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afbeelding van Kees van Oers

Prof. dr. Kees van Oers

Researcher

Animal Ecology


Research themes
  • Eco-evolutionary dynamics
  • Ecological epigenetics

  • Research expertise
  • Animal personality
  • Avian genomics
  • Behaviour genetics
  • Behavioural ecology
  • Ecological epigenetics

  • Page last updated: 06-10-2020

    My research focuses on explaining the causes and consequences of variation in animal personality. I do this from an ecological and evolutionary point of view, at the crossroads between behavioural ecology and behaviour genetics. I thereby take an integrative approach combining novel developments by engaging in fruitful national and international collaborations. I base my research on the triangle - natural population - captive population – molecular laboratory, which brings me in a unique position. My goal is to find answers to fundamental and strategic questions related to individual responses to changing environments. This is relevant since the world and therefore the environment is constantly changing partly due to human influences.

    • CV
    • Groepen
    • Projecten
    • Wetenschappelijke publicaties
    • Populair-wetenschappelijke publicaties

    For more information take a look at the TABS above. For News Items: go to the van Oers Group page

    PROFESSIONAL EXPERIENCE

    2018-            professor "Animal Personality" at Behavioural Ecology Group (Wageningen University & Research)
    2011-            Senior Scientist, Dpt. Animal Ecology (NIOO-KNAW)
    2012-            Group leader, Animal Personality & Ecological Genomics group
    2009-2011    Research Scientist Dpt. Animal Ecology (NIOO-KNAW)
    2006-2009    VENI Research Associate Dpt. Animal Population Biology, NIOO-KNAW
    2004-2006    Postdoc - Max-Planck Institute for Ornithology (Seewiesen, Germany)
    2003-2004    Postdoc - Dept. Animal Population Biology, NIOO-KNAW
    1998-2003    PhD student "on the quantitative genetic background of personalities in Great Tits" (NIOO-KNAW, University of Utrecht)
    1996             MSc in Animal Ecology at University of Groningen
    1994             BSc in Ecology at Utrecht University

    OTHER TASKS

    2018 - Review pannel member Swedish Research Council 2018 - Associate Editor for Behavioral Ecology and Sociobiology
    2012 - Board member of the NVG (Netherlands Society for Behavioural Biology)
    2013 - 2016 Editor for Animal Behaviour (2013-2016)
    2011 - 2013 Consulting Editor for Animal Behaviour
    2010 - 2012 Editor for ARDEA

    EXPERTISE

    Animal Behaviour
    - All aspects of bird- and other animals behaviour.

    Animal Personality 
    - Proximate (genetics, physiology) and ultimate (natural and sexual selection) aspects explaining variation in personality
    - Conceptual issues and the link to human personality

    Ecological Genomics of Behavioural- and Life-History Traits 
    - Quantitative and molecular genetics of behaviour in natural- and controlled lab populations
    - Ecological epigenetics: songbird DNA methylation

     

    Bioinformatics Steering Group
    Read more
    Epigenetics
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    Molecular Lab Steering Group
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    Van Oers Group
    'Personality' describes the phenomenon that individuals consistently differ in their behaviour and have limited flexibility to respond to environmental...Read more

    1. Causes and Consequences of Animal Personality

    a. Evolutionary genetics of avian personality
    In this project I aim to unravel the quantitative and molecular (epi)genetic basis of avian personalities and to study genotype x environment interaction. It is largely based on selected lines for fast and slow exploratory behaviour and an F2 cross population between the lines, but it also applies association studies on long-term data from phenotyped pedigreed wild populations.

    b. The role of the social environment for animal personality 

    c. Individual differences in cognitive ability and performance

    d. Individual differences in behaviour related physiological mechanisms

    e. The fitness consequences of variation in personality

     

    2. Songbird Genomics

    a. Avian Ecological Epigenetics: DNA Methylation in great tits

    Behavioural traits have a stable and a labile component indicating both an influence of genetic and environmental effects on the expression of these traits. Methylation of cytosines in CpG contexts, particularly within CpG islands, is known to affect gene expression, and is therefore an good candidate to link these two aspects of behaviorual traits. Via whole genome, restricted reopresentation and candidate gene appraoches we unravel the influences of DNA methylation on the expression of behavioural traits in the great tit.

    with: Koen Verhoeven (Department of Terrestrial ecology, NIOO-KNAW), In collaboration with: Ole Madsen and Kyle Schachtschneider (ABG - WUR) and Martijn Derkcx (Bioinformatics) 

    b. High throughput genetics and QTL mapping in a wild passerine the great tit

    In this project we develop the genomic tools for our model system. 

    With: Prof. Dr. Martien Groenen (Animal Breeding and Genomics Center- WUR) and Prof. Dr. Marcel Visser (NIOO-KNAW)
    In collaboration with Dr. Jon Slate (Sheffield University) and Prof. Dr. Ben Sheldon (EGI, Oxford)

    3. Neurocorrelates of naturalistic behaviour using Nano microscopes

    The highly portable microscopes that are being developed by the Institute for Neuroscience (NIN-KNAW) will enable high-throughput screening and the decoding of neural correlates of naturalistic behaviour. That makes them particularly useful for the research done at the vanOers group. We are interested in how evolutionary, ecological and 'epigenetic' factors affect the behaviour of animals. But what happens to the brain circuits that underlie animal behaviour in life free-moving individuals is largely unknown. Here we will measure brain activity in certain brain regions to monitor brain activity during particular tasks.

    With: Dr. Tycho Hoogland (PI) NIN-KNAW

    see also this LINK

    Collaborative projects with Marc Naguib and Camilla Hinde at the Behavioural Ecology Group (Wageningen University & Research)

    The role of personality in animal social networks (PhD project Lysanne Snijders; 2010-2015)

    An individual’s personality has a significant influence on its fitness in interaction with the social environment. Yet very few studies focussed on how the personality of an individual interacts one on one with its social natural environment. Until now researchers were unable to simultaneously identify the personalities of individuals in the wild and quantify their pair-wise interactions. By using a state of the art tracking technology called Encounternet, we can now follow a large number of individuals continuously through both space and time, in a natural population of personality typed great tits. This enables us to study the influence of an individual’s personality on its place in a social network for many individuals in the wild simultaneously. Lysanne is supervised by Marc Naguib  (PI; Behavioural Ecology Group, Wageningen University) and co-supervised by Kees van Oers.

