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| DOI | 10.1098/rsos.240050 |
| Decreasing body size is associated with reduced calving probability in critically endangered North Atlantic right whales | |
| 发表日期 | 2024 |
| ISSN | 2054-5703 |
| 起始页码 | 11 |
| 结束页码 | 2 |
| 卷号 | 11期号:2 |
| 英文摘要 | Body size is key to many life-history processes, including reproduction. Across species, climate change and other stressors have caused reductions in the body size to which animals can grow, called asymptotic size, with consequences for demography. A reduction in mean asymptotic length was documented for critically endangered North Atlantic right whales, in parallel with declines in health and vital rates resulting from human activities and environmental changes. Here, we tested whether smaller body size was associated with lower reproductive output, using a state-space model for individual health, survival and reproduction that quantifies the mechanistic links between these processes. Body size (as represented by the cube of length) was strongly associated with a female's calving probability at each reproductive opportunity. This relationship explained 62% of the variation in calving among reproductive females, along with their decreasing health (20%). The effects of decreasing mean body size on reproductive performance are another concerning indication of the worsening prospects for this species and many others affected by environmental change, requiring a focus of conservation and management interventions on improving conditions that affect reproduction as well as reducing mortality. |
| 英文关键词 | Bayesian state-space model; body size; capital breeding; Eubalaena glacialis; health; length |
| 语种 | 英语 |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:001176171600004 |
| 来源期刊 | ROYAL SOCIETY OPEN SCIENCE
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/287695 |
| 作者单位 | University of St Andrews; University of St Andrews; Woods Hole Oceanographic Institution; Woods Hole Oceanographic Institution; Duke University |
| 推荐引用方式 GB/T 7714 | . Decreasing body size is associated with reduced calving probability in critically endangered North Atlantic right whales[J],2024,11(2). |
| APA | (2024).Decreasing body size is associated with reduced calving probability in critically endangered North Atlantic right whales.ROYAL SOCIETY OPEN SCIENCE,11(2). |
| MLA | "Decreasing body size is associated with reduced calving probability in critically endangered North Atlantic right whales".ROYAL SOCIETY OPEN SCIENCE 11.2(2024). |
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