Marcel Honza

Timing pattern of Common Cuckoo parasitism and its relation to host nest attendance

Gabriela Štětková, Jan STUDECKÝ, Václav Jelínek, Martin Večeřa et autres

Classical works show the adaptive importance of precise timing of egg‐laying in brood parasitic Common Cuckoos Cuculus canorus to ensure sufficient incubation time and successful hatching. Laying in the late afternoon has been suggested to increase the chance of secretive parasitism and …

cz (code pays fourni par la source)

Genomic architecture of egg mimicry and its consequences for speciation in parasitic cuckoos

Justin Meröndun, Frode Fossøy, Swetlana G. Meshcheryagina, Philip W. Atkinson et autres

Host-parasite arms races facilitate rapid evolution and can fuel speciation. Cuculus cuckoos are deceptive egg mimics that exhibit a broad diversity of counterfeit egg phenotypes, representing host-adapted subpopulations (gentes). Genome analysis of 298 common ( Cuculus canorus ) and 50 oriental cuckoos …

ca, de, no, ru, gb, cz, hu, fi, dk, cn (code pays fourni par la source)

Learned use of an innate sound-meaning association in birds

William E. Feeney, James A. Kennerley, David J. Wheatcroft, Wei Liang et autres

au, es, gb, de, lk, us, se, cn, nl, pl, ar, cz, Afrique du Sud (code pays fourni par la source)

The number of brood parasite visits affects subsequent aggression towards the parasite dummy in host males, but not in females

Milica Požgayová, Peter Samaš, Michal Šulc, Gabriela Štětková et autres

Abstract Aggression towards brood parasites is an important component of host frontline defences. Hosts sometimes adjust this behaviour based on their previous experience with the parasites. Here, we explore whether host aggression towards the parasite dummy is affected by (1) the number …

cz (code pays fourni par la source)

Host nest defence does not act as selective agent against plumage polymorphism in brood parasites

Marcel Honza, Gabriela Štětková, Milica Požgayová, Peter Samaš

Batesian mimicry in brood parasites is often viewed as an evolutionary strategy to mitigate host aggression. Female common cuckoos ( Cuculus canorus ) exhibit two morphs: the hawk-like grey and the rufous one, potentially maintained by apostatic selection. It was hypothesized that …

cz (code pays fourni par la source)

Low breeding synchrony of great reed warbler hosts in warmer springs does not increase their susceptibility to common cuckoo parasitism

Milica Požgayová, Marcel Honza, Petr Procházka

Breeding simultaneously with other members of a population can be induced socially or by the seasonality of climatic conditions or availability of resources. Simultaneous breeding has several fitness benefits, including mate choice, food acquisition or protection against nest predators or brood parasites. …

cz (code pays fourni par la source)

Egg rejection from dark cavities: compensation for chromatic changes in nest illumination by a cuckoo host

Peter Samaš, Daniel Hanley, Miroslav Čapek, Casey H. Greenberg et autres

Rejection of foreign eggs is an effective defence against brood parasitism in birds. Colourful egg stimuli are among the most important cues for recognition, but varying ambient light conditions can potentially affect the decision-making process. Birds may compensate for varied illumination through …

cz, us (code pays fourni par la source)

Avian obligate brood parasitic lineages evolved variable complex polycrystalline structures to build tougher eggshells

Analía V. López, Seung Hyun Choi, Yong Chul Park, Daniel Hanley et autres

Avian brood parasites and their hosts display varied egg-puncture behaviors, exerting asymmetric co-evolutionary selection pressures on eggshells' breaking strength. We investigated eggshell structural and textural characteristics that may improve its mechanical performance. Parasitic eggshell calcified layers showed complex ultra- and microstructural patterns. …

ar, cn, kr, us, cz (code pays fourni par la source)

Egg mimicry, not the sight of a common cuckoo, is the cue for parasitic egg rejection

Gabriela Štětková, Michal Šulc, Václav Jelínek, Anna E. Hughes et autres

Abstract Many studies have found that if hosts observe a brood parasite at their nest, they use it as a cue to reject parasitic eggs. However, most previous work has simulated brood parasitic events by exposing a stuffed parasite near a host’s …

cz, gb (code pays fourni par la source)

Multiple parasitism in an evictor brood parasite: patterns revealed by long-term monitoring, continuous video recording, and genetic analyses

Marcel Honza, Jaroslav Koleček, Lubomír Piálek, Radka Piálková et autres

cz, gb (code pays fourni par la source)

Ultraviolet coloration of avian parasitic egg does not cue egg rejection in the common redstart host

Marcel Honza, Miroslav Čapek, Oldřich Mikulica, Peter Samaš

cz (code pays fourni par la source)

Is there an effect of fostering a brood parasite on the timing of host autumn migration?

Milica Požgayová, Jaroslav Koleček, Marcel Honza, Petr Procházka

cz (code pays fourni par la source)