    How is phenotypic variation in great tits maintained by sexual selection? (PhD project Lies Zandberg; 2014-2018)

    Female choice for top quality males is expected to result in the evolution of exaggerated male secondary sexual characters. However, a strong directional preference for the ‘best’ males and their specific heritable traits would theoretically cause a fast decline in genetic variation among males. In natural populations under sexual selection however, diversity in ornaments and genes is still present. How, then, is genetic variation within populations maintained in the presence of sexual selection? This project proposes that individuals may vary in their mate preference, preferring mates with strengths that complement their own phenotype. Both male and female great tits display mutual ornaments, which are important in dominance interactions, advertisements of parental investment and sexual selection. We will perform mate choice experiments with wild great tits to test for their mate preferences.  Subsequently, in spring we will study how reproductive investment is influenced by the parents own phenotype, their previously tested mate preferences and the partner they obtained. Lies is supervised by Camilla Hinde (PI; Behavioural Ecology Group, Wageningen University) and co-supervised by Kees van Oers.

    Sexual selection in the wild: male song and female choice in great tits Parus major. (PhD project Nina Bircher; 2016-2020)

    Reproductive decisions directly affect fitness and thus have fundamental effects on evolutionary processes. Mate choice in many species is strongly determined by advertisement signals, providing information about signaller quality, motivation and personality. Yet, studies on female choice have been either correlative by linking reproductive decisions to male song traits or have been conducted in the lab. Thus, understanding the behavioural decisions underlying female choice for males has been hampered by the difficulty in tracking movements of the secluded females providing the missing link between female spatial behaviour, male song, actual female song preferences and fitness. The aim of this project thus is to fill this central gap by determining the behavioural decisions underlying female choice, i.e. by quantifying the relations between male singing and female song preference and movements and link these to personality traits and fitness-relevant genetic analyses using wild great tits (Parus major) as model. This project will apply a unique radio-tracking solution (Encounternet), combined with male song monitoring, genetic analyses, and integrated lab- and field female choice tests using wild birds. Integrating these approaches will allow us to obtain unprecedented insights into female choice and its consequences under natural conditions and thus to unravel fundamental behavioural principles in sexual selection. Nina is supervised by Marc Naguib  (PI; Behavioural Ecology Group, Wageningen University) and co-supervised by Kees van Oers, Camilla Hinde (WUR and Katharina Riebel (Leiden University).

      2020

    • Halfwerk, W., & van Oers, K. (2020). Anthropogenic noise impairs foraging for cryptic prey via cross-sensory interference. Proceedings of the Royal Society B-Biological Sciences, 287(1924), [20192951]. https://doi.org/10.1098/rspb.2019.2951
    • Culina, A., Adriaensen, F., Bailey, L. D., Burgess, M. D., Charmantier, A., Cole, E. F., Eeva, T., Matthysen, E., Nater, C. R., Sheldon, B. C., Sæther, B. E., Vriend, S. J. G., Zajkova, Z., Adamík, P., Aplin, L. M., Angulo, E., Artemyev, A., Barba, E., Barišić, S.,... Visser, M. E. (2020). Connecting the data landscape of long-term ecological studies: The SPI-Birds data hub. Journal of Animal Ecology, in press. https://doi.org/10.1111/1365-2656.13388
    • van Oers, K., Sepers, B., Sies, W., Gawehns - Bruning, F. K. K., Verhoeven, K., & Laine, V. (2020). Epigenetics of animal personality: DNA methylation cannot explain the heritability of exploratory behavior in a songbird. Integrative and Comparative Biology, in press, [icaa138]. https://doi.org/10.1093/icb/icaa138
    • Bircher, N., van Oers, K., Hinde, C. A., & Naguib, M. (2020). Extraterritorial forays by great tits are associated with dawn song in unexpected ways. Behavioral Ecology, 31(4), 873-883. https://doi.org/10.1093/beheco/araa040
    • Genzel, L., Adan, R., Berns, A., van den Beucken, J., Blokland, A., Boddeke, E. H. W. G. M., Bogers, W. M., Bontrop, R., Bulthuis, R., Bousema, T., Clevers, H., Coenen, T. C. J. J., Dam, A-M. V., Deen, P. M. T., van Dijk, K. W., Eggen, B. J. L., Elgersma, Y., Erdogan, I., Englitz, B.,... Homberg, J. R. (2020). How the COVID-19 pandemic highlights the necessity of animal research. Current Biology, 30(18), R1014-R1018. https://doi.org/10.1016/j.cub.2020.08.030
    • Zandberg, L., Hinde, C. A., & van Oers, K. (2020). Measuring mate preferences: Absolute and comparative evaluation of potential partners. Animal Behaviour, 167, 65-76. https://doi.org/10.1016/j.anbehav.2020.06.019
    • 2019

