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Plumage variability and taxonomy of the Capped Seedeater Sporophila bouvreuil (Aves: Passeriformes: Emberizidae)
(MAGNOLIA PRESS, 2011)
The species Sporophila bouvreuil comprises four subspecies: S. b. bouvreuil, S. b. pileata, S. b. saturata and S. b. crypta. The males of each subspecies differ in plumage whereas the females and juveniles are very similar ...
Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)
(USP, 2010)
Many species in the genus Sporophila are migratory. Migration patterns, while poorly studied, may be influenced by seed production which can be very seasonal in some regions. The distribution of S. bouvreuil extends from ...
Identifying the Sister Species to the Rapid Capuchino Seedeater Radiation (Passeriformes: Sporophila)
(American Ornithologists' Union, 2013-10)
El género Neotropical Sporophila contiene un grupo de ocho especies conocido coloquialmente como los capuchinos del sur. Dicho grupo muestra una marcada variación fenotipica (principalmente en la coloración y el canto de ...
Descrição de uma zona híbrida e mecanismos de isolamento reprodutivo entre duas espécies de caboclinhos (Sporophila Pileata e S. Bouvreuil) (aves: passeriformes) e suas implicações para conservação
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ecologia e Recursos Naturais - PPGERNCâmpus São Carlos, 2018-09-13)
Hybridization is often a natural process that plays an important role in the evolutionary process among many species. On the other hand, when human environmental changes cause the phenomenon, it can result in detrimental ...
Análisis de las diferencias de coloración y vocalizaciones en especies de aves cercanamente emparentadas y simpátricas, y su importancia como mecanismos de aislamiento reproductivoAnalysis of color and vocal differences in closely related and sympatric bird species, and their importance as reproductive isolation mechanisms
(Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires, 2012)