142 results on '"Heinrichs, Steffi"'
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2. Regeneration of Nothofagus dombeyi (Mirb.) Ørst. in little to moderately disturbed southern beech forests in the Andes of Patagonia (Argentina)
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Zerbe, Stefan, Storz, Stefanie T., Leitinger, Georg, Joelson, Natalia Zoe, Bava, José, Heinrichs, Steffi, Leuschner, Christoph, Loguercio, Gabriel, Simon, Alois, Urretavizcaya, María F., and Walentowski, Helge
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- 2023
- Full Text
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3. Tree regeneration characteristics in limestone forests of the Cat Ba National Park, Vietnam
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Pham, Van Vien, Ammer, Christian, Annighöfer, Peter, and Heinrichs, Steffi
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- 2022
- Full Text
- View/download PDF
4. Combining multiple investigative approaches to unravel functional responses to global change in the understorey of temperate forests
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Landuyt, Dries, Perring, Michael P., Blondeel, Haben, De Lombaerde, Emiel, Depauw, Leen, Lorer, Eline, Maes, Sybryn L., Baeten, Lander, Bergès, Laurent, Bernhardt‐Römermann, Markus, Brūmelis, Guntis, Brunet, Jörg, Chudomelová, Markéta, Czerepko, Janusz, Decocq, Guillaume, den Ouden, Jan, De Frenne, Pieter, Dirnböck, Thomas, Durak, Tomasz, Fichtner, Andreas, Gawryś, Radosław, Härdtle, Werner, Hédl, Radim, Heinrichs, Steffi, Heinken, Thilo, Jaroszewicz, Bogdan, Kirby, Keith, Kopecký, Martin, Máliš, František, Macek, Martin, Mitchell, Fraser J.G., Naaf, Tobias, Petřík, Petr, Reczyńska, Kamila, Schmidt, Wolfgang, Standovár, Tibor, Swierkosz, Krzysztof, Smart, Simon M., Van Calster, Hans, Vild, Ondřej, Waller, Donald M., Wulf, Monika, Verheyen, Kris, Landuyt, Dries, Perring, Michael P., Blondeel, Haben, De Lombaerde, Emiel, Depauw, Leen, Lorer, Eline, Maes, Sybryn L., Baeten, Lander, Bergès, Laurent, Bernhardt‐Römermann, Markus, Brūmelis, Guntis, Brunet, Jörg, Chudomelová, Markéta, Czerepko, Janusz, Decocq, Guillaume, den Ouden, Jan, De Frenne, Pieter, Dirnböck, Thomas, Durak, Tomasz, Fichtner, Andreas, Gawryś, Radosław, Härdtle, Werner, Hédl, Radim, Heinrichs, Steffi, Heinken, Thilo, Jaroszewicz, Bogdan, Kirby, Keith, Kopecký, Martin, Máliš, František, Macek, Martin, Mitchell, Fraser J.G., Naaf, Tobias, Petřík, Petr, Reczyńska, Kamila, Schmidt, Wolfgang, Standovár, Tibor, Swierkosz, Krzysztof, Smart, Simon M., Van Calster, Hans, Vild, Ondřej, Waller, Donald M., Wulf, Monika, and Verheyen, Kris
- Abstract
Plant communities are being exposed to changing environmental conditions all around the globe, leading to alterations in plant diversity, community composition, and ecosystem functioning. For herbaceous understorey communities in temperate forests, responses to global change are postulated to be complex, due to the presence of a tree layer that modulates understorey responses to external pressures such as climate change and changes in atmospheric nitrogen deposition rates. Multiple investigative approaches have been put forward as tools to detect, quantify and predict understorey responses to these global-change drivers, including, among others, distributed resurvey studies and manipulative experiments. These investigative approaches are generally designed and reported upon in isolation, while integration across investigative approaches is rarely considered. In this study, we integrate three investigative approaches (two complementary resurvey approaches and one experimental approach) to investigate how climate warming and changes in nitrogen deposition affect the functional composition of the understorey and how functional responses in the understorey are modulated by canopy disturbance, that is, changes in overstorey canopy openness over time. Our resurvey data reveal that most changes in understorey functional characteristics represent responses to changes in canopy openness with shifts in macroclimate temperature and aerial nitrogen deposition playing secondary roles. Contrary to expectations, we found little evidence that these drivers interact. In addition, experimental findings deviated from the observational findings, suggesting that the forces driving understorey change at the regional scale differ from those driving change at the forest floor (i.e., the experimental treatments). Our study demonstrates that different approaches need to be integrated to acquire a full picture of how understorey communities respond to global change.
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- 2024
5. Combining multiple investigative approaches to unravel functional responses to global change in the understorey of temperate forests
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Landuyt, Dries, primary, Perring, Michael P., additional, Blondeel, Haben, additional, De Lombaerde, Emiel, additional, Depauw, Leen, additional, Lorer, Eline, additional, Maes, Sybryn L., additional, Baeten, Lander, additional, Bergès, Laurent, additional, Bernhardt‐Römermann, Markus, additional, Brūmelis, Guntis, additional, Brunet, Jörg, additional, Chudomelová, Markéta, additional, Czerepko, Janusz, additional, Decocq, Guillaume, additional, den Ouden, Jan, additional, De Frenne, Pieter, additional, Dirnböck, Thomas, additional, Durak, Tomasz, additional, Fichtner, Andreas, additional, Gawryś, Radosław, additional, Härdtle, Werner, additional, Hédl, Radim, additional, Heinrichs, Steffi, additional, Heinken, Thilo, additional, Jaroszewicz, Bogdan, additional, Kirby, Keith, additional, Kopecký, Martin, additional, Máliš, František, additional, Macek, Martin, additional, Mitchell, Fraser J. G., additional, Naaf, Tobias, additional, Petřík, Petr, additional, Reczyńska, Kamila, additional, Schmidt, Wolfgang, additional, Standovár, Tibor, additional, Swierkosz, Krzysztof, additional, Smart, Simon M., additional, Van Calster, Hans, additional, Vild, Ondřej, additional, Waller, Donald M., additional, Wulf, Monika, additional, and Verheyen, Kris, additional
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- 2023
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6. Climatic factors controlling stem growth of alien tree species at a mesic forest site: a multispecies approach
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Hoffmann, Nils, Heinrichs, Steffi, Schall, Peter, and Vor, Torsten
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- 2020
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7. The impact of even-aged and uneven-aged forest management on regional biodiversity of multiple taxa in European beech forests
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Schall, Peter, Gossner, Martin M., Heinrichs, Steffi, Fischer, Markus, Boch, Steffen, Prati, Daniel, Jung, Kirsten, Baumgartner, Vanessa, Blaser, Stefan, Böhm, Stefan, Buscot, François, Daniel, Rolf, Goldmann, Kezia, Kaiser, Kristin, Kahl, Tiemo, Lange, Markus, Müller, Jörg, Overmann, Jörg, Renner, Swen C., Wemheuer, Bernd, Schulze, Ernst-Detlef, Sikorski, Johannes, Tschapka, Marco, Türke, Manfred, Weisser, Wolfgang W., Wubet, Tesfaye, and Ammer, Christian
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- 2018
8. Biotic homogenization of herb layer composition between two contrasting beech forest communities on limestone over 50 years
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Heinrichs, Steffi and Schmidt, Wolfgang
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- 2017
9. Combining Biodiversity Resurveys across Regions to Advance Global Change Research
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VERHEYEN, KRIS, DE FRENNE, PIETER, BAETEN, LANDER, WALLER, DONALD M., HÉDL, RADIM, PERRING, MICHAEL P., BLONDEEL, HABEN, BRUNET, JÖRG, CHUDOMELOVÁ, MARKÉTA, DECOCQ, GUILLAUME, DE LOMBAERDE, EMIEL, DEPAUW, LEEN, DIRNBÖCK, THOMAS, DURAK, TOMASZ, ERIKSSON, OVE, GILLIAM, FRANK S., HEINKEN, THILO, HEINRICHS, STEFFI, HERMY, MARTIN, JAROSZEWICZ, BOGDAN, JENKINS, MICHAEL A., JOHNSON, SARAH E., KIRBY, KEITH J., KOPECKÝ, MARTIN, LANDUYT, DRIES, LENOIR, JONATHAN, LI, DAIJIANG, MACEK, MARTIN, MAES, SYBRYN L., MÁLIŠ, FRANTIŠEK, MITCHELL, FRASER J. G., NAAF, TOBIAS, PETERKEN, GEORGE, PETŘÍK, PETR, RECZYŃSKA, KAMILA, ROGERS, DAVID A., SCHEI, FRIDE HØISTAD, SCHMIDT, WOLFGANG, STANDOVÁR, TIBOR, ŚWIERKOSZ, KRZYSZTOF, UJHÁZY, KAROL, VAN CALSTER, HANS, VELLEND, MARK, VILD, ONDŘEJ, WOODS, KERRY, WULF, MONIKA, and BERNHARDT-RÖMERMANN, MARKUS
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- 2017
10. Resurvey studies of terricolous bryophytes and lichens indicate a widespread nutrient enrichment in German forests
