5 Works

Data from: No immediate or future extra costs of raising a virulent brood parasite chick

Peter Samaš, Tomas Grim, Václav Jelínek, Marek M. Abraham, Michal Šulc & Marcel Honza
Parental care is an adaptive behaviour increasing the survival of young. Virulent brood parasites, like the common cuckoo Cuculus canorus, avoid the parental care and leave the care for their nestlings to hosts. Although raising a cuckoo is always costly because it kills host’s progeny, to date it is not known whether raising of a brood parasite itself represents an extra cost affecting host’s fitness. We quantified costs of rearing a cuckoo nestling in the...

Data from: Contagious fear: escape behaviour increases with flock size in European gregarious birds

Federico Morelli, Yanina Benedetti, Mario Diaz, Tomas Grim, Juan Ibáñez-Álamo, Jukka Jokimäki, Marja-Liisa Kaisanlahti-Jokimäki, Kunter Tätte, Gábor Markó, Yiting Jiang, Piotr Tryjanowski & Anders P. Møller
Flight initiation distance (FID), the distance at which individuals take flight when approached by a potential (human) predator, is a tool for understanding predator-prey interactions. Among the factors affecting FID, tests of effects of group size (i.e. number of potential prey) on FID have yielded contrasting results. Group size or flock size could either affect FID negatively (i.e. the dilution effect caused by the presence of many individuals) or positively (i.e. increased vigilance due to...

Data from: A full annual perspective on sex-biased migration timing in long-distance migratory birds

Martins Briedis, Silke Bauer, Peter Adamik, José A. Alves, Joana S. Costa, Tamara Emmenegger, Lars Gustafsson, Jaroslav Koleček, Felix Liechti, Christoph M. Meier, Petr Prochazka & Steffen Hahn
In many taxa, the most common form of sex-biased migration timing is protandry – the earlier arrival of males at breeding areas. Here we test this concept across the annual cycle of long-distance migratory birds. Using more than 350 migration tracks of small-bodied trans-Saharan migrants, we quantify differences in male and female migration schedules and test for proximate determinants of sex-specific timing. In spring, males on average departed from the African non-breeding sites about 3...

Data from: Broad-scale patterns of the Afro-Palearctic landbird migration

Martins Briedis, Silke Bauer, Peter Adamík, José Alves, Joana Costa, Tamara Emmenegger, Lars Gustafsson, Jaroslav Koleček, Miloš Krist, Felix Liechti, Simeon Lisovski, Christoph Meier, Petr Procházka & Steffen Hahn
Aim: Animal migration strategies balance trade-offs between mortality and reproduction in seasonal environments. Knowledge of broad-scale biogeographical patterns of animal migration is important for understanding ecological drivers of migratory behaviours. Here we present a flyway-scale assessment of the spatial structure and seasonal dynamics of the Afro-Palearctic bird migration system and explore how phenology of the environment guides long-distance migration. Location: Europe and Africa. Time period: 2009–2017. Major taxa studied: Birds. Methods: We compiled an individual-based...

Evolution of a multifunctional trait: shared effects of foraging ecology and thermoregulation on beak morphology, with consequences for song evolution

Nicholas R. Friedman, Eliot T. Miller, Jason R. Ball, Haruka Kasuga, Vladimír Remeš & Evan P. Economo
While morphological traits are often associated with multiple functions, it remains unclear how evolution balances the selective effects of different functions. Birds' beaks function in foraging, but also in thermoregulating and singing, among other behaviours. Studies of beak evolution abound, however most focus on a single function. Thus, we quantified relative contributions of different functions over an evolutionary time scale. We measured beak shape using geometric morphometrics and compared this trait to foraging behaviour, climatic...

Registration Year

  • 2019

Resource Types

  • Dataset


  • Palacký University, Olomouc
  • Academy of Sciences of the Czech Republic
  • University of Aveiro
  • Swiss Ornithological Institute
  • Uppsala University
  • University of Groningen
  • Eötvös Loránd University
  • Spanish National Research Council
  • AgroParisTech
  • Okinawa Institute of Science and Technology