Kristina Wicke
Assistant Professor, Mathematical Sciences
507 Cullimore Hall (CULM)
About Me
I obtained B.Sc., M.Sc., and Ph.D. degrees in Biomathematics from the University of Greifswald in Germany. I then was a President's Postdoctoral Scholar at The Ohio State University, before joining NJIT in 2022.
Education
Ph.D.
; University of Greifswald
; Biomathematics
; 2020
M.S. ; University of Greifswald ; Biomathematics ; 2016
B.S. ; University of Greifswald ; Biomathematics ; 2015
M.S. ; University of Greifswald ; Biomathematics ; 2016
B.S. ; University of Greifswald ; Biomathematics ; 2015
Office Hours
M 2-4 pm
2026 Spring Courses
MATH 792B - PRE DOCTORAL RESEARCH
MATH 112 - CALCULUS II
MATH 112 - CALCULUS II
Teaching Interests
Probability, Discrete Mathematics, Discrete Models in Biology, Calculus
Past Courses
MATH 111: CALCULUS I
MATH 112: CALCULUS II
MATH 244: INTRODUCTION TO PROBABILITY THEORY
MATH 345: MULTIVARIATE DISTRIBUTIONS
MATH 707: ST: INTRODUCTION TO GRAPH THEORY
MATH 112: CALCULUS II
MATH 244: INTRODUCTION TO PROBABILITY THEORY
MATH 345: MULTIVARIATE DISTRIBUTIONS
MATH 707: ST: INTRODUCTION TO GRAPH THEORY
Research Interests
Mathematical Phylogenetics, Graph Theory, Combinatorics
Journal Article
Simone Linz, Kristina Wicke.
2026. "What Is... Phylogenetics?."
Notices of the American Mathematical Society , vol. 73 , no. 2 , pp. 140-143.
Ann Clifton, Éva Czabarka, Kevin Liu, Sarah Loeb, Utku Okur, László Székely, Kristina Wicke. 2026. "Reconstruction of caterpillar tanglegrams." Discrete Applied Mathematics , vol. 378 , pp. 647-661.
Niels Holtgrefe, Elizabeth S. Allman, Hector Baños, Leo van Iersel, Vincent Moulton, John A. Rhodes, Kristina Wicke. 2025. "Distinguishing Phylogenetic Level-2 Networks with Quartets and Inter-Taxon Quartet Distances." Bulletin of Mathematical Biology , vol. 87 , no. 12 , pp. 35 pages.
Mareike Fischer, Tom Niklas Hamann, Kristina Wicke. 2025. "Metaconcepts of Rooted Tree Balance." Bulletin of Mathematical Biology , vol. 87 , no. 9 , pp. 56 pages.
Elizabeth S Allman, Hector Banos, John A Rhodes, Kristina Wicke. 2025. "NANUQ+: A divide-and-conquer approach to network estimation." Algorithms for Molecular Biology , vol. 20 , no. 1 , pp. 25 pages.
Ann Clifton, Éva Czabarka, Kevin Liu, Sarah Loeb, Utku Okur, László Székely, Kristina Wicke. 2026. "Reconstruction of caterpillar tanglegrams." Discrete Applied Mathematics , vol. 378 , pp. 647-661.
Niels Holtgrefe, Elizabeth S. Allman, Hector Baños, Leo van Iersel, Vincent Moulton, John A. Rhodes, Kristina Wicke. 2025. "Distinguishing Phylogenetic Level-2 Networks with Quartets and Inter-Taxon Quartet Distances." Bulletin of Mathematical Biology , vol. 87 , no. 12 , pp. 35 pages.
Mareike Fischer, Tom Niklas Hamann, Kristina Wicke. 2025. "Metaconcepts of Rooted Tree Balance." Bulletin of Mathematical Biology , vol. 87 , no. 9 , pp. 56 pages.
Elizabeth S Allman, Hector Banos, John A Rhodes, Kristina Wicke. 2025. "NANUQ+: A divide-and-conquer approach to network estimation." Algorithms for Molecular Biology , vol. 20 , no. 1 , pp. 25 pages.
SHOW MORE
Sophie J. Kersting, Kristina Wicke, Mareike Fischer.
2025. "Tree balance in phylogenetic models."
Philosophical Transactions of the Royal Society B: Biological Sciences , vol. 380 , no. 1919 , pp. 15 pages.
Ann Clifton, Éva Czabarka, Audace A.V. Dossou-Olory, Kevin Liu, Sarah Loeb, Utku Okur, László Székely, Kristina Wicke. 2025. "Decks of rooted binary trees." European Journal of Combinatorics , vol. 124 , pp. 21 pages.
Linda Knüver, Mareike Fischer, Marc Hellmuth, Kristina Wicke. 2024. "The weighted total cophenetic index: A novel balance index for phylogenetic networks." Discrete Applied Mathematics , vol. 359 , pp. 89-142.