    • Sepers, B., van den Heuvel, K., Lindner, M., Viitaniemi, H., Husby, A., & van Oers, K. (2019). Avian ecological epigenetics: pitfalls and promises. Journal of Ornithology, 160(4), 1183-1203. https://doi.org/10.1007/s10336-019-01684-5
    • Laine, V. N., Verhagen, I., Mateman, A. C., Pijl, A., Williams, T. D., Gienapp, P., van Oers, K., & Visser, M. E. (2019). Exploration of tissue-specific gene expression patterns underlying timing of breeding in contrasting temperature environments in a song bird. BMC Genomics, 20(1). https://doi.org/10.1186/s12864-019-6043-0
    • Class, B., Brommer, J. E., & van Oers, K. (2019). Exploratory behavior undergoes genotype–age interactions in a wild bird. Ecology and Evolution, 9(16), 8987-8994. https://doi.org/10.1002/ece3.5430
    • Laine, V. N., Gossmann, T. I., van Oers, K., Visser, M. E., & Groenen, M. A. M. (2019). Exploring the unmapped DNA and RNA reads in a songbird genome. BMC Genomics, 20(1), [19]. https://doi.org/10.1186/s12864-018-5378-2
    • Verhagen, I., Laine, V. N., Mateman, A. C., Pijl, A., de Wit, R., van Lith, B., Kamphuis, W., Viitaniemi, H. M., Williams, T. D., Caro, S. P., Meddle, S. L., Gienapp, P., van Oers, K., & Visser, M. E. (2019). Fine-tuning of seasonal timing of breeding is regulated downstream in the underlying neuro-endocrine system in a small songbird. Journal of Experimental Biology, 222, [jeb.202481]. https://doi.org/10.1242/jeb.202481
    • Verhagen, I. C., Gienapp, P., Laine, V., van Grevenhof, E., Mateman, A. C., van Oers, K., & Visser, M. E. (2019). Genetic and phenotypic responses to genomic selection for timing of breeding in a wild songbird. Functional Ecology, 33(9), 1708-1721. https://doi.org/10.1111/1365-2435.13360
    • Caro, S. P., Cornil, C. A., van Oers, K., & Visser, M. E. (2019). Personality and gonadal development as sources of individual variation in response to GnRH challenge in female great tits. Proceedings of the Royal Society B-Biological Sciences, 286(1902), [20190142]. https://doi.org/10.1098/rspb.2019.0142
    • Smit, J. A. H., & van Oers, K. (2019). Personality types vary in their personal and social information use. Animal Behaviour, Online, 185-193. https://doi.org/10.1016/j.anbehav.2019.02.002
    • Naguib, M., Diehl, J., van Oers, K., & Snijders, L. (2019). Repeatability of signalling traits in the avian dawn chorus. Frontiers in Zoology, 16(1), [27]. https://doi.org/10.1186/s12983-019-0328-7
    • Bosse, M., Spurgin, L. G., Laine, V. N., Cole, E. F., Firth, J. A., Gienapp, P., Gosler, A. G., McMahon, K., Poissant, J., Verhagen, I., Groenen, M. A. M., van Oers, K., Sheldon, B. C., Visser, M. E., & Slate, J. (2019). Response to Perrier and Charmantier: On the importance of time scales when studying adaptive evolution. Evolution Letters, 3(3), 248-253. https://doi.org/10.1002/evl3.112
    • Viitaniemi, H., Verhagen, I. C., Visser, M. E., Honkela, A., van Oers, K., & Husby, A. (2019). Seasonal Variation in Genome-Wide DNA Methylation Patterns and the Onset of Seasonal Timing of Reproduction in Great Tits. Genome Biology and Evolution, 11(3), 970. https://doi.org/10.1093/gbe/evz044
    • Mäkinen, H., Viitaniemi, H., Visser, M. E., Verhagen, I. C., van Oers, K., & Husby, A. (2019). Temporally replicated reduced representation bisulfate sequencing data on DNA methylation patterns in great tit. Scientific data, 6, [136]. https://doi.org/10.1038/s41597-019-0136-0
    • da Silva, V. H., Laine, V. N., Bosse, M., Spurgin, L. G., Derks, M. F. L., van Oers, K., Dibbits, B., Slate, J., Crooijmans, R. P. M. A., Visser, M. E., & Groenen, M. A. M. (2019). The Genomic Complexity of a Large Inversion in Great Tits. Genome Biology and Evolution, 11(7), 1870-1881. https://doi.org/10.1093/gbe/evz106
    • Laine, V. N., Atema, E., Vlaming, P., Verhagen, I., Mateman, C., Ramakers, J. J. C., van Oers, K., Spoelstra, K., & Visser, M. E. (2019). The Genomics of Circadian Timing in a Wild Bird, the Great Tit (Parus major). Frontiers in Ecology and Evolution, 7, [e00152]. https://doi.org/10.3389/fevo.2019.00152
    • 2018

    • Kim, J-M., Santure, A. W., Barton, H. J., Quinn, J. L., Cole, E. F., Great Tit HapMap Consortium, Visser, M. E., Sheldon, B. C., Groenen, M. A. M., van Oers, K., & Slate, J. (2018). A high density SNP chip for genotyping great tit (Parus major) populations and its application to studying the genetic architecture of exploration behaviour. Molecular Ecology Resources, 18(4), 877-891. https://doi.org/10.1111/1755-0998.12778
    • da Silva, V. H., Laine, V. N., Bosse, M., Oers, K. V., Dibbits, B. W., Visser, M. E., M. A. Crooijmans, R. P., & Groenen, M. A. M. (2018). CNVs are associated with genomic architecture in a songbird. BMC Genomics, 19(2), [195]. https://doi.org/10.1186/s12864-018-4577-1
    • Dominoni, D. M., Jong, M., Bellingham, M., O'Shaughnessy, P., Oers, K., Robinson, J., Smith, B., Visser, M. E., & Helm, B. (2018). Dose-response effects of light at night on the reproductive physiology of great tits (Parus major): Integrating morphological analyses with candidate gene expression. Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, 329(8-9), 473-487. https://doi.org/10.1002/jez.2214
    • Dubuc-Messier, G., Caro, S. P., Perrier, C., van Oers, K., Réale, D., & Charmantier, A. (2018). Gene flow does not prevent personality and morphological differentiation between two blue tit populations. Journal of Evolutionary Biology, 31(8), 1127-1137. https://doi.org/10.1111/jeb.13291
    • Bengston, S., Dahan, R., Donaldson, Z., Phelps, S., van Oers, K., Sih, A., & Bell, A. (2018). Genomic tools for behavioral ecologists to understand repeatable individual differences in behavior. Nature Ecology and Evolution, 2, 944-955. https://doi.org/10.1038/s41559-017-0411-4
    • Ruuskanen, S., Groothuis, T. G. G., Baugh, A. T., Schaper, S. V., de Vries, B., & van Oers, K. (2018). Maternal egg hormones in the mating context: the effect of pair personality. Functional Ecology, 32(2), 439-449. https://doi.org/10.1111/1365-2435.12987
    • Chen, C., Biere, A., Gols, R., Halfwerk, W., van Oers, K., & Harvey, JA. (2018). Responses of insect herbivores and their food plants to wind exposure and the importance of predation risk. Journal of Animal Ecology, 87(4), 1046-1057. https://doi.org/10.1111/1365-2656.12835
    • Timm, K., van Oers, K., & Tilgar, V. (2018). SERT gene polymorphisms are associated with risk-taking behaviour and breeding parameters in wild great tits. Journal of Experimental Biology, 221, [171595]. https://doi.org/10.1242/jeb.171595
    • 2017

