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Article
Aneta Arct, Auteur ; Szymon M. Drobniak, Auteur ; Samantha Mellinger, Auteur ; Rafał Martyka, Auteur ; Lars Gustafsson, Auteur ; Mariusz Cichoń, AuteurDans Ibis (164(2) 2022)There is growing evidence that engaging in extra-pair copulations may be a strategy by which females can modify their initial mate choice if they are constrained by primary choice of the social mate. Several factors such as genetic similarity an[...]
Article
Jowita Niedojadlo, Auteur ; Agata Bury, Auteur ; Mariusz Cichoń, Auteur ; Edyta T. Sadowska, Auteur ; Ulf Bauchinger, AuteurThermoregulation constitutes an important share of the energy budget of endotherms. Elevated thermoregulatory requirements must be met by oxygen supply through the blood, as heat is produced mainly via aerobic processes. In contrast to mammal st[...]
Article
Joanna Sudyka, Auteur ; Aneta Arct, Auteur ; Szymon Drobniak, Auteur ; Lars Gustafsson, Auteur ; Mariusz Cichoń, AuteurEvidence is accumulating that telomeres become shorter with advancing age and possibly explain some of the observed variation in longevity. Cross-sectional analyses have shown that species with shorter lifespans lose more telomeric repeats with [...]
Article
Edyta Podmokla, Auteur ; Anna Dubiec, Auteur ; Szymon M. Drobniak, Auteur ; Aneta Arct, Auteur ; Lars Gustafsson, Auteur ; Mariusz Cichoń, AuteurHaemosporidians causing avian malaria are very common parasites among bird species. Their negative effects have been repeatedly reported in terms of deterioration in survival prospects or reproductive success. However, a positive association bet[...]
Article
Edyta Podmokla, Auteur ; Anna Dubiec, Auteur ; Szymon M. Drobniak, Auteur ; Aneta Arct, Auteur ; Lars Gustafsson, Auteur ; Mariusz Cichoń, AuteurParasite species are usually specialists utilising specific host species, but parasite assemblages may differ substantially even between populations of the same species and show seasonal and annual fluctuations. Host characteristics such as indi[...]
Article
Edyta Podmokla, Auteur ; Anna Dubiec, Auteur ; Szymon M. Drobniak, Auteur ; Joanna Sudyka, Auteur ; Adam Krupski, Auteur ; Aneta Arct, Auteur ; Lars Gustafsson, Auteur ; Mariusz Cichoń, AuteurParasites are ubiquitous in the wild and by imposing fitness costs on their hosts they constitute an important selection factor. One of the most common parasites of wild birds are Plasmodium and Haemoproteus, protozoans inhabiting the blood, whi[...]
Article
Anna Dubiec, Auteur ; Kinga Deptuch, Auteur ; Mariusz Cichoń, Auteur
Article
Tomasz Wilk, Auteur ; Mariusz Cichoń, Auteur ; Kirsten Wolff, AuteurExtra-pair paternity is common in many socially monogamous bird species. Increasing evidence suggests that extra-pair copulations are female-driven, but benefits for females mating outside social pair-bonds are still poorly understood. The most [...]
Article
Edyta Podmokla, Auteur ; Anna Dubiec, Auteur ; Aneta Arct, Auteur ; Szymon M. Drobniak, Auteur ; Lars Gustafsson, Auteur ; Mariusz Cichoń, AuteurExtra-pair matings comprise a common reproductive strategy among socially monogamous bird species. However, it remains unclear why females decide to mate with extra-pair males. Indirect benefits in terms of improving offspring genetic quality ar[...]
Article
Tomasz Wilk, Auteur ; Anna Dubiec, Auteur ; Mariusz Cichoń, AuteurThe seasonal decline in offspring performance is a frequently reported phenomenon in species breeding in a temperate zone, but the potential effect of brood sex ratio on such declines has not been studied. Here, we predicted that this decline ma[...]
Article
Andrzej Dyrcz, Auteur ; Mariusz Cichoń, AuteurWe examine sex ratio variation and sex-specific probability of successful fledgling in relation to hatching date across 376 broods of Great Reed Warblers (Acrocephalus arundinaceus). The sex ratio of complete broods as well as broods with partia[...]
Article
Rafal Martyka, Auteur ; Joanna Rutkowska, Auteur ; Anna Dybek-Karpiuk, Auteur ; Mariusz Cichoń, Auteur ; Kazimierz Walasz, AuteurRecently, a number of studies have shown that female birds are able to control the sex of their progeny at the stage of the gamete. There is also some evidence that females adjust their investment in offspring depending on the sex of the embryo [...]
