<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The complex phenomenon of decline in European oak is currently triggered by changing climatic conditions and their consequences like heavy rains, local floods and pest development. Especially, pathogens from <italic>Phytophthora</italic> genus profit from soil saturation with water. They are alien invasive species, which attack and severely damage fine roots. In drought conditions occurring in the subsequent year, many oaks die as they encounter problem with water uptake. Additionally, insect defoliators followed by oak mildew infections accelerate the level of tree mortality. Secondary insects, butt and root pathogens are usually the final cause of death of many oaks. More research is needed in the direction to determine (i) measurable factors (e.g. chlorophyll florescence) that can indicate that the process of tree decline has already started, (ii) the correlation between the root decay and the crown symptoms (scanners, software), (iii) which combination of stressors stimulate the best development of pathogens that lead to the high plant mortality and (iv) the difference between the mortality caused by the native and the invasive <italic>Phytophthora</italic> species.</p></abstract>

The complex phenomenon of decline in European oak is currently triggered by changing climatic conditions and their consequences like heavy rains, local floods and pest development. Especially, pathogens from Phytophthora genus profit from soil saturation with water. They are alien invasive species, which attack and severely damage fine roots. In drought conditions occurring in the subsequent year, many oaks die as they encounter problem with water uptake. Additionally, insect defoliators followed by oak mildew infections accelerate the level of tree mortality. Secondary insects, butt and root pathogens are usually the final cause of death of many oaks. More research is needed in the direction to determine (i) measurable factors (e.g. chlorophyll florescence) that can indicate that the process of tree decline has already started, (ii) the correlation between the root decay and the crown symptoms (scanners, software), (iii) which combination of stressors stimulate the best development of pathogens that lead to the high plant mortality and (iv) the difference between the mortality caused by the native and the invasive Phytophthora species.

European oak decline phenomenon in relation to climatic changes

Laboratory of Molecular Biology, Forest Research Institute, Sękocin Stary, 05-090 Raszyn,

Białystok University of Technology, Forest Faculty, 17-200 Hajnówka,

Folia Forestalia Polonica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"European oak decline phenomenon in relation to climatic changes"}

The complex phenomenon of decline in European oak is currently triggered by changing climatic conditions and their consequences like heavy rains, local floods...

European oak decline phenomenon in relation to climatic changes

Published Online: Oct 08, 2016

Page range: 170 - 177

Received: Jun 22, 2016

Accepted: Aug 04, 2016

DOI: https://doi.org/10.1515/ffp-2016-0019

Keywords
spp., spp., climate change, pathogen, pests

© 2016 Nenad Keča et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

European oak decline phenomenon in relation to climatic changes

Published Online: Oct 08, 2016

Page range: 170 - 177

Received: Jun 22, 2016

Accepted: Aug 04, 2016

DOI: https://doi.org/10.1515/ffp-2016-0019

Keywordsspp., spp., climate change, pathogen, pests

© 2016 Nenad Keča et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
spp., spp., climate change, pathogen, pests