Explanipedia

Sexually attractive males produce relatively more sons in a fish with external fertilisation Open

Theo C. M. Bakker, Björn Müller, Marion Mehlis-Rick · 2025

According to the mate attractiveness hypothesis of biased progeny sex-ratio, sexually attractive males should produce relatively more sons. We tested this hypothesis with three-spined sticklebacks Gasterosteus aculeatus, a fish species wit…

Adaptive variation in opsin expression of sticklebacks from different photic habitats Open

Theo C. M. Bakker, Meike Hiermes, Björn Müller, Sebastián Martín, Diana J. Rennison , et al. · 2024

We studied phenotypic and genetic adaptation of the visual system of three-spined sticklebacks, Gasterosteus aculeatus , from North Uist, Scotland. We quantified differences in opsin gene expression of the four cone opsin genes among wild-…

Investigation of Irradiation Hardening and Effectiveness of Post-Irradiation Annealing on the Recovery of Tensile Properties of VVER-1000 Realistic Welds Irradiated in the LYRA-10 Experiment Open

Mathilde Laot, Viviam Marques Pereira, Theo C. M. Bakker, E. D’Agata, Olivier Martin , et al. · 2024

Assessing the embrittlement and hardening of reactor pressure vessel steels is critical for the extension of the service lifetime of nuclear power plants. This paper summarises the tensile test results on the irradiation behaviour of reali…

Exorcising the ghost in the computer: ChatGPT, science publishing, and GenAI policy for Behavioral Ecology and Sociobiology Open

Theo C. M. Bakker, James F. A. Traniello · 2023

Sociality and disease: behavioral perspectives in ecological and evolutionary immunology Open

Rebeca B. Rosengaus, James F. A. Traniello, Theo C. M. Bakker · 2022

Effectiveness of Thermal Annealing in Recovery of Tensile Properties of Compositionally Tailored PWR Model Steels Irradiated in LYRA-10 Open

Mathilde Laot, Kiki Naziris, Theo C. M. Bakker, E. D’Agata, Oliver Martin , et al. · 2022

Understanding the mechanical behaviour of reactor pressure vessel (RPV) steels at high fluences has become an important topic in regard to Long-Term Operations (LTO) of existing nuclear power plants (NPP). The effectiveness of thermal anne…

Influence of lighting environment on social preferences in sticklebacks from two different photic habitats. II. Shoaling and mate preferences of lab-bred fishes Open

Meike Hiermes, Michael Marder, Stephanie Reher, Ingolf P. Rick, Simon Vitt , et al. · 2021

Different environmental conditions may lead to diverse morphological, behavioral, and physiological adaptations of different populations of the same species. Lighting conditions, for example, vary vastly especially between aquatic habitats…

Influence of lighting environment on social preferences in sticklebacks from two different photic habitats. I. mate preferences of wild-caught females Open

Meike Hiermes, Stephanie Reher, Ingolf P. Rick, Theo C. M. Bakker · 2021

Ultraviolet (UV) A signals (320–400 nm) are important in mate choice in numerous species. The sensitivity for UV signals is not only assumed to be costly, but also expected to be a function of the prevailing ecological conditions. Generall…

Nest-site selection in a fish species with paternal care Open

Theo C. M. Bakker, Beat Mundwiler · 2020

Anticipatory plastic response of the cellular immune system in the face of future injury: chronic high perceived predation risk induces lymphocytosis in a cichlid fish Open

Denis Meuthen, I. Meuthen, Theo C. M. Bakker, Timo Thünken · 2020

Vertebrate cellular immunity displays substantial variation among taxa and environments. Hematological parameters such as white blood-cell counts have emerged as a valuable tool to understand this variation by assessing the immunological s…

Ensuring data access, transparency, and preservation: mandatory data deposition for Behavioral Ecology and Sociobiology Open

Theo C. M. Bakker, James F. A. Traniello · 2020

Universal data sharing allows access to data sets supporting published research and enables the use of data for additional applications.It is important for quality control to ensure compliance with best practices for publication and scient…

Social behavior and disease: supporting science during the pandemic Open

James F. A. Traniello, Theo C. M. Bakker · 2020

Mate assessment behavior is correlated to learning ability in female threespine sticklebacks Open

Taylor L. Rystrom, Theo C. M. Bakker, Ingolf P. Rick · 2019

In many species, males signal quality with elaborate traits, but females often show inter-individual variation in preference for these traits. Choosing a mate requires multiple cognitive steps; therefore, cognitive style (how an individual…

Peer-review reciprocity and commitment to manuscript evaluation Open

Theo C. M. Bakker, James F. A. Traniello · 2019

Predatory developmental environments shape loser behaviour in animal contests Open