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Diekmann, Martin, primary, Heinken, Thilo, additional, Becker, Thomas, additional, Dörfler, Inken, additional, Heinrichs, Steffi, additional, Leuschner, Christoph, additional, Peppler‐Lisbach, Cord, additional, Osthaus, Magdalena, additional, Schmidt, Wolfgang, additional, Strubelt, Ilka, additional, and Wagner, Eva‐Rosa, additional
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- 2023
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11. Correction to: Climatic factors controlling stem growth of alien tree species at a mesic forest site: a multispecies approach
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Hoffmann, Nils, Heinrichs, Steffi, Schall, Peter, and Vor, Torsten
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- 2021
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12. Dynamics of Hedera helix L. in Central European beech forests on limestone: results from long-term monitoring and experimental studies
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Heinrichs, Steffi and Schmidt, Wolfgang
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- 2015
13. Risks, benefits, and knowledge gaps of non-native tree species in Europe
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Dimitrova, Anastazija, primary, Csilléry, Katalin, additional, Klisz, Marcin, additional, Lévesque, Mathieu, additional, Heinrichs, Steffi, additional, Cailleret, Maxime, additional, Andivia, Enrique, additional, Madsen, Palle, additional, Böhenius, Henrik, additional, Cvjetkovic, Branislav, additional, De Cuyper, Bart, additional, de Dato, Giovanbattista, additional, Ferus, Peter, additional, Heinze, Berthold, additional, Ivetić, Vladan, additional, Köbölkuti, Zoltan, additional, Lazarević, Jelena, additional, Lazdina, Dagnija, additional, Maaten, Tiit, additional, Makovskis, Kristaps, additional, Milovanović, Jelena, additional, Monteiro, Antonio T., additional, Nonić, Marina, additional, Place, Simon, additional, Puchalka, Radoslaw, additional, and Montagnoli, Antonio, additional
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- 2022
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14. Understory Vegetation Dynamics in Non-Native Douglas Fir Forests after Management Abandonment—A Case Study in Two Strict Forest Reserves in Southwest Germany
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Heinrichs, Steffi, primary, Dölle, Michaela, additional, Vor, Torsten, additional, Balcar, Patricia, additional, and Schmidt, Wolfgang, additional
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- 2022
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15. Plant species diversity and composition in limestone forests of the Vietnamese Cat Ba National Park
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Pham, Van Vien, primary, Ammer, Christian, additional, Annighöfer, Peter, additional, and Heinrichs, Steffi, additional
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- 2022
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16. Struggling to maintain native plant diversity in a peri-urban reserve surrounded by a highly anthropogenic matrix
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Heinrichs, Steffi and Pauchard, Aníbal
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- 2015
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17. Risks, benefits, and knowledge gaps of non-native tree species in Europe
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Montagnoli, Antonio, Dimitrova, Anastazija, Puchalka, Radoslaw, Csillery, Katalin, Klisz, Marcin, Levesque, Mathieu, Heinrichs, Steffi, Cailleret, Maxime, Andivia, Enrique, Böhlenius, Henrik, De Cuyper, Bart, de Dato, Giovanbattista, Ferus, Peter, Ivetic, Vladan, Lazarevic, Jelena, Lazdina, Dagnija, Maaten, Tiit, Makovskis, Kristaps, Monteiro, Antonio T., and Nonic, Marina
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Ecology - Abstract
Changing ecosystem conditions and diverse socio-economical events have contributed to an ingrained presence of non-native tree species (NNTs) in the natural and cultural European landscapes. Recent research endeavors have focused on different aspects of NNTs such as legislation, benefits, and risks for forestry, emphasizing that large knowledge gaps remain. As an attempt to fulfill part of these gaps, within the PEN-CAFoRR COST Action (CA19128) network, we established an open-access questionnaire that allows both academic experts and practitioners to provide information regarding NNTs from 20 European countries. Then, we integrated the data originating from the questionnaire, related to the country-based assessment of both peer-reviewed and grey literature, with information from available datasets (EUFORGEN and EU-Forest), which gave the main structure to the study and led to a mixed approach review. Finally, our study provided important insights into the current state of knowledge regarding NNTs. In particular, we highlighted NNTs that have shown to be less commonly addressed in research, raising caution about those characterized by an invasive behavior and used for specific purposes (e.g., wood production, soil recultivation, afforestation, and reforestation). NNTs were especially explored in the context of resilient and adaptive forest management. Moreover, we emphasized the assisted and natural northward migration of NNTs as another underscored pressing issue, which needs to be addressed by joint efforts, especially in the context of the hybridization potential. This study represents an additional effort toward the knowledge enhancement of the NNTs situation in Europe, aiming for a continuously active common source deriving from interprofessional collaboration.
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- 2022
18. Tree regeneration characteristics in limestone forests of the Cat Ba National Park, Vietnam
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Pham, Van Vien, Ammer, Christian, Annighöfer, Peter, Heinrichs, Steffi, and Professur für Wald- und Agroforstsysteme
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Ecology ,Evolution ,Parks, Recreational ,Endangered Species ,National park ,General Medicine ,Forests ,Calcium Carbonate ,Trees ,ddc ,Overstory-regeneration ratio ,Soil ,Vietnam ,QH359-425 ,Environmental factors ,Regeneration ,Animals ,ddc:630 ,QH540-549.5 ,Research Article ,Species richness - Abstract
Background The ability of overstory tree species to regenerate successfully is important for the preservation of tree species diversity and its associated flora and fauna. This study investigated forest regeneration dynamics in the Cat Ba National Park, a biodiversity hotspot in Vietnam. Data was collected from 90 sample plots (500 m2) and 450 sub-sample plots (25 m2) in regional limestone forests. We evaluated the regeneration status of tree species by developing five ratios relating overstory and regeneration richness and diversity. By examining the effect of environmental factors on these ratios, we aimed to identify the main drivers for maintaining tree species diversity or for potential diversity gaps between the regeneration and the overstory layer. Our results can help to increase the understanding of regeneration patterns in tropical forests of Southeast Asia and to develop successful conservation strategies. Results We found 97 tree species in the regeneration layer compared to 136 species in the overstory layer. The average regeneration density was 3764 ± 1601 per ha. Around 70% of the overstory tree species generated offspring. According to the International Union for Conservation of Nature’s Red List, only 36% of threatened tree species were found in the regeneration layer. A principal component analysis provided evidence that the regeneration of tree species was slightly negatively correlated to terrain factors (percentage of rock surface, slope) and soil properties (cation exchange capacity, pH, humus content, soil moisture, soil depth). Contrary to our expectations, traces of human impact and the prevailing light conditions (total site factor, gap fraction, openness, indirect site factor, direct site factor) had no influence on regeneration density and composition, probably due to the small gradient in light availability. Conclusion We conclude that the tree species richness in Cat Ba National Park appears to be declining at present. We suggest similar investigations in other biodiversity hotspots to learn whether the observed trend is a global phenomenon. In any case, a conservation strategy for the threatened tree species in the Cat Ba National Park needs to be developed if tree species diversity is to be maintained.
