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Quantitative paleobiology and geobiology

Earth system history

Causality in dynamical systems

Higher education development

I am involved in the , a national consortium of earth science departments. I am the iEarth Education Chair at the Department of Earth Science and Leader of , which aims to develop a new framework for transforming the higher education curriculum. The educational change process is also the subject of the PhD project of .

I have developed and currently teach the following courses:

- Introduction to geobiology

- Data analysis in earth science

I am also involved in the following courses:

- Geobiology and evolution of life on Earth

- Current geobiological topics

Møller TE, Le Moine Bauer S, Hannisdal B, Zhao R, Baumberger T, Roerdink DL, Dupuis A, Thorseth IH, Pedersen RB, Jørgensen SL (2022). Mapping microbial abundance and prevalence to changing oxygen concentration in deep-sea sediments using machine learning and differential abundance. Frontiers in microbiology 13: 804575. []

Diego D, Hannisdal B, Dahle H (2021). On how the power supply shapes microbial survival. Mathematical Biosciences 338: 108615. []

Brendryen J, Haflidason H, Yokoyama Y, Haaga KA, and Hannisdal B (2020). Eurasian ice sheet collapse was a major source of Meltwater Pulse 1A 14,600 years ago. Nature Geoscience 13: 363–368. [] []

Meinicke N, Ho SL, Hannisdal B, Nürnberg D, Tripati A, Schiebel R, and Meckler AN (2020). A robust calibration of the clumped isotopes to temperature relationship for foraminifers, Geochimica et Cosmochimica Acta 270, 160-183. []

Haaga KA, Diego D, Brendryen J, Hannisdal B (2020). A simple test for causality in complex systems. [].  

Haaga KA, Diego D, and Hannisdal B (2019). Surrogate data generation using the Perron-Frobenius operator. [].

Zhao R, Hannisdal B, Mogollon JM, and Jørgensen SL (2019). Nitrifier abundance and diversity peak at deep redox transitions. Scientific Reports 9: 8633. []

Diego D, Haaga KA, and Hannisdal B (2019). Transfer entropy computation using the Perron-Frobenius operator. Physical Review E 99 (4), 042212. []

Piasecki A, Bernasconi SM, Grauel AL, Hannisdal B, Ho SL, Leutert TJ, et al. (2019). Application of Clumped Isotope Thermometry to Benthic Foraminifera. Geochemistry, Geophysics, Geosystems 20, 2082-2090. []

Haaga KA, Brendryen J, Diego D, and Hannisdal B (2018). Forcing of Late Pleistocene ice volume by spatially variable summer energy. Scientific Reports 8, 11520. [] []

Hannisdal B and Liow LH (2018). Causality from palaeontological time series. Palaeontology 61, 495-509. [] []

Dunhill AM, Hannisdal B, Brocklehurst N, and Benton MJ (2018). On formation-based sampling proxies and why they should not be used to correct the fossil record. Palaeontology 61, 119-132. [] []

Pechlivanidou S, Cowie PA, Hannisdal B, Whittaker AC, Gawthorpe RL, Pennos C, and Riiser OS (2018) Source-to-sink analysis in an active extensional setting: Holocene erosion and deposition in the Sperchios rift, central Greece. Basin Research 30, 522-543. [] []

Hannisdal B, Haaga KA, Reitan T, Diego D, and Liow LH (2017). Common species link global ecosystems to climate change: dynamical evidence in the planktonic fossil record. Proceedings of the Royal Society B 284 (1858). [] [] [] []

Dunhill AM, Hannisdal B, and Benton MJ (2014) Disentangling rock record bias and common-cause from redundancy in the British fossil record. Nature Communications 5: 4818. [] []

Gittel A, Bárta J, Kohoutová I, Mikutta R, Owens S, Gilbert J, Schnecker J, Wild B, Hannisdal B, Maerz J, Lashchinskiy N, Čapek P, Šantrůčková H, Gentsch N, Shibistova O, Guggenberger G, Richter A, Torsvik VL, Schleper C, and Urich T (2014). Distinct microbial communities associated with buried soils in the Siberian tundra. The ISME Journal 8: 841–853. []

Hannisdal B, Henderiks J, and Liow LH (2012). Long-term evolutionary and ecological responses of calcifying phytoplankton to changes in atmospheric CO₂. Global Change Biology 18, 3504–3516. [] [] []

Jorgensen SL, Hannisdal B, Lanzén A, Baumberger T, Flesland K, Fonseca R, Øvreås L, Steen IH, Thorseth IH, Pedersen RB, and Schleper C (2012). Correlating microbial community profiles with geochemical data in highly stratified sediments from the Arctic Mid-Ocean Ridge. PNAS 109 (42), E2846-E2855. [] [] []

Hannisdal B and Peters SE (2011). Phanerozoic Earth system evolution and marine biodiversity. Science 334, 1121-1124. [] [] [] []

Hannisdal B (2011). Non-parametric inference of causal interactions from geological records. American Journal of Science 311, 315-334. []

Hannisdal B (2011). Detecting common-cause relationships with directional information transfer. In A. McGowan and A.B. Smith (eds.), Comparing the Geological and Fossil Records: Implications for Biodiversity Studies. Geological Society London, Special Publications 358, 19-29. [] []

Dahle H, Hannisdal B, Steinsbu BO, Ommedal H, Einen J, Jensen S, Larsen Ø, Øvreås L, and Norland S (2011). Evolution of temperature optimum in Thermotogaceae and the prediction of trait values of uncultured organisms. Extremophiles 15, 509-516.[]

Hannisdal B and Peters SE (2010). On the relationship between macrostratigraphy and geological processes: quantitative information capture and sampling robustness. Journal of Geology 118, 111-130. []

Hannisdal B (2007). Inferring phenotypic evolution in the fossil record by Bayesian inversion. Paleobiology 33, 98-115. []

Hannisdal B (2006). Phenotypic evolution in the fossil record: numerical experiments. Journal of Geology 114, 133-153. []

Hannisdal B (2004). Clams and brachiopods: chips that pass out of sight. Palaios 19, 507-513. []

Kowalewski M, Carroll M, Casazza L, Gupta N, Hannisdal B, Hendy A, Krause Jr. RA, LaBarbera M, Lazo DG, Messina C, Puchalski S, Rothfus TA, Sälgeback J, Stempien J, Terry RC, Tomasovych A (2003). Quantitative fidelity of brachiopod-mollusk assemblages from modern subtidal environments of San Juan Islands, USA. Journal of Taphonomy 1, 43-65. []

Hannisdal B (2001). Cladistic analysis of entelophyllid rugose corals from the Silurian of northern Europe: some methodological aspects. In: Ezaki, Y (ed.), Proc. 8th Int. Symp. Fossil Cnidaria and Porifera. Bulletin of the Tohoku University Museum 1, 50-61.

See the  project pages.

See also Focus Area 1: