Planet of Birds

Bluethroat (Luscinia svecica) Science Article 11 abstract Long-distance migrants have a more pointed and concave wing than short-distance migrants. These pointed and concave wings are thought to minimize the energy-cost of flight. Detailed analyses of wing morphology among populations might therefore offer clues about the migratory behaviour of those populations whose wintering areas are not […]

Bluethroat (Luscinia svecica) Science Article 3 abstract We analysed mitochondrial DNA (mtDNA) sequences from 154 bluethroats (Luscinia svecica) sampled at 21 sites throughout much of their Eurasian range. A previously reported, single base-pair mtDNA difference between L. s. svecica and L. s. namnetum was inconsistent upon expanded geographical sampling. A significant FST value (0.29) and […]

Bluethroat (Luscinia svecica) Science Article 1 abstract Female extra-pair copulations (EPCs) have selected for male paternity guarding strategies in many bird species. In the bluethroat, Luscinia s. svecica, males guard their mates closely during the last 2 d before the start of egg laying, but there is great individual variation in the intensity of mate […]

Bluethroat (Luscinia svecica) Science Article 5 abstract The evolutionary equilibrium hypothesis explains the existence of both acceptors and rejecters of brood parasite eggs within a host population as resulting from a balance between the costs of acceptance and the costs of recognition errors. In such equilibria conditional responses may play an important role. One such […]

Bluethroat (Luscinia svecica) Science Article 9 abstract If constant and size-specific values of the fat-free body mass are used for estimating the fat content of migrating birds, it is required that the fat-free body mass does not vary considerably between age and sex groups. To test this requirement, body masses of autumn migrating Blue-throats from […]

Bluethroat (Luscinia svecica) Science Article 21 abstract We studied the sex ratio of Bluethroat Luscinia svecica broods using AFLPs. Our aim was to test whether there is a bias towards males that could be explained by sexual selection theories, or conversely, a bias towards females that could help explain the female-biased sex ratio among juveniles […]

Bluethroat (Luscinia svecica) Science Article 12 abstract Los actuales conocimientos sobre la migraciondel Pechiazul Luscinia svecica en Europaestan basados principalmente en aves anilladasen paises nordicos M. HERNANDEZ et al, Ardeola 50(2), 2003, 259-263 Download article download full text (pdf)

Bluethroat (Luscinia svecica) Science Article 8 abstract Ecological factors may affect levels of extra-pair paternity (EPP) by influencing the costs and benefits of extra-paircopulation. During a 10-year study of a Norwegian bluethroat population, the frequency of EPP has varied extensively (8%-76% nests with EPP, 7%-33% extra-pair offspring among years). Here, we investigate whether socio-ecological factors(breeding […]

Bluethroat (Luscinia svecica) Science Article 13 abstract Recent divergence betweentwo morphologically different subspecies of bluethroat (Aves: Muscicapidae: Luscinia svecica)inferred from mitochondrial DNA sequence variation Questiau S, Eybert M-C, Gaginskaya AR, Gielly L & Taberlet P, Mol Ecol 7: 239-245 Download article download full text (pdf)

Bluethroat (Luscinia svecica) Science Article 6 abstract To assess the functions of male song in Bluethroat (Luscinia svecica svecica), seasonal and diurnal patterns of song and song-flight activity were analyzed by using data on individually marked birds. The seasonal patterns of singing and song-flight activity were found to peak shortly after male arrival and before […]