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- 2021
19. Konstanz und Dynamik in einem artenreichen Kalkbuchenwald - Fortführung einer Zeitreihe von 1981 bis 2021.
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Heinrichs, Steffi, Dölle, Michaela, Walentowski, Helge, and Schmidt, Wolfgang
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EUROPEAN beech , *FOREST surveys , *ENGLISH ivy , *ROE deer , *FOREST management , *DEAD trees , *DROUGHTS , *WINTER storms - Abstract
In 2021, a large transect with 281 10 × 10 m grid cells was re-surveyed in a limestone European beech forest (Hordelymo-Fagetum lathyretosum) on the plateau of the Göttingen Forest after surveys in 1981, 1991, 2001, and 2011. The stand, which has not been managed by forestry since the beginning of the permanent plot study, initially showed an increasing cover of the tree layer and, as a consequence of game-proof fencing until 2005, also an increasing cover of the shrub layer. Since 2011, the tree layer cover has decreased due to small openings after drought years and winter storms. Also, the shrub layer cover declined significantly since 2011, mainly due to ash dieback and the growing impact of deer browsing. In both vegetation layers, Fagus sylvatica was able to expand its dominant role. In the herbaceous layer, the sharp decline and loss of numerous species is striking, among them typical forest species that have been classified as characteristic for species-rich European beech forests on limestone (e. g., Lathyrus vernus, Mercurialis perennis). The large number of losers (27 species) is matched by only a small number of winners (5 species) between 1981 and 2021. Especially Allium ursinum and Hedera helix, but also the two Orchidaceae Epipactis helleborine and Neottia nidus-avis have increased significantly since 1981. The increase of the highly competitive Allium ursinum, probably due to an earlier start and a longer lasting vegetation period, is accompanied by an increasing share of beech in the tree layer. At the same time, the species diversity decreased, and the herb layer composition became more homogeneous across the transect. Hedera helix seems to have benefited mainly from climate change (lack of severe winter frosts, CO2 increase), but also from the temporary exclusion of roe deer browsing. Based on the analysis of mean indicator values shade-tolerant, oceanic-distributed species, as well as nitrogen and moisture indicators have increased, while more light demanding species continuously decreased between survey years. Compared to intensively managed stands with massive thinning and/or soil disturbances, as in coppice-with-standards or large shelterwood systems, these species suffered from a closed canopy after management abandonment. The small-scale disturbances caused by drought and windthrow in the period 2012-2021 are obviously not sufficient to provide favourable conditions for these species, including a large number of species that have been classified as typical for European beech forests on limestone and that have been present in the beginning of the longterm study. Thus, the presented time series indicates that eutrophic beech forests without forest management are species poorer than previously reported. [ABSTRACT FROM AUTHOR]
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- 2023
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20. Among stand heterogeneity is key for biodiversity in managed beech forests but does not question the value of unmanaged forests: Response to Bruun and Heilmann‐Clausen (2021)
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Schall, Peter, primary, Heinrichs, Steffi, additional, Ammer, Christian, additional, Ayasse, Manfred, additional, Boch, Steffen, additional, Buscot, François, additional, Fischer, Markus, additional, Goldmann, Kezia, additional, Overmann, Jörg, additional, Schulze, Ernst‐Detlef, additional, Sikorski, Johannes, additional, Weisser, Wolfgang W., additional, Wubet, Tesfaye, additional, and Gossner, Martin M., additional
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- 2021
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21. Plant species diversity and composition in limestone forests of the Vietnamese Cat Ba National Park.
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Pham, Van Vien, Ammer, Christian, Annighöfer, Peter, and Heinrichs, Steffi
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PLANT species diversity ,FOREST biodiversity ,FOREST regeneration ,PLANT diversity ,NATIONAL parks & reserves ,LIMESTONE - Abstract
Plant species diversity and composition play crucial roles in many ecosystem services and are largely influenced by environmental conditions, as well as natural and/or anthropogenic disturbances. However, our knowledge of the drivers of plant species diversity and composition in the limestone forests of Vietnam, a hotspot of biodiversity, is limited. To fill this knowledge gap, we surveyed plant species in the Cat Ba National Park (CBNP), located on a limestone archipelago. We hypothesised that: (1) topography, accessibility and spatial isolation drive the diversity and composition of plant communities in the CBNP and that (2) isolated areas contribute to high floristic regional diversity by supporting unique species assemblages. We expected high tree species diversity within the tropical limestone forests of the CBNP, but also that: (3) the abundance of non-tree species negatively affects tree regeneration diversity and abundance. Data were obtained from 90 random sample plots (500 m²) and 450 sub-sample plots (25 m²) in three areas of the CBNP. We differentiated four different plant species communities and found a total of 302 species belonging to 112 families. Tree species contributed 50% to total species richness. The distribution of different plant communities in the CBNP was driven mainly by topography; that is, the percentage of rock surface and slope and concomitant differences in soil depth. Contrary to our expectations, isolated areas did not contribute greatly to the CBNP's plant species diversity. It seems that isolated areas and, as in our case, rough topography, may act as natural barriers to seed dispersal, creating an environmental filter for tree species. Across the CBNP, there was no effect of non-tree species on tree species regeneration, but regeneration patterns differed between communities. In species-rich communities growing under favourable site conditions (e.g. low rock surface and slope), greater coverage by non-tree species had an increasingly negative effect on tree species richness and abundance in the regeneration layer. The opposite was observed in communities growing under harsh site conditions. We conclude that plant species diversity in the CBNP is high, particularly in easily accessible lowland areas where tree species contribute greatly to biodiversity. However, here, non-tree species can even restrict tree regeneration. [ABSTRACT FROM AUTHOR]
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- 2022
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22. The Influence of Tilia tomentosa Moench on Plant Species Diversity and Composition in Mesophilic Forests of Western Romania–A Potential Tree Species for Warming Forests in Central Europe?
