Markus Bernhardt-Römermann

Institut für Ökologie und Evolution | Professur für Ökologie | AG Vegetationsökologie

Ziegenhainer Tal bei Jena

Foto: Markus Bernhardt-Römermann
Ziegenhainer Tal bei Jena

Markus Bernhardt-Römermann, apl. Prof. Dr.

Leiter AG Vegetationsökologie
Institut für Ökologie und Evolution | Professur für Ökologie
Markus Bernhardt-Römermann
Foto: Jürgen Scheere
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Inspektorhaus, Raum 104
Fürstengraben 26
07743 Jena Google Maps – LageplanExterner Link

Forschungsinteressen

  • Vegetationsveränderungen in Folge von Landnutzungs-, Klimawandel und Nährstoffeinträgen
  • Critical loads für Stickstoff
  • Waldökologie, insb. Naturwaldforschung
  • Vegetationsdatenbanken und Dauerbeobachtung 
  • Savannenökologie
  • Statistik in der Vegetationsökologie
  • Funktionelle Merkmale

Lebenslauf

  Beschäftigungen
Seit 10/2013 Wissenschaftlicher Angestellter am Institut für Ökologie und Evolution, Fakultät für Biowissenschaften, Friedrich-Schiller-Universität Jena
01/2012 bis 09/2013 Wissenschaftlicher Angestellter am Institut für Botanik, AG Ökologie und Naturschutz, Fachbereich Biologie, Universität Regensburg
  • Habilitation zum Thema “Understanding vegetation dynamics – applications and methodological aspects of functional analyses”; November 2014
11/2009 bis 12/2011 Wissenschaftlicher Angestellter der Abteilung Ökologie und Geobotanik, Institut für Ökologie, Evolution & Diversität, Fachbereich Biowissenschaften, Goethe-Universität Frankfurt a.M.
  • Elternzeit; 02/2011 und 09/2011 bis 12/2011
04/2006 bis 10/2009 Wissenschaftlicher Angestellter der Abteilung Waldbau und Waldökologie der gemäßigten Zonen, Fakultät für Forstwissen­schaften und Waldökologie, Georg-August-Universität Göttingen
  • Elternzeit; 01/2009 bis 10/2009

06/2005 bis 03/2006

 Wissenschaftlicher Angestellter am Lehrstuhl für Botanik, Fachbereich Biologie, Universität Regensburg
10/2001 bis 05/2005 Wissenschaftlicher Angestellter am Fachgebiet Geobotanik, Department für Ökologie, Wissenschaftszentrum Weihenstephan der TU München, Studienfakultät für Forstwissenschaften und Ressourcenmanagement
  • Promotion zu dem Thema: Reaktionen der Wald­bodenvegetation auf erhöhte Stickstoffeinträge: Analyse und Vorher­sage von Vegetationsveränderungen anhand von funktionellen Merkmalen
  • Lehrauftrag für die Geobotanischen Übungen am Fachbereich Wald und Forstwirtschaft der Fachhochschule Weihenstephan (04/2004 bis 06/2004)
04/2001 bis 07/2001 Ökologisches Praktikum an der Université Paul Cézanne (Aix-Marseille III, Südfrankreich); Projekt: Ecology of the Mediterranean grassland ‘La Crau’ (Provence, France)
10/1995 bis 04/2001 Biologiestudium (Diplom) an der Philipps-Universität Marburg mit den Hauptfächern Spezielle Botanik, Ökologie und Geographie
  • Diplomarbeit im Fachgebiet Spezielle Botanik zu dem Thema Vergleichende Untersuchungen zur Blattanatomie und -morphologie ausgewählter Araliaceae

Publikationen

Eine komplette Liste meiner Publikationen finden Sie auf den Seiten der Vegetationsökologie oder bei ResearcherID.Externer Link

45 Publikationen filtern

Die Publikationen filtern

Hervorgehobene Autoren sind Mitglieder der Forschungsgruppe.

