Factors restricting the range expansion of the invasive green anole Anolis carolinensis on Okinawa Island, Japan.
Factors restricting the range expansion of the invasive green anole Anolis carolinensis on Okinawa Island, Japan.
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DOI：
10.1002/ece3.3002
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发表时间：
2017-06
影响因子：
2.6
通讯作者：
Kawata M
中科院分区：
文献类型：
--
作者：
Suzuki-Ohno Y;Morita K;Nagata N;Mori H;Abe S;Makino T;Kawata M
绿色变色龙Anolis carolinensis入侵日本小笠原群岛，使许多当地物种灭绝，在最初建立后的14年，其分布范围扩大。A. carolinensis入侵冲绳，但在25年多的时间里没有扩大其分布，尽管其密度在南部地区极高。确定A. carolinensis在冲绳有扩大分布的潜力，本研究利用线粒体ND2 DNA序列进行系统发育分析，探讨了该种的起源。入侵冲绳的卡罗林种。我们进一步使用了物种分布模型（MaxEnt）的基础上，在北美本土种群的分布，以确定生态适宜的地区在冲绳。核苷酸序列分析表明，入侵病毒A. carolinensis起源于墨西哥湾沿岸的西部和美国的内陆地区，并且冲绳上的一部分Anoles不是通过小笠原群岛引入的。MaxEnt预测结果表明，冲绳大部分地区适合A. carolinensis。因此，卡罗莱纳山慈姑在冲绳有扩大分布的潜力。预测结果表明，在年平均气温较高的地区和城市化地区，生境适宜性较高。冲绳北方地区夏季降水量高于北美地区，降低了冲绳的生境适宜性。对低温的适应、全球变暖导致的平均气温升高以及土地开发导致的开放环境的增加可能会扩大A.产于冲绳。因此，我们必须继续监测引进的人口，并警惕增加开放环境的城市规划可能导致其范围扩大的可能性。
The green anole Anolis carolinensis invaded the Ogasawara Islands in Japan, drove various native species to extinction, and its distribution expanded 14 years after initial establishment. A. carolinensis invaded Okinawa Island, but it has not expanded its distribution in more than 25 years, although its density is extremely high in the southern region. To determine whether A. carolinensis has the potential to expand its distribution on Okinawa Island, we performed phylogenetic analysis of mitochondrial ND2 DNA sequences to study the origin of A. carolinensis that invaded Okinawa Island. We further used a species distribution model (MaxEnt) based on the distribution of native populations in North America to identify ecologically suitable areas on Okinawa Island. Nucleotide sequence analysis shows that the invader A. carolinensis originated in the western part of the Gulf Coast and inland areas of the United States and that a portion of the anoles on Okinawa was not introduced via the Ogasawara Islands. The MaxEnt predictions indicate that most areas in Okinawa Island are suitable for A. carolinensis. Therefore, A. carolinensis may have the potential to expand its distribution in Okinawa Island. The predictions indicate that habitat suitability is high in areas of high annual mean temperature and urbanized areas. The values of precipitation in summer in the northern region of Okinawa Island were higher compared with those of North America, which reduced the habitat suitability in Okinawa Island. Adaptation to low temperatures, an increase in the mean temperature through global warming, and an increase in open environments through land development will likely expand the distribution of A. carolinensis in Okinawa Island. Therefore, we must continue to monitor the introduced populations and be alert to the possibility that city planning that increases open environments may cause their range to expand.