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  1. Artikel ; Online: Ecology needs to overcome siloed modelling.

    Grimm, Volker

    Trends in ecology & evolution

    2023  Band 38, Heft 12, Seite(n) 1122–1124

    Abstract: Bahlburg et al. re-implemented eight growth models of Antarctic krill and showed that their predictions are all over the place. The authors discuss the reasons for this and how more coherence in modelling could be achieved through systematic model ... ...

    Abstract Bahlburg et al. re-implemented eight growth models of Antarctic krill and showed that their predictions are all over the place. The authors discuss the reasons for this and how more coherence in modelling could be achieved through systematic model comparison and integration. For this, we need a common language.
    Mesh-Begriff(e) Animals ; Ecology ; Euphausiacea ; Antarctic Regions
    Sprache Englisch
    Erscheinungsdatum 2023-09-22
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 284965-3
    ISSN 1872-8383 ; 0169-5347
    ISSN (online) 1872-8383
    ISSN 0169-5347
    DOI 10.1016/j.tree.2023.09.011
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel: Modeling the emergence of migratory corridors and foraging hot spots of the green sea turtle

    Dalleau, Mayeul / Kramer-Schadt, Stephanie / Grimm, Volker

    Ecology and evolution, 9(18):10317-10342

    2019  

    Abstract: Environmental factors shape the spatial distribution and dynamics of populations. Understanding how these factors interact with movement behavior is critical for efficient conservation, in particular for migratory species. Adult female green sea turtles, ...

    Körperschaft Leibniz-Institut für Zoo- und Wildtierforschung (Berlin)
    Abstract Environmental factors shape the spatial distribution and dynamics of populations. Understanding how these factors interact with movement behavior is critical for efficient conservation, in particular for migratory species. Adult female green sea turtles, Chelonia mydas, migrate between foraging and nesting sites that are generally separated by thousands of kilometers. As an emblematic endangered species, green turtles have been intensively studied, with a focus on nesting, migration, and foraging. Nevertheless, few attempts integrated these behaviors and their trade‐offs by considering the spatial configurations of foraging and nesting grounds as well as environmental heterogeneity like oceanic currents and food distribution. We developed an individual‐based model to investigate the impact of local environmental conditions on emerging migratory corridors and reproductive output and to thereby identify conservation priority sites. The model integrates movement, nesting, and foraging behavior. Despite being largely conceptual, the model captured realistic movement patterns which confirm field studies. The spatial distribution of migratory corridors and foraging hot spots was mostly constrained by features of the regional landscape, such as nesting site locations, distribution of feeding patches, and oceanic currents. These constraints also explained the mixing patterns in regional forager communities. By implementing alternative decision strategies of the turtles, we found that foraging site fidelity and nesting investment, two characteristics of green turtles' biology, are favorable strategies under unpredictable environmental conditions affecting their habitats. Based on our results, we propose specific guidelines for the regional conservation of green turtles as well as future research suggestions advancing spatial ecology of sea turtles. Being implemented in an easy to learn open‐source software, our model can coevolve with the collection and analysis of new data on energy budget and movement into a generic tool for sea turtle research and conservation. Our modeling approach could also be useful for supporting the conservation of other migratory marine animals.
    Schlagwörter connectivity ; corridors ; individual‐based model ; movement ; migration ; sea turtle
    Sprache Englisch
    Dokumenttyp Artikel
    Datenquelle Fachrepositorium Lebenswissenschaften

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  3. Konferenzbeitrag: Evaluation von Hörgeräten mittels interaktiver Kommunikation in audio-visueller virtueller Realität und Telepräsenz

    Grimm, Giso / Kothe, Angelika / Hohmann, Volker

    2024  , Seite(n) 4

    Veranstaltung/Kongress 26. Jahrestagung der Deutschen Gesellschaft für Audiologie; Aalen; Deutsche Gesellschaft für Audiologie e.V.; 2024
    Schlagwörter Medizin, Gesundheit
    Erscheinungsdatum 2024-03-05
    Verlag German Medical Science GMS Publishing House; Düsseldorf
    Dokumenttyp Konferenzbeitrag
    DOI 10.3205/24dga004
    Datenquelle German Medical Science

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  4. Buch ; Dissertation / Habilitation: Mikrosatelliteninstabilität und Mutationsanalyse in Exonbereichen der "Mismatch-repair Gene" hMLH1 und hMSH2 im familiär gehäuft vorkommenden Magenkarzinom

    Grimm, Volker

    1998  

    Verfasserangabe Volker Grimm
    Sprache Deutsch
    Umfang 103 S., Ill., graph. Darst., 21 cm
    Erscheinungsland Deutschland
    Dokumenttyp Buch ; Dissertation / Habilitation
    Dissertation / Habilitation München, Techn. Univ., Diss., 1998
    HBZ-ID HT013163950
    Datenquelle Katalog ZB MED Medizin, Gesundheit

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  5. Buch ; Online ; Dissertation / Habilitation: Advancing individual-based models of Antarctic krill (Euphausia superba, Dana 1850)

    Bahlburg, Dominik [Verfasser] / Berger, Uta [Gutachter] / Grimm, Volker [Gutachter] / Jørgensen, Christian [Gutachter]

    2024  

    Verfasserangabe Dominik Bahlburg ; Gutachter: Uta Berger, Volker Grimm, Christian Jørgensen
    Schlagwörter Biowissenschaften, Biologie ; Life Science, Biology
    Thema/Rubrik (Code) sg570
    Sprache Englisch
    Verlag Technische Universität Dresden
    Erscheinungsort Dresden
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