    • Snijders, L., Weme, L. E. N., de Goede, P., Savage, J. L., van Oers, K., & Naguib, M. (2017). Context-dependent effects of radio transmitter attachment on a small passerine. Journal of Avian Biology, 48(5), 650-659. https://doi.org/10.1111/jav.01148
    • Corcoran, P., Gossmann, T. I., Barton, H. J., The Great Tit HapMap Consortium, Slate, J., & Zeng, K. (2017). Determinants of the Efficacy of Natural Selection on Coding and Noncoding Variability in Two Passerine Species. Genome Biology and Evolution, 9(11), 2987-3007. https://doi.org/10.1093/gbe/evx213
    • Zandberg, E. C., Gort, G., van Oers, K., & Hinde, C. A. (2017). Direct fitness benefits explain mate preference, but not choice, for similarity in heterozygosity levels. Ecology Letters, 20(10), 1306-1314. https://doi.org/10.1111/ele.12827
    • Snijders, L., Naguib, M., & van Oers, K. (2017). Dominance rank and boldness predict social attraction in great tits. Behavioral Ecology, 28(2), 398-406. [arw158]. https://doi.org/10.1093/beheco/arw158
    • Gienapp, P., Laine, V., Mateman, A. C., van Oers, K., & Visser, M. E. (2017). Environment-Dependent Genotype-Phenotype Associations in Avian Breeding Time. Frontiers in Genetics. https://doi.org/10.3389/fgene.2017.00102
    • Heylen, D. J. A., Sprong, H., Krawczyk, A., Van Houtte, N., Genné, D., Gomez-Chamorro, A., van Oers, K., & Voordouw, M. J. (2017). Inefficient co-feeding transmission of Borrelia afzelii in two common European songbirds. Scientific Reports, 7, [39596]. https://doi.org/10.1038/srep39596
    • Baugh, A. T., Witonsky, K. R., Davidson, S. C., Hyder, L., Hau, M., & van Oers, K. (2017). Novelty induces behavioural and glucocorticoid responses in a songbird artificially selected for divergent personalities. Animal Behaviour, 130, 221-231. https://doi.org/10.1016/j.anbehav.2017.06.028
    • Zandberg, L., Quinn, J. L., Naguib, M., & van Oers, K. (2017). Personality-dependent differences in problem-solving performance in a social context reflect foraging strategies. Behavioural Processes, 134(January), 95-102. https://doi.org/10.1016/j.beproc.2016.09.007
    • Bosse, M., Spurgin, L. G., Laine, V. N., Cole, E. F., Firth, J. A., Gienapp, P., Gosler, A. G., McMahon, K., Poissant, J., Verhagen, I., Groenen, M. A. M., van Oers, K., Sheldon, B. C., Visser, M. E., & Slate, J. (2017). Recent natural selection causes adaptive evolution of an avian polygenic trait. Science, 358(6361), 365-368. https://doi.org/10.1126/science.aal3298
    • Baugh, A. T., Senft, R. A., Firke, M., Lauder, A., Schroeder, J., Meddle, S. L., van Oers, K., & Hau, M. (2017). Risk-averse personalities have a systemically potentiated neuroendocrine stress axis: a multilevel experiment in Parus major. Hormones and Behavior, 93(July), 99-108. https://doi.org/10.1016/j.yhbeh.2017.05.011
    • Snijders, L., van Oers, K., & Naguib, M. (2017). Sex-specific responses to territorial intrusions in a communication network: evidence from radio-tagged great tits. Ecology and Evolution, 7(3), 918-927. https://doi.org/10.1002/ece3.2686
    • Baugh, A. T., Davidson, S. C., Hau, M., & van Oers, K. (2017). Temporal dynamics of the HPA axis linked to exploratory behavior in a wild European songbird (Parus major). General and Comparative Endocrinology, 250, 104-112. https://doi.org/10.1016/j.ygcen.2017.06.011
    • Laine, V., & van Oers, K. (2017). The Quantitative and Molecular Genetics of Individual Differences in Animal Personality. In J. Vonk, A. Weiss, & S. Kuczaj [Eds.], Personality in Nonhuman Animals (pp. 55-72). Springer. https://doi.org/10.1007/978-3-319-59300-5_4
    • 2016

