Post‐glacial determinants of regional species pools in alpine grasslands
Post‐glacial determinants of regional species pools in alpine grasslands
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高寒草原区域物种库的冰后决定因素
DOI：
10.1111/geb.13274
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发表时间：
2021
影响因子：
6.4
通讯作者：
Giusso del Galdo, Gianpietro
中科院分区：
文献类型：
--
作者：
Jiménez‐Alfaro, Borja;Abdulhak, Sylvain;Attorre, Fabio;Bergamini, Ariel;Carranza, Maria Laura;Chiarucci, Alessandro;Ćušterevska, Renata;Dullinger, Stefan;Gavilán, Rosario G.;Giusso del Galdo, Gianpietro
阿尔卑斯山脉的栖息地支持着独特的生物多样性，这些生物多样性仅限于当前间冰期的高海拔地区。这些生境中的植物多样性可能会对面积、环境、连通性和与世隔绝做出反应，但这些因素很少被统一评估。本文调查了高山草原区域性物种库的主要决定因素及其组成物种群的响应。1928-2019年期间欧洲北纬50°以下的山脉。主要分类群研究维管植物。方法我们编制了23个地区的高山草原物种库，其中高山物种794种，非高山物种2094种。我们使用物种-面积关系来检验高山地区的程度对区域丰富度的影响，并使用混合效应模型来比较12个空间和环境预测因子的影响。物种组成的差异通过广义差异模型和扩散方向系数来评估区域之间的历史联系。结果池塘的大小部分地由当前高山地区来解释，但其他预测因子在很大程度上对区域差异做出了贡献。高山物种的数量受面积、钙质基岩、地形异质性和区域隔离的影响，而非高山物种对连通性和气候的响应更好。高山物种的地域差异可以用隔离和降水来解释，而非高山物种只对隔离有反应。过去的扩散路线与纬度相关，高山物种在区域之间表现出更强的联系。主要结论除了面积效应外，土壤、地形和时空决定因素对于了解高山生境区域物种库的组织是重要的。高山物种的数量与避难所和与世隔绝特别相关，但它们的组成是由过去的扩散和冰川后的环境过滤所解释的，而非高山物种的数量通常受到区域植物群的影响。对高山生物多样性动态的新研究应该结合区域物种储存库的决定因素和不同生态概况的物种的反应。
AimAlpine habitats support unique biodiversity confined to high‐elevation areas in the current interglacial. Plant diversity in these habitats may respond to area, environment, connectivity and isolation, yet these factors have been rarely evaluated in concert. Here we investigate major determinants of regional species pools in alpine grasslands, and the responses of their constituent species groups.LocationEuropean mountains below 50° N.Time periodBetween 1928 and 2019.Major taxa studiedVascular plants.MethodsWe compiled species pools from alpine grasslands in 23 regions, including 794 alpine species and 2,094 non‐alpines. We used species–area relationships to test the influence of the extent of alpine areas on regional richness, and mixed‐effects models to compare the effects of 12 spatial and environmental predictors. Variation in species composition was addressed by generalized dissimilarity models and by a coefficient of dispersal direction to assess historical links among regions.ResultsPool sizes were partially explained by current alpine areas, but the other predictors largely contributed to regional differences. The number of alpine species was influenced by area, calcareous bedrock, topographic heterogeneity and regional isolation, while non‐alpines responded better to connectivity and climate. Regional dissimilarity of alpine species was explained by isolation and precipitation, but non‐alpines only responded to isolation. Past dispersal routes were correlated with latitude, with alpine species showing stronger connections among regions.Main conclusionsBesides area effects, edaphic, topographic and spatio‐temporal determinants are important to understand the organization of regional species pools in alpine habitats. The number of alpine species is especially linked to refugia and isolation, but their composition is explained by past dispersal and post‐glacial environmental filtering, while non‐alpines are generally influenced by regional floras. New research on the dynamics of alpine biodiversity should contextualize the determinants of regional species pools and the responses of species with different ecological profiles.
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影响因子：
3.9
作者：
P. Sklenář;I. Hedberg;A. Cleef
通讯作者：
P. Sklenář;I. Hedberg;A. Cleef
第纳里克阿尔卑斯山（西巴尔干，东南欧）高山植被的植物地理和句法多样性
影响因子：
2.5
作者：
Redzic Sulejman
通讯作者：
Redzic Sulejman
山顶上的北极高山植物：与岛屿生物地理学理论的一致
DOI：
10.1086/283941
发表时间：
1982
期刊：
The American Naturalist
影响因子：
--
作者：
John F. Riebesell
通讯作者：
John F. Riebesell
受近期气候变暖影响，地中海高山社区干旱草原专家的减少
影响因子：
2.8
作者：
B. Jiménez‐Alfaro;R. Gavilán;A. Escudero;J. Iriondo;F. Fernández‐González
通讯作者：
F. Fernández‐González
高山植物群落沿海拔和地形梯度的生物地理解构
影响因子：
2.8
作者：
B. Jiménez‐Alfaro;C. Marcenó;Á. Bueno;R. Gavilán;J. Obeso
通讯作者：
J. Obeso