Publications
A complete and up-to-date list is also available on my Google Scholar profile.
G. I. Hagstrom, C. A. Stock, J. Y. Luo, and S. A. Levin. Impact of dynamic phytoplankton stoichiometry on global scale patterns of nutrient limitation, nitrogen fixation, and carbon export. Global Biogeochemical Cycles, 38(5):e2023GB007991, 2024. doi:10.1029/2023GB007991
M. R. Sullivan, F. W. Primeau, G. I. Hagstrom, W. L. Wang, and A. C. Martiny. Integrating trait-based stoichiometry in a biogeochemical inverse model reveals links between phytoplankton physiology and global carbon export. Global Biogeochemical Cycles, 38(3):e2023GB007986, 2024. doi:10.1029/2023GB007986
A. A. Larkin, G. I. Hagstrom, M. L. Brock, N. S. Garcia, and A. C. Martiny. Basin-scale biogeography of Prochlorococcus and SAR11 ecotype replication. The ISME Journal, 17(2):185–194, 2023. doi:10.1038/s41396-022-01332-6
G. I. Hagstrom and S. A. Levin. Phase transitions and the theory of early warning indicators for critical transitions. In How Worlds Collapse, pages 358–374. Routledge, 2023. doi:10.4324/9781003331384-23
A. C. Martiny, G. I. Hagstrom, T. DeVries, R. T. Letscher, G. L. Britten, C. A. Garcia, E. Galbraith, D. Karl, S. A. Levin, M. W. Lomas, A. Moreno, D. Talmy, W. Wang, and K. Matsumoto. Marine phytoplankton resilience may moderate oligotrophic ecosystem responses and biogeochemical feedbacks to climate change. Limnology and Oceanography, 67(S1), 2022. doi:10.1002/lno.12029
M. Titus, G. I. Hagstrom, and J. R. Watson. Unsupervised manifold learning of collective behavior. PLoS Computational Biology, 17(2):e1007811, 2021. doi:10.1371/journal.pcbi.1007811
D. R. Brumley, F. Carrara, A. M. Hein, G. I. Hagstrom, S. A. Levin, and R. Stocker. Cutting through the noise: bacterial chemotaxis in marine microenvironments. Frontiers in Marine Science, 7:527, 2020. doi:10.3389/fmars.2020.00527
C. A. Garcia, G. I. Hagstrom, A. A. Larkin, L. J. Ustick, S. A. Levin, M. W. Lomas, and A. C. Martiny. Linking regional shifts in microbial genome adaptation with surface ocean biogeochemistry. Philosophical Transactions of the Royal Society B, 375, 2020. doi:10.1098/rstb.2019.0254
S. F. Railsback, U. Berger, J. Giske, G. I. Hagstrom, B. C. Harvey, C. Semeniuk, and G. Volker. Bridging levels from individuals to communities and ecosystems: including adaptive behavior and feedbacks in ecological theory and models. Bulletin of the Ecological Society of America, 101:e01648, 2020. doi:10.1002/bes2.1648
C. Serra-Pompei, G. I. Hagstrom, A. W. Visser, and K. H. Andersen. Resource limitation determines temperature response of unicellular plankton communities. Limnology and Oceanography, 2019. doi:10.1002/lno.11140
A. R. Moreno, G. I. Hagstrom, F. W. Primeau, S. A. Levin, and A. C. Martiny. Marine phytoplankton stoichiometry mediates nonlinear interactions between nutrient supply, temperature, and atmospheric CO2. Biogeosciences, 15(9):2761–2779, 2018. doi:10.5194/bg-15-2761-2018
G. I. Hagstrom and S. A. Levin. Marine ecosystems as complex adaptive systems: emergent patterns, critical transitions, and public goods. Ecosystems, 20(3):458–476, 2017. doi:10.1007/s10021-017-0114-3
A. M. Hein*, S. B. Rosenthal*, G. I. Hagstrom*, A. Berdahl, C. J. Torney, and I. D. Couzin. The evolution of distributed sensing and collective computation in animal populations. eLife, 4:e10955, 2015. doi:10.7554/eLife.10955
G. I. Hagstrom and E. Hameiri. Traveling waves in Hall-magnetohydrodynamics and the ion-acoustic shock structure. Physics of Plasmas, 21(2):022109, 2014. doi:10.1063/1.4862035
G. I. Hagstrom and C. R. Doering. Bounds on surface stress driven shear flow. Journal of Nonlinear Science, 24(1):185–199, 2014. doi:10.1007/s00332-013-9183-4
G. I. Hagstrom and P. J. Morrison. Continuum Hamiltonian Hopf bifurcation II. In O. Kirillov, editor, Spectral Analysis, Stability and Bifurcations in Nonlinear Physical Systems. Wiley, 2013. doi:10.1002/9781118577608.ch13
P. J. Morrison and G. I. Hagstrom. Continuum Hamiltonian Hopf bifurcation I. In O. Kirillov, editor, Spectral Analysis, Stability and Bifurcations in Nonlinear Physical Systems. Wiley, 2013. doi:10.1002/9781118577608.ch12
T. Hagstrom and G. I. Hagstrom. Grid stabilization of high-order one-sided differencing II: second-order wave equations. Journal of Computational Physics, 231(23):7907–7931, 2012. doi:10.1016/j.jcp.2012.07.033
G. I. Hagstrom and P. J. Morrison. Caldeira–Leggett model, Landau damping, and the Vlasov–Poisson system. Physica D, 240(20):1652–1660, 2011. doi:10.1016/j.physd.2011.02.007
G. I. Hagstrom and P. J. Morrison. On Krein-like theorems for noncanonical Hamiltonian systems with continuous spectra: application to Vlasov-Poisson. Transport Theory and Statistical Physics, 39(5–7):466–501, 2011. doi:10.1080/00411450.2011.566484
G. I. Hagstrom and C. R. Doering. Bounds on heat transport in Bénard-Marangoni convection. Physical Review E, 81(4):047301, 2010. doi:10.1103/PhysRevE.81.047301
T. Hagstrom and G. I. Hagstrom. Grid stabilization of high-order one-sided differencing I: first-order hyperbolic systems. Journal of Computational Physics, 223(1):316–340, 2007. doi:10.1016/j.jcp.2006.09.017
G. I. Hagstrom, D. H. Hang, C. Ofria, and E. Torng. Using AVIDA to test the effects of natural selection on phylogenetic reconstruction methods. Artificial Life, 10(2):157–166, 2004. doi:10.1162/106454604773563586