The importance of context dependence for understanding the effects of low-flow events on fish
The importance of context dependence for understanding the effects of low-flow events on fish
复制标题
背景依赖性对于理解低流量事件对鱼类的影响的重要性
DOI：
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发表时间：
2016
影响因子：
1.8
通讯作者：
Annika W. Walters
中科院分区：
文献类型：
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作者：
Annika W. Walters
由于大坝建设、引水和气候变化，溪流和河流的自然水文发生了广泛的变化。低流量事件频率的增加将通过改变栖息地可用性、资源可用性和繁殖线索来影响鱼类。我回顾了文献，以描述用于评估枯水事件和鱼类的方法、枯水事件对鱼类的主要影响以及相关的机械驱动因素。大多数研究集中在温带溪流上，具有可比性。河流流量的减少与鱼类种群的存活率、生长量和丰度的减少以及群落组成的变化有关，但影响是不同的。这种效果的可变性很可能是由语境依赖性造成的。提出了影响鱼类对枯水事件响应变化的三个主要背景因素：枯水事件的属性、生境的属性和鱼类的属性。意识到这些背景依赖的来源可以帮助管理人员解释和解释数据，预测鱼类群落的脆弱性，并确定适当的管理行动的优先顺序。
The natural hydrology of streams and rivers has been extensively altered by dam construction, water diversion, and climate change. An increased frequency of low-flow events will affect fish by changing habitat availability, resource availability, and reproductive cues. I reviewed the literature to characterize the approaches taken to assess low-flow events and fish, the main effects of low-flow events on fish, and the associated mechanistic drivers. Most studies are focused on temperate streams and are comparative in nature. Decreased stream flow is associated with decreased survival, growth, and abundance of fish populations and shifts in community composition, but effects are variable. This variability in effects is probably caused by context dependence. I propose 3 main sources of context dependence that drive the variation in fish responses to low-flow events: attributes of the low-flow event, attributes of the habitat, and attributes of the fish. Awareness of these sources of context dependence can help managers interpret and explain data, predict vulnerability of fish communities, and prioritize appropriate management actions.
影响因子：
30.7
作者：
Ledger, Mark E.;Brown, Lee E.;Woodward, Guy
通讯作者：
Woodward, Guy