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Article
Ultraviolet coloration of avian parasitic egg does not cue egg rejection in the common redstart host
Marcel Honza, Auteur ; Miroslav Capek, Auteur ; Oldřich Mikulica, Auteur ; Peter Samaš, AuteurAvian brood parasite hosts can use distinct egg traits to recognize a parasitic egg. Previous studies suggested an important role of eggshell ultraviolet (UV) reflectance in rejection. According to the egg detectability hypothesis, natural selec[...]
Article
Milica Požgayová, Auteur ; Jaroslav Kolecek, Auteur ; Marcel Honza, Auteur ; Petr Procházka, AuteurObligate avian brood parasites usually require longer and/or more parental care than host progeny and thus may have a detrimental effect on survival of host parents. Many hosts of brood parasites are long-distance migrants, spending significant [...]
Article
Václav Jelínek, Auteur ; Michal Šulc, Auteur ; Gabriela Štětková, Auteur ; Marcel Honza, AuteurAvian brood parasites pose a serious threat to hosts, substantially reducing their fitness, which selects for the evolution of host defences. A classic example of a host frontline defence is mobbing, which frequently includes contact attacking o[...]
Article
Václav Jelínek, Auteur ; Michal Šulc, Auteur ; Karel Weidinger, Auteur ; Marcel Honza, AuteurDespite the fact that parent-absent begging (PAB) has been studied as a communication tool during competition between nestlings for food or as a signal of need, its role in nest predation has been poorly investigated. In this study we examined w[...]
Article
Jaroslav Kolecek, Auteur ; Michal Šulc, Auteur ; Radka Piálková, Auteur ; Jolyon Troscianko, Auteur ; Milica Požgayová, Auteur ; Marcel Honza, Auteur ; Petr Procházka, AuteurThe Common Cuckoo (hereafter Cuckoo) shows two adult plumage morphs—adult male plumage is grey and adult females are either grey or, less frequently, rufous. The situation is less clear in juveniles, as both sexes exhibit variable proportions of[...]
Article
Kateřina Sosnovcová, Auteur ; Jaroslav Kolecek, Auteur ; Milica Požgayová, Auteur ; Václav Jelínek, Auteur ; Michal Šulc, Auteur ; Petra Steidlová, Auteur ; Marcel Honza, Auteur ; Petr Procházka, AuteurIn many bird species, return rates tend to be greatest in the vicinity of their hatching site, thus natal philopatry is an important trait in avian demography. In the present study, we examined how conditions in natal nests affect return rates a[...]
Article
Miroslav Capek, Auteur ; Tereza Petrusková, Auteur ; Zuzana Šebelíková, Auteur ; Jesús Campos Serrano, Auteur ; Petr Procházka, Auteur ; Marcel Honza, Auteur ; Milica Požgayová, AuteurIn some systems, brood parasites may be attracted by vocal or visual signals connected with host breeding. We studied a Great Reed Warbler (Acrocephalus arundinaceus) population where annually 30–50% of nests are parasitized by the Common Cuckoo[...]
Article
Václav Jelínek, Auteur ; Petr Procházka, Auteur ; Marcel Honza, AuteurWe assessed whether nest size affects the probability of nest loss using dyads of large and small (large being twice the size of small) inactive Great Reed Warbler Acrocephalus arundinaceus nests placed at similar sites in Great Reed Warbler ter[...]
Article
Václav Jelínek, Auteur ; Petr Procházka, Auteur ; Marcel Honza, AuteurWe assessed whether nest size affects the probability of nest loss using dyads of large and small (large being twice the size of small) inactive Great Reed Warbler Acrocephalus arundinaceus nests placed at similar sites in Great Reed Warbler ter[...]
Article
Marcel Honza, Auteur ; Kateřina Feikusová, Auteur ; Petr Procházka, Auteur ; Jaroslav Picman, AuteurOne of the most obvious adaptations to the brood parasitic mode of reproduction is the formation of eggs with unusually strong shells, which apparently reduce chances of egg breakage during laying and puncture ejection attempts of parasitic eggs[...]
Article
Milica Požgayová, Auteur ; Petr Procházka, Auteur ; Marcel Honza, AuteurNest predation and brood parasitism are costly for nest owners, and natural selection should therefore favour the evolution of parental counterdefences. We addressed the question of whether Blackcaps Sylvia atricapilla change their incubation be[...]