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Heinrichs, Steffi, primary, Öder, Veronika, additional, Indreica, Adrian, additional, Bergmeier, Erwin, additional, Leuschner, Christoph, additional, and Walentowski, Helge, additional
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- 2021
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23. Evaluating structural and compositional canopy characteristics to predict the light‐demand signature of the forest understorey in mixed, semi‐natural temperate forests
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Depauw, Leen, Perring, Michael P., Landuyt, Dries, Maes, Sybryn L., Blondeel, Haben, De Lombaerde, Emiel, Brūmelis, Guntis, Brunet, Jörg, Closset‐Kopp, Déborah, Decocq, Guillaume, Den Ouden, Jan, Härdtle, Werner, Hédl, Radim, Heinken, Thilo, Heinrichs, Steffi, Jaroszewicz, Bogdan, Kopecký, Martin, Liepiņa, Ilze, Macek, Martin, Máliš, František, Schmidt, Wolfgang, Smart, Simon M., Ujházy, Karol, Wulf, Monika, Verheyen, Kris, Depauw, Leen, Perring, Michael P., Landuyt, Dries, Maes, Sybryn L., Blondeel, Haben, De Lombaerde, Emiel, Brūmelis, Guntis, Brunet, Jörg, Closset‐Kopp, Déborah, Decocq, Guillaume, Den Ouden, Jan, Härdtle, Werner, Hédl, Radim, Heinken, Thilo, Heinrichs, Steffi, Jaroszewicz, Bogdan, Kopecký, Martin, Liepiņa, Ilze, Macek, Martin, Máliš, František, Schmidt, Wolfgang, Smart, Simon M., Ujházy, Karol, Wulf, Monika, and Verheyen, Kris
- Abstract
Questions: Light availability at the forest floor affects many forest ecosystem processes, and is often quantified indirectly through easy‐to‐measure stand characteristics. We investigated how three such characteristics, basal area, canopy cover and canopy closure, were related to each other in structurally complex mixed forests. We also asked how well they can predict the light‐demand signature of the forest understorey (estimated as the mean Ellenberg indicator value for light [“EIVLIGHT”] and the proportion of “forest specialists” [“%FS”] within the plots). Furthermore, we asked whether accounting for the shade‐casting ability of individual canopy species could improve predictions of EIVLIGHT and %FS. Location: A total of 192 study plots from nineteen temperate forest regions across Europe. Methods: In each plot, we measured stand basal area (all stems >7.5 cm diameter), canopy closure (with a densiometer) and visually estimated the percentage cover of all plant species in the herb (<1 m), shrub (1–7 m) and tree layer (>7 m). We used linear mixed‐effect models to assess the relationships between basal area, canopy cover and canopy closure. We performed model comparisons, based on R2 and the Akaike Information Criterion (AIC), to assess which stand characteristics can predict EIVLIGHT and %FS best, and to assess whether canopy shade‐casting ability can significantly improve model fit. Results: Canopy closure and cover were weakly related to each other, but showed no relation with basal area. For both EIVLIGHT and %FS, canopy cover was the best predictor. Including the share of high‐shade‐casting species in both the basal‐area and cover models improved the model fit for EIVLIGHT, but not for %FS. Conclusions: The typically expected relationships between basal area, canopy cover and canopy closure were weak or even absent in structurally complex mixed forests. In these forests, easy‐to‐measure structural canopy characteristics were poor predictors of the understorey
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- 2021
24. The estimation of aboveground biomass and nutrient pools of understorey plants in closed Norway spruce forests and on clearcuts
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Heinrichs, Steffi, Bernhardt-Römermann, Markus, and Schmidt, Wolfgang
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- 2010
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25. Tree Regeneration Characteristics in Limestone Forests of the Cat Ba National Park, Vietnam
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Pham, Van Vien, primary, Ammer, Christian, additional, Annighöfer, Peter, additional, and Heinrichs, Steffi, additional
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- 2021
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26. Light availability and land‐use history drive biodiversity and functional changes in forest herb layer communities
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Depauw, Leen, Perring, Michael P., Landuyt, Dries, Maes, Sybryn L., Blondeel, Haben, De Lombaerde, Emiel, Brūmelis, Guntis, Brunet, Jörg, Closset‐Kopp, Déborah, Czerepko, Janusz, Decocq, Guillaume, den Ouden, Jan, Gawryś, Radosław, Härdtle, Werner, Hédl, Radim, Heinken, Thilo, Heinrichs, Steffi, Jaroszewicz, Bogdan, Kopecký, Martin, Liepiņa, Ilze, Macek, Martin, Máliš, František, Schmidt, Wolfgang, Smart, Simon M., Ujházy, Karol, Wulf, Monika, Verheyen, Kris, Depauw, Leen, Perring, Michael P., Landuyt, Dries, Maes, Sybryn L., Blondeel, Haben, De Lombaerde, Emiel, Brūmelis, Guntis, Brunet, Jörg, Closset‐Kopp, Déborah, Czerepko, Janusz, Decocq, Guillaume, den Ouden, Jan, Gawryś, Radosław, Härdtle, Werner, Hédl, Radim, Heinken, Thilo, Heinrichs, Steffi, Jaroszewicz, Bogdan, Kopecký, Martin, Liepiņa, Ilze, Macek, Martin, Máliš, František, Schmidt, Wolfgang, Smart, Simon M., Ujházy, Karol, Wulf, Monika, and Verheyen, Kris
- Abstract
1. A central challenge of today's ecological research is predicting how ecosystems will develop under future global change. Accurate predictions are complicated by (a) simultaneous effects of different drivers, such as climate change, nitrogen deposition and management changes; and (b) legacy effects from previous land use. 2. We tested whether herb layer biodiversity (i.e. richness, Shannon diversity and evenness) and functional (i.e. herb cover, specific leaf area [SLA] and plant height) responses to environmental change drivers depended on land‐use history. We used resurvey data from 192 plots across nineteen European temperate forest regions, with large spatial variability in environmental change factors. We tested for interactions between land‐use history, distinguishing ancient and recent (i.e. post‐agricultural) forests and four drivers: temperature, nitrogen deposition, and aridity at the regional scale and light dynamics at the plot‐scale. 3. Land‐use history significantly modulated global change effects on the functional signature of the herb layer (i.e. cover, SLA and plant height). Light availability was the main environmental driver of change interacting with land‐use history. We found greater herb cover and plant height decreases and SLA increases with decreasing light availability in ancient than in recent forests. Furthermore, we found greater decreases in herb cover with increased nitrogen deposition in ancient forests, whereas warming had the strongest decreasing effect on the herb cover in recent forests. Interactive effects between land‐use history and global change on biodiversity were not found, but species evenness increased more in ancient than in recent forests. 4. Synthesis. Our results demonstrate that land‐use history should not be overlooked when predicting forest herb layer responses to global change. Moreover, we found that herb layer composition in semi‐natural deciduous forests is mainly controlled by local canopy characteristics, re
- Published
- 2020
27. Can multi‐taxa diversity in European beech forest landscapes be increased by combining different management systems?
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Schall, Peter, Heinrichs, Steffi, Ammer, Christian, Ayasse, Manfred, Boch, Steffen, Buscot, François, Fischer, Markus, Goldmann, Kezia, Overmann, Jörg, Schulze, Ernst‐Detlef, Sikorski, Johannes, Weisser, Wolfgang W., Wubet, Tesfaye, Gossner, Martin M., and Mori, Akira
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0106 biological sciences ,Resampling ,Forests & fields ,Gamma diversity ,Forest management ,Biodiversity ,Komplementarität ,580 Plants (Botany) ,010603 evolutionary biology ,01 natural sciences ,Temperate climate ,unmanaged forests ,Taxonomic rank ,gamma‐diversity ,Beech ,complementarity ,Ecology ,biology ,010604 marine biology & hydrobiology ,landscape composition ,15. Life on land ,biology.organism_classification ,forest specialists ,ddc ,even‐aged forests ,Taxon ,Geography ,uneven‐aged forests ,Species richness - Abstract
1. Forest management greatly influences biodiversity across spatial scales. At the landscape scale, combining management systems that create different stand properties might promote biodiversity due to complementary species assemblages. In European beech forests, nature conservation and policy advocate a mixture of unmanaged (UNM) forests and uneven-aged (UEA) forests managed at fine spatial grain at the expense of traditionally managed even-aged shelterwood forests (EA). Evidence that such a landscape composition enhances forest biodiversity is still missing. 2. We studied the biodiversity (species richness 0D, Shannon diversity 1D, Simpson diversity 2D) of 14 taxonomic groups from bacteria to vertebrates in ‘virtual’ beech forest landscapes composed of varying shares of EA, UEA and UNM and investigated how γ-diversity responds to landscape composition. Groups were sampled in the largest contiguous beech forest in Germany, where EA and UEA management date back nearly two centuries, while management was abandoned 20–70 years ago (UNM). We used a novel resampling approach that created all compositional combinations of management systems. 3. Pure EA landscapes preserved a maximum of 97.5% γ-multidiversity (0D, 1D) across all taxa. Pure and mixed UEA/UNM landscapes reduced γ-multidiversity by up to 12.8% (1D). This effect was consistent for forest specialists (1D: −15.3%). We found only weak complementarity among management systems. 4. Landscape composition significantly affected γ-diversity of 6–9 individual taxa, depending on the weighting of species frequencies with strongest responses for spiders, beetles, vascular plants and birds. Most showed maximum diversity in pure EA landscapes. Birds benefited from UNM in EA-dominated landscapes. Deadwood fungi showed highest diversity in UNM. 5. Synthesis and applications. Our study shows that combining fine-grained forest management and management abandonment at the landscape scale will reduce, rather than enhance, regional forest biodiversity. We found an even-aged shelterwood management system alone operating at intermediate spatial scales and providing stands with high environmental heterogeneity was able to support regional biodiversity. However, some taxa require certain shares of uneven-aged and unmanaged forests, emphasizing their general importance. We encourage using the here presented resampling approach to verify our results in forest landscapes of different composition and configuration across the temperate zone., publishedVersion
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- 2019
28. Comment on “Forest microclimate dynamics drive plant responses to warming”
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Schall, Peter, primary and Heinrichs, Steffi, additional
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- 2020
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29. Annahmen und Ergebnisse zur Biodiversität im Wirtschaftswald - neues aus der Biodiversitätsforschung
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Heinrichs, Steffi, primary, Schall, Peter, additional, Ammer, Christian, additional, Fischer, Markus, additional, and Gossner, Martin, additional
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- 2020
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30. Evaluating structural and compositional canopy characteristics to predict the light‐demand signature of the forest understorey in mixed, semi‐natural temperate forests
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Depauw, Leen, primary, Perring, Michael P., additional, Landuyt, Dries, additional, Maes, Sybryn L., additional, Blondeel, Haben, additional, De Lombaerde, Emiel, additional, Brūmelis, Guntis, additional, Brunet, Jörg, additional, Closset‐Kopp, Déborah, additional, Decocq, Guillaume, additional, Den Ouden, Jan, additional, Härdtle, Werner, additional, Hédl, Radim, additional, Heinken, Thilo, additional, Heinrichs, Steffi, additional, Jaroszewicz, Bogdan, additional, Kopecký, Martin, additional, Liepiņa, Ilze, additional, Macek, Martin, additional, Máliš, František, additional, Schmidt, Wolfgang, additional, Smart, Simon M., additional, Ujházy, Karol, additional, Wulf, Monika, additional, and Verheyen, Kris, additional
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- 2020
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31. Can multi‐taxa diversity in European beech forest landscapes be increased by combining different management systems?