  1. Greater Thermophilisation in Communities of Juveniles Than Adults in Temperate European Forests

    Autoren
    M. Caron, P. Vangansbeke, F. Zellweger, K. Verheyen, L. Baeten, R. Hédl, M. Bernhardt-Römermann, I. Berki, J. Brunet, G. Decocq, S. Díaz, T. Dirnböck, T. Durak, T. Heinken, B. Jaroszewicz, M. Kopecký, J. Lenoir, M. Macek, M. Malicki, F. Máliš, T. Nagel, P. Petřík, K. Reczyńska, R. Pielech, W. Schmidt, K. Świerkosz, B. Teleki, M. Wulf, N. Tobias, F. Rodríguez-Sánchez, D. Waller, P. De Frenne
    Erscheinungsjahr
    Erschienen in:
    Journal of vegetation science: official organ of the International Association for Vegetation Science
    Universitätsbibliographie Jena:
    fsu_mods_00030123Externer Link

  2. Forest type consistently shapes bird communities across seasons: Insights from passive acoustic monitoring

    Autoren
    E. Felgentreff, D. Singer, M. Bernhardt-Römermann
    Erscheinungsjahr
    Erschienen in:
    Forest Ecology and Management
    Forest management affects forest-dwelling taxa, such as birds, which play diverse roles in ecosystem functioning. While birds are frequently studied, surveys typically are conducted during the breeding season, overlooking non-breeding periods during which birds may have different resource requirements. Understanding year-round dynamics of habitat use is essential to inform management practices that support bird communities. We used passive acoustic monitoring to study bird assemblages across a gradient from deciduous broadleaved to coniferous forest stands around the city of Jena (Thuringia, Germany). We investigated how season, forest type, and environmental variables influence species taxonomic diversity, community composition, and functional diversity. Birds were monitored in 30-day periods during winter, spring, summer, and autumn 2024 using AudioMoth recorders and BirdNET for species identification. Species diversity varied significantly by season, peaking in spring and summer and declining in autumn and winter; forest type had no effect. Community composition was primarily driven by season, but within seasons, birds clustered by forest type. Season influenced functional dispersion and dissimilarity, but not evenness; forest type influenced only functional dispersion. Overall, seasonality, especially migration dynamics, most strongly impacts bird diversity. Within seasons, forest type structures community composition but does not affect taxonomic or functional diversity. Persistent functional diversity despite taxonomic shifts suggests functional redundancy, indicating resilience to habitat change. Coniferous stands emerged as harbouring distinct, but equally diverse bird species compared to deciduous stands. Forest managers should prioritise a mix of forest types to sustain rich bird communities and ensure long-term ecosystem functionality.
    Universitätsbibliographie Jena:
    fsu_mods_00034616Externer Link

  3. Contrasting thermophilization among forests, grasslands and alpine summits

    Autoren
    K. Yue, P. Vangansbeke, I. Myers-Smith, D. Waller, K. Verheyen, M. Bernhardt-Römermann, L. Baeten, I. Staude, A. Bjorkman, R. Hédl, C. Andrews, E. Barni, T. Becker, A. Becker-Scarpitta, J. Benito-Alonso, J. Bennie, I. Berki, V. Blüml, J. Brunet, J. Bullock, H. Van Calster, M. Carbognani, M. Chudomelová, D. Closset-Kopp, P. Dan Turtureanu, G. Daskalova, G. Decocq, J. Dick, M. Diekmann, T. Dirnböck, T. Durak, O. Eriksson, B. Erschbamer, B. Graae, T. Heinken, M. Hermy, P. Horchler, U. Jandt, B. Jaroszewicz, R. Kanka, J. Kollár, M. Kopecký, T. Kudernatsch, A. Lamprecht, J. Lenoir, M. Macek, M. Malicki, F. Máliš, O. Michelsen, F. Mitchell, T. Naaf, T. Nagel, M. Newman, A. Newton, L. Nicklas, L. Oddi, A. Orczewska, S. Orsenigo, A. Ortmann-Ajkai, J. Ouden, H. Pauli, G. Peterken, P. Petřík, R. Pielech, M. Puşcaş, C. Randin, K. Reczyńska, C. Rixen, F. Schei, W. Schmidt, J. Šebesta, A. Stachurska-Swakon, T. Standovár, K. Świerkosz, B. Teleki, J. Theurillat, T. Ursu, T. Vanneste, M. Vellend, P. Vergeer, O. Vild, L. Villar, P. Vittoz, M. Winkler, S. Wipf, F. Wu, S. Zhang, P. De Frenne
    Erscheinungsjahr
    Erschienen in:
    Nature: the international journal of science
    Universitätsbibliographie Jena:
    fsu_mods_00035471Externer Link

