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<export-example>
  <doc>
    <id>328</id>
    <completedYear>2018</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>17</pageNumber>
    <edition/>
    <issue>9</issue>
    <volume/>
    <type>article</type>
    <publisherName>Frontiers Media S.A.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>2018-11-13</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Importance of Ecological Variables in Explaining Population Dynamics of Three Important Pine Pest Insects</title>
    <abstract language="deu">Climate change challenges forest vitality both directly by increasing drought and heat periods and indirectly, e.g., by creating favorable conditions for mass outbreaks of phyllophagous insects. The large forests dominated by Scots pine (Pinus sylvestris L.) that cover the lowland regions in northeast Germany have already been affected regularly by cyclic mass propagations of defoliating insect species in the past with climate projections implying an even more advantageous environment for devastating outbreaks in the future. To improve predictive and responsive capacities we have investigated a wide range of ecological parameters to identify those most strongly related to past outbreak waves of three central species. In total, we analyzed 3,748 variables covering stand and neighborhood properties, site quality, and climatic conditions for an area of roughly 750,000 ha of pine forests in the period 2002–2016. To reflect sensitivity against varying climate, we computed “floating windows” in relation to critical phenological phases of the respective insects. The parameters with the highest explanatory power resulted from the variable importance measures of the Random Forest (RF) methodology and have been evaluated by a 10-fold cross-validation process. Our findings closely reflect the known specific gradation patterns and show that relative variable importance varies with species. While Lymantria monacha L. feeding was mainly dependent on the surroundings of the respective stand, Diprion pini L. proved to be almost exclusively susceptible to climatic effects in its population dynamics. Dendrolimus pini L. exhibited a mixed pattern of variable importance involving both climatic and forest structure parameters. In many cases the obtained statistical results support well-known ecological cause-effect relations and long-term population change dynamics. The RF delivered very high levels of sensitivity and specificity in the developed classifications and proved to be an excellent tool to handle the large amounts of data utilized for this study. While the presented classification approach may already support a better prognosis of the amplitude during the outbreak culmination, the obtained (most important) variables are proposed as preferable covariates for modeling population dynamics of the investigated insect species.</abstract>
    <parentTitle language="eng">Frontiers in Plant Science</parentTitle>
    <identifier type="doi">10.3389/fpls.2018.01667</identifier>
    <identifier type="issn">1664-462X</identifier>
    <identifier type="urn">urn:nbn:de:kobv:eb1-opus-3285</identifier>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Rainer Hentschel</author>
    <author>Katrin Möller</author>
    <author>Aline Wenning</author>
    <author>Annett Degenhardt</author>
    <author>Jens Schröder</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ecological modeling</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Random Forest</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>mass outbreak</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Pinus sylvestris</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Lymantria monacha</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dendrolimus pini</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Diprion pini</value>
    </subject>
    <collection role="open_access" number="">open_access</collection>
    <collection role="institutes" number="">Fachbereich Wald und Umwelt</collection>
    <collection role="Hochschulbibliographie" number=""/>
    <collection role="Hochschulbibliographie" number="">Zweitveröffentlichung</collection>
    <collection role="Hochschulbibliographie" number="">Referiert</collection>
    <thesisPublisher>Hochschule für nachhaltige Entwicklung Eberswalde</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-hnee/files/328/fpls-09-01667.pdf</file>
  </doc>
  <doc>
    <id>549</id>
    <completedYear>2020</completedYear>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>4521</pageFirst>
    <pageLast>4537</pageLast>
    <pageNumber>17</pageNumber>
    <edition/>
    <issue>8</issue>
    <volume>26</volume>
    <type>article</type>
    <publisherName>Wiley</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Growth and resilience responses of Scots pine to extreme droughts across Europe depend on predrought growth conditions</title>
    <abstract language="eng">Global climate change is expected to further raise the frequency and severity of extreme events, such as droughts. The effects of extreme droughts on trees are difficult to disentangle given the inherent complexity of drought events (frequency, severity, duration, and timing during the growing season). Besides, drought effects might be modulated by trees’ phenotypic variability, which is, in turn, affected by long-term local selective pressures and management legacies. Here we investigated the magnitude and the temporal changes of tree-level resilience (i.e., resistance, recovery, and resilience) to extreme droughts. Moreover, we assessed the tree-, site-, and drought-related factors and their interactions driving the tree-level resilience to extreme droughts. We used a tree-ring network of the widely distributed Scots pine (Pinus sylvestris) along a 2,800 km latitudinal gradient from southern Spain to northern Germany. We found that the resilience to extreme drought decreased in mid-elevation and low productivity sites from 1980–1999 to 2000–2011 likely due to more frequent and severe droughts in the later period. Our study showed that the impact of drought on tree-level resilience was not dependent on its latitudinal location, but rather on the type of sites trees were growing at and on their growth performances (i.e., magnitude and variability of growth) during the predrought period. We found significant interactive effects between drought duration and tree growth prior to drought, suggesting that Scots pine trees with higher magnitude and variability of growth in the long term are more vulnerable to long and severe droughts. Moreover, our results indicate that Scots pine trees that experienced more frequent droughts over the long-term were less resistant to extreme droughts. We, therefore, conclude that the physiological resilience to extreme droughts might be constrained by their growth prior to drought, and that more frequent and longer drought periods may overstrain their potential for acclimation.</abstract>