Janosch Döcker, Simone Linz, Kristina Wicke. 2024. "Bounding the Softwired Parsimony Score of a Phylogenetic Network." Bulletin of Mathematical Biology , vol. 86 , no. 10 , pp. 28 pages.
Vincent Moulton, Andreas Spillner, Kristina Wicke. 2024. "Phylogenetic diversity indices from an affine and projective viewpoint." Bulletin of Mathematical Biology , vol. 86 , no. 8 , pp. 31 pages.
Bryan Currie, Kristina Wicke. 2024. "On the maximum value of the stairs2 index." Advances in Applied Mathematics , vol. 159 , pp. 17 pages.
Kristina Wicke, Md. Rejuan Haque, Laura Kubatko. 2024. "Implications of gene tree heterogeneity on downstream phylogenetic analyses: A case study employing the Fair Proportion index." PLOS ONE , vol. 19 , no. 4 , pp. 12 pages.
Simone Linz, Kristina Wicke. 2023. "Exploring spaces of semi-directed level-1 networks." Journal of Mathematical Biology , vol. 87 , no. 5 , pp. 30 pages.
Mareike Fischer, Tom Niklas Hamann, Kristina Wicke. 2023. "How far is my network from being edge-based? Proximity measures for edge-basedness of unrooted phylogenetic networks." Discrete Applied Mathematics , vol. 337 , pp. 303-320.
Mareike Fischer, Andrew Francis, Kristina Wicke. 2023. "Phylogenetic Diversity Rankings in the Face of Extinctions: The Robustness of the Fair Proportion Index." Systematic Biology , vol. 72 , no. 3 , pp. 606-615.
Kristina Wicke, Mareike Fischer, Laura Kubatko. 2023. "Effects of discordance between species and gene trees on phylogenetic diversity conservation." Journal of Mathematical Biology , vol. 86 , no. 1 , pp. 34 pages.
Magnus Bordewich, Charles Semple, Kristina Wicke. 2022. "On the complexity of optimising variants of phylogenetic diversity on phylogenetic networks." Theoretical Computer Science , vol. 917 , pp. 66-80.
Sungsik Kong, Joan Carles Pons, Laura Kubatko, Kristina Wicke. 2022. "Classes of explicit phylogenetic networks and their biological and mathematical significance." Journal of Mathematical Biology , vol. 84 , no. 6 , pp. 44 pages.
Mareike Fischer, Michelle Galla, Kristina Wicke. 2022. "Non-binary universal tree-based networks." Journal of Graph Algorithms and Applications , vol. 26 , no. 1 , pp. 81-90.
Magnus Bordewich, Simone Linz, Megan Owen, Katherine St John, Charles Semple, Kristina Wicke. 2022. "On the Maximum Agreement Subtree Conjecture for Balanced Trees." SIAM Journal on Discrete Mathematics , vol. 36 , no. 1 , pp. 336-354.
Mareike Fischer, Lina Herbst, Michelle Galla, Yangjing Long, Kristina Wicke. 2021. "Correction to: Classes of tree-based networks." Visual Computing for Industry, Biomedicine, and Art , vol. 4 , no. 1 .
Remco Bouckaert, Mareike Fischer, Kristina Wicke. 2021. "Combinatorial perspectives on Dollo-k characters in phylogenetics." Advances in Applied Mathematics , vol. 131 , pp. 39 pages.
Mareike Fischer, Lina Herbst, Michelle Galla, Yangjing Long, Kristina Wicke. 2021. "Unrooted non-binary tree-based phylogenetic networks." Discrete Applied Mathematics , vol. 294 , pp. 10-30.
Kristina Wicke, Arne Mooers, Mike Steel. 2021. "Formal Links between Feature Diversity and Phylogenetic Diversity." Systematic Biology , vol. 70 , no. 3 , pp. 480-490.
Mareike Fischer, Michelle Galla, Lina Herbst, Yangjing Long, Kristina Wicke. 2020. "Classes of tree-based networks." Visual Computing for Industry, Biomedicine, and Art , vol. 3 , no. 1 , pp. 26 pages.
Kristina Wicke, Mareike Fischer. 2020. "Combinatorial views on persistent characters in phylogenetics." Advances in Applied Mathematics , vol. 119 , pp. 43 pages.
Tomás M Coronado, Mareike Fischer, Lina Herbst, Francesc Rosselló, Kristina Wicke. 2020. "On the minimum value of the Colless index and the bifurcating trees that achieve it." Journal of Mathematical Biology , vol. 80 , no. 7 , pp. 1993-2054.
Kristina Wicke, Mike Steel. 2020. "Combinatorial properties of phylogenetic diversity indices." Journal of Mathematical Biology , vol. 80 , no. 3 , pp. 687–715 .
