Synchronous effects produce cycles in deer populations and deer‐vehicle collisions,Ecology Letters

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Synchronous effects produce cycles in deer populations and deer‐vehicle collisions
Ecology Letters ( IF 7.6 ) Pub Date : 2020-12-13 , DOI: 10.1111/ele.13650
Thomas L. Anderson _{1,

2} , Lawrence W. Sheppard ₂ , Jonathan A. Walter _{2,

3} , Robert E. Rolley ₄ , Daniel C. Reuman _{2,

5}

Affiliation

Population cycles are fundamentally linked with spatial synchrony, the prevailing paradigm being that populations with cyclic dynamics are easily synchronised. That is, population cycles help give rise to spatial synchrony. Here we demonstrate this process can work in reverse, with synchrony causing population cycles. We show that timescale‐specific environmental effects, by synchronising local population dynamics on certain timescales only, cause major population cycles over large areas in white‐tailed deer. An important aspect of the new mechanism is specificity of synchronising effects to certain timescales, which causes local dynamics to sum across space to a substantial cycle on those timescales. We also demonstrate, to our knowledge for the first time, that synchrony can be transmitted not only from environmental drivers to populations (deer), but also from there to human systems (deer‐vehicle collisions). Because synchrony of drivers may be altered by climate change, changes to population cycles may arise via our mechanism.

中文翻译：

同步效应在鹿群和鹿车辆碰撞中产生循环

人口周期从根本上与空间同步相关，流行的范例是具有循环动力学的人口易于同步。也就是说，人口周期有助于引起空间同步。在这里，我们演示了此过程可以反向进行，同时引起人口周期。我们显示，通过仅在某些时间尺度上同步本地种群动态，特定于时间尺度的环境影响会在大面积的白尾鹿中引起主要的种群周期。新机制的一个重要方面是将效果与某些时标同步的特异性，这会导致局部动态在这些时标上跨空间求和，形成一个实质性的循环。据我们所知，我们还首次展示了同步不仅可以从环境驾驶员传递到种群（鹿），而且可以从那里传递给人类系统（鹿与车辆的碰撞）。由于气候变化可能会改变驾驶员的同步性，因此通过我们的机制可能会导致人口周期发生变化。

更新日期：2021-01-11

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