EEP’s research elucidates the extent to which eco-evolutionary dynamics may aggravate the global biodiversity crisis and helps to identify mitigating mechanisms that show promise. An important theme for the program in 2015 was how animal movement and plant dispersal influence eco-evolutionary dynamics and, more broadly, the maintenance of biodiversity.
Figure 1. According to the spatial insurance hypothesis, biodiversity in spatially distributed ecological communities is protected by dispersal, peaking at intermediate dispersal rates (black curve). New research reveals how this effect is eroded when dispersal rates become more and more spatially heterogeneous (transition from black to blue, red, purple, brown, and orange curves) [1].
References
[1] Shanafelt DW, Dieckmann U, Jonas M, Franklin O, Loreau M & Perrings C (2015). Biodiversity, productivity, and the spatial insurance hypothesis revisited. Journal of Theoretical Biology 380: 426–435
[2] Fronhofer EA, Poethke HJ & Dieckmann U (2015). Evolution of dispersal distance: Maternal investment leads to bimodal dispersal kernels. Journal of Theoretical Biology 365: 270–279.
[3] de Barros AE, Landi P, Hui C, Brännström Å & Dieckmann U. Individual-based movement models as a tool to assess statistical estimation methods applied to animal movements, in preparation.
[4] Nonaka E, Svanbäck R, Thibert-Plante X, Englund G & Brännström Å (2015). Mechanisms by which phenotypic plasticity affects adaptive divergence and ecological speciation. American Naturalist 186: E126.
[5] Sjödin H, Brännström Å & Englund G (2015). Space-race functional responses. Proceedings of the Royal Society B 282: 20142121.
[6] Zhang L, Andersen KH, Dieckmann U & Brännström Å (2015). Four types of interference competition and their impacts on the ecology and evolution of size-structured populations and communities. Journal of Theoretical Biology 380: 280–290.
[7] Mazzucco R, Van Nguyen T, Kim DH, Chon TS & Dieckmann U (2015). Adaptation of aquatic insects to the current flow in streams. Ecological Modelling 309–310: 143–152.
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Principal Research Scholar Exploratory Modeling of Human-natural Systems Research Group - Advancing Systems Analysis Program
Principal Research Scholar Systemic Risk and Resilience Research Group - Advancing Systems Analysis Program
Principal Research Scholar Cooperation and Transformative Governance Research Group - Advancing Systems Analysis Program
Research program
International Institute for Applied Systems Analysis (IIASA)
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