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  6. Konferenzbeitrag: Distributed interactive low-delay virtual reality for music and research applications

    Grimm, Giso / Kothe, Angelika / Hohmann, Volker

    2023  , Seite(n) 15

    Veranstaltung/Kongress 25. Jahrestagung der Deutschen Gesellschaft für Audiologie; Köln; Deutsche Gesellschaft für Audiologie e.V.; 2023
    Schlagwörter Medizin, Gesundheit
    Erscheinungsdatum 2023-03-01
    Verlag German Medical Science GMS Publishing House; Düsseldorf
    Dokumenttyp Konferenzbeitrag
    DOI 10.3205/23dga015
    Datenquelle German Medical Science

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  7. Konferenzbeitrag: Influence of natural head movements on communication behaviour in virtual multi-talker conversations

    Kothe, Angelika / Hohmann, Volker / Grimm, Giso

    2023  , Seite(n) 14

    Veranstaltung/Kongress 25. Jahrestagung der Deutschen Gesellschaft für Audiologie; Köln; Deutsche Gesellschaft für Audiologie e.V.; 2023
    Schlagwörter Medizin, Gesundheit
    Erscheinungsdatum 2023-03-01
    Verlag German Medical Science GMS Publishing House; Düsseldorf
    Dokumenttyp Konferenzbeitrag
    DOI 10.3205/23dga014
    Datenquelle German Medical Science

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  8. Artikel: Editorial: thematic series "Integrating movement ecology with biodiversity research".

    Jeltsch, Florian / Grimm, Volker

    Movement ecology

    2020  Band 8, Seite(n) 19

    Sprache Englisch
    Erscheinungsdatum 2020-05-25
    Erscheinungsland England
    Dokumenttyp Editorial
    ZDB-ID 2724975-X
    ISSN 2051-3933
    ISSN 2051-3933
    DOI 10.1186/s40462-020-00210-0
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel: It's about time: Feeding competition costs of sociality are affected more by temporal characteristics than spatial distribution.

    Ekanayake-Weber, Marcy / Mathew, Namita / Cunha, Deanna / Payen, Nathanael / Grimm, Volker / Koenig, Andreas

    Ecology and evolution

    2024  Band 14, Heft 4, Seite(n) e11209

    Abstract: For most herbivorous animals, group-living appears to incur a high cost by intensifying feeding competition. These costs raise the question of how gregariousness (i.e., the tendency to aggregate) could have evolved to such an extent in taxa such as ... ...

    Abstract For most herbivorous animals, group-living appears to incur a high cost by intensifying feeding competition. These costs raise the question of how gregariousness (i.e., the tendency to aggregate) could have evolved to such an extent in taxa such as anthropoid primates and ungulates. When attempting to test the potential benefits and costs, previous foraging models demonstrated that group-living might be beneficial by lowering variance in intake, but that it reduces overall foraging success. However, these models did not fully account for the fact that gregariousness has multiple experiences and can vary in relation to ecological variables and foraging competition. Here, we present an agent-based model for testing how ecological variables impact the costs and benefits of gregariousness. In our simulations, primate-like agents forage on a variable resource landscape while maintaining spatial cohesion with conspecifics to varying degrees. The agents' energy intake rate, daily distance traveled, and variance in energy intake were recorded. Using Morris Elementary Effects sensitivity analysis, we tested the sensitivity of 10 model parameters, of which 2 controlled gregarious behavior and 8 controlled food resources, including multiple aspects of temporal and spatial heterogeneity. We found that, while gregariousness generally increased feeding competition, the costs of gregariousness were much lower when resources were less variable over time (i.e., when calorie extraction was slow and resource renewal was frequent). We also found that maintaining proximity to other agents resulted in lower variance in energy intake when resources were more variable over time. Thus, it appears that the costs and benefits of gregariousness are strongly influenced by the temporal characteristics of food resources, giving insight into the pressures that shaped the evolution of sociality and group living, including in our own lineage.
    Sprache Englisch
    Erscheinungsdatum 2024-04-16
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2635675-2
    ISSN 2045-7758
    ISSN 2045-7758
    DOI 10.1002/ece3.11209
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Buch: Individual based modeling and ecology

    Grimm, Volker / Railsback, Steven F.

    (Princeton series in theoretical and computational biology)

    2005  

    Titelvarianten Individual-based modeling and ecology
    Verfasserangabe Volker Grimm ; Steven F. Railsback
    Serientitel Princeton series in theoretical and computational biology
    Schlagwörter Population biology/Mathematical models ; Biotic communities/Mathematical models ; Populationsbiologie ; Mathematisches Modell ; Ökologie
    Schlagwörter Umweltbiologie ; Ecology
    Thema/Rubrik (Code) 577.015118
    Sprache Englisch
    Umfang XVI, 428 S. : Ill., graph. Darst.
    Verlag Princeton Univ. Press
    Erscheinungsort Princeton, N.J. u.a.
    Erscheinungsland Vereinigte Staaten
    Dokumenttyp Buch
    Anmerkung Teilw. als Printed-on-demand-Ausg. mit neuerem Erscheinungsjahr
    HBZ-ID HT014483869
    ISBN 0-691-09665-1 ; 0-691-09666-X ; 978-0-691-09665-0 ; 978-0-691-09666-7
    Datenquelle Katalog ZB MED Ernährung, Umwelt, Agrar

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