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Schall, Peter, primary, Heinrichs, Steffi, additional, Ammer, Christian, additional, Ayasse, Manfred, additional, Boch, Steffen, additional, Buscot, François, additional, Fischer, Markus, additional, Goldmann, Kezia, additional, Overmann, Jörg, additional, Schulze, Ernst‐Detlef, additional, Sikorski, Johannes, additional, Weisser, Wolfgang W., additional, Wubet, Tesfaye, additional, and Gossner, Martin M., additional
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- 2020
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32. Light availability and land‐use history drive biodiversity and functional changes in forest herb layer communities
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Depauw, Leen, primary, Perring, Michael P., additional, Landuyt, Dries, additional, Maes, Sybryn L., additional, Blondeel, Haben, additional, De Lombaerde, Emiel, additional, Brūmelis, Guntis, additional, Brunet, Jörg, additional, Closset‐Kopp, Déborah, additional, Czerepko, Janusz, additional, Decocq, Guillaume, additional, den Ouden, Jan, additional, Gawryś, Radosław, additional, Härdtle, Werner, additional, Hédl, Radim, additional, Heinken, Thilo, additional, Heinrichs, Steffi, additional, Jaroszewicz, Bogdan, additional, Kopecký, Martin, additional, Liepiņa, Ilze, additional, Macek, Martin, additional, Máliš, František, additional, Schmidt, Wolfgang, additional, Smart, Simon M., additional, Ujházy, Karol, additional, Wulf, Monika, additional, and Verheyen, Kris, additional
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- 2020
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33. Drivers of above‐ground understorey biomass and nutrient stocks in temperate deciduous forests
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Landuyt, Dries, primary, Maes, Sybryn L., additional, Depauw, Leen, additional, Ampoorter, Evy, additional, Blondeel, Haben, additional, Perring, Michael P., additional, Brūmelis, Guntis, additional, Brunet, Jörg, additional, Decocq, Guillaume, additional, Ouden, Jan, additional, Härdtle, Werner, additional, Hédl, Radim, additional, Heinken, Thilo, additional, Heinrichs, Steffi, additional, Jaroszewicz, Bogdan, additional, Kirby, Keith J., additional, Kopecký, Martin, additional, Máliš, František, additional, Wulf, Monika, additional, and Verheyen, Kris, additional
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- 2019
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34. Tree regeneration characteristics in limestone forests of the Cat Ba National Park, Vietnam.
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Van Vien Pham, Ammer, Christian, Annighöfer, Peter, and Heinrichs, Steffi
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- 2022
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35. Non-native vascular plant species in strict forest nature reserves in Rhineland-Palatinate
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Schmidt, Wolfgang, Dölle, Michaela, Heinrichs, Steffi, and Balear, Patricia
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Flora -- Vegetation -- Buchenwald -- Auenwald -- Bruchwald -- Pseudotsuga menziesii -- Naturnähe -- Schalenwild-Verbiss -- Wirtschaftswälder -- flora -- vegetation -- beech forest -- riparian forest -- bog woodland -- Pseudotsuga menziesii -- naturalness -- deer browsing -- managed forests ,Buchenwald ,Vegetation ,riparian forest ,Schalenwild-Verbiss ,15. Life on land ,Pseudotsuga menziesii ,Article ,managed forests ,ddc:58 ,flora ,ddc:580 ,bog woodland ,Wirtschaftswälder ,deer browsing ,Veröffentlichung der TU Braunschweig ,Bruchwald ,naturalness ,Auenwald ,Naturnähe ,beech forest ,ddc:5 - Abstract
Floristische und vegetationskundliche Daten aus 21 Naturwaldreservaten (NWR) in Rheinland-Pfalz wurden hinsichtlich ihres Anteils an gebietsfremden Gefäßpflanzenarten (Neophyten i. w. S.) ausgewertet und überregional verglichen, um generelle Trends in der Naturnähe und der natürlichen Waldentwicklung - unabhängig von lokal wirkenden Faktoren – aufzuzeigen. Neben überwiegend zonalen, naturnahen Buchenwäldern bodensaurer Standorte umfasst der Datensatz auch drei Auenwald-Standorte und zwei Moorbirken-Bruchwälder. Als Besonderheit im Ver-gleich zu anderen Bundesländern hat Rheinland-Pfalz zwei NWR mit hohen Douglasien-Anteilen ausgewiesen, um deren Entwicklung ohne forstliche Nutzung zu dokumentieren. Von diesen beiden NWR und zwei NWR mit besonderer Dynamik nach Windwurf sowie einem weitgehend ungestörtem NWR im Biosphärenreservat Pfälzer Wald liegen auch Wiederholungsinventuren vor, die erste Hinweise auf die langfristige Entwicklung des Neophyten-Anteils in NWR liefern. Durch einen Vergleich gezäunter und ungezäunter Flächen in NWR konnte der Schalenwildein-fluss, durch den Vergleich mit angrenzenden, weiterhin bewirtschafteten Beständen der Einfluss der forstlichen Nutzung auf den Anteil gebietsfremder Arten an der Vegetation analysiert wer-den. Gebietsfremde Arten spielen in den naturnahen, nicht mehr bewirtschafteten NWR in Rhein-land-Pfalz insgesamt eine untergeordnete Rolle. Vor allem krautige Neophyten sind ausgespro-chen gering vertreten, insbesondere in den naturnahen Buchenwald-NWR. Auch von Impatiens glandulifera, die in allen Auen-NWR am Rhein vorkommt, geht bisher weder ein Verdrängen ein-heimischer Arten noch ein Verlust an Diversität und Naturnähe aus. Den größten Anteil unter den gebietsfremden Arten bilden die nicht-autochthonen Gehölze, die in der Vergangenheit 142 forstlich angebaut wurden und von denen sich vor allem Picea abies, Larix decidua und Pseudotsuga menziesii in den NWR vielfach spontan verjüngen. Wiederholungsinventuren zeigen unterschied-liche Entwicklungen im Anteil gebietsfremder Arten, wobei vorangegangene Störungen (z. B. Windwurf) einen wesentlichen Einfluss ausüben. Im Vergleich der Aufnahmen von zwei Dougla-sien-reichen NWR kam es innerhalb eines Jahrzehnts zu einem starken Rückgang der Douglasie. Sie ist dort vor allem in der Konkurrenz zur Buche unterlegen, so dass sich ohne waldbauliche Unterstützung hier der Naturnähegrad wieder erhöht hat. Ohne Schalenwildeinfluss (hauptsäch-lich Reh- und Rotwild) sind gebietsfremde Arten tendenziell erfolgreicher. Insbesondere Picea abies und Pseudotsuga menziesii waren im Zaun in Strauchschichthöhe stärker vertreten als außer-halb. Im Vergleich mit bewirtschafteten Wäldern ist der Anteil gebietsfremder Arten in unbewirt-schafteten NWR absolut gesehen niedriger. Durch den geringen Artenreichtum an Gefäß-pflanzen und einem geringeren Deckungsgrad der Bodenvegetation im NWR gleichen sich die Unterschiede zwischen (naturnah) bewirtschafteten und nicht bewirtschafteten Wäldern jedoch weitgehend aus., Floristic data and data from vegetation surveys were compared across 21 strict forest nature reserves (SFNR) in Rhineland-Palatinate (south-west Germany) concerning the proportion of non-native plant species (alien plant species or neophytes) in order to detect general trends in the naturalness and dynamics of unmanaged forests in Central Europe. Beside the predominant zonal and close-to-nature oligotrophic beech forests the data set included three eutrophic floodplain forests and two oligotrophic bog woodlands. Apart from other German federal states Rhineland-Palatinate established two SFNR with a high proportion of the alien species Douglas fir in order to study the further development of these stands without forest management. Resurveys of these two SFNR and two further SFNR with a high dynamic after windthrow as well as an undisturbed SFNR in the biosphere reserve Palatinate Forest give the opportunity to analyze long-term trends of alien species. A comparison of fenced and unfenced plots allowed an assessment of browsing effects, a comparison of SFNR with close-by