeianus, which have been introduced to the island are threatening the biodiversity of the island and their distribution information is lacking. In this study, we conducted a distribution survey ofB. japonicusandL. catesbeianusover Sado Island and predicted their current and future potential distributions using a species distribution model. We found thatB. japonicuscurrently inhabits the southwestern part of the island near its introduction point and is in the process of expansion. Meanwhile,L. catesbeianushas a wider distribution range thanB. japonicusand is almost expanding throughout most of its potential suitable habitat. We predict that, in the future,B. japonicuswill expand their distribution to the southeastern part of the island. These findings show that it is necessary forB. japonicusto prevent their expansion into further area andL. catesbeianusto reduce the population, considering their distribution status.