| 1. |
- Liu, Simin, et al.
(författare)
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Taxonomic revision of the Long-tailed RosefinchCarpodacus sibiricuscomplex
- 2020
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Ingår i: Journal of Ornithology. - : SPRINGER HEIDELBERG. - 2193-7192 .- 2193-7206. ; 161:4, s. 1061-1070
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Tidskriftsartikel (refereegranskat)abstract
- The Long-tailed RosefinchCarpodacus sibiricusbreeds in two widely disjunct areas in East Asia. Five subspecies are usually recognized. The plumage differences between different subspecies groups withinC. sibiricusare notable, suggesting it may actually comprise more than one species. However, proper taxonomic assessment has not been carried out, probably in part due to the scarcity and lack of museum specimens of some of these subspecies. In the current study, we re-evaluated the taxonomy of theC. sibiricuscomplex using molecular, acoustic and morphological data. Using mitochondrial DNA, the samples formed two clades, a northern clade (C. s. sibiricus,C. s. ussuriensisandC. s. sanguinolentus) and a southern clade (C. s. henriciandC. s. lepidus). We also revealed thatC. s. ussuriensisandC. s. sanguinolentusare mostly indistinguishable based on mitochondrial markers. This north/south split pattern is congruent with the pattern of plumage differences among north and south taxa. However, no diagnosable differences were found in their songs. We propose synonymizingC. s. ussuriensiswithC. s. sanguinolentus. At the species level, we suggest splitting the complex into two species, with Siberian Long-tailed RosefinchC. sibiricuscomprisingC. s. sibiricusandC. s. sanguinolentus, and Chinese Long-tailed RosefinchC. lepiduscomprisingC. l. henriciandC. l. lepidus.
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| 2. |
- Wei, Chentao, et al.
(författare)
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From the Himalayas to a continental Island : Integrative species delimitation in the Brownish-flanked Bush Warbler Horornis fortipes complex
- 2019
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Ingår i: Molecular Phylogenetics and Evolution. - : ACADEMIC PRESS INC ELSEVIER SCIENCE. - 1055-7903 .- 1095-9513. ; 131, s. 219-227
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Tidskriftsartikel (refereegranskat)abstract
- As species serve as basic units of study in many fields of biology, assessments of species limits are fundamental for such studies. Here, we used a multilocus dataset and different coalescent-based methods to analyze species delimitation and phylogenetic relationships in the Brownish-flanked Bush Warbler Horornis fortipes complex, which is widespread in the Sino-Himalayan region. We also examined the vocal and morphometric divergence within this complex. Our genetic results suggested that Horornis fortipes is composed of at least three independently evolving lineages, which diverged 1.1-1.8 million years ago. However, these lineages have hardly diverged in song or morphometrics and only very slightly in plumage. Our result indicate that there are three incipient species in Horonis fortipes complex diverged in central Himalayas and Hengduan Mountains, but not between the continent and Taiwan island.
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| 3. |
- Wei, Chentao, et al.
(författare)
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The evolutionary origin of variation in song length and frequency in the avian family Cettiidae
- 2017
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Ingår i: Journal of Avian Biology. - : Wiley. - 0908-8857 .- 1600-048X. ; 48:10, s. 1295-1300
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Tidskriftsartikel (refereegranskat)abstract
- Aspects of bird song have been shown to correlate with morphological and ecological features, including beak and body size, and habitat. Here we study evolution of song length and song frequency among 30 species belonging to the Cettiidae. Frequency is negatively correlated with body size, and song length increases with latitude. Although migration distance correlates with latitude, the association of song length with latitude is only present within the non-migratory species, implying the association is not a consequence of migration. We place these correlations in a historical framework to show that the body size-frequency association arose early in the group, but the latitude-song length association is more evolutionarily labile. We suggest that latitudinal correlates of song length may reflect increased importance of sexual selection by female choice.
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