Michelle Galla, Kristina Wicke, Mareike Fischer. 2019. "Statistical Inconsistency of Maximum Parsimony for k-Tuple-Site Data." Bulletin of Mathematical Biology , vol. 81 , no. 4 , pp. 1173-1200.
Kristina Wicke, Mareike Fischer. 2019. "On the Shapley Value of Unrooted Phylogenetic Trees." Bulletin of Mathematical Biology , vol. 81 , no. 2 , pp. 618-638.
Kristina Wicke, Mareike Fischer. 2018. "Phylogenetic diversity and biodiversity indices on phylogenetic networks." Mathematical Biosciences , vol. 298 , pp. 80-90.
Martin Unterseher, Samantha C Karunarathna, García Roberto Cruz, Nikki H Dagamac, Mathilde B Dahl, Serena E Dool, Michelle Galla, Lina Herbst, R Henrik Nilsson, Sébastien J. Puechmaille, Caroline Schöner, Michael Schöner, Abu B Siddique, Annette Teltewskoi, Kristina Wicke, David G Würth, Christian Wurzbacher, Kevin D Hyde. 2018. "Mycobiomes of sympatric Amorphophallus albispathus (Araceae) and Camellia sinensis (Theaceae) – a case study reveals clear tissue preferences and differences in diversity and composition." Mycological Progress , vol. 17 , no. 4 , pp. 489-500.
Kristina Wicke, Mareike Fischer. 2017. "Comparing the rankings obtained from two biodiversity indices: the Fair Proportion Index and the Shapley Value." Journal of Theoretical Biology , vol. 430 , pp. 207-214.
Ann Clifton, Éva Czabarka, Audace A.V. Dossou-Olory, Kevin Liu, Sarah Loeb, Utku Okur, László Székely, Kristina Wicke. 2025. "Decks of rooted binary trees." European Journal of Combinatorics , vol. 124 , pp. 21 pages.
Linda Knüver, Mareike Fischer, Marc Hellmuth, Kristina Wicke. 2024. "The weighted total cophenetic index: A novel balance index for phylogenetic networks." Discrete Applied Mathematics , vol. 359 , pp. 89-142.
Janosch Döcker, Simone Linz, Kristina Wicke. 2024. "Bounding the Softwired Parsimony Score of a Phylogenetic Network." Bulletin of Mathematical Biology , vol. 86 , no. 10 , pp. 28 pages.
Vincent Moulton, Andreas Spillner, Kristina Wicke. 2024. "Phylogenetic diversity indices from an affine and projective viewpoint." Bulletin of Mathematical Biology , vol. 86 , no. 8 , pp. 31 pages.
Bryan Currie, Kristina Wicke. 2024. "On the maximum value of the stairs2 index." Advances in Applied Mathematics , vol. 159 , pp. 17 pages.
Kristina Wicke, Md. Rejuan Haque, Laura Kubatko. 2024. "Implications of gene tree heterogeneity on downstream phylogenetic analyses: A case study employing the Fair Proportion index." PLOS ONE , vol. 19 , no. 4 , pp. 12 pages.
Simone Linz, Kristina Wicke. 2023. "Exploring spaces of semi-directed level-1 networks." Journal of Mathematical Biology , vol. 87 , no. 5 , pp. 30 pages.
Mareike Fischer, Tom Niklas Hamann, Kristina Wicke. 2023. "How far is my network from being edge-based? Proximity measures for edge-basedness of unrooted phylogenetic networks." Discrete Applied Mathematics , vol. 337 , pp. 303-320.
Mareike Fischer, Andrew Francis, Kristina Wicke. 2023. "Phylogenetic Diversity Rankings in the Face of Extinctions: The Robustness of the Fair Proportion Index." Systematic Biology , vol. 72 , no. 3 , pp. 606-615.
Kristina Wicke, Mareike Fischer, Laura Kubatko. 2023. "Effects of discordance between species and gene trees on phylogenetic diversity conservation." Journal of Mathematical Biology , vol. 86 , no. 1 , pp. 34 pages.
Magnus Bordewich, Charles Semple, Kristina Wicke. 2022. "On the complexity of optimising variants of phylogenetic diversity on phylogenetic networks." Theoretical Computer Science , vol. 917 , pp. 66-80.
Sungsik Kong, Joan Carles Pons, Laura Kubatko, Kristina Wicke. 2022. "Classes of explicit phylogenetic networks and their biological and mathematical significance." Journal of Mathematical Biology , vol. 84 , no. 6 , pp. 44 pages.
Mareike Fischer, Michelle Galla, Kristina Wicke. 2022. "Non-binary universal tree-based networks." Journal of Graph Algorithms and Applications , vol. 26 , no. 1 , pp. 81-90.