managed forests an assessment of forest manage-ment impacts on the relevance of neophytes in forest vegetation. In a regional context the proportion of non-indigenous plant species in unmanaged SFNR in Rhineland-Palatinate is low. Especially in close-to-nature beech forest SFNR alien herb layer species are rare. Even Impatiens glandulifera – well established in all of the investigated floodplain SFNR of the Rhine valley – seems not to suppress native plant species and shows no negative impact on diversity and the degree of naturalness of the riparian forests. Phanerophytes (woody species) have the highest proportion among aliens in the dataset, mainly introduced by planting in the past. Among them especially Picea abies, Larix decidua, and Pseudotsuga menziesii showed the ability to regenerate naturally in the SFNR. Resurveys of disturbed and undisturbed SFNR indi-cated a divergent development in the proportion of alien species. SFNR stands with Douglas fir Wolfgang Schmidt, Michaela Dölle, Steffi Heinrichs & Patricia Balcar: Gebietsfremde Gefäßpflanzen in Naturwaldreservaten von Rheinland-Pfalz 143 showed a strong decrease of Pseudotsuga menziesii mainly outcompeted by beech within one dec-ade. Therefore, without forest management naturalness of the stands has increased. Without deer browsing (mainly roe and red deer) alien plant species seemed to be more successful. Especially Picea abies and Pseudotsuga menziesii are limited by browsing as fencing increased species frequency and abundance of these woody species within the shrub layer. In general, forest management increased the total number of neophytes. But due to the decreasing species richness and the lower coverage of understorey vegetation in the unmanaged SFNR the differences in the propor-tion of alien species in close-to-nature managed forests and unmanaged forests are negligible, Erforschung und Erhaltung der Phytodiversität: Festschrift zum 70. Geburtstag für Prof. Dr. Dietmar Brandes, p. 141
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36. Seasonal drivers of understorey temperature buffering in temperate deciduous forests across Europe
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Zellweger, Florian, Coomes, David, Lenoir, Jonathan, Depauw, Leen, Maes, Sybryn L., Wulf, Monika, Kirby, Keith J., Brunet, Jörg, Kopecký, Martin, Máliš, František, Schmidt, Wolfgang, Heinrichs, Steffi, den Ouden, Jan, Jaroszewicz, Bogdan, Buyse, Gauthier, Spicher, Fabien, Verheyen, Kris, De Frenne, Pieter, Zellweger, Florian, Coomes, David, Lenoir, Jonathan, Depauw, Leen, Maes, Sybryn L., Wulf, Monika, Kirby, Keith J., Brunet, Jörg, Kopecký, Martin, Máliš, František, Schmidt, Wolfgang, Heinrichs, Steffi, den Ouden, Jan, Jaroszewicz, Bogdan, Buyse, Gauthier, Spicher, Fabien, Verheyen, Kris, and De Frenne, Pieter
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Aim: Forest understorey microclimates are often buffered against extreme heat or cold, with important implications for the organisms living in these environments. We quantified seasonal effects of understorey microclimate predictors describing canopy structure, canopy composition and topography (i.e., local factors) and the forest patch size and distance to the coast (i.e., landscape factors). Location: Temperate forests in Europe. Time period: 2017–2018. Major taxa studied: Woody plants. Methods: We combined data from a microclimate sensor network with weather-station records to calculate the difference, or offset, between temperatures measured inside and outside forests. We used regression analysis to study the effects of local and landscape factors on the seasonal offset of minimum, mean and maximum temperatures. Results: The maximum temperature during the summer was on average cooler by 2.1 °C inside than outside forests, and the minimum temperatures during the winter and spring were 0.4 and 0.9 °C warmer. The local canopy cover was a strong nonlinear driver of the maximum temperature offset during summer, and we found increased cooling beneath tree species that cast the deepest shade. Seasonal offsets of minimum temperature were mainly regulated by landscape and topographic features, such as the distance to the coast and topographic position. Main conclusions: Forest organisms experience less severe temperature extremes than suggested by currently available macroclimate data; therefore, climate–species relationships and the responses of species to anthropogenic global warming cannot be modelled accurately in forests using macroclimate data alone. Changes in canopy cover and composition will strongly modulate the warming of maximum temperatures in forest understories, with important implications for understanding the responses of forest biodiversity and functioning to the combined threats of land-use change and climate change. Our predictive models are generally
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- 2019
37. Data from: Seasonal drivers of understorey temperature buffering in temperate deciduous forests across Europe
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Zellweger, Florian, Coomes, David A., Lenoir, Jonathan, Depauw, Leen, Maes, Sybryn L., Kirby, Keith J., Brunet, Jörg, Kopecký, Martin, Máliš, František, Schmidt, Wolfgang, Heinrichs, Steffi, den Ouden, Jan, Jaroszewicz, Bogdan, Buyse, Gauthier, Spicher, Fabien, Wulf, Monika, Verheyen, Kris, De Frenne, Pieter, Zellweger, Florian, Coomes, David A., Lenoir, Jonathan, Depauw, Leen, Maes, Sybryn L., Kirby, Keith J., Brunet, Jörg, Kopecký, Martin, Máliš, František, Schmidt, Wolfgang, Heinrichs, Steffi, den Ouden, Jan, Jaroszewicz, Bogdan, Buyse, Gauthier, Spicher, Fabien, Wulf, Monika, Verheyen, Kris, and De Frenne, Pieter
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- 2019
38. Native Plant Diversity and Composition Across a Pinus radiata D.Don Plantation Landscape in South-Central Chile—The Impact of Plantation Age, Logging Roads and Alien Species
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Heinrichs, Steffi, Pauchard, Aníbal, and Schall, Peter
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indicator species ,gamma-diversity ,forest conservation ,Nothofagus glauca ,forest management ,homogenization ,lcsh:Plant ecology ,lcsh:QK900-989 ,forest roads ,age class ,extinction debt ,stand maturation - Abstract
Alien tree plantations are expanding globally with potential negative effects for native biodiversity. We investigated plant species diversity and composition in a Pinus radiata landscape in south-central Chile, a biodiversity hotspot, by sampling understory vegetation in different plantation age classes, along forest roads and in natural forest remnants in order to find effective conservation measures for native biodiversity. Plantations, including different age classes and roadsides, maintained high native species richness at the landscape scale but supported a completely different community composition than natural forests. Thus, natural forest remnants must be conserved as plantations cannot replace them. Certain natural forest species occurred frequently in mature plantations and can represent starting points for retaining natural elements in plantations. Generalist native and alien species benefited from plantation management, mainly in young plantations and along roadsides. Stand maturation and a closed canopy, though, reduced alien species occurrences within plantations. Along roads, shade-tolerant aliens should be monitored and removed as they can potentially invade natural forests. Native species conservation in plantations requires a holistic approach of the full mosaic of land uses including the protection of remaining natural forests, alien species monitoring along roadsides and patches with continuous canopy cover to reduce pressure by alien species.
