Data from: The effect of social environment on bird song: listener-specific expression of a sexual signalMónika Jablonszky, Sándor Zsebők, Miklós Laczi, Gergely Nagy, Éva Vaskuti & László Zsolt Garamszegi
Animal signals should consistently differ among individuals to convey distinguishable information about the signalers. However, behavioral display signals, such as bird song are also loaded with considerable within-individual variance with mostly unknown function. We hypothesized that the immediate social environment may play a role in mediating such variance component, and investigated in the collared flycatcher (Ficedula albicollis) if the identity and quality of listeners could affect song production in signalers. After presenting territorial males with...
Habitat features and colony characteristics influencing ant personality and its fitness consequencesIstván Maák, Trigos-Peral Gema, Ślipiński Piotr, Grześ Irena & Horváth Gergely
Several factors can influence individual and group behavioral variation that can have important fitness consequences. In this study, we tested how two habitat types (semi-natural meadows and meadows invaded by Solidago plants) and factors like colony and worker size and nest density influence behavioral (activity, meanderness, exploration, aggression, nest displacement) variation on different levels of the social organization of Myrmica rubra ants and how these might affect the colony productivity. We assumed that the factors...
Data from: Is foraging innovation lost following colonisation of a less variable environment? a case study in surface- vs. cave-dwelling Asellus aquaticusGábor Herczeg, Viktória Priszcilla Hafenscher, Gergely Balázs, Žiga Fišer, Simona Kralj-Fišer & Gergely Horváth
Behavioural innovation is a key process for successful colonisation of new habitat types. However, it is costly due to the necessary cognitive and neural demands and typically connected to ecological generalism. Therefore, loss of behavioural innovativeness is predicted following colonisation of new, simple and invariable environments. We tested this prediction by studying foraging innovativeness in the freshwater isopod Asellus aquaticus. We sampled its populations along the route of colonising a thermokarstic water-filled cave (simple, stable...
This Bitcoin transaction network data as extracted with the bitcoind client. Due to the nature of Bitcoin, all transactions are published to a P2P network. These can be downloaded and extracted with any of the available client programs. This dataset includes the data used in our papers: Kondor, D., Pósfai, M., Csabai, I., & Vattay, G. (2014). Do the rich get richer? An empirical analysis of the BitCoin transaction network. PLoS ONE, 9(2), e86197. https://doi.org/10.1371/journal.pone.0086197...
Mechanisms affecting consistent inter-individual behavioural variation (i.e. animal personality) are of wide scientific interest. In poikilotherms, ambient temperature is one of the most important environmental factors with a direct link to a variety of fitness-related traits. Recent empirical evidence suggests that individual differences in boldness are linked to behavioural thermoregulation strategy in heliothermic species, as individuals are regularly exposed to predators during basking. Here, we tested for links between behavioural thermoregulation strategy, boldness and individual...
Maternal effects and urbanization: Variation of yolk androgens and immunoglobulin in city and forest blackbirdsJesko Partecke, Gergely Hegyi, Patrick S. Fitze, Julien Gasparini & Hubert Schwabl
Wildlife inhabiting urban environments exhibit drastic changes in morphology, physiology and behaviour. It has often been argued that these phenotypic responses could be the result of micro-evolutionary changes following the urbanization process. However, other mechanisms such as phenotypic plasticity, maternal effects and developmental plasticity could be involved as well. To address maternal effects as potential mechanisms, we compared maternal hormone and antibody concentrations in eggs between city and forest populations of European blackbirds (Turdus merula),...
The interplay between habitat use, morphology and locomotion in subterranean crustaceans of the genus NiphargusSimona Kralj-Fišer, Žiga Fišer, Ester Premate, Teja Vovk, Gabor Herczeg, Gergely Balázs, Denis Copilas-Ciocianu, Teo Delić & Cene Fišer
Locomotion is an important, fitness-related functional trait. Environment selects for type of locomotion and shapes the morphology of locomotion-related traits such as body size and appendages. In subterranean aquatic arthropods, these traits are subjected to multiple, at times opposing selection pressures. Darkness selects for enhanced mechano- and chemosensory systems and hence elongation of appendages. Conversely, water currents have been shown to favor short appendages. However, no study has addressed the variation in locomotion of invertebrates...
Sexually dimorphic ornamental traits are widely regarded as indicators of nutritional condition. However, variation of nutritional condition outside the reproductive and the ornament production seasons has rarely been considered, although it affects the generality of information content, especially for ornaments that may be used across the year. We measured several indicators of migratory and moult condition in male and female blackcaps (Sylvia atricapilla) during their autumn migration, and quantified their crown reflectance. We detected robust...
Eötvös Loránd University10
Museo Nacional de Ciencias Naturales2
University of Ljubljana2
Max Planck Institute for Ornithology1
Institute of Ecology and Botany1
Museum and Institute of Zoology1
Australian National University1
Institute of Animal Sciences1
Lietuvos Mokslo Taryba1
Institute of Ecology and Environmental Sciences Paris1