Climate Change Data Portal
| DOI | 10.1111/nph.19765 |
| Elevated [CO2] and temperature augment gas exchange and shift the fitness landscape in a montane forb | |
| 发表日期 | 2024 |
| ISSN | 0028-646X |
| EISSN | 1469-8137 |
| 英文摘要 | Climate change is simultaneously increasing carbon dioxide concentrations ([CO2]) and temperature. These factors could interact to influence plant physiology and performance. Alternatively, increased [CO2] may offset costs associated with elevated temperatures. Furthermore, the interaction between elevated temperature and [CO2] may differentially affect populations from along an elevational gradient and disrupt local adaptation. We conducted a multifactorial growth chamber experiment to examine the interactive effects of temperature and [CO2] on fitness and ecophysiology of diverse accessions of Boechera stricta (Brassicaceae) sourced from a broad elevational gradient in Colorado. We tested whether increased [CO2] would enhance photosynthesis across accessions, and whether warmer conditions would depress the fitness of high-elevation accessions owing to steep reductions in temperature with increasing elevation in this system. Elevational clines in [CO2] are not as evident, making it challenging to predict how locally adapted ecotypes will respond to elevated [CO2]. This experiment revealed that elevated [CO2] increased photosynthesis and intrinsic water use efficiency across all accessions. However, these instantaneous responses to treatments did not translate to changes in fitness. Instead, increased temperatures reduced the probability of reproduction for all accessions. Elevated [CO2] and increased temperatures interacted to shift the adaptive landscape, favoring lower elevation accessions for the probability of survival and fecundity. Our results suggest that elevated temperatures and [CO2] associated with climate change could have severe negative consequences, especially for high-elevation populations. |
| 英文关键词 | climate change; fitness; fitness landscape; gas exchange; photosynthesis; transpiration; water use efficiency |
| 语种 | 英语 |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| WOS记录号 | WOS:001207185200001 |
| 来源期刊 | NEW PHYTOLOGIST
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/308209 |
| 作者单位 | University System of Georgia; University of Georgia; University System of Georgia; University of Georgia; University System of Georgia; University of Georgia |
| 推荐引用方式 GB/T 7714 | . Elevated [CO2] and temperature augment gas exchange and shift the fitness landscape in a montane forb[J],2024. |
| APA | (2024).Elevated [CO2] and temperature augment gas exchange and shift the fitness landscape in a montane forb.NEW PHYTOLOGIST. |
| MLA | "Elevated [CO2] and temperature augment gas exchange and shift the fitness landscape in a montane forb".NEW PHYTOLOGIST (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。