  4. Disturbance regimes drive widespread plant range disequilibrium in Europe alongside climate change

    Autoren
    S. Pang, R. Buitenwerf, O. Baines, S. Aćić, M. Bernhardt-Römermann, I. Biurrun, G. Bonari, H. Bruun, C. Byun, E. Chacón-Madrigal, A. Chiarucci, A. Dang-Le, P. De Frenne, A. Dias, J. Dolezal, E. Garbolino, B. Güler, N. Hough-Snee, J. Kattge, J. Lenoir, A. Martin, S. Michaletz, V. Minden, A. Mori, Ü. Niinemets, W. Schmidt, M. Šibíková, G. Swacha, K. Van Meerbeek, J. Svenning
    Erscheinungsjahr
    Erschienen in:
    Nature Ecology and Evolution
    Species distributions often fail to match climatically suitable areas, resulting in range disequilibrium. Although recent studies have focused on mismatches arising from lags in biotic responses to climate change (for example, extinction and colonization lags), disturbance processes may also determine whether species occupy otherwise climatically suitable areas, for example, by altering vegetation structure and light regimes. Here we assess climate-change and disturbance-driven disequilibrium for 3,047 vascular plant species across Europe using species distribution models and >1.1 million vegetation plots. Almost all species (99%) show disturbance-driven disequilibrium, revealing mismatches that are strongly structured along disturbance gradients, consistent with alternative vegetation states. We identified disequilibrium associated with recent climate change in 52% of species, with ranges best predicted by climates 10–18 years before sampling and most pronounced among closed-canopy species, probably reflecting under-canopy microclimatic buffering. These findings demonstrate that climate change and disturbance jointly shape widespread disequilibrium in European plant distributions, with disturbance regimes strongly structuring the realization of climatic suitability across contemporary landscapes. Accounting for both disturbance regimes and temporal lags in climate response is therefore essential for improving biodiversity forecasts and guiding conservation strategies.
    Universitätsbibliographie Jena:
    fsu_mods_00037958Externer Link

  5. The direct seeding of pedunculate oak (Quercus robur) and silver fir (Abies alba): environmental constraints, the role of seed provenance, and implications for forest biodiversity

    Autor
    T. Medicus
    Erscheinungsjahr
    Central European forests are currently experiencing a widespread decline in integrity and health due to the impacts of climate change. In particular, the increased frequency of drought has led to a surge in forest mortality, irreversibly altering the composition of these forests. To adapt forests to changing conditions, forest practitioners and researchers are working to establish speciesdiverse forests with greater climatic resilience. One of the most crucial questions in this effort is species selection. As decisions made today will shape the future of tomorrow's forests, they need to be made on a well-established scientific basis. However, this diversification of forests introduces a second challenge regarding how to achieve this goal. Since the potential for natural regeneration to establish such forests is often limited, artificial regeneration is necessary to increase tree species diversity. This dissertation contributes to the ongoing discourse by evaluating the potential of the two tree species, Abies alba and Quercus robur, for their use in climate-adapted forests and investigating the impact of the artificial regeneration method of direct seeding on biodiversity in forests and its use for the regeneration of the two species. In the first manuscript, the long-term impact of direct seeding on forest floor species richness within closed forest stands was investigated through a space-for-time-substitution vegetation survey, which revealed short-term increases in both herbaceous and bryophyte diversity, as well as differences in the recolonization rates of the two groups. A climate chamber experiment evaluated the drought tolerance of A. alba with respect to provenance differences by subjecting seedlings from four different provenances to moderate and severe soil water deficits and evaluating their growth and photosynthetic responses. The experiment revealed the species' high tolerance for moderate drought in the seedling stage, and that provenance differences influence recovery from severe drought. The third manuscript focused on different biotic and abiotic microsite conditions and their influence on both species growth and photosynthetic efficiency, highlighting the importance of the light regime and longterm water availability for seedlings originating from direct seeding. Building on the results of the manuscripts and expanding on them, I then discussed possible ways to further improve the effect of direct seeding on biodiversity through the combination of different species. I then showcased the provenance differences in drought adaptations of Q. robur, and extended this review to genetic lineages of both species. Lastly, I synthesized the results and discussed them towards their practical application, formulating management interventions for the improvement of microsite conditions utilizing higher species richness and seed source selection as tools of adaptation.
    Universitätsbibliographie Jena:
    fsu_mods_00036736Externer Link