    • Cobben, M. M. P., & van Oers, K. (2016). Bolder Takes All and the role of epigenetics. A comment on Canestrelli et al. Letter. Trends in Ecology & Evolution, 31(7), 498-499. https://doi.org/10.1016/j.tree.2016.04.007
    • De Jong, M., Jeninga, L., Ouyang, J., van Oers, K., Spoelstra, K., & Visser, M. E. (2016). Dose-dependent responses of avian daily rhythms to artificial light at night. Physiology & Behavior, 155(1), 172-179. https://doi.org/10.1016/j.physbeh.2015.12.012
    • de Jong, B., Lens, L., Amininasab, S. M., van Oers, K., Darras, V. M., Eens, M., Pinxten, R., Komdeur, J., & Groothuis, T. G. G. (2016). Effects of experimentally sustained elevated testosterone on incubation behaviour and reproductive success in female great tits (Parus major). General and Comparative Endocrinology, 230-231, 38-47. https://doi.org/10.1016/j.ygcen.2016.02.017
    • Verhulst, E., Mateman, A. C., Zwier, M. V., Caro, S. P., Verhoeven, K. J. F., & van Oers, K. (2016). Evidence from Pyrosequencing Indicates that Natural Variation in Animal Personality is Associated with DRD4 DNA Methylation. Molecular Ecology, 25(8), 1801-1811. https://doi.org/10.1111/mec.13519
    • Laine, V., Gossmann, T. I., Schachtschneider, K. M., Garroway, C. J., Madsen, O., Verhoeven, K. J. F., de Jager, V. C. L., Megens, H-J., Warren, W. C., Minx, P., Crooijmans, R. P. M. A., Corcoran, P., The Great Tit Hapmap Consortium, Sheldon, B. C., Slate, J., Zeng, K., van Oers, K., Visser, M. E., & Groenen, M. A. M. (2016). Evolutionary signals of selection on cognition from the great tit genome and methylome. Nature Communications, 7, [10474]. https://doi.org/10.1038/ncomms10474
    • Derks, M., Schachtschneider, K. M., Madsen, O., Schijlen, E. GWM., Verhoeven, K. J. F., & van Oers, K. (2016). Gene and transposable element methylation in great tit (Parus major) brain and blood. BMC Genomics, 17, [332]. https://doi.org/10.1186/s12864-016-2653-y
    • Lemoine, M., Lucek, K., Perrier, C., Saladin, V., Adriaensen, F., Barba, E., Belda, E. J., Charmantier, A., Cichoń, M., Eeva, T., Grégoire, A., Hinde, C. A., Johnsen, A., Komdeur, J., Mänd, R., Matthysen, E., Norte, A. C., Pitala, N., Sheldon, B. C.,... Richner, H. (2016). Low but contrasting neutral genetic differentiation shaped by winter temperature in European great tits. Biological Journal of the Linnean Society, 118(3), 668-685. https://doi.org/10.1111/bij.12745
    • Naguib, M., van Rooij, E. P., Snijders, L., & van Oers, K. (2016). To sing or not to sing: seasonal changes in singing vary with personality in wild great tits. Behavioral Ecology, 27(3), 932-938. https://doi.org/10.1093/beheco/arv235
    • 2015

    • Greives, T. J., Kingma, S. A., Kranstauber, B., Mortega, K. G., Wikelski, M., van Oers, K., Mateman, A. C., Ferguson, G. A., Beltrami, G., & Hau, M. (2015). Costs of sleeping in: circadian rhythms influence cuckoldry risk in a songbird. Functional Ecology, 29(10), 1300-1307. https://doi.org/10.1111/1365-2435.12440
    • Snijders, L., van Rooij, E. P., Henskens, M. F. A., van Oers, K., & Naguib, M. (2015). Dawn song predicts behaviour during territory conflicts in personality-typed great tits. Animal Behaviour, 109(November), 45-52. https://doi.org/10.1016/j.anbehav.2015.07.037
    • van der Meer, E., & van Oers, K. (2015). Gender and personality differences in response to social stressors in great tits (Parus major). PLoS One, 10(5), [e0127984]. https://doi.org/10.1371/journal.pone.0127984
    • van Oers, K., Kohn, G. M., Hinde, C. A., & Naguib, M. (2015). Parental food provisioning is related to nestling stress response in wild great tit nestlings: implications for the development of personality. Frontiers in Zoology, 12(Supl1:S10). https://doi.org/10.1186/1742-9994-12-S1-S10
    • Santure, A. W., Poissant, J., de Cauwer, I., van Oers, K., Robinson, M. R., Quinn, J. L., Groenen, M. A. M., Visser, M. E., Sheldon, B. C., & Slate, J. (2015). Replicated analysis of the genetic architecture of quantitative traits in two wild great tit populations. Molecular Ecology, 24(24), 6148-6162. https://doi.org/10.1111/mec.13452
    • Snijders, L., van der Eijk, J., van Rooij, E. P., De Goede, P., van Oers, K., & Naguib, M. (2015). Song Trait Similarity in Great Tits Varies with Social Structure. PLoS One, 10(2), [e0116881]. https://doi.org/10.1371/journal.pone.0116881
    • 2014

    • Heylen, D., Sprong, H., Van Oers, K., Fonville, M., & Matthysen, E. (2014). Are the specialized bird ticks, Ixodes arboricola and I. frontalis, competent vectors for Borrelia burgdorferi sensu lato? Environmental Microbiology, 16(4), 1081-1089. https://doi.org/10.1111/1462-2920.12332
    • Baugh, A. T., Van Oers, K., Dingemanse, N. J., & Hau, M. (2014). Baseline and stress-induced glucocorticoid concentrations are not repeatable but covary within individual great tits (Parus major). General and Comparative Endocrinology, 208(November), 154-163. https://doi.org/10.1016/j.ygcen.2014.08.014
    • Ouyang, J., Van Oers, K., Quetting, M., & Hau, M. (2014). Becoming more like your mate: hormonal similarity reduces divorce rates in a wild songbird. Animal Behaviour, 98, 87-93. https://doi.org/10.1016/j.anbehav.2014.09.032
    • Reparaz, L. B., Van Oers, K., Naguib, M., Doutrelant, C., Visser, M. E., & Caro, S. P. (2014). Mate Preference of Female Blue Tits Varies with Experimental Photoperiod. PLoS One, 9(3), [e92527]. https://doi.org/10.1371/journal.pone.0092527
    • Van Oers, K., Santure, A. W., de Cauwer, I., Van Bers, N. E. M., Crooijmans, R. P. M. A., Sheldon, B. C., Visser, M. E., Slate, J., & Groenen, M. A. M. (2014). Replicated high-density genetic maps of two great tit populations reveal fine-scale genomic departures from sex-equal recombination rates. Heredity, 112, 307-316. https://doi.org/10.1038/hdy.2013.107
    • Snijders, L., van Rooij, E. P., Burt, J., Hinde, C. A., Van Oers, K., & Naguib, M. (2014). Social networking in territorial great tits: slow explorers have weaker social network positions. Animal Behaviour, 98, 95-102. https://doi.org/10.1016/j.anbehav.2014.09.029
    • 2013