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- 2018
39. Effect of phenology, nutrient availability and windthrow on flowering of Allium ursinum – results from long-term monitoring and experiments
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Heinrichs, Steffi, Dierschke, Hartmut, Kompa, Thomas, and Schmidt, Wolfgang
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disturbance ,nitrogen deposition ,climate change ,fertilization ,beech forests ,phenological phases ,sh85015976 Botany ,permanent plots ,phosphorus ,reproductive investment ,masting ,plant population and community dynamics - Abstract
Allium ursinum, a dominant herb layer species in nutrient rich, deciduous forests of Central Eu-rope, has considerably expanded in the past decades. As this species mainly relies on regeneration by seeds, we wanted to analyse if and how the timing of phenological phases, climatic factors and resource availability correlated with flowering intensity as a potential factor for its success. We rec-orded annual inflorescence numbers in a population of the Göttinger Wald from 1981 until 2017 and conducted phenological observations across the same time span. In addition, inflorescences were counted in a fertilization experiment contrasting a control with a nitrogen, a phosphorus and a nitro-gen + phosphorus fertilization variant from 2010 to 2017. To investigate the effect of disturbance, inflorescence numbers were counted two to four years after a local summer storm in the southwest-ern foothills of the Harz Mountains in different disturbance categories after windthrow. Our results demonstrate that the length of the growing period for A. ursinum was a strong predic-tor of the number of inflorescences produced in the following year from 1981 to 2017. Climatic factors that had a significant effect on inflorescence numbers were all linked to growing period length. The effect of an increasing trend in growing period length on inflorescence numbers of A. ursinum, was, however, not directly obvious through an increasing flowering intensity with time. Instead, an exceptionally long growing period in 1991 synchronized the flowering behaviour of the population leading to years with a very high flowering intensity. These recurrent high flowering years may have facilitated the expansion of A. ursinum e.g., by increasing the probability of successful seedling establishment or of an accidental dispersal by ungulates. Results of the fertilization experi-ment indicate that atmospheric nitrogen deposition alone does not lead to an increase in inflorescence numbers. Highest numbers were recorded with a combined application of nitrogen and phosphorus. Inflorescence numbers also benefited from an increase in light availability after windthrow but de-creased in the third year after disturbance. Nevertheless, the high reproductive effect after disturb-ance might enable the persistence of this closed forest specialist against other competitors. Overall our results indicate that recurrent high flowering years induced by long growing periods and a high resource availability including light, phosphorus and nitrogen may have influenced the successful expansion of A. ursinum in the past decades and can explain new occurrences and the efficient gap filling in already A. ursinum-rich stands.
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- 2018
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40. Seasonal drivers of understorey temperature buffering in temperate deciduous forests across Europe
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Zellweger, Florian, primary, Coomes, David, additional, Lenoir, Jonathan, additional, Depauw, Leen, additional, Maes, Sybryn L., additional, Wulf, Monika, additional, Kirby, Keith J., additional, Brunet, Jörg, additional, Kopecký, Martin, additional, Máliš, František, additional, Schmidt, Wolfgang, additional, Heinrichs, Steffi, additional, den Ouden, Jan, additional, Jaroszewicz, Bogdan, additional, Buyse, Gauthier, additional, Spicher, Fabien, additional, Verheyen, Kris, additional, and De Frenne, Pieter, additional
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- 2019
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41. Litter quality, land-use history, and nitrogen deposition effects on topsoil conditions across European temperate deciduous forests
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Maes, Sybryn L., primary, Blondeel, Haben, additional, Perring, Michael P., additional, Depauw, Leen, additional, Brūmelis, Guntis, additional, Brunet, Jörg, additional, Decocq, Guillaume, additional, den Ouden, Jan, additional, Härdtle, Werner, additional, Hédl, Radim, additional, Heinken, Thilo, additional, Heinrichs, Steffi, additional, Jaroszewicz, Bogdan, additional, Kirby, Keith, additional, Kopecký, Martin, additional, Máliš, František, additional, Wulf, Monika, additional, and Verheyen, Kris, additional
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- 2019
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42. Landscape-Scale Mixtures of Tree Species are More Effective than Stand-Scale Mixtures for Biodiversity of Vascular Plants, Bryophytes and Lichens
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Heinrichs, Steffi, primary, Ammer, Christian, additional, Mund, Martina, additional, Boch, Steffen, additional, Budde, Sabine, additional, Fischer, Markus, additional, Müller, Jörg, additional, Schöning, Ingo, additional, Schulze, Ernst-Detlef, additional, Schmidt, Wolfgang, additional, Weckesser, Martin, additional, and Schall, Peter, additional
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- 2019
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43. Environmental drivers interactively affect individual tree growth across temperate European forests
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Maes, Sybryn L., primary, Perring, Michael P., additional, Vanhellemont, Margot, additional, Depauw, Leen, additional, Van den Bulcke, Jan, additional, Brūmelis, Guntis, additional, Brunet, Jörg, additional, Decocq, Guillaume, additional, den Ouden, Jan, additional, Härdtle, Werner, additional, Hédl, Radim, additional, Heinken, Thilo, additional, Heinrichs, Steffi, additional, Jaroszewicz, Bogdan, additional, Kopecký, Martin, additional, Máliš, František, additional, Wulf, Monika, additional, and Verheyen, Kris, additional
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- 2018
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44. Key ecological research questions for Central European forests
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Ammer, Christian, primary, Fichtner, Andreas, additional, Fischer, Anton, additional, Gossner, Martin M., additional, Meyer, Peter, additional, Seidl, Rupert, additional, Thomas, Frank M., additional, Annighöfer, Peter, additional, Kreyling, Jürgen, additional, Ohse, Bettina, additional, Berger, Uta, additional, Feldmann, Eike, additional, Häberle, Karl-Heinz, additional, Heer, Katrin, additional, Heinrichs, Steffi, additional, Huth, Franka, additional, Krämer-Klement, Klara, additional, Mölder, Andreas, additional, Müller, Jörg, additional, Mund, Martina, additional, Opgenoorth, Lars, additional, Schall, Peter, additional, Scherer-Lorenzen, Michael, additional, Seidel, Dominik, additional, Vogt, Juliane, additional, and Wagner, Sven, additional
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- 2018
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45. Flora und Vegetation der Lengder Burg im Göttinger Wald – Ein Hotspot der Phytodiversität und seine Veränderungen seit 1950
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Schmidt, Wolfgang and Heinrichs, Steffi
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ddc:580 - Abstract
