Song Sparrow (Melospiza melodia) Science Article 14 abstract Oscine songbirds are exposed to many more songs than they keep for their final song repertoire and littleis known about how a bird selects the particular song(s) to sing as an adult. We simulated in thelaboratory the key variables of the natural song learning environment and examined […]
Category: Passeriformes
A NEST-BUILDING MALE SONG SPARROW
Song Sparrow (Melospiza melodia) Science Article 13 abstract IN early March, 1933,a Song Sparrow (Melospiza melodia beata) came to our neighborhooda, rather closely built-up section of northeastern Columbus, Ohio. WILLIAM E. SCHANTZ, The AUK vol.54, 1937 Download article download full text (pdf)
SONG SPARROW (MELOSPIZA MELODIA) SONG VARIESWITH URBAN NOISE
Song Sparrow (Melospiza melodia) Science Article 1 abstract In urban environments, anthropogenic noise may mask bird song,especially the notes occurring at lower frequencies (1
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 […]
Selective attrition and individual song repertoiredevelopment in song sparrows
Song Sparrow (Melospiza melodia) Science Article 7 abstract We compared the songs of young male song sparrows, Melospiza melodia, in the early
Magnetic orientation of snow buntings (Plectrophenax nivalis), a species breeding in the high Arctic: passage migration through temperate-zone areas
Snow Bunting (Plectrophenax nivalis) Science Article 1 abstract Orientation tests were conducted with snow buntings (Plectrophenax nivalis) exposed to artificially manipulated magnetic fields, during both spring and autumn migration. Experiments were run under clear sunset skies and under simulated complete overcast. The birds closely followed experimental shifts of the magnetic fields during both seasons regardless […]
Abundance of Four Lark Species in Relationto Portuguese Farming Systems
Sky Lark (Alauda arvensis) Science Article 2 abstract Throughout much of Europe, farmland birds have declined more than those of other habitats, because of the abandonment of traditional farming systems and the simplification of remaining agricultural systems, including increased use of external inputs (Tucker & Heath 1994, Baldock 1991, Bignal & McCracken 1996). Traditional low-input […]