Grasslands are globally threatened and their biodiversity, including grassland birds, is
declining markedly. To inform grassland bird conservation globally, we systematically …

INTRODUCTION Organisms in the early stages of speciation provide an opportunity to
understand the processes that govern reproductive isolation between taxa. Ecological or …

The breeding traits of Sporophila seedeaters have been relatively well studied in recent
years; nevertheless, a group of ten species in the genus, known as southern capuchinos …

Subtropical grasslands are highly susceptible to habitat conversion and number among
South America's most threatened ecosystems. The grasslands of northeastern Argentina …

Increasing habitat loss and fragmentation along with other factors have led to the dramatic
declines of multiple Sporophila seedeater species populations. However, the …

We present information on the nests, eggs, clutch size, and nestlings of the Chestnut
Seedeater (Sporophila cinnamomea), a migratory, globally vulnerable species restricted to …

The breeding biology of members of Sporophila seedeaters is relatively well known. In
general, females are solely responsible for nest building, but it is unclear how nest sites are …

El modelo de especiación alopátrica ha sido históricamente el principal para explicar la
diversificación biológica. Sin embargo, la genómica ha revelado que la especiación con …

Behavioral and phenotypic traits play an important role early in speciation by influencing 1)
where and when individuals come into contact and 2) whether closely related organisms are …

Figura 3.1. Nidos del Capuchino Iberá durante el estadio de (A) incubación y (B) de pichones.
Page 48 Capítulo 3. Biología reproductiva de aves amenazadas de pastizal. Caso de estudio …