    • Van Oers, K., & Naguib, M. (2013). Avian personality. In C. Carere, & D. Maestripieri [Eds.], Animal Personalities: Behavior, Physiology, and Evolution (pp. 66-95). The University of Chicago Press. http://press.uchicago.edu/ucp/books/book/chicago/A/bo14059603.html
    • Atema, E., Van Oers, K., & Verhulst, S. (2013). GAPDH as a control gene to estimate genome copy number in Great Tits, with cross-amplification in Blue Tits. Ardea, 101(1), 49-54. https://doi.org/10.5253/078.101.0107
    • Mueller, J. C., Korsten, P., Hermannstädter, C., Fuelner, T., Dingemanse, N. J., Matthysen, E., Van Oers, K., van Overveld, T., Patrick, S. C., Quinn, J. L., Riemenschneider, M., Tinbergen, J., & Kempenaers, B. (2013). Haplotype structure, adaptive history and associations with exploratory behaviour of the DRD4 gene region in four great tit (Parus major) populations. Molecular Ecology, 22(10), 2797-2809. https://doi.org/10.1111/mec.12282
    • Baugh, A. T., Van Oers, K., Naguib, M., & Hau, M. (2013). Initial reactivity and magnitude of the acute stress response associated with personality in wild great tits (Parus major). General and Comparative Endocrinology, 189(1 August 2013), 96-104. https://doi.org/10.1016/j.ygcen.2013.04.030
    • Naguib, M., Van Oers, K., Braakhuis, A., Griffioen, M., De Goede, P., & Waas, J. R. (2013). Noise annoys: effects of noise on breeding great tits depend on personality but not on noise characteristics. Animal Behaviour, 85(5), 949-956. https://doi.org/10.1016/j.anbehav.2013.02.015
    • Van Oers, K., & Sinn, D. L. (2013). Quantitative and molecular genetics of animal personality. In C. Carere, & D. Maestripieri [Eds.], Animal Personalities: Behavior, Physiology, and Evolution (pp. 149-200). The University of Chicago Press.
    • 2012

    • Kurvers, R. H. J. M., Nolet, B. A., Prins, H. H. T., Ydenburg, R. C., & Van Oers, K. (2012). Boldness affects foraging decisions in barnacle geese: an experimental approach. Behavioral Ecology, 23(6), 1155-1161. https://doi.org/10.1093/beheco/ars091
    • Baugh, A. T., Schaper, S. V., Hau, M., Cockrem, J. F., De Goede, P., & Van Oers, K. (2012). Corticosterone responses differ between lines of great tits (Parus major) selected for divergent personalities. General and Comparative Endocrinology, 175(3), 488-494. https://doi.org/10.1016/j.ygcen.2011.12.012
    • Titulaer, M., Van Oers, K., & Naguib, M. (2012). Personality affects learning performance in difficult tasks in a sex-dependent way. Animal Behaviour, 83(3), 723-730. https://doi.org/10.1016/j.anbehav.2011.12.020
    • Ritschard, M., Van Oers, K., Naguib, M., & Brumm, H. (2012). Song amplitude of rival males modulates the territorial behaviour of great tits during the fertile period of their mates. Ethology, 118(2), 197-202. https://doi.org/10.1111/j.1439-0310.2011.01999.x
    • Van Bers, N. E. M., Santure, A. W., Van Oers, K., de Cauwer, I., Dibbits, B. W., Mateman, A. C., Crooijmans, R. P. M. A., Sheldon, B. C., Visser, M. E., Groenen, M. A. M., & Slate, J. (2012). The design and cross-population application of a genome-wide SNP chip for the great tit Parus major. Molecular Ecology Resources, 12(4), 753-770. https://doi.org/10.1111/j.1755-0998.2012.03141.x
    • Schut, E., Magrath, M. J. L., Van Oers, K., & Komdeur, J. (2012). Volume of the cloacal protuberance as an indication of reproductive state in male Blue Tits Cyanistes caeruleus. Ardea, 100(2), 202-205. https://doi.org/10.5253/078.100.0212
    • Amy, M., Van Oers, K., & Naguib, M. (2012). Worms under cover: relationship between performance in learning tasks and personality in great tits (Parus major). Animal Cognition, 15(5), 763-770. https://doi.org/10.1007/s10071-012-0500-3
    • 2011

    • Van Oers, K., Buchanan, K. L., Thomas, T. E., & Drent, P. J. (2011). Correlated response to selection of testosterone levels and immunocompetence in lines selected for avian personality. Animal Behaviour, 81(5), 1055-1061. https://doi.org/10.1016/j.anbehav.2011.02.014
    • Naguib, M., Flörcke, C., & Van Oers, K. (2011). Effects of social conditions during early development on stress response and personality traits in great tits (Parus major). Developmental Psychobiology, 53(6), 592-600. https://doi.org/10.1002/dev.20533
    • Amo, L., Visser, M. E., & Van Oers, K. (2011). Smelling out predators is innate in birds. Ardea, 99(2), 177-184. https://doi.org/10.5253/078.099.0207
    • Van Oers, K., & Sinn, D. L. (2011). Towards a basis for the phenotypic gambit: advances in the evolutionary genetics of animal personality. In M. Inoue-Murayama, S. Kawamura, E. Inoue, & A. Weiss [Eds.], From genes to animal behavior: Social structures, personalities, communication by color (pp. 165-183). (Primatology Monographs). Springer. https://doi.org/10.1007/978-4-431-53892-9_7
    • 2010

