Climate warming will increase chances of hybridization and introgression between two Takydromus lizards (Lacertidae)

作者：Kun Guo, Jun Zhong, Fan Xie, Lin Zhu, Yan‐Fu Qu, Xiang Ji · 发表于：Ecology and Evolution · 年份：2021 · DOI：10.1002/ece3.7671 · 被引用次数：31 · 研究领域：Species Distribution and Climate Change、Amphibian and Reptile Biology、Animal Behavior and Reproduction

Abstract Coexisting species may experience population and range changes alone or jointly in response to environmental change. Here, we used six climate variables and ten modeling algorithms to predict the distribution of two Takydromus species ( T . septentrionalis and T . sexlineatus ) in China. We identified the sympatric and allopatric areas by comparing projections between the two species based on habitat suitability under present and future climate scenarios. We constructed the hypervolumes of six climate variables for the two species and then evaluated overlaps between hypervolumes. From this study, we know the following. First, minimum temperature of coldest month contributes the most to the prediction of habitat suitability. Second, habitats suitable for the two species will shift northward in response to climate warming. Third, the range of T. sexlineatus will expand across the four future time intervals before 2,100, namely the 2021–2040, 2041–2060, 2061–2080, and 2081–2100 intervals, under both Shared socioeconomic pathway (SSP) 245 and SSP585 scenarios, and the range of T. septentrionalis will also expand in the future except at the 2081–2100 interval under the SSP585 scenario. Fourth, the sympatric areas will contract or expand under the SSP245 scenario and expand across the four future time intervals before 2,100 under the SSP585 scenario. Fifth, the niche hypervolumes of the two species partially overlapped, and the differences in niche centroid show some degre...