| population signatures of large-scale, long-term disjunction and small-scale, short-term habitat fragmentation in an afromontane forest bird. | the eastern afromontane cloud forests occur as geographically distinct mountain exclaves. the conditions of these forests range from large to small and from fairly intact to strongly degraded. for this study, we sampled individuals of the forest bird species, the montane white-eye zosterops poliogaster from 16 sites and four mountain archipelagos. we analysed 12 polymorphic microsatellites and three phenotypic traits, and calculated species distribution models (sdms) to project past distribution ... | 2014 | 24713824 |
| the evolution of contact calls in isolated and overlapping populations of two white-eye congeners in east africa (aves, zosterops). | closely related species often occur in geographic isolation, yet sometimes form contact zones with the potential to hybridize. pre-zygotic barriers may prevent cross breeding in such contact zones. in east africa, white-eye birds have evolved into various species, inhabiting different habitat types. zosterops poliogaster is found in cool and moist cloud forests at higher elevations, whereas z. abyssinicus is distributed across the dry and hot lowland savannahs. in most areas, these two species o ... | 2014 | 24885807 |
| patterns of contact call differentiation in the panmictic east african abyssinian white-eye zosterops abyssinicus (aves: passeriformes). | species distribution patterns range from highly disjunct to continuous, depending on their ecological demands and the availability of respective habitats. east african savannahs are mostly interconnected and ecologically comparatively homogenous and thus provide a prerequisite for a rather panmictic distribution pattern for species occurring in this habitat. the abyssinian white-eye zosterops abyssinicus is a savannah inhabiting bird species, representing such a continuous distribution. this spe ... | 2015 | 26811769 |