    • Korsten, P., Mueller, J. C., Hermannstädter, C., Bouwman, K. M., Dingemanse, N. J., Drent, P. J., Liedvogel, M., Matthysen, E., Van Oers, K., van Overveld, T., Patrick, S. C., Quinn, J. G., Sheldon, B. C., Tinbergen, J. M., & Kempenaers, B. (2010). Association between DRD4 gene polymorphism and personality variation in great tits: a test across four wild populations. Molecular Ecology, 19(4), 832-843. https://doi.org/10.1111/j.1365-294X.2009.04518.x
    • Beintema, A., Baarspul, T., Krijger, J. P., Van Oers, K., & Keller, M. (2010). Black Terns Chlidonias niger and their dietary problems in Dutch wetlands. Ardea, 98(3), 365-372. https://doi.org/10.5253/078.098.0310
    • Van Oers, K., & Mueller, J. C. (2010). Evolutionary genomics of animal personality. Philosophical Transactions of the Royal Society B: Biological Sciences, 365(1560), 3991-4000. https://doi.org/10.1098/rstb.2010.0178
    • van Bers, N. E. M., Van Oers, K., Kerstens, H. H. D., Dibbits, B. W., Crooijmans, R. P. M. A., Visser, M. E., & Groenen, M. A. M. (2010). Genome-wide SNP detection in the great tit Parus major using high throughput sequencing. Molecular Ecology, 19, 89-99. https://doi.org/10.1111/j.1365-294X.2009.04486.x
    • Brommer, J. E., Alho, J. S., Biard, C., Chapman, J. R., Charmantier, A., Dreiss, A., Hartley, I. R., Hjernquist, M. B., Kempenaers, B., Komdeur, J., Laaksonen, T., Lehtonen, P. K., Lubjuhn, T., Patrick, S. C., Rosivall, B., Tinbergen, J. M., Van der Velde, M., Van Oers, K., Wilk, T., & Winkel, W. (2010). Passerine extrapair mating dynamics: a bayesian modeling approach comparing four species. American Naturalist, 176(2), 178-187. https://doi.org/10.1086/653660
    • Kurvers, R. H. J. M., Van Oers, K., Nolet, B. A., Jonker, R. M., van Wieren, S. E., Prins, H. H. T., & Ydenberg, R. C. (2010). Personality predicts the use of social information. Ecology Letters, 13(7), 829-837. https://doi.org/10.1111/j.1461-0248.2010.01473.x
    • Visser, M. E., Caro, S. P., Van Oers, K., Schaper, S. V., & Helm, B. (2010). Phenology, seasonal timing and circannual rhythms: towards a unified framework. Philosophical Transactions of the Royal Society B: Biological Sciences, 365(1555), 3113-3127. https://doi.org/10.1098/rstb.2010.0111
    • Van Oers, K., Richardson, D., Saether, S. A., & Komdeur, J. (2010). Reduced blood parasite prevalence with age in the Seychelles Warbler: selecive mortality or suppression of infection? Journal of Ornithology, 151(1), 69-77. https://doi.org/10.1007/s10336-009-0427-x
    • Naguib, M., Kazek, A. M., Schaper, S. V., Van Oers, K., & Visser, M. E. (2010). Singing activity reveals personality traits in great tits. Ethology, 116(8), 763-769. https://doi.org/10.1111/j.1439-0310.2010.01791.x
    • Kurvers, R. H. J. M., Prins, H. H. T., van Wieren, S. E., Van Oers, K., Nolet, B. A., & Ydenberg, R. C. (2010). The effect of personality on social foraging: shy barnacle geese scrounge more. Proceedings of the Royal Society B-Biological Sciences, 277(1681), 601-608. https://doi.org/10.1098/rspb.2009.1474
    • 2009

    • Jacot, A., Valcu, M., Van Oers, K., & Kempenaers, B. (2009). Experimental nest site limitation affects reproductive strategies and parental investment in a hole-nesting passerine. Animal Behaviour, 77(5), 1075-1083. https://doi.org/10.1016/j.anbehav.2009.01.012
    • Fucikova, E., Drent, P. J., Smits, N., & Van Oers, K. (2009). Handling stress as a measurement of personality in great tit nestlings (Parus major). Ethology, 115(4), 366-374. https://doi.org/10.1111/j.1439-0310.2009.01618.x
    • Kurvers, R. H. J. M., Eijkelenkamp, B., Van Oers, K., van Lith, B., van Wieren, S. E., Ydenberg, R. C., & Prins, H. H. T. (2009). Personality differences explain leadership in barnacle geese. Animal Behaviour, 78(2), 447-453. https://doi.org/10.1016/j.anbehav.2009.06.002
    • 2008

    • Van Oers, K. (2008). Animal personality, behaviour or traits: What are we measuring? European Journal of Personality, 22(5), 470-472.
    • Van Oers, K., Drent, P. J., Dingemanse, N. J., & Kempenaers, B. (2008). Personality is associated with extrapair paternity in great tits, Parus major. Animal Behaviour, 76, 555-563. https://doi.org/10.1016/j.anbehav.2008.03.011
    • 2007

    • Fidler, A. E., Van Oers, K., Drent, P. J., Kuhn, S., Mueller, J. C., & Kempenaers, B. (2007). Drd4 gene polymorphisms are associated with personality variation in a passerine bird. Proceedings of the Royal Society B-Biological Sciences, 274(1619), 1685-1691. https://doi.org/10.1098/rspb.2007.0337
    • Van Oers, K., & Carere, C. (2007). Long-term effects of repeated handling and bleeding in wild caught Great Tits Parus major. Journal of Ornithology, 148, S185-S190. https://doi.org/10.1007/s10336-007-0200-y
    • Van Oers, K. (2007). The need for interdisciplinary research in personality studies. European Journal of Personality, 21(5), 589-637. https://doi.org/10.1002/per.646
    • 2005

    • Van Oers, K., Klunder, M., & Drent, P. J. (2005). Context dependence of personalities: risk-taking behavior in a social and a nonsocial situation. Behavioral Ecology, 16(4), 716-723. https://doi.org/10.1093/beheco/ari045
    • Van Oers, K., de Jong, G., Van Noordwijk, A. J., Kempenaers, B., & Drent, P. J. (2005). Contribution of genetics to the study of animal personalities: a review of case studies. Behaviour, 142, 1185-1206. https://doi.org/10.1163/156853905774539364
    • 2004

