Masting is uncommon in trees that depend on mutualist dispersers in the context of global climate and fertility gradients
Masting is uncommon in trees that depend on mutualist dispersers in the context of global climate and fertility gradients
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在全球气候和肥力梯度的背景下，依赖共生分散体的树木的桅杆并不常见
DOI：
10.1038/s41477-023-01446-5
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发表时间：
2023
期刊：
影响因子：
18
通讯作者：
Calama, Rafael
中科院分区：
文献类型：
--
作者：
Qiu, Tong;Aravena, Marie-Claire;Ascoli, Davide;Bergeron, Yves;Bogdziewicz, Michal;Boivin, Thomas;Bonal, Raul;Caignard, Thomas;Cailleret, Maxime;Calama, Rafael
密集的好处（在滞后的时间间隔产生挥发性的、准同步的种子）包括满足种子捕食者，但这些好处是以互惠的花粉和种子传播者为代价的。如果桅杆的进化代表了这些利益和成本之间的平衡，我们预计严重依赖互惠分散者的物种会避免桅杆。这些影响在不同的气候和地点肥力的背景下发挥作用，这些物种在养分需求上差异很大。已发表数据的荟萃分析侧重于种群尺度的变化，从而忽略了树木内部的周期性和树木之间的同步性。根据全球1200万年的原始数据，我们量化了以前从未一起分析过的桅杆的三个组成部分：(i)波动性，定义为频率加权的年度变化；周期性，表示高种子年之间的滞后；(3)同步性，表示树与树之间的相关性。结果表明，依赖于共生分散器的物种的最大规避（低波动性和低同步性）比任何其他效应都能解释更多的变异。需要养分的物种具有较低的波动性，而在营养丰富和温暖/潮湿的地点最常见的物种具有较短的周期。在寒冷/干燥的地点，对脊椎动物分散物的依赖比在潮湿的热带地区要少，而在这种气候条件下，桅杆的流行与此相吻合。互惠分散者抵消了捕食者的饱食所带来的好处，进一步平衡了气候、场地肥力和养分需求的影响。
The benefits of masting (volatile, quasi-synchronous seed production at lagged intervals) include satiation of seed predators, but these benefits come with a cost to mutualist pollen and seed dispersers. If the evolution of masting represents a balance between these benefits and costs, we expect mast avoidance in species that are heavily reliant on mutualist dispersers. These effects play out in the context of variable climate and site fertility among species that vary widely in nutrient demand. Meta-analyses of published data have focused on variation at the population scale, thus omitting periodicity within trees and synchronicity between trees. From raw data on 12 million tree-years worldwide, we quantified three components of masting that have not previously been analysed together: (i) volatility, defined as the frequency-weighted year-to-year variation; (ii) periodicity, representing the lag between high-seed years; and (iii) synchronicity, indicating the tree-to-tree correlation. Results show that mast avoidance (low volatility and low synchronicity) by species dependent on mutualist dispersers explains more variation than any other effect. Nutrient-demanding species have low volatility, and species that are most common on nutrient-rich and warm/wet sites exhibit short periods. The prevalence of masting in cold/dry sites coincides with climatic conditions where dependence on vertebrate dispersers is less common than in the wet tropics. Mutualist dispersers neutralize the benefits of masting for predator satiation, further balancing the effects of climate, site fertility and nutrient demands.
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土壤养分供应调节肥大播种草的温度诱导信号。
影响因子：
4.8
作者：
Andrew J. Tanentzap;William G. Lee;D. Coomes
通讯作者：
D. Coomes
DOI：
10.1098/rstb.2021.0116
发表时间：
2021-10
期刊：
Philosophical Transactions of the Royal Society B
影响因子：
--
作者：
A. Satake;D. Kelly
通讯作者：
A. Satake;D. Kelly
随着温度升高，橡树的肥大行为发生了十年的变化
影响因子：
5.5
作者：
M. Shibata;T. Masaki;T. Yagihashi;T. Shimada;T. Saitoh
通讯作者：
T. Saitoh
肥育的成本和效益：花梨幼苗存活的负密度依赖性不会降低规模经济。
影响因子：
9.4
作者：
Barbara Seget;M. Bogdziewicz;J. Holeksa;Mateusz Ledwoń;Fiona Milne;Łukasz Piechnik;Alicja Rzepczak;M. Żywiec
通讯作者：
M. Żywiec
定义跨物种和研究的肥大播种年限的定量方法
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
J. M. LaMontagne;S. Boutin
通讯作者：
S. Boutin