Tag: Song Sparrow

Song repertoire size varies with HVC volume and is indicative of male quality in songsparrows (Melospiza melodia)

Song Sparrow (Melospiza melodia) Science Article 9 abstract Complex birdsong is a classic example of a sexually selected ornamental trait. In many species, femalesprefer males with large song repertoires, possibly because repertoire size is limited by the size of songcontrol nuclei which reflect developmental success Jeremy A. Pfaff et al, Proc. R. Soc. B (2007) […]

Fitness Correlates of Song Repertoire Size in Free-LivingSong Sparrows (Melospiza melodia)

Song Sparrow (Melospiza melodia) Science Article 8 abstract Models of sexual selection propose that exaggerated secondarysexual ornaments indicate a male’s own fitness and the fitnessof his offspring. These hypotheses have rarely been thoroughly testedin free-living individuals because overall fitness Jane M. Reid et al, Am. Nat. 2005. Vol. 165, 2005 Download article download full text […]

Effects of early nutrition on growth rate and adult size in songsparrows Melospiza melodia

Song Sparrow (Melospiza melodia) Science Article 4 abstract We manipulated the quantity of food provided to hand-reared song sparrows Melospizamelodia from 3 to 18 days post-hatching, a period when young birds in the wild areespecially likely to experience nutritional stress. A control group was given unlimitedfood, while an experimental group was limited to 60% of […]

Northwestern song sparrow populations show geneticeffects of sequential colonization

Song Sparrow (Melospiza melodia) Science Article 15 abstract Two genetic consequences are often considered evidence of a founder effect: substantialloss in genetic diversity and rapid divergence between source and founder populations.Single-step founder events have been studied for these effects CHRISTIN L. PRUETT and KEVIN WINKER, Molecular Ecology (2005) 14 , 1421-1434 Download article download full […]

Song Sparrow (Melospiza melodia)

[order] PASSERIFORMES | [family] Emberizidae | [latin] Melospiza melodia | [UK] Song Sparrow | [FR] Pinson chanteur | [DE] Singammer | [ES] | [NL] Zanggors Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Melospiza melodia NA widespread, also to c Mexico Melospiza melodia adusta Melospiza melodia atlantica Melospiza melodia caurina Melospiza […]