  6. The influence of environment on the development of Abies alba and Quercus robur seedlings in montane acidophilous spruce forests

    Autoren
    T. Medicus, A. Tischer, D. Schellenberger Costa, B. Michalzik, K. Wagner, M. Bernhardt-Römermann
    Erscheinungsjahr
    Erschienen in:
    Journal of forestry research
    The conversion of Norway spruce stands into mixed-species forests is currently one of the most pressing challenges to ensure the stability of forest ecosystems in Central Europe. Recently, direct seeding as a method of artificial regeneration and species (re-)introduction has received increased attention in forestry. Considering that environmental conditions have a strong influence on the growth performance of direct-seeded plants, we investigated how differences in soil and environmental conditions affect the growth performance of silver fir (Abies alba Mill.) and pedunculate oak (Quercus robur L.) seedlings. Our study focused on closed-canopy and open-canopy (canopy removal) Norway spruce stands in a low mountain forest in central Germany. Our data indicates that the growth performance of A. alba and Q. robur seedlings is mainly influenced by the availability of photosynthetically active radiation (PAR). The growth of A. alba increased with a higher PAR-ratio, whereas the photosynthetic efficiency, as measured by F v /F m (chlorophyll fluorescence), showed sensitivity to it. Conversely, the growth performance of Q. robur showed a linear increase with light availability. Nutrient availability was the second most important factor, while soil pH alone showed no significant effect. The volumetric water content showed no direct effect, though drought appeared to reduce growth. The results stress that A. alba is sensitive to abrupt changes in the light regime at this early stage of development, highlighting the key role of canopy longevity in facilitating growth. Q. robur, on the other hand, appears to be well suited to sites at high risk of canopy loss due to disturbance or where the canopy has previously been removed.
    Universitätsbibliographie Jena:
    fsu_mods_00029891Externer Link

  7. Habitat-specific trends in taxonomic, functional, and phylogenetic diversity in European plant communities over a century