Steilhänge der Mittelgebirge weisen eine kleinräumige standörtliche Vielfalt auf und wurden aufgrund ihrer exponierten Lage bereits frühzeitig durch den Menschen u. a. als Befestigungsanlage genutzt. Daraus resultierte häufig eine hohe floristische und vegetationskundliche Diversität mit hohem Naturschutzwert. Durch Umwelt- und Nutzungsveränderungen hat sich aber auch an diesen Standorten in den letzten Jahrzehnten ein starker Wandel vollzogen. Durch Auswertung alter Florenlisten und Vegetationsaufnahmen und durch aktuelle Erhebungen wollen wir die Vegetationszusammensetzung der Lengder Burg, eines Steilhangs auf Unterem Muschelkalk im südlichen Göttinger Wald (Süd-Niedersachsen, Deutschland), und ihre Veränderung aufzeigen und Rückschlüsse für die zukünftige Behandlung ziehen. Dazu wurden Angaben zur Gefäßpflanzenflora aus dem Zeitraum 1950 bis 1995 mit einer aktuellen floristischen Kartierung des Gesamtgebiets von 2016 verglichen. Die Vegetationszusammensetzung wurde anhand von 37 Vegetationsaufnahmen aus dem früheren Zeitraum harakterisiert. 29 dieser Flächen wurden 2009 bis 2016 erneut aufgenommen. Räumliche und zeitliche Unterschiede in der Diversität und Artenzusammensetzung wurden hinsichtlich verschiedener standörtlicher Parameter und ökologischer Artengruppen analysiert. Die Vegetation lässt sich zwei Gruppen zuordnen: 1. Das Carici-Fagetum und seine Kontaktgesellschaften an südlich und westlich exponierten Steilhängen. 2. Das Hordelymo-Fagetum mit verschiedenen Ausbildungen auf dem Plateau und an flacheren Süd- und Nordhangbereichen. Im Carici-Fagetum ist ein deutlicher Diversitätsverlust und eine Zunahme in der Dominanzstruktur der Krautschicht zu erkennen, der im Vergleich der Aufnahmezeiträume auf eine zunehmende Homogenisierung der Vegetation hinweist. Zurückgegangen sind dabei besonders die typischen Kenn- und Trennarten dieser Waldgesellschaft bei gleichzeitiger Zunahme der Buche in der Verjüngung. Im Hordelymo-Fagetum bewirkt neben Gehölzen in der Strauch- und Krautschicht vor allem die Zunahme von Allium ursinum eine homogenere Artenzusammensetzung, jedoch ohne Diversitätsverlust. Neben Stickstoffeinträgen, dem Klimawandel sowie einem reduzierten Rehwild-Verbiss bedingt besonders der Nutzungswandel diese Veränderungen. Vor allem im Carici-Fagetum wirkte sich der Übergang zwischen früherer Nieder- und Mittelwald-Nutzung mit Waldweide über eine fast 100jährige Hochwald-Nutzung bis zum jetzigen Schutzwald stark aus. Gleichwohl weisen die steilen Hänge weiterhin einen hohen Anteil an Rote-Liste-Arten auf und tragen wesentlich zur hohen Biodiversität des Gebiets bei. Veränderungen in der Vegetation der Lengder Burg spiegeln die Veränderungen im Göttinger Wald insgesamt wider. Kleinflächige Offenhaltungsmaßnahmen zur Erhaltung wertvoller floristischer Elemente sind teilweise erfolgreich. Kleinwüchsige, lichtbedürftige Magerkeitszeiger verschwinden jedoch zunehmend aus den sich entwickelnden, hochwüchsigen Stauden-Säumen. In den benachbarten, unbewirtschafteten Hangbuchenwäldern sorgt die fehlende Nutzung nach Jahrhunderten der Auflichtung und Aushagerung für eine Sukzession in Richtung mesophilen Kalkbuchenwalds. Steep slopes of low mountain ranges have a high small-scale heterogeneity and were early used by humans as fortification in times of danger. This caused a high floristic diversity with high conservation value. Environmental and management changes have, however, influenced these sites in the past decades. By analyzing old floristic lists and vegetation relevés and by resurveying we want to characterize the vegetation composition of the Lengder Burg, a steep slope area on Triassic limestone in the Göttinger Wald (southern Lower Saxony, Germany), demonstrate its changes, and give conclusions for its conservation. Floristic records from 1950 to 1995 were contrasted to new records of the study area from 2016. Vegetation composition was assessed using 37 vegetation relevés from the period 1950 to 1995. 29 of these relevés were resurveyed between 2009 and 2016. Spatial and temporal dynamics in species diversity and composition were analyzed regarding site conditions and ecological species groups. The vegetation can be grouped into 1) the Carici-Fagetum and adjacent communities at the southern and western exposed steep slopes and 2) the Hordelymo-Fagetum in different formations at the plateau and at flat-angled southern and northern slopes. The Carici-Fagetum shows a clear diversity loss causing a homogenization of the vegetation when contrasting both survey periods. Thereby, characteristic species decreased while beech increased in the herb layer. The increasing abundance of woody species in the understorey and of Allium ursinum led to a more homogeneous vegetation composition in the Hordelymo-Fagetum as well. There was, however, no diversity loss. Besides nitrogen depositions, climate change and a decreasing browsing intensity, land use changes are mainly responsible for these dynamics. The conversion from coppice and coppice-with-standards with wood pasture to high forest management applied for one century to todays no management seems to have especially affected the Carici-Fagetum. Despite species losses, though, the steep slopes maintained a high proportion of redlist species and determine the high biodiversity of the area. Vegetation changes at the Lengder Burg reflect the dynamics of the total Göttinger Wald area. Small-scale conservation measures by opening stands are successful in maintaining some valuable floristic elements. Small-statured, light-demanding species, indicative of nutrient poor conditions were, however, outcompeted by tall-growing forbs in these clearings. The adjacent, unmanaged Carici-Fagetum stands are developing towards mesic beech forests due to management abandonment after centuries of usage and soil impoverishment.
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- 2017
46. Drivers of above‐ground understorey biomass and nutrient stocks in temperate deciduous forests.
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Landuyt, Dries, Maes, Sybryn L., Depauw, Leen, Ampoorter, Evy, Blondeel, Haben, Perring, Michael P., Brūmelis, Guntis, Brunet, Jörg, Decocq, Guillaume, Ouden, Jan, Härdtle, Werner, Hédl, Radim, Heinken, Thilo, Heinrichs, Steffi, Jaroszewicz, Bogdan, Kirby, Keith J., Kopecký, Martin, Máliš, František, Wulf, Monika, and Verheyen, Kris
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DECIDUOUS forests ,FOREST biomass ,TEMPERATE forests ,BIOMASS ,SOIL acidity ,STRUCTURAL equation modeling - Abstract
The understorey in temperate forests can play an important functional role, depending on its biomass and functional characteristics. While it is known that local soil and stand characteristics largely determine the biomass of the understorey, less is known about the role of global change. Global change can directly affect understorey biomass, but also indirectly by modifying the overstorey, local resource availability and growing conditions at the forest floor.In this observational study across Europe, we aim at disentangling the impact of global‐change drivers on understorey biomass and nutrient stocks, from the impact of overstorey characteristics and local site conditions. Using piecewise structural equation modelling, we determine the main drivers of understorey biomass and nutrient stocks in these forests and examine potential direct and indirect effects of global‐change drivers.Tree cover, tree litter quality and differences in former land use were the main drivers of understorey biomass and nutrient stocks, via their influence on understorey light and nitrogen availability and soil acidity. Other global‐change drivers, including climate and nitrogen deposition, had similar indirect effects, but these were either weak or only affecting nutrient concentrations, not stocks.Synthesis. We found that direct effects of global‐change drivers on understorey biomass and nutrient stocks were absent. The indirect effects of global change, through influencing resource availability and growing conditions at the forest floor, were found to be less important than the effects of overstorey cover and composition. These results suggest that understorey biomass and nutrient stocks might respond less to global change in the presence of a dense overstorey, highlighting the buffering role of the overstorey in temperate forests. [ABSTRACT FROM AUTHOR]
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- 2020
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47. European beech controls biodiversity in mixed forests – Mixed versus pure forests of beech and conifers
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Heinrichs, Steffi, primary, Gossner, Martin. M., additional, and Schall, Peter, additional
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- 2018
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48. In beech forest landscapes composed of different management systems biodiversity increases with the share of even-aged forests.
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Schall, Peter, primary, Gossner, Martin. M., additional, Heinrichs, Steffi, additional, and Ammer, Christian, additional
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- 2018
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49. Vegetation Succession on Degraded Sites in the Pomacochas Basin (Amazonas, N Peru)—Ecological Options for Forest Restoration
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Walentowski, Helge, primary, Heinrichs, Steffi, additional, Hohnwald, Stefan, additional, Wiegand, Alexander, additional, Heinen, Henry, additional, Thren, Martin, additional, Gamarra Torres, Oscar, additional, Sabogal, Ana, additional, and Zerbe, Stefan, additional
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- 2018
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50. Bringing ecosystem services into forest planning – Can we optimize the composition of Chilean forests based on expert knowledge?
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Uhde, Britta, primary, Heinrichs, Steffi, additional, Stiehl, Carolin Ronja, additional, Ammer, Christian, additional, Müller-Using, Burkhard, additional, and Knoke, Thomas, additional
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- 2017
- Full Text
- View/download PDF
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