Denis Meuthen, Theo C. M. Bakker, Timo Thünken · 2019

High predation risk during development induces phenotypic changes in animals. However, little is known about how these plastic responses affect signalling and competitiveness during contests. Herein, we have studied the consequences of ant…

Parasite-induced colour alteration of intermediate hosts increases ingestion by suitable final host species Open

Timo Thünken, Sebastian A. Baldauf, Nicole Bersau, Joachim G. Frommen, Theo C. M. Bakker · 2019

Parasites with complex life cycles often alter the phenotypic appearance of their intermediate hosts in order to facilitate ingestion by the final host. However, such manipulation can be costly as it might increase ingestion by less suitab…

Editorial to the topical collection “From sensory perception to behavior” Open

Theo C. M. Bakker, Horst Bleckmann, Joachim Mogdans, Vera Schluessel · 2018

Long-term UVB exposure promotes predator-inspection behaviour in a fish Open

Simon Vitt, Janina E. Zierul, Theo C. M. Bakker, Ingolf P. Rick · 2017

Ultraviolet-B radiation (UVB) reaching the earth's surface has increased due to human-caused stratospheric ozone depletion. Whereas the harmful effects of UVB on aquatic organisms are well studied at the molecular and cellular level, recen…

Effects of ageing and inbreeding on the reproductive traits in a cichlid fish I: the male perspective Open

Kathrin Langen, Theo C. M. Bakker, Sebastian A. Baldauf, Jujina Shrestha, Timo Thünken · 2017

Inbreeding and ageing can affect characteristics of reproductive physiology, influencing an individual’s fecundity, fertility, and thus fitness. The effects of inbreeding and age are expected to depend on several factors such as inbreeding…

Behave in your parasite’s interest Open

Theo C. M. Bakker, James F. A. Traniello · 2017

Effects of ageing and inbreeding on the reproductive traits in a cichlid fish II: the female perspective Open

Kathrin Langen, Theo C. M. Bakker, Sebastian A. Baldauf, Jujina Shrestha, Timo Thünken · 2017

Inbreeding and ageing have substantial impact on an individual’s fitness. Both can lead to an accumulation of deleterious alleles resulting in an addition of effects when inbreeding and age interact. The aim of this study was to investigat…

Diplostomum genotypes from "Strong neutral genetic differentiation in a host, but not in its parasite" Open

Anna K. Rahn, Johannes Krassmann, Kostas Tsobanidis, Andrew D. C. MacColl, Theo C. M. Bakker · 2017

Microsatellite genotypes and GenBank accession numbers of the cox1 sequences of Diplostomum lineage 6 from North Uist, UK.

Supplementary material from "Long-term Ultraviolet B radiation exposure promotes predator inspection behaviour in a fish" Open

Simon Vitt, Janina E. Zierul, Theo C. M. Bakker, Ingolf P. Rick · 2017

Ultraviolet B radiation (UVB) reaching the earth's surface has increased due to human-caused stratospheric ozone depletion. Whereas the harmful effects of UVB on aquatic organisms are well studied at the molecular and cellular level, recen…

Stickleback genotypes from "Strong neutral genetic differentiation in a host, but not in its parasite" Open

Anna K. Rahn, Johannes Krassmann, Kostas Tsobanidis, Andrew D. C. MacColl, Theo C. M. Bakker · 2017

Microsatellite genotypes of three-spined sticklebacks (Gasterosteus aculeatus) from the island of North Uist, UK.

Dataset from Long-term Ultraviolet B radiation exposure promotes predator inspection behaviour in a fish Open

Simon Vitt, Janina E. Zierul, Theo C. M. Bakker, Ingolf P. Rick · 2017

raw data

Behavioral Ecology and Sociobiology at 40 Open

Theo C. M. Bakker, James F. A. Traniello · 2016

Erratum: Context-dependent dynamic UV signaling in female threespine sticklebacks Open

Meike Hiermes, Theo C. M. Bakker, Marion Mehlis, Ingolf P. Rick · 2016

Scientific Reports 5: Article number: 17474; published online: 10 December 2015; updated: 08 September 2016

Distribution of common stickleback parasites on North Uist, Scotland, in relation to ecology and host traits Open

Anna K. Rahn, Elisabeth Eßer, Stephanie Reher, Flora Ihlow, Andrew D. C. MacColl , et al. · 2016

Editorial: special issue on Integrative Analysis of Division of Labor Open

Theo C. M. Bakker · 2016

The dynamics of color signals in male threespine sticklebacks<i>Gasterosteus aculeatus</i> Open

Meike Hiermes, Ingolf P. Rick, Marion Mehlis, Theo C. M. Bakker · 2016

Body coloration and color patterns are ubiquitous throughout the animal kingdom and vary between and within species. Recent studies have dealt with individual dynamics of various aspects of coloration, as it is in many cases a flexible tra…

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