Tail‐dependence of masting synchrony results in continent‐wide seed scarcity,Ecology Letters

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Tail‐dependence of masting synchrony results in continent‐wide seed scarcity
Ecology Letters ( IF 7.6 ) Pub Date : 2024-07-12 , DOI: 10.1111/ele.14474
Jakub Szymkowiak _{1,

2} , Jessie Foest ₃ , Andrew Hacket-Pain ₃ , Valentin Journé ₁ , Davide Ascoli ₄ , Michał Bogdziewicz ₁

Affiliation

Spatial synchrony may be tail‐dependent, meaning it is stronger for peaks rather than troughs, or vice versa. High interannual variation in seed production in perennial plants, called masting, can be synchronized at subcontinental scales, triggering extensive resource pulses or famines. We used data from 99 populations of European beech (Fagus sylvatica) to examine whether masting synchrony differs between mast peaks and years of seed scarcity. Our results revealed that seed scarcity occurs simultaneously across the majority of the species range, extending to populations separated by distances up to 1800 km. Mast peaks were spatially synchronized at distances up to 1000 km and synchrony was geographically concentrated in northeastern Europe. Extensive synchrony in the masting lower tail means that famines caused by beech seed scarcity are amplified by their extensive spatial synchrony, with diverse consequences for food web functioning and climate change biology.

中文翻译：

肥大同步性的尾部依赖性导致整个大陆种子稀缺

空间同步性可能是尾部相关的，这意味着它对于峰值比波谷更强，反之亦然。多年生植物种子产量的巨大年际变化（称为肥大）可以在次大陆范围内同步，引发广泛的资源脉冲或饥荒。我们使用了来自 99 个欧洲山毛榉种群的数据（水青冈）来检查肥大高峰和种子稀缺年份之间的肥大同步性是否不同。我们的结果显示，大多数物种范围内同时发生种子稀缺，甚至延伸到相距 1800 公里的种群。桅杆峰在空间上同步的距离可达 1000 公里，并且同步在地理上集中在东北欧。桅杆下尾的广泛同步意味着山毛榉种子稀缺引起的饥荒因其广泛的空间同步而被放大，对食物网功能和气候变化生物学产生不同的后果。

更新日期：2024-07-12

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