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Drought-induced shift in tree response to climate in floodplain forests of Southeastern Europe.

A new interesting article has been published in Sci Rep. 2018 Nov 7;8(1):16495. doi: 10.1038/s41598-018-34875-w. and titled:

Drought-induced shift in tree response to climate in floodplain forests of Southeastern Europe.

Authors of this article are:

Mikac S, Žmegač A, Trlin D, Paulić V, Oršanić M, Anić I.

A summary of the article is shown below:

Floodplain forests are the most rapidly disappearing ecosystem in the world, especially in temperate regions of Europe where anthropogenic influence has been pronounced throughout history. Research on primeval forests is crucial to further our understanding of their natural dynamics and interaction with climate but is limited by the lack of such preserved forests. The aim of this study was to investigate how a primeval floodplain forest in Southeastern Europe has responded to climate variability during the last 250 years through comparison of tree growth and climate, canopy disturbance and recruitment dynamic of two dominant tree species with different tolerances to flooding/drought. Our analysis revealed induced stress caused by several consecutive severe drought events in the 1940s, which led to a significant increase in sensitivity to increasing temperatures and decreasing river water levels. This trend is particularly pronounced in pedunculate oak. Age structure analysis revealed one larger episode of oak regeneration culminating after periods of intense growth release. Such period co-occurs with summer drought, which is part of a complex system of natural disturbances and a significant natural driver of the cyclical regeneration of primeval oak ecosystems.

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