    • Van Oers, K., Drent, P. J., de Jong, G., & Van Noordwijk, A. J. (2004). Additive and nonadditive genetic variation in avian personality traits. Heredity, 93(5), 496-503. https://doi.org/10.1038/sj.hdy.6800530
    • Van Oers, K., de Jong, G., Drent, P. J., & Van Noordwijk, A. J. (2004). A genetic analysis of avian personality traits: correlated, response to artificial selection. Behavior Genetics, 34(6), 611-619. https://doi.org/10.1007/s10519-004-5588-z
    • Mols, C. M. M., Van Oers, K., Witjes, L. M. A., Lessells, C. M., Drent, P. J., & Visser, M. E. (2004). Central assumptions of predator-prey models fail in a semi-natural experimental system. Proceedings of the Royal Society B-Biological Sciences, 271, S85-S87. https://doi.org/10.1098/rsbl.2003.0110
    • Van Oers, K., Drent, P. J., De Goede, P., & Van Noordwijk, A. J. (2004). Realized heritability and repeatability of risk-taking behaviour in relation to avian personalities. Proceedings of the Royal Society B-Biological Sciences, 271(1534), 65-73. https://doi.org/10.1098/rspb.2003.2518
    • Carere, C., & Van Oers, K. (2004). Shy and bold great tits (Parus major): body temperature and breath rate in response to handling stress. Physiology & Behavior, 82(5), 905-912. https://doi.org/10.1016/j.physbeh.2004.07.009
    • 2003

    • Van Oers, C. H. J. (2003). On the genetics of avain personalities: mechanism and structure of behavioural strategies in the great tit (Parus major) (PhD Thesis). Universiteit Utrecht. https://dspace.library.uu.nl/bitstream/handle/1874/238/full.pdf
    • Drent, P. J., Van Oers, K., & Van Noordwijk, A. J. (2003). Realized heritability of personalities in the great tit (Parus major). Proceedings of the Royal Society B-Biological Sciences, 270(1510), 45-51. https://doi.org/10.1098/rspb.2002.2168
    • 2002

    • Van Oers, K., Heg, D., & Le Drean Quenec'du, S. (2002). Anthelmintic treatment negatively affects chick survival in the Eurasian Oystercatcher Haematopus ostralegus. Ibis, 144(3), 509-517. https://doi.org/10.1046/j.1474-919X.2002.00078.x
    • Van Oers, K., & Van Dijk, J. (2002). Distribution and behavioural ecology of the Buffon`s Macaw of Guayaquil (Ara ambigua guayaquilensis) in Southwest Ecuador. In: Bird Research and Breeding. In C. Mettke-Hofmann, & U. Gansloßer [Eds.], Bird Research and Breeding. (pp. 159-173). Filander Verlag.
    • Drent, P. J., Dingemanse, N. J., & Van Oers, K. (2002). Functional significance and heritability in coping strategies in a wild territorial passerine: the Great Tit. In C. C. Mettke-Hofmann, & U. Gansloßer [Eds.], Bird Research and Breeding. (pp. 25-46). Filander Verlag.
    • Dingemanse, N. J., Both, C., Drent, P. J., Van Oers, K., & Van Noordwijk, A. J. (2002). Repeatability and heritability of exploratory behaviour in great tits from the wild. Animal Behaviour, 64(6), 929-938. https://doi.org/10.1006/anbe.2002.2006

      2019

    • Guldemond, A., Leendertse, P., van Beek, J., Hoftijser, E., & van Oers, K. (2019). Buxusmotbestrijding, gevaar voor kool- en pimpelmezen? Dierplagen Informatie, 2019(3), 4-6.
    • Guldemond, A., Gommer, R., Leendertse, P., & van Oers, K. (2019). Koolmezensterfte door buxusmotbestrijding? pesticidenbelasting bij jonge koolmezen. (CLM rapport; No. 998). CLM. https://www.clm.nl/uploads/pdf/998-CLMrapport-Mezen_buxusmot-sum.pdf
    • Guldemond, A., Leendertse, P., van Beek, J., Hoftijser, E., & van Oers, K. (2019). Mogelijke invloed buxusmotbestrijding op pimpel- en koolmezensterfte. In Jaarverslag Broedseizoen 2018: Nestkast: Landelijk NEtwerk voor STudies aan nestKASTbroeders (pp. 34-36). NIOO-KNAW. https://www.sovon.nl/nl/publicaties/nestkast-jaarverslag-broedseizoen-2018
    • Verhagen, I. C., Gienapp, P., Laine, V., Mateman, A. C., van Oers, K., & Visser, M. E. (2019). Successful genomic selection for timing of breeding in a wild songbird. (Functional Ecology). https://besjournals.onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1111%2F1365-2435.13360&file=fec13360-sup-0001-Summary.pdf
    • 2018

    • Ruuskanen, S., Groothuis, T. G. G., Baugh, A. T., Schaper, S. V., de Vries, B., & van Oers, K. (2018). Maternal egg hormones in the mating context: the effect of pair personality: lay summary. (Functional Ecology; No. 20170918). https://fesummaries.wordpress.com/2017/09/18/maternal-egg-hormones-in-the-mating-context-the-effect-of-pair-personality/
    • Guldemond, A., Leendertse, P., van Beek, J., Hoftijser, E., & van Oers, K. (2018). Mezensterfte door buxusmotbestreiding? Gewasbescherming, 49(4/5/6), 140-145. https://www.knpv.org/db/upload/documents/Gewasbescherming/2018gb49nr456.pdf.pdf
    • Guldemond, A., Leendertse, P., van Beek, J., Hoftijser, E., & van Oers, K. (2018). Mezensterfte door buxusmotbestrijding? verkennende studie van pesticidenbelasting bij jonge kool- en pimpelmezen. (4/5/6 ed.) (CLM rapport; No. 962). CLM. https://www.clm.nl/uploads/pdf/962-CLMrapport-Mezen_buxusmot-web.pdf
    • 2016

    • van Oers, K. (2016). Koolmeesgenoom. Mens en Vogel, 54(2), 48-53.
    • 2011

    • van Oers, K. (2011). Het gebruik van DNA voor vogelonderzoek. Op het Vinkentouw, 122(1), 7-9. http://natuurtijdschriften.nl/search?identifier=522835
    • 2010

    • Kurvers, R. H. J. M., Nolet, B. A., Van Oers, K., & Prins, H. H. T. (2010). Brandganzen hebben persoonlijkheid. Vogels, 31.

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