Article
Alfréd Trnka, Auteur ; Milica Požgayová, Auteur ; Petr Procházka, Auteur ; Miroslav Capek, Auteur ; Marcel Honza, AuteurThe use of active chemical defence against predators is relatively rare in birds. Among others, it has been reported for some members of family Cuculidae whose chicks, when threatened, expel dark foul-smelling liquid from their cloaca. Apart fro[...]
Article
Václav Jelínek, Auteur ; Petr Procházka, Auteur ; Milica Požgayová, Auteur ; Marcel Honza, AuteurIn recent decades, numerous studies have examined factors affecting risk of host nest parasitism in well-known avian host-parasite systems; however, little attention has been paid to the role of host nest availability. In accordance with other s[...]
Article
Jaroslav Kolecek, Auteur ; Petr Procházka, Auteur ; Naglaa El-Arabany, Auteur ; Maja Tarka, Auteur ; Mihaela Ilieva, Auteur ; Steffen Hahn, Auteur ; Marcel Honza, Auteur ; Javier de la Puente, Auteur ; Ana Bermejo, Auteur ; Arzu Gursoy, Auteur ; Staffan Bensch, Auteur ; Pavel Zehtindjiev, Auteur ; Dennis Hasselquist, Auteur ; Bengt Hansson, AuteurMigratory connectivity describes to which degree different breeding populations have distinct (non-overlapping) non-breeding sites. Uncovering the level of migratory connectivity is crucial for effective conservation actions and for understandin[...]
Article
Petr Procházka, Auteur ; Marcel Honza, Auteur
Article
Marcel Honza, Auteur ; Katerina Voslajerova, Auteur ; Csaba Moskát, AuteurWe studied the eviction behaviour of common cuckoo Cuculus canorus chicks by video recording at nests of great reed warblers Acrocephalus arundinaceus and reed warblers Acrocephalus scirpaceus. There were no significant differences in hatching m[...]
Article
Marcel Honza, Auteur ; Vaclav Sicha, Auteur ; Petr Procházka, Auteur ; Radka Lezalova, AuteurWe tested great reed warbler (Acrocephalus arundinaceus) discrimination against two common cuckoo (Cuculus canorus) female color morphs (gray and rufous) in two areas with different parasitism rates and proportions of the two morphs. Hosts recog[...]
Article
Arne Moksnes, Auteur ; Eivin Roskaft, Auteur ; Geir Rudolfsen, Auteur ; Sigrun Skjelseth, Auteur ; Bard G. Stokke, Auteur ; Oddmund Kleven, Auteur ; H. Lisle Gibbs, Auteur ; Marcel Honza, Auteur ; Barbara Taborsky, Auteur ; Yvonne Teuschl, Auteur ; Wolfgang Vogl, Auteur ; Michael Taborsky, AuteurFemales of the obligate brood parasitic common cuckoo Cuculus canorus are assumed to lay eggs of consistent colour and pattern and egg characteristics have been used to separate between different individuals. We tested the "constant egg-type hyp[...]
Article
Václav Jelínek, Auteur ; Milica Požgayová, Auteur ; Marcel Honza, Auteur ; Petr Procházka, AuteurExtended phenotypes with signalling function are mostly restricted to animal taxa that use construction behaviour during courtship displays. However, they can be used also as post-mating signals of mate quality, allowing individuals to obtain re[...]
Article
Radka Lezalova-Pialkova, Auteur ; Marcel Honza, AuteurConspecific brood parasitism in birds occurs when a female inserts her egg into the clutch of her own species. If successful, i.e. the parasitic egg is accepted by the host, then the host female or pair rears the offspring of the parasite. In th[...]
Article
Lenka Polacikova, Auteur ; Mark E. Hauber, Auteur ; Petr Procházka, Auteur ; Phillip Cassey, Auteur ; Marcel Honza, Auteur ; Tomáš Grim, AuteurThe rejection of eggs of brood parasites in several species of hosts is based on cues only at the blunt pole (BP) and not at the sharp pole (SP) of the foreign and own eggshell. We investigated whether intraclutch variation is confined to a spec[...]
Article
Marcel Honza, Auteur ; Petr Procházka, Auteur ; Milica Požgayová, AuteurWhile avian eggshell colouration has attracted biologists for decades, little is known about its variation within individuals. The main goal of this study was to explore within- and between-season repeatability of eggshell appearance in the grea[...]
