Timing mowing for maximal energy gain - Managing foraging habitat of wintering geese under extreme drought conditions
文献类型：期刊论文
| 作者 | Wang, Chenxi2; Xia, Shaoxia2; Yu, Xiubo2; Wen, Li3 |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 370页码:122360 |
| 关键词 | Extreme drought Phenological mismatch Wet meadow Mowing Wintering geese Poyang lake |
| DOI | 10.1016/j.jenvman.2024.122360 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The availability of high-quality food resources is a critical determinant of wildlife fitness. Over the past two decades, phenological mismatch - the temporal misalignment between animals' peak nutrient demand and optimal resource availability - has emerged as a significant conservation challenge. This issue is particularly worrisome for migratory birds, which must accumulate energy reserves to meet the elevated metabolic demands of migration between breeding and wintering grounds. In Poyang Lake, a crucial wintering ground along the East Asian-Australasian flyway, increasing asynchrony between vegetation growth and the migration of herbivorous waterbirds significantly impedes conservation efforts and presents a major management challenge for this Ramsar wetland. This study evaluates the efficacy of mowing, a grassland management measure, in regulating plant growth processes and restoring food resources for geese. In-situ mowing experiments were conducted with varying timings in Carex wet meadows, the primary foraging habitats of geese. Optimal mowing times were identified, and the maximum goose carrying capacity was assessed by comparing Carex growth and nutritional dynamics with goose dietary requirements. The results reveal that mowing effectively slows down the aging process of Carex, and protein content is identified as a critical limiting factor for geese foraging. Different mowing timings extend the suitable foraging period by 11-25 days. Estimates suggest varying carrying capacities with different mowing timings, supporting goose populations ranging from 133 to 2,046 in Changhuchi Lake during wintering. The optimal mowing window is early October, avoiding dates before late September and after late November. Moreover, multiple-stage mowing is recommended to accommodate different wintering stages. The study highlights mowing as a potential habitat restoration approach for goose conservation, effectively mitigating the challenges imposed by phenological mismatch directly and indirectly caused by anthropogenic activities. |
| WOS关键词 | WHITE-FRONTED GEESE ; ANSER-ERYTHROPUS ; RETENTION TIME ; CLIMATE-CHANGE ; DONGTING LAKE ; POYANG LAKE ; GROWTH ; DIET ; MISMATCH ; EVENTS |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:001311814600001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/207944]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Xia, Shaoxia |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 2.Dept Climate Change Energy Environm & Water, Sci & Insights, Parramatta, NSW 2150, Australia 3.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chenxi,Xia, Shaoxia,Yu, Xiubo,et al. Timing mowing for maximal energy gain - Managing foraging habitat of wintering geese under extreme drought conditions[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2024,370:122360. |
| APA | Wang, Chenxi,Xia, Shaoxia,Yu, Xiubo,&Wen, Li.(2024).Timing mowing for maximal energy gain - Managing foraging habitat of wintering geese under extreme drought conditions.JOURNAL OF ENVIRONMENTAL MANAGEMENT,370,122360. |
| MLA | Wang, Chenxi,et al."Timing mowing for maximal energy gain - Managing foraging habitat of wintering geese under extreme drought conditions".JOURNAL OF ENVIRONMENTAL MANAGEMENT 370(2024):122360. |
入库方式： OAI收割
来源：地理科学与资源研究所
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