Tag: Luscinia svecica

Rejection of cuckoo Cuculus canorus eggs in relation to female age in the bluethroat Luscinia svecica

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 […]

Estimated effects of age and sex on the fat-free body mass of autumn migrating Bluethroats Luscinia svecica svecica.

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 […]

Intraspecific variation in sperm length in two passerine species, the Bluethroat Luscinia svecica and the Willow Warbler Phylloscopus trochilus.

Bluethroat (Luscinia svecica) Science Article 10 abstract Sperm cells are highly diversified in birds and considerable research effort has focused on variation in sperm morphology between species. However, surprisingly little is known about intraspecific variation in sperm morphology in birds. We analyzed between- and within-male variation in total sperm length in two passerine species, the […]

Male characteristics and fertilisation success in bluethroats.

Bluethroat (Luscinia svecica) Science Article 7 abstract Extra-pair copulations (EPCs) can create or intensify sexual selection and, provided that fertilisation success is related to phenotypic traits, help explain sexual dimorphism in socially monogamous species. Previous experimental manipulations of the ornamental coloration in male bluethroats, Luscinia s. svecica, have shown effects on their social mating success, […]

Phenology,duration and site fidelity of wintering bluethroat (Luscinia svecica) at Eilat, Israel

Bluethroat (Luscinia svecica) Science Article 14 abstract Between 1984 and 2002,a total of 7643 Bluethroats were ringed and 1054 of these were recaptured at the International Birding and Research Center (IBRCE) in Eilat,Israel (29 33 N, 34 57 E). M. Markovets,R. Yosef, Journal of Arid Environments 61 (2005) 93-100 Download article download full text (pdf)

Ultraviolet colour vision and ornamentationin bluethroats

Bluethroat (Luscinia svecica) Science Article 18 abstract Many birds see in the ultraviolet (300^400 nm), but there is limited evidence for colour communication (signalling by spectral shape independently of brightness) in this hidden’ waveband. Such data are critical for the understanding of extravagant plumage colours STAFFAN ANDERSSON AND TROND AMUNDSEN, Proc. R. Soc. Lond. B […]

EL PLUMAJE DE LOS PECHIAZULES (Luscinia svecica) INVERNANTES EN LA PROVINCIA DE MALAGA

Bluethroat (Luscinia svecica) Science Article 20 abstract El Pechiazul (Luscinia svecica) es quiza el unico paseriforme de nuestra region que presenta una gran variacion en el plumaje, tanto entre subespecies como entre individuosde la misma poblacion. Jose A. CORTES et al, REVISTA DE ANILLAMIENTO Download article download full text (pdf)

Wintering and migration of Bluethroat Luscinia svecica in central Spain

Bluethroat (Luscinia svecica) Science Article 2 abstract Aims: Birds have been able to change their breeding and wintering areas by tracking variation in different conditions. In the last decades, the winter distribution of the Bluethroat had been changing. This passerine winters mainly in Africa, although observations of birds wintering in Iberia have increased since the […]