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Organism–environment interactions in a changing world: a mechanistic approach
TLDR
Three examples of environments (“the three poles”) that are changing rapidly and how avian species typical of these ecosystems are responding are presented and a mechanistic approach is presented to understand how organisms may respond.
Vocalizations of red-necked snow finch, Pyrgilauda ruficollis on the Tibetan Plateau, China : a syllable taxonomic signal?
TLDR
Vocalizations of endemic Tibetan Plateau steppe sparrow, red-necked snow finch (Pyrgilauda ruficollis) by using SAS-Lab Pro revealed that the syllable similarities are accordant with taxonomic status suggested in previous studies based on morphologic, ecological and molecular analysis methods.
Seasonal changes in adrenocortical responses to acute stress in Eurasian tree sparrow (Passer montanus) on the Tibetan Plateau: comparison with house sparrow (P. domesticus) in North America and with
TLDR
The results suggest that the extreme environment of the Tibetan Plateau does not have significant effects on adrenocortical responses to acute stress in Eurasian tree sparrows and house sparrowing, which may be a result of masking by human activities.
A comparison of the adrenocortical responses to acute stress in cardueline finches from the Tibetan Plateau, Arctic Alaska and lowland Western North America
TLDR
This study examined seasonal and sex differences in baseline and stress-induced plasma corticosterone levels in four cardueline finch species from Arctic Alaska, the Tibetan Plateau, western North America and Tibet to understand the potential effects of phylogenetic relationships on the modulation of adrenocortical responses to acute stress in free-living birds.
Comparison of adrenocortical responses to acute stress in lowland and highland Eurasian tree sparrows (Passer montanus): similar patterns during the breeding, but different during the prebasic molt.
TLDR
The results suggest that Eurasian tree sparrows from both harsh and benign environments have similar patterns of adrenocortical responses in the breeding stage, whereas they are different in the prebasic molt stage.
Coping with extremes: Remarkably blunt adrenocortical responses to acute stress in two sympatric snow finches on the Qinghai-Tibet Plateau during winter relative to other seasons.
TLDR
Both convergent and divergent phenotypic traits of adrenocortical responses to acute stress in two sympatric snow finches contribute to the understanding of the coping mechanisms of closely related species in the severe winter on the Qinghai-Tibet Plateau.
Sexual and geographic phenotypic variation of the brown ground chough pseudopodoces humilis in the tibetan plateau, China
TLDR
Regression analyses revealed that some morphological characteristics were positively related to latitude, and it was found that body length and male wing length were negatively correlated with latitude in specimens, all of which were captured on the east and south of the Tibetan Plateau.
Coping with extremes: convergences of habitat use, territoriality, and diet in summer but divergences in winter between two sympatric snow finches on the Qinghai-Tibet Plateau.
TLDR
The separations in the spatial niche and territoriality between WRSF and RNSF, especially in winter, may contribute to alleviating the pressure of interspecific competition, and promoting the coexistence of the two sympatric snow finches in the extreme environments on the Qinghai-Tibet Plateau.
Vocalizations and species limits of the plaintive cuckoo (Cacomantis merulinus) and the brush cuckoo (C. variolosus)
TLDR
On the basis of song similarity as assessed by sonogram qualitatively and quantitatively, the grey-bellied cuckoo (C. passerinus) was considered conspecific with C. variolosus, and the rusty-breasted cuckoos C. sepulcralis and C. merulinus were considered homologous and derived from common ancestry.
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