Climate Change Data Portal
| DOI | 10.1111/aec.13480 |
| Intra-specific variation and climate differentially shape the thermal germination niches of three co-occurring woodland forbs | |
| 发表日期 | 2024 |
| ISSN | 1442-9985 |
| EISSN | 1442-9993 |
| 起始页码 | 49 |
| 结束页码 | 2 |
| 卷号 | 49期号:2 |
| 英文摘要 | Understanding plant responses to temperature is critical for predicting their vulnerability to global warming and for planning management responses. Germination is a key life-stage, strongly regulated by temperature, that affects the potential for plant populations to persist. Here, we compared the thermal germination niches of three unrelated, declining woodland forb species - Arthropodium fimbriatum (Asparagaceae), Bulbine bulbosa (Asphodelaceae), Microseris walteri (Asteraceae) - across common temperature and precipitation gradients, to characterize the relationships with home-site climate, and associated implications for ecological restoration in a changing climate. Open-pollinated seed were sampled from 14-15 populations per species across an aridity gradient in south-eastern Australia. Germination responses for each population were tested in controlled temperature cabinets under five temperature regimes encompassing contemporary and projected future temperatures. Optimum germination temperature and thermal germination niche were characterized and assessed for associations with home-site climate and potential germination under projected climate change. The three species showed significant intra-specific variation in the thermal germination niche. Optimum germination temperature was correlated with home-site climate, suggesting adaptive variation among populations in germination requirements. However, the pattern of variation in optimum germination across the environmental gradients was not always consistent among the species. Future temperatures projected under climate change tended to be outside the current thermal germination niche for all species, indicating potential benefits of incorporating pre-adapted populations in ecological restoration. Climate-related intra-specific variation in the thermal germination niche provides evidence for local adaptation to climate in all three forb species and suggests potential differences among populations in vulnerability to global warming. These results emphasize the importance of understanding the extent of intra-specific variation in key life history traits to better manage and conserve populations and restore their ecosystems as climates change. |
| 英文关键词 | Arthropodium fimbriatum; Bulbine bulbosa; climate change; forb; germination; Microseris walteri; temperature; thermal niche |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| WOS记录号 | WOS:001157884200001 |
| 来源期刊 | AUSTRAL ECOLOGY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/287216 |
| 作者单位 | University of Tasmania; University of Tasmania; Commonwealth Scientific & Industrial Research Organisation (CSIRO); Commonwealth Scientific & Industrial Research Organisation (CSIRO); Commonwealth Scientific & Industrial Research Organisation (CSIRO) |
| 推荐引用方式 GB/T 7714 | . Intra-specific variation and climate differentially shape the thermal germination niches of three co-occurring woodland forbs[J],2024,49(2). |
| APA | (2024).Intra-specific variation and climate differentially shape the thermal germination niches of three co-occurring woodland forbs.AUSTRAL ECOLOGY,49(2). |
| MLA | "Intra-specific variation and climate differentially shape the thermal germination niches of three co-occurring woodland forbs".AUSTRAL ECOLOGY 49.2(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。
