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| DOI | 10.1002/ecs2.4741 |
| Stochastic metapopulation dynamics of a threatened amphibian to improve water delivery | |
| 发表日期 | 2024 |
| ISSN | 2150-8925 |
| 起始页码 | 15 |
| 结束页码 | 1 |
| 卷号 | 15期号:1 |
| 英文摘要 | Water extraction and climate change are altering the availability of surface water globally, thereby contributing to amphibian population declines. The managed delivery of water to benefit environmental values (environmental watering) is a promising conservation technique that can support amphibian recruitment and maintain viable populations. Environmental water can be delivered in various spatial patterns and with different frequencies, but comparing the effectiveness of competing strategies is complicated by variable and interactive environmental processes. We built a spatially explicit, stochastic, hydroecological metapopulation model to compare the effects of five environmental-watering scenarios on the probability of persistence of threatened southern bell frogs (Litoria raniformis) in a major river reach in southern Australia. We compared a no-intervention control to two managed watering frequencies (moderate and frequent) delivered in two spatial designs (managed wetlands grouped or spread across the reach). More frequent water provision to intervention sites improved the reach-wide (metapopulation) probability of persistence, and spreading intervention sites across the reach improved persistence more than grouping intervention sites together. When re-examined under severe drought conditions, L. raniformis had a 0.04 probability of persistence without intervention, which improved to 0.56 with high watering frequency. Model-guided environmental water provision can improve reach-wide persistence of amphibian metapopulations by guiding spatial and temporal delivery patterns to reduce the risk of extinction. |
| 英文关键词 | amphibian; environmental water provision; frog; hydroperiod; Litoria raniformis; river regulation; stochastic population model |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| WOS记录号 | WOS:001153326000003 |
| 来源期刊 | ECOSPHERE
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/297092 |
| 作者单位 | Flinders University South Australia; Charles Sturt University; Commonwealth Scientific & Industrial Research Organisation (CSIRO); Flinders University South Australia; South Australian Research & Development Institute (SARDI) |
| 推荐引用方式 GB/T 7714 | . Stochastic metapopulation dynamics of a threatened amphibian to improve water delivery[J],2024,15(1). |
| APA | (2024).Stochastic metapopulation dynamics of a threatened amphibian to improve water delivery.ECOSPHERE,15(1). |
| MLA | "Stochastic metapopulation dynamics of a threatened amphibian to improve water delivery".ECOSPHERE 15.1(2024). |
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