Climate Change Data Portal
| DOI | 10.1111/eva.13663 |
| Local environments, not invasive hybridization, influence cardiac performance of native trout under acute thermal stress | |
| 发表日期 | 2024 |
| ISSN | 1752-4571 |
| 起始页码 | 17 |
| 结束页码 | 2 |
| 卷号 | 17期号:2 |
| 英文摘要 | Climate-induced expansion of invasive hybridization (breeding between invasive and native species) poses a significant threat to the persistence of many native species worldwide. In the northern U.S. Rocky Mountains, hybridization between native cutthroat trout and non-native rainbow trout has increased in recent decades due, in part, to climate-driven increases in water temperature. It has been postulated that invasive hybridization may enhance physiological tolerance to climate-induced thermal stress because laboratory studies indicate that rainbow trout have a higher thermal tolerance than cutthroat trout. Here, we assessed whether invasive hybridization improves cardiac performance response to acute water temperature stress of native wild trout populations. We collected trout from four streams with a wide range of non-native admixture among individuals and with different temperature and streamflow regimes in the upper Flathead River drainage, USA. We measured individual cardiac performance (maximum heart rate, MaxHR, and temperature at arrhythmia, ArrTemp) during laboratory trials with increasing water temperatures (10-28 degrees C). Across the study populations, we observed substantial variation in cardiac performance of individual trout when exposed to thermal stress. Notably, we found significant differences in the cardiac response to thermal regimes among native cutthroat trout populations, suggesting the importance of genotype-by-environment interactions in shaping the physiological performance of native cutthroat trout. However, rainbow trout admixture had no significant effect on cardiac performance (MaxHR and ArrTemp) within any of the three populations. Our results indicate that invasive hybridization with a warmer-adapted species does not enhance the cardiac performance of native trout under warming conditions. Maintaining numerous populations across thermally and hydrologically diverse stream environments will be crucial for native trout to adapt and persist in a warming climate. |
| 英文关键词 | admixture; cardiac performance; climate change; heart rate; introgression; invasive hybridization; physiological stress; rainbow trout; thermal tolerance; Westslope cutthroat trout |
| 语种 | 英语 |
| WOS研究方向 | Evolutionary Biology |
| WOS类目 | Evolutionary Biology |
| WOS记录号 | WOS:001167435700001 |
| 来源期刊 | EVOLUTIONARY APPLICATIONS
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/290009 |
| 作者单位 | University of Montana System; University of Montana; United States Department of the Interior; United States Geological Survey |
| 推荐引用方式 GB/T 7714 | . Local environments, not invasive hybridization, influence cardiac performance of native trout under acute thermal stress[J],2024,17(2). |
| APA | (2024).Local environments, not invasive hybridization, influence cardiac performance of native trout under acute thermal stress.EVOLUTIONARY APPLICATIONS,17(2). |
| MLA | "Local environments, not invasive hybridization, influence cardiac performance of native trout under acute thermal stress".EVOLUTIONARY APPLICATIONS 17.2(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