    <parentTitle language="eng">Global Change Biology</parentTitle>
    <identifier type="doi">10.1111/gcb.15153</identifier>
    <identifier type="urn">urn:nbn:de:kobv:eb1-opus-5496</identifier>
    <identifier type="issn">1365-2486</identifier>
    <enrichment key="opus.import.data">@articlehttps://doi.org/10.1111/gcb.15153, author = Bose, Arun K. and Gessler, Arthur and Bolte, Andreas and Bottero, Alessandra and Buras, Allan and Cailleret, Maxime and Camarero, J. Julio and Haeni, Matthias and Hereş, Ana-Maria and Hevia, Andrea and Lévesque, Mathieu and Linares, Juan C. and Martinez-Vilalta, Jordi and Matías, Luis and Menzel, Annette and Sánchez-Salguero, Raúl and Saurer, Matthias and Vennetier, Michel and Ziche, Daniel and Rigling, Andreas, title = Growth and resilience responses of Scots pine to extreme droughts across Europe depend on predrought growth conditions, journal = Global Change Biology, volume = 26, number = 8, pages = 4521-4537, keywords = acclimation, latitudinal gradient, Pinus sylvestris, predisposition, tree rings, doi = https://doi.org/10.1111/gcb.15153, url = https://onlinelibrary.wiley.com/doi/abs/10.1111/gcb.15153, eprint = https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15153, abstract = Abstract Global climate change is expected to further raise the frequency and severity of extreme events, such as droughts. The effects of extreme droughts on trees are difficult to disentangle given the inherent complexity of drought events (frequency, severity, duration, and timing during the growing season). Besides, drought effects might be modulated by trees’ phenotypic variability, which is, in turn, affected by long-term local selective pressures and management legacies. Here we investigated the magnitude and the temporal changes of tree-level resilience (i.e., resistance, recovery, and resilience) to extreme droughts. Moreover, we assessed the tree-, site-, and drought-related factors and their interactions driving the tree-level resilience to extreme droughts. We used a tree-ring network of the widely distributed Scots pine (Pinus sylvestris) along a 2,800 km latitudinal gradient from southern Spain to northern Germany. We found that the resilience to extreme drought decreased in mid-elevation and low productivity sites from 1980–1999 to 2000–2011 likely due to more frequent and severe droughts in the later period. Our study showed that the impact of drought on tree-level resilience was not dependent on its latitudinal location, but rather on the type of sites trees were growing at and on their growth performances (i.e., magnitude and variability of growth) during the predrought period. We found significant interactive effects between drought duration and tree growth prior to drought, suggesting that Scots pine trees with higher magnitude and variability of growth in the long term are more vulnerable to long and severe droughts. Moreover, our results indicate that Scots pine trees that experienced more frequent droughts over the long-term were less resistant to extreme droughts. We, therefore, conclude that the physiological resilience to extreme droughts might be constrained by their growth prior to drought, and that more frequent and longer drought periods may overstrain their potential for acclimation., year = 2020</enrichment>
    <enrichment key="opus.import.dataHash">md5:c9f426628dc882ec7bcabf82925cc805</enrichment>
    <enrichment key="opus.import.date">2023-05-20T14:30:59+00:00</enrichment>
    <enrichment key="opus.import.file">/tmp/phpTnAFgg</enrichment>
    <enrichment key="opus.import.format">bibtex</enrichment>
    <enrichment key="opus.import.id">6468d9a358d783.35134227</enrichment>
    <licence>Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International</licence>
    <author>Arun K. Bose</author>
    <author>Arthur Gessler</author>
    <author>Andreas Bolte</author>
    <author>Alessandra Bottero</author>
    <author>Allan Buras</author>
    <author>Maxime Cailleret</author>
    <author>J. Julio Camarero</author>
    <author>Matthias Haeni</author>
    <author>Ana-Maria Hereş</author>
    <author>Andrea Hevia</author>
    <author>Mathieu Lévesque</author>
    <author>Juan C. Linares</author>
    <author>Jordi Martinez-Vilalta</author>
    <author>Luis Matías</author>
    <author>Annette Menzel</author>
    <author>Raúl Sánchez-Salguero</author>
    <author>Matthias Saurer</author>
    <author>Michel Vennetier</author>
    <author>Daniel Ziche</author>
    <author>Andreas Rigling</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>acclimation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>latitudinal gradient</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Pinus sylvestris</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>predisposition</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>tree rings</value>
    </subject>
    <collection role="open_access" number="">open_access</collection>
    <collection role="Hochschulbibliographie" number=""/>
    <collection role="Hochschulbibliographie" number="">Zweitveröffentlichung</collection>
    <collection role="Hochschulbibliographie" number="">Referiert</collection>
    <thesisPublisher>Hochschule für nachhaltige Entwicklung Eberswalde</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-hnee/files/549/Globa_Change_Biology_2020_Bose.pdf</file>
  </doc>
</export-example>
