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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.16927
|2 doi
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|a pubmed25n1205.xml
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|a (DE-627)NLM361860293
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|a (NLM)37688536
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a López-Ballesteros, Ana
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Topography modulates climate sensitivity of multidecadal trends of holm oak decline
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| 264 |
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|c 2023
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 17.10.2023
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|a published: Print-Electronic
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|a Citation Status Publisher
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| 520 |
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|a © 2023 John Wiley & Sons Ltd.
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|a Forest decline events have increased worldwide over the last decades being holm oak (Quercus ilex L.) one of the tree species with the most worrying trends across Europe. Since this is one of the tree species with the southernmost distribution within the European continent, its vulnerability to climate change is a phenomenon of enormous ecological importance. Previous research identified drought and soil pathogens as the main causes behind holm oak decline. However, despite tree health loss is a multifactorial phenomenon where abiotic and biotic factors interact in time and space, there are some abiotic factors whose influence has been commonly overlooked. Here, we evaluate how land use (forests versus savannas), topography, and climate extremes jointly determine the spatiotemporal patterns of holm oak defoliation trends over almost three decades (1987-2014) in Spain, where holm oak represents the 25% of the national forested area. We found an increasing defoliation trend in 119 out of the total 134 holm oak plots evaluated, being this defoliation trend significantly higher in forests compared with savannas. Moreover, we have detected that the interaction between topography (which covariates with the land use) and summer precipitation anomalies explains trends of holm oak decline across the Mediterranean region. While a higher occurrence of dry summers increases defoliation trends in steeper terrains where forests dominate, an inverse relationship was found in flatter terrains where savannas are mainly located. These opposite relationships suggest different causal mechanisms behind decline. Whereas hydric stress is likely to occur in steeper terrains where soil water holding capacity is limited, soil waterlogging usually occurs in flatter terrains what increases tree vulnerability to soil pathogens. Our results contribute to the growing evidence of the influence of local topography on forest resilience and could assist in the identification of potential tree decline hotspots and its main causes over the Mediterranean region
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a Mediterranean forest
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| 650 |
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4 |
|a climate change
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| 650 |
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4 |
|a climatic anomalies
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| 650 |
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4 |
|a coppices
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| 650 |
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4 |
|a defoliation
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| 650 |
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4 |
|a dehesas
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| 650 |
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4 |
|a tree health
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| 700 |
1 |
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|a Rodríguez-Caballero, Emilio
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Moreno, Gerardo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Escribano, Paula
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hereş, Ana-Maria
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yuste, Jorge Curiel
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 29(2023), 22 vom: 25. Nov., Seite 6336-6349
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnas
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| 773 |
1 |
8 |
|g volume:29
|g year:2023
|g number:22
|g day:25
|g month:11
|g pages:6336-6349
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/gcb.16927
|3 Volltext
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