Tri‐trophic interaction networks along a tree diversity gradient of BEF‐China

Aktivität: Vorträge und GastvorlesungenKonferenzvorträgeForschung

Michael Staab - Sprecher*in

    Multitrophic interactions involving producers and consumers are central elements of all ecosystems. In

    forests, higher plants are the dominant producers and insect herbivores the most important consumers.
    Besides visible consumption of plant tissue, more cryptic herbivory occurs through sap‐sucking insects,
    particularly hemipterans. Some of these insects are involved in mutualistic associations with ants called
    trophobiosis. The ants collect honeydew, a sugary liquid produced by the sucking insects and provide
    protection  against  predators,  parasitoids,  and  pathogens.  Trophobiosis  are  common,  especially  in disturbed habitats. Nevertheless, it is still not known how multitrophic interactions are affected by tree
    species diversity and tree diversity loss.
    We observed over 7000 trees in an early successional forest in South‐East China. The field sites are part
    of  the  BEF‐China  ecosystem  functioning  experiment.  Altogether,  408  interactions  between  plants,
    sucking insects, and ants could be recorded on 15 tree species from five families. Three species of oaks
    (Quercus ssp.) contributed to more than 55% of interactions, being by far the most preferred plants by
    sucking  insects.  Around  30  species  of  sucking  insects  were  collected,  most  of  them  Aphididae.  They
    were tended by 17 species of ants. Polyrhachis dives was the dominant ant species in the study site. It
    tended 60% of the interactions.
    We are currently analyzing how tree species diversity affects the overall structure and specialization of
    the trophobiotic networks. This will help to predict the consequences of tree species loss for sap‐sucking
    herbivores and plant fitness.

    10.09.201214.09.2012

    Veranstaltung

    42. Jahresversammlung der Gesellschaft für Ökologie - GfÖ 2012: From Basic Ecology to the Challenges of Modern Society

    10.09.1214.09.12

    Lüneburg , Deutschland

    Veranstaltung: Konferenz

    Zuletzt angesehen

    Publikationen

    1. Metaphors and Paradigms of the Language Animal—or—The Advantage of seeing “Time Is a Resource” as a Paradigm
    2. Design of an Information-Based Distributed Production Planning System
    3. Developing a sustainable platform for entity annotation benchmarks
    4. Action rate models for predicting actions in soccer
    5. BUSINESS MODELS IN BANKING: A CLUSTER ANALYSIS USING ARCHIVAL DATA
    6. Optimal trajectory generation for camless internal combustion engine valve control
    7. On the Appropriate Methodologies for Data Science Projects
    8. Adaptive wavelet methods for saddle point problems
    9. Finite element based determination and optimization of seam weld positions in porthole die extrusion of double hollow profile with asymmetric cross section
    10. Integration durch soziale Kontrolle?
    11. Markups and Concentration in the Context of Digitization
    12. Cue predictability changes scaling in eye-movement fluctuations
    13. Can a Revision of the Universal Service Scope Result in Substantive Change?
    14. Multiscale solutions of the electromagnetic continuity differential equation using packets of harmonic wavelets
    15. Legitimation problems of participatory processes in technology assessment and technology policy
    16. Using an adaptive memory strategy to improve a multistart heuristic for sequencing by hybridization
    17. "And I Think That Is a Very Straightforward Way of Dealing With It''
    18. Towards Faster IT Delivery: Identifying Factors Limiting the Speed of Enterprise IT
    19. What is missing in the EVS?
    20. Biodegradability and genotoxicity of surface functionalized colloidal silica (SiO2) particles in the aquatic environment
    21. Reconciling conservation and development in protected areas of the Global South
    22. Building trust
    23. An Unusual Encounter with Oneself
    24. Performance of an IMU-Based Sensor Concept for Solving the Direct Kinematics Problem of the Stewart-Gough Platform
    25. Root-root interactions: extending our perspective to be more inclusive of the range of theories in ecology and agriculture using in-vivo analyses
    26. Sprachen in Liechtenstein

    Presse / Medien

    1. Lasst sie toben