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35 results for “collared flycatcher”
Data from: Cross-fostering eggs reveals that female collared flycatchers adjust clutch sex ratios according to parental ability to invest in offspring
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Data from: Sex-biased gene expression, sexual antagonism and levels of genetic diversity in the collared flycatcher (Ficedula albicollis) genome
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Data from: A high-density linkage map enables a second-generation collared flycatcher genome assembly and reveals the patterns of avian recombination rate variation and chromosomal evolution
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Data from: Female collared flycatchers choose neighbouring and older extra-pair partners from the pool of males around their nests
Extra-pair copulation is common among passerine birds. Females might engage in this behavior to obtain direct or indirect benefits. They may choose extra-pair males with larger ornaments, especially if they are costly to produce. Here we studied extra-pair paternity in the collared flycatcher. Genetic analysis allowed us to identify the presence or absence of extra-pair young in the focal nests, and to identify extra-pair fathers. We also identified potential males available as extra-pair sires around the nests of females who had extra-pair young. First, we tested the relationship between paternity in own nest and ornament size (wing patch and/or forehead patch), morphological traits and age of social males and females. Second, we compared the same suite of traits among social mates, extra-pair males and all potential extra-pair mates. Finally, we investigated the effect of the size of ornaments on the distance between the social nest and that of nest the extra-pair father. Contrary to our prediction, males with larger ornaments and longer wings lost more paternity in their nests. We also found that early breeders lost less paternity in their nests. Extra-pair males were older and had longer wings than social and potential extra-pair males. Females mainly obtained extra-pair mates near their nests but the distance did not vary according to ornamentation. These results could potentially be explained by differences in mate guarding strategy as older males may be more experienced in guarding their mate and attract other females more easily. More data about mate guarding and prospecting are needed to increase our understanding of mechanisms underlying the extra-pair paternity in birds.
Fig. 4 in Temperature Dependence Of The Breeding Parametres Of The Collared Flycatcher (Passeriformes, Muscicapidae) In The National Park Homilshanski Lisy (Ne Ukraine)
Fig. 4. Clutch size of Collared Flycatcher and a date of transition of average temperature through +5 °C (meteorological spring beginning).
Data from: MHC diversity, malaria and lifetime reproductive success in collared flycatchers
Major Histocompatibility Complex (MHC) genes encode proteins involved in the recognition of parasite-derived antigens. Their extreme polymorphism is presumed to be driven by coevolution with parasites. Host-parasite coevolution was also hypothesised to optimize within-individual MHC diversity at the intermediate level. Here, we use unique data on lifetime reproductive success (LRS) of female collared flycatchers to test whether LRS is associated with within-individual MHC class II diversity. We also examined the association between MHC and infection with avian malaria. Using 454 sequencing, we found that individual flycatchers carry between 3 and 23 functional MHC class II B alleles. Predictions of the optimality hypothesis were not confirmed by our data as the prevalence of blood parasites decreased with functional MHC diversity. Furthermore, we did not find evidence for an association between MHC diversity and LRS.
Data from: Digit ratio predicts the number of lifetime recruits in female collared flycatchers
The early environment in which an organism grows can have long-lasting impact on both its phenotype and fitness. However, assessing this environment comprehensively is a formidable task. The relative length of the second to the fourth digit (2D:4D) is a broadly studied skeletal trait that is fixed for life during ontogeny. 2D:4D has been shown to indicate various early effects including the perinatal steroid milieu in both humans and non-human animals. However, the fitness relevance of the early effects indicated by 2D:4D remains unknown. Here, we investigated hindlimb 2D:4D and measures of lifetime performance in wild collared flycatcher (Ficedula albicollis) females. We found that females with higher 2D:4D had a greater number of recruiting offspring to the breeding population. This was the case despite the fact that such females did not lay more eggs or breed more times during their reproductive life. Our results support that 2D:4D, known to be a retrospective marker of perinatal development, positively associates with female quality in the collared flycatcher.
Data from: Female collared flycatchers choose neighbouring and older extra-pair partners from the pool of males around their nests
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Data from: Glucocorticoid response to both predictable and unpredictable challenges detected as corticosterone metabolites in collared flycatcher droppings
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Data from: Genomic distribution and estimation of nucleotide diversity in natural populations: perspectives from the collared flycatcher (Ficedula albicollis) genome
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Data from: Subtle but ubiquitous selection on body size in a natural population of collared flycatchers over 33 years
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Data from: Low genetic variance in the duration of the incubation period in a collared flycatcher (Ficedula albicollis) population
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Data from: Song discrimination by nestling collared flycatchers during early development
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Data from: MHC diversity, malaria and lifetime reproductive success in collared flycatchers
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Data from: Digit ratio predicts the number of lifetime recruits in female collared flycatchers
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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