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Biogeographic historical legacies in the net primary productivity of Northern Hemisphere forests.
Ecology Letters ( IF 7.6 ) Pub Date : 2020-02-21 , DOI: 10.1111/ele.13481
Timo Conradi 1, 2 , Koenraad Van Meerbeek 3 , Alejandro Ordonez 1, 4 , Jens-Christian Svenning 1, 4
Affiliation  

It has been suggested that biogeographic historical legacies in plant diversity may influence ecosystem functioning. This is expected because of known diversity effects on ecosystem functions, and impacts of historical events such as past climatic changes on plant diversity. However, empirical evidence for a link between biogeographic history and present-day ecosystem functioning is still limited. Here, we explored the relationships between Late-Quaternary climate instability, species-pool size, local species and functional diversity, and the net primary productivity (NPP) of Northern Hemisphere forests using structural equation modelling. Our study confirms that past climate instability has negative effects on plant functional diversity and through that on NPP, after controlling for present-day climate, soil conditions, stand biomass and age. We conclude that global models of terrestrial plant productivity need to consider the biogeographical context to improve predictions of plant productivity and feedbacks with the climate system.

中文翻译:

北半球森林净初级生产力的生物地理历史遗迹。

有人认为,植物多样性的生物地理历史遗迹可能影响生态系统的功能。由于已知的多样性对生态系统功能的影响以及历史事件(例如过去的气候变化对植物多样性的影响)的影响,这是可以预期的。但是,有关生物地理历史和当今生态系统功能之间联系的经验证据仍然有限。在这里,我们使用结构方程模型探索了第四纪后期气候不稳定,物种库大小,当地物种和功能多样性与北半球森林净初级生产力(NPP)之间的关系。我们的研究证实,在控制了当今的气候,土壤条件,林分生物量和年龄之后,过去的气候不稳定性会对植物功能多样性和NPP产生负面影响。
更新日期:2020-02-21
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