    Autoren
    S. Kambach, U. Jandt, A. Acosta, J. Álvarez-Martínez, I. Axmanová, M. Bazzichetto, E. Bergmeier, M. Bernhardt-Römermann, I. Biurrun, G. Bonari, M. Carboni, M. Carlucci, M. Carranza, B. Cerabolini, A. Chiarucci, M. Chytrý, G. Damasceno, J. Dengler, M. De Sanctis, J. Divíšek, J. Dolezal, S. Dullinger, F. Essl, K. Friesová, V. Fontana, E. Garbolino, M. Glaser, A. González-Robles, B. Güler, G. Hähn, M. Hájek, T. Hruska, E. Illa, F. Jansen, S. Jansen, A. Jentsch, B. Jiménez-Alfaro, W. Daniel Kissling, I. Knollová, G. Losapio, U. Liu, J. Lenoir, F. Lens, B. Lenzner, A. Perea, L. Méndez, J. Messier, A. Mori, F. Napoleone, R. Norum, A. Novakovskiy, R. Onstein, R. Pakeman, J. Peñuelas, P. Petřík, R. Pielech, B. Pinho, P. Poschlod, V. Rašomavičius, C. Roscher, C. Rossi, F. Sabatini, B. Sandel, D. Schellenberger Costa, W. Schmidt, S. Sheremetiev, T. Shovon, M. Spasojevic, N. Swenson, G. Swacha, R. Tarifa, L. Tichý, M. Tomaselli, A. Valdés, K. Van Meerbeek, V. Vandvik, K. Vassilev, M. Večeřa, E. Weiher, T. Wohlgemuth, H. Bruelheide
    Erscheinungsjahr
    Erschienen in:
    Nature Communications
    Despite widespread concern over global biodiversity loss, the balance between gains and losses within local plant communities remains contentious, largely due to a scarcity of integrative, long-term and large-scale analyses across different habitats and multiple facets of biodiversity. Here, we analyse 57,390 vegetation-plot time series of vascular plants across Europe to quantify the average and habitat-specific trends in taxonomic, functional, phylogenetic, and gamma diversity, alongside with changes in threatened Red List, non-native, and specialist versus generalist species. We find that, over the last 100 years, plant communities gained on average 0.7% in vegetation cover and 0.2% in species number per year, associated with gains in functional and phylogenetic diversity, non-native, Red List, and generalist species. Diversity changes are most pronounced in mire and wetland communities. Differences among habitat types and habitat-change trajectory (stable, successional, disturbed), together with the most recent observation year, explain 2.1%-36.6% of the variation in diversity trends. Habitat-specific gamma diversity showed no general trends and only increased in stable grasslands and successional sparsely vegetated habitats. By integrating habitat types and change trajectories, we reconcile some of the conflicting narratives on local biodiversity change in favour of a more nuanced understanding of the observed variation in local biodiversity change.
    Universitätsbibliographie Jena:
    fsu_mods_00036290Externer Link

  8. Reforestation Under Climate Change—A Cross-Regional Deadwood Retention Experiment to Develop Multifunctional Forests on Disturbed Norway Spruce Areas

    Autoren
    B. Putzenlechner, M. Zwanzig, C. Bässler, M. Bernhardt-Römermann, J. Ebert, S. Grieger, P. Koal, H. Oechler, D. Peter, I. Profft, S. Spaleck, F. Steinebrunner, A. Tischer, S. Thorn, A. Wehnert, X. Zhou, F. Huth
    Erscheinungsjahr
    Status
    Prüfung ausstehend
    Erschienen in:
    Ecology and Evolution
    Extreme events such as droughts, heatwaves, storms, and the associated intensification of bark beetle outbreaks in Norway spruce forests in recent years have led to large-scale forest loss in Central Europe. Various options for post-disturbance management exist, from complete clearing to no intervention, but their pros and cons in the context of multifunctional forest management remain unresolved. The interdisciplinary “ResEt-Fi” project (“Pioneering reforestation: Regional management for establishing multifunctional forests on post-disturbed Norway spruce areas”) comprises a cross-regional field trial to test how specific practices of deadwood retention affect the ecological conditions and subsequent reforestation of natural and artificial regeneration. It aims at generating climate-stable mixed forests, balancing ecosystem functioning and socio-economic benefits. Rather than presenting a conventional empirical study with finalized results, we reflect upon an integrated and transferable research framework for investigating post-disturbance forest management across spatial scales. We present the rationale behind different deadwood management strategies, the nested experimental design of the cross-regional field trial, the ecological response framework, upscaling approaches, and future perspectives. Based on this scientific foundation, evidence-based recommendations and application scenarios can be developed to support forest managers and other stakeholders in selecting site-specific post-disturbance management strategies.
    Universitätsbibliographie Jena:
    fsu_mods_00043812Externer Link

  9. Ecological assessment of forest management approaches to develop resilient forests in the face of global change in Central Europe