Magnus Bordewich, Simone Linz, Megan Owen, Katherine St John, Charles Semple, Kristina Wicke. 2022. "On the Maximum Agreement Subtree Conjecture for Balanced Trees." SIAM Journal on Discrete Mathematics , vol. 36 , no. 1 , pp. 336-354.
Mareike Fischer, Lina Herbst, Michelle Galla, Yangjing Long, Kristina Wicke. 2021. "Correction to: Classes of tree-based networks." Visual Computing for Industry, Biomedicine, and Art , vol. 4 , no. 1 .
Remco Bouckaert, Mareike Fischer, Kristina Wicke. 2021. "Combinatorial perspectives on Dollo-k characters in phylogenetics." Advances in Applied Mathematics , vol. 131 , pp. 39 pages.
Mareike Fischer, Lina Herbst, Michelle Galla, Yangjing Long, Kristina Wicke. 2021. "Unrooted non-binary tree-based phylogenetic networks." Discrete Applied Mathematics , vol. 294 , pp. 10-30.
Kristina Wicke, Arne Mooers, Mike Steel. 2021. "Formal Links between Feature Diversity and Phylogenetic Diversity." Systematic Biology , vol. 70 , no. 3 , pp. 480-490.
Mareike Fischer, Michelle Galla, Lina Herbst, Yangjing Long, Kristina Wicke. 2020. "Classes of tree-based networks." Visual Computing for Industry, Biomedicine, and Art , vol. 3 , no. 1 , pp. 26 pages.
Kristina Wicke, Mareike Fischer. 2020. "Combinatorial views on persistent characters in phylogenetics." Advances in Applied Mathematics , vol. 119 , pp. 43 pages.
Tomás M Coronado, Mareike Fischer, Lina Herbst, Francesc Rosselló, Kristina Wicke. 2020. "On the minimum value of the Colless index and the bifurcating trees that achieve it." Journal of Mathematical Biology , vol. 80 , no. 7 , pp. 1993-2054.
Kristina Wicke, Mike Steel. 2020. "Combinatorial properties of phylogenetic diversity indices." Journal of Mathematical Biology , vol. 80 , no. 3 , pp. 687–715 .
Michelle Galla, Kristina Wicke, Mareike Fischer. 2019. "Statistical Inconsistency of Maximum Parsimony for k-Tuple-Site Data." Bulletin of Mathematical Biology , vol. 81 , no. 4 , pp. 1173-1200.
Kristina Wicke, Mareike Fischer. 2019. "On the Shapley Value of Unrooted Phylogenetic Trees." Bulletin of Mathematical Biology , vol. 81 , no. 2 , pp. 618-638.
Kristina Wicke, Mareike Fischer. 2018. "Phylogenetic diversity and biodiversity indices on phylogenetic networks." Mathematical Biosciences , vol. 298 , pp. 80-90.
Martin Unterseher, Samantha C Karunarathna, García Roberto Cruz, Nikki H Dagamac, Mathilde B Dahl, Serena E Dool, Michelle Galla, Lina Herbst, R Henrik Nilsson, Sébastien J. Puechmaille, Caroline Schöner, Michael Schöner, Abu B Siddique, Annette Teltewskoi, Kristina Wicke, David G Würth, Christian Wurzbacher, Kevin D Hyde. 2018. "Mycobiomes of sympatric Amorphophallus albispathus (Araceae) and Camellia sinensis (Theaceae) – a case study reveals clear tissue preferences and differences in diversity and composition." Mycological Progress , vol. 17 , no. 4 , pp. 489-500.
Kristina Wicke, Mareike Fischer. 2017. "Comparing the rankings obtained from two biodiversity indices: the Fair Proportion Index and the Shapley Value." Journal of Theoretical Biology , vol. 430 , pp. 207-214.
COLLAPSE
Software
"poweRbal: Phylogenetic Tree Models and the Power of Tree Shape Statistics"
The R Foundation, June, 2024.
"treebalance: Computation of Tree (Im)Balance Indices"
The R Foundation, September, 2021.
"MSCquartets: Analyzing Gene Tree Quartets under the Multi-Species Coalescent"
The R Foundation, December, 2019.
The R Foundation, June, 2024.
"treebalance: Computation of Tree (Im)Balance Indices"
The R Foundation, September, 2021.
"MSCquartets: Analyzing Gene Tree Quartets under the Multi-Species Coalescent"
The R Foundation, December, 2019.
Book
Mareike Fischer, Lina Herbst, Sophie Kersting, Luise Kühn, Kristina Wicke.
"Tree Balance Indices - A Comprehensive Survey."
404 pp. Springer Nature Switzerland AG, 2023. ISBN 978-3-031-39799-8.
Professional
Systematic Biology
Editor, Associate Editor , 2024
Editor, Associate Editor , 2024