Thijs Janzen 


27/05/2019 / by thijsjanzen



Janzen, T., Diaz, F. Individual‐based simulations of genome evolution with ancestry: The GenomeAdmixR R package. Methods Ecol Evol. 2021; 00: 1– 12.‐210X.13612

Janzen, T., Zotz, G. and Etienne, R.S. (2020), Community structure of vascular epiphytes: a neutral perspective. Oikos. doi:10.1111/oik.06537


Zhang, Z. Bendixsen, Devin P., Janzen, T., Nolte, A.W., Greig, D., Stelkens, R. (2019) Recombining your way out of trouble: the genetic architecture of hybrid fitness under environmental stress. Molecular Biology and Evolution. msz211.

Lavretsky, P., Janzen, T. & McCracken, K.G. (2019) Identifying hybrids & the genomics of hybridization: Mallards & American black ducks of Eastern North America. Ecology and Evolution; 9: 3470 – 3490 PDF

Alzate, A., Janzen, T., Bonte, D., Rosindell, J., & Etienne, R.S. (2019) A simple spatially explicit neutral model explains the range size distribution of reef fishes. Global Ecology and Biogeography; 00: 1– 16 PDF


Janzen, T., Nolte, A.W. & Traulsen, A.(2018) The breakdown of genomic ancestry blocks in hybrid lineages given a finite number of recombination sites” Evolution, 72: 735-750. PDF

Boynton, P. J., Janzen, T., & Greig, D. (2018) “Modeling the contributions of chromosome segregation errors and aneuploidy to Saccharomyces hybrid sterility.” Yeast  35: 85–98. PDF


Janzen, T., Alzate, A., Muschick, M., Maan, M.E., van der Plas, F. &. Etienne, R.S. (2017) Community assembly in Lake Tanganyika cichlid fish: quantifying the contributions of both niche-based and neutral processes. Ecology and Evolution. 7. 1057-1067 PDF


Janzen, T., Haegeman, B. & Etienne, R.S. (2015) A sampling formula for ecological communities with multiple dispersal syndromes. Journal of Theoretical Biology. 374, 94-106.  PDF

Ruifrok, J.L., Janzen, T., Kuijper, D.P.J., Rietkerk, M., Olff, H. & Smit, C. (2015) Cyclical succession in grazed ecosystems: the importance of interactions between different-sized herbivores and different-sized predators. Theoretical Population Biology. 101, 31-39 PDF

Janzen, T., Höhna, S. & Etienne, R.S. (2015) Approximate Bayesian Computation of diversification rates from molecular phylogenies: introducing a new efficient summary statistic, the nLTT Methods in Ecology and Evolution 6 (5), 566-575.  PDF

Van der Plas, F., Janzen, T., Ordonez, A., Fokkema, W., Reinders, J., Etienne, R.S. & Olff, H. (2015) A new modeling approach quantifies the relative importance of different community assembly processes. Ecology 96 (6) 1502-1515  PDF


Etienne, R. S., de Visser, S. N., Janzen, T., Olsen, J. L., Olff, H., & Rosindell, J. (2012). Can clade age alone explain the relationship between body size and diversity? Interface Focus, 2(2), 170-179. PDF


In preparation
Janzen, T., Miro Pina, V., (2020) Estimating the time since admixture from phased and unphased molecular data

Janzen, T., Bokma, F., Etienne, R.S. (2020) Nucleotide substitutions during speciation may explain substitution rate variation. Janzen, T. & Etienne, R.S. (2018) Inferring the role of habitat dynamics in driving diversification: evidence for a species pump in Lake Tanganyika cichlids bioRxiv 085431



GenomeAdmixR package for R, individual based simulations of genome evolution and ancestry, GitHub

junctions package for R (2018), Individual based simulations of hybridizing populations, where the accumulation of junctions is tracked. Furthermore, mathematical equations are provided to verify simulation outcomes. CRAN, GitHub

STEPCAM package for R (2014), implementation of Stepwise Community Assembly Models (STEPCAM), CRAN, GitHub 

nLTT package for R (2015), Calculates the normalized Lineage-Through-Time Statistic, given two phylogenetic trees. CRAN, GitHub

GUILDS package for R (2014), Implementation of sampling formulas for the unified neutral model of biodiversity and biogeography, with or without guild structure. CRAN, GitHub

The Neutralizer (2014), Software tool for teaching the Unified Neutral Theory of Biodiversity and Biogeography. GitHub


In development
ROBIN software package in python, bioinformatics package to ROBustly INfer admixture time after hybridization, GitHub

enviDiv package for R, diversification simulations to infer the influence of environmentally induced diversification. GitHub

nodeSub package for R, simulations of substitutions along the nodes of a phylogeny. GitHub


Janzen, T. Success with Tropheus, Aquarium Hobbyist Magazine, link

Janzen, T. Een bezoek aan het Tanganyikameer (2014), Cichlidae, tweemaandelijkse periodiek van de Nederlandse Cichliden Vereniging 40(1) 11-17