    Autoren
    F. Huth, A. Tischer, P. Nikolova, H. Feldhaar, A. Wehnert, L. Hülsmann, J. Bauhus, K. Heer, J. Vogt, C. Ammer, U. Berger, M. Bernhardt-Römermann, M. Böhme, H. Bugmann, J. Buse, L. Demant, I. Dörfler, J. Ewald, E. Feldmann, A. Fichtner, M. Gossner, T. Grams, K. Häberle, J. Hagge, H. Hartmann, S. Herzog, A. Kahmen, U. Kohnle, D. Krabel, K. Krämer-Klement, J. Kreyling, M. Manthey, K. Mellert, P. Meyer, A. Mölder, L. Muffler-Weigel, B. Ohse, L. Opgenoorth, B. Rewald, A. Rothe, N. Ruehr, T. Scharnweber, M. Scherer-Lorenzen, J. Schmeddes, J. Schmerbeck, M. Schmidt, D. Seidel, F. Thomas, M. Tiebel, G. von Oheimb, S. Wagner, R. Weigel, M. Wilmking, C. Zang, B. Schuldt
    Erscheinungsjahr
    Erschienen in:
    Basic and applied ecology : journal of the Gesellschaft für Ökologie
    Universitätsbibliographie Jena:
    fsu_mods_00025024Externer Link

  10. Small net local temporal changes in taxonomic, functional, and phylogenetic biodiversity across European temperate forests

    Autoren
    L. Wei, E. De Lombaerde, T. Vanneste, P. Sanczuk, L. Baeten, J. Lenoir, K. De Pauw, K. Verheyen, M. Bernhardt-Römermann, A. Becker-Scarpitta, J. Brunet, M. Chudomelová, G. Decocq, M. Diekmann, T. Durak, R. Hédl, T. Heinken, P. Horchler, B. Jaroszewicz, M. Kopecký, M. Macek, F. Máliš, T. Naaf, T. Nagel, A. Orczewska, P. Petřík, K. Reczyńska, F. Schei, W. Schmidt, J. Šebesta, A. Stachurska-Swakoń, T. Standovár, K. Świerkosz, B. Teleki, H. Van Calster, O. Vild, D. Waller, M. Wulf, P. De Frenne
    Erscheinungsjahr
    Erschienen in:
    New phytologist: international journal of plant science
    Universitätsbibliographie Jena:
    fsu_mods_00027245Externer Link

  12. Impact of fine woody debris enrichment on vegetation and microclimate in managed post-disturbance areas after spruce dieback

    Autor
    H. Großgott
    Erscheinungsjahr
    Large-scale dieback of Norway spruce (Picea abies (L.) H.Karst.) in Central Europe has created extensive post-disturbance areas that are typically managed by salvage logging. While logging residues are often removed or concentrated in skid trails, retaining fine woody debris (FWD) may improve microsite conditions for tree regeneration by modifying microclimate and competing vegetation. This study investigates the effects of local FWD enrichment on microclimate and vegetation cover on Norway spruce calamity areas in the Thuringian Forest and the Thuringian Slate Mountains (Germany). At four study areas, 48 plots with manually enriched FWD were paired with 48 nearby control plots without added woody debris. Soil moisture and soil, surface and near-ground air temperature were recorded with TOMST TMS-4 dataloggers from May to August 2024. Vegetation cover was visually estimated in 50 cm radius plots around the dataloggers. Linear mixed-effects models and, for the vegetation cover, a generalized mixed-effects model with a beta regression were used to test for differences between FWD and control plots. FWD enrichment significantly increased volumetric soil water content by about 4.5 percentage points compared to control plots. Mean and maximum soil temperatures were reduced on FWD plots, and surface temperatures showed buffering. Mean values were lower, daily maxima decreased by more than 4 °C and daily minima increased about 1.4 °C. Effects on near-ground air temperature at 15 cm height were weaker but indicated slightly cooler maxima and higher minima. Total vegetation cover declined from roughly 75% on control plots to about 51% on FWD plots. These results show that local FWD enrichment can create cooler, moister and less densely vegetated microsites on Norway spruce calamity areas. However, further research is needed to test whether the observed changes in microclimate and vegetation translate into improved germination, survival and growth of natural and artificial regeneration in these specific conditions.
    Universitätsbibliographie Jena:
    fsu_